Blog
Weather explainers, travel-planning guides, and the occasional rant about fog — from the WeatherPerch team.
This Week in Weather: Rachel in the East Pacific
A roundup of the notable hazards our data feeds tracked in the week of September 28, 2026: tropical systems, notable earthquakes, volcanic activity, severe weather alerts.
WeatherPerch Data Desk · Sep 28, 2026 · 1 min read
This Week in Weather: Fay in the Atlantic
A roundup of the notable hazards our data feeds tracked in the week of September 21, 2026: tropical systems, notable earthquakes, volcanic activity, severe weather alerts.
Tretorn Rubber Boots: Matching the Style to Your Actual Weather
Tretorn's rubber boot range spans a 16 cm shaft to a 39 cm one. Shaft height, lining and midsole — not color — are what decide which pair survives your winter.
Fishing Weather on the Great Lakes: Water Temperature & Wind
Great Lakes fishing is seasonal. Spring and fall are best. Summer means algae and warm thermoclines. Winter is possible but cold. Water temperature drives fish behavior more than air temperature.
Rock Climbing in Moab: Managing Extreme Heat on Red Rock
Moab climbing is seasonal by necessity. Summer (110°F+) is survival mode. Spring and fall are ideal. Winter is cold-hands territory. Shade selection is the primary strategy.
This Week in Weather: Six in the Atlantic
A roundup of the notable hazards our data feeds tracked in the week of September 14, 2026: tropical systems, notable earthquakes, volcanic activity, severe weather alerts.
Mountain Biking Utah Slickrock: Heat, Flash Floods & Monsoon
Utah's slickrock is best in spring and fall. Summer is brutally hot (110°F+). Monsoon season (July–September) brings afternoon thunderstorms and flash-flood risk in narrow canyons.
Hiking the Smoky Mountains: Fog, Humidity & Elevation Challenges
The Smokies are beautiful and brutal. Fog (smoke-like haze from vegetation) reduces visibility year-round. Humidity hovers at 80%+. September and October offer the clearest views.
Trail Running in California: Fire Season & Air Quality
California trail running is best June–September, but fire season (August–October) means smoke days. Spring trails are muddy, winter is wet. Here's how to run safely through it all.
Golf Weather in Florida: Heat, Humidity & Afternoon Storms
Florida golf means managing heat and humidity year-round. October through April are playable; May through September are brutal. Afternoon thunderstorms are predictable and avoidable.
Stargazing Weather in Arizona: Clear Nights & Light Pollution
Arizona offers the clearest skies in the continental US. But clear nights require specific weather conditions: low humidity, stable air, and the right moon phase. Here's how to plan.
Cycling Weather in Seattle: Rain & Daylight Planning
Seattle rain isn't a season, it's a lifestyle. Most days are drizzle, not downpour. Spring and fall are best for cycling; summer is dry but short. Winter is doable with the right gear.
California Beach Weather: Microclimates Along the Coast
California's coast has microclimates: San Diego stays warm year-round, Northern California has fog, and Southern California's summer isn't guaranteed beach weather. Here's what to expect.
Hiking Weather in Colorado: Mountain Conditions Above 10,000 Feet
Colorado hiking above 10,000 feet means weather changes fast. Temperature drops 3.5°F per thousand feet, storms form by afternoon, and altitude affects your body. Here's what to expect.
Best Running Weather in Boston: Season-by-Season Breakdown
Boston's running seasons are distinct: spring is unpredictable, summer is humid, fall is near-perfect, and winter demands serious preparation. Here's how to run through them all.
Heatwave Forecast: How to Plan Around Dangerous Heat
A heatwave is more than a hot afternoon. Timing, overnight recovery, humidity, and official alerts shape the real risk.
Planning Outdoor Weddings: Weather Risk & Seasonal Choices
Outdoor weddings require weather planning. Summer is hot and humid. Spring/fall are ideal but unpredictable. Winter is cold. Knowing seasonal patterns helps you choose dates and backup plans.
Outdoor Work Weather: Construction & Labor in Heat & Cold
Outdoor work is seasonal by necessity and safety. Summer heat is a hazard (heat exhaustion, heat stroke). Winter cold requires technical gear. Fall and spring are optimal. Know your limits.
The North Face DryVent: What the Waterproof Claim Actually Covers
DryVent is a polyurethane coating, and The North Face describes what it does in words rather than numbers. Here's what that claim covers, and what it leaves out.
Running in New York City: Heat, Humidity & Urban Heat Island
NYC running has a distinct weather personality. Summer is brutally humid (75%+ humidity, heat-index 95°F+). Fall is optimal. Urban heat island means city runs are 5–10°F hotter than suburbs.
Q4 (Oct–Dec) Climate Outlook: Which US Cities Change the Most
20 years of climate normals, not a forecast — here's how much October–December typically shifts in 12 major US cities, and which ones barely move.
Fall Photography in New England: Peak Foliage Timing & Conditions
New England fall color peaks for 2–3 weeks per region. Temperature, frost, and rain determine timing. Photographers need clear skies and specific weather patterns to capture peak color.
Hurricane Dolly: The Slow Storm South Texas Remembers
Hurricane Dolly reached Category 2 strength before striking South Padre Island in 2008, bringing wind, deep rainfall, flooding, and a long recovery.
How to Read a Weather Forecast: A Translation Guide
Precipitation probability, dew point, and sustained wind all mean something specific. Here's how to translate a forecast into actual plans.
Surfing in Hawaii: Swell Patterns by Season & Island
Hawaii has two swell seasons. Winter (Nov–Feb) brings big waves to north shores. Summer (May–Sept) brings south swell. Offshore winds in morning create glass conditions. Trade winds complicate afternoons.
Kayaking the Pacific Northwest: Tides, Currents & Rain Management
Pacific Northwest kayaking is tidal kayaking. Tides create currents that define paddling. Rain is background noise. Wind is the real hazard. Plan around tide tables, not just weather forecasts.
This Week in Weather: Karina in the East Pacific
A roundup of the notable hazards our data feeds tracked this week: tropical systems, notable earthquakes, volcanic activity.
6 US Cities Ranked by Typical September Running Weather
We ran our own running-weather thresholds against 20 years of climate normals for every US city we track. Here's the actual ranking, not a vibe.
'It Was Frozen Yesterday' Is Not a Safety Plan
Ice thickness isn't just about how cold it's been — it changes by the hour, by the spot, and by factors most people never think to check before walking out.
This Week in Weather: Lala in the Central Pacific
A roundup of the notable hazards our data feeds tracked this week: tropical systems, notable earthquakes, volcanic activity, severe weather alerts.
How Cold Is Actually Too Cold to Run Outside?
There's no single magic number, but there is a real point where outdoor running stops being character-building and starts being a genuine risk. Here's how to find yours.
Rain, Drizzle, and Showers Are Not the Same Word Wearing Different Hats
Meteorologists use these words precisely, even though everyone else uses them interchangeably. Here's what each one is actually telling you.
The Cottage Weekend We Almost Lost to a Storm That Never Came
We'd nearly cancelled a whole weekend at the lake over a forecast that, forty-eight hours out, was still going to change three more times before it mattered.
The Weather Conditions That Actually Make Golden Hour Golden
Not every sunset earns the hype. Photographers have quietly figured out which sky conditions produce the good ones — and which just look fine in person.
Why a 'Perfectly Calm Day' Can Still Delay Your Flight
Airports rearrange entire runway operations around wind direction, and a gentle breeze from the wrong angle causes more delays than people realize.
Does Weather Actually Affect Your Mood, or Is That Just Something We Say?
The link between weather and mood is real, but smaller and weirder than the folk wisdom suggests. Sunshine isn't the simple happiness lever people assume it is.
Is It Actually Going to Rain This Weekend? An Honest Answer
You asked on a Tuesday. Here's why that question doesn't have a real answer yet, and when it actually will.
Iceland Doesn't Have a Bad Season, It Has Different Kinds of Extreme
There's no 'skip this month' answer for Iceland — every season trades one kind of spectacular for a different kind of demanding. Here's how to actually pick.
The Road Trip Weather Mistake Everyone Makes at Least Once
Checking the weather for your destination and forgetting to check it for the eleven hours of driving in between is a very specific, very common trap.
Why Your Weather App and Your Neighbor's Weather App Disagree
Same city, same afternoon, two different apps showing two different forecasts. It's not a bug — it's the fingerprint of a genuinely different model underneath.
Why Sailors Care More About Wind Direction Than Speed
A strong wind from the wrong direction can be more useless than a gentle breeze from the right one. Here's the logic behind reading wind the way sailors do.
The Campsite We Packed Up Six Hours Early
Nothing about the lake looked dangerous. The forecast, on the other hand, was not being subtle about what was coming that night.
The Sky Can Look Fine and Still Be Genuinely Bad for You
Wildfire smoke can travel thousands of miles and thin out to the point of near-invisibility while still carrying a real health risk. Here's how to actually tell.
The Beach Day Checklist That Isn't Just 'Check If It's Sunny'
Sunny doesn't mean safe, and cloudy doesn't mean cancel. Here's the actual set of numbers worth checking before you commit to a beach day.
The Weather Forecast Is Younger Than You'd Think
For most of human history, 'checking the forecast' meant looking at the sky and hoping. The first real public forecast is younger than some grandparents.
Why Some Snow Closes Schools and Some Snow Doesn't (A Grown-Up's Guide)
Two inches shuts down one city and barely registers in another. It's not inconsistency — it's infrastructure, timing, and a formula most people never see.
Why Some Coastal Cities Basically Have Two Different Summers a Mile Apart
Downtown is sweating through 90°F while the beach two miles away is a genuinely chilly 65°F. This isn't inconsistency — it's a well-understood, predictable pattern.
The Picnic That Should Have Been Cancelled and Wasn't
Everyone assumed the whole afternoon was a write-off. The nowcast disagreed, and the nowcast, it turns out, was paying closer attention than the group chat.
Goa's Weather Has Two Settings: Perfect and 'Absolutely Not'
There is no in-between season in Goa. It's either the best beach weather you'll find anywhere, or a monsoon that will rearrange your entire itinerary.
How Meteorologists Actually Predict the Weather (No, Not a Crystal Ball)
It's not vibes, it's not a magic satellite, and it's definitely not a groundhog. Here's what actually happens between 'raw data' and 'the forecast on your phone.'
Ozone Action Days: The Air Quality Alert With No Smoke, No Haze, No Warning Signs
You can't see ground-level ozone building, and by the time it's bad enough to notice, it's already a genuine health concern. Here's what actually triggers it.
Should You Actually Skip the Run Because of Air Quality? A Real Answer
AQI 80 and AQI 160 are not the same conversation. Here's how to actually decide whether to run outside, move indoors, or just take the day off.
The Marathon Pace I Changed at Mile Two
I'd trained for a cool morning. Race day had other plans, and the only reason I finished upright was that I found out before the start line did.
What Those Colored Flags at the Beach Actually Mean
Purple isn't decorative and yellow isn't a suggestion. A quick, practical guide to the beach flag system most people notice but never actually learn.
The Weather Checklist Every Hiker Skips (and Regrets)
Trailhead weather and summit weather are basically two different climates wearing the same forecast. Here's what to actually check before you go up.
Why Forecasts Are Sometimes Wrong (and Why That's Not as Bad as It Sounds)
A forecast isn't a prophecy — it's a probability wearing a confident outfit. Here's what's actually happening when the sky doesn't do what your app said it would.
The Pavement Test Every Dog Owner Should Actually Use
If it's too hot for your bare hand for seven seconds, it's too hot for your dog's paws. That single rule solves more heat-related pet problems than people expect.
Wind Chill, Heat Index, and 'Feels Like': Three Numbers Wearing a Trench Coat
'Feels like' temperature is doing the work of two completely different formulas depending on the season, and nobody tells you which one is running the show.
The Match We Watched Outside Instead of in the Rain
Forty of us, one back garden, a big screen borrowed from a neighbour, and a forecast that decided the whole thing was worth the risk.
The UV Index Is Not About Heat, and That Confuses Everyone
You can get sunburned on a cold, cloudy day and feel perfectly safe on a hot, hazy one. The UV index explains why — and it has nothing to do with temperature.
In Defense of Fog, the Weather Everyone Loves to Hate
Fog cancels flights, ruins commutes, and gets zero respect. It also does something genuinely strange and beautiful to the atmosphere. A rebuttal, sort of.
Snow Forecast and Warnings: What to Check Before You Travel
Snow totals matter, but timing, wind, ice, and official warnings often matter more for the journey in front of you.
Is December Actually the Best Time to Visit Dubai? A Cranky Investigation
Everyone says December is Dubai's perfect month. Everyone is mostly right, annoyingly. Here's what the weather actually does, and what nobody mentions.
Lluvia Hoy: Cómo Leer el Pronóstico de Tu Ciudad
Qué significan la probabilidad de lluvia, las horas y los chubascos cuando necesitas decidir qué hacer hoy.
How to Pack for a City That Can't Make Up Its Mind
Some cities have weather. Others have weather opinions, all of them at once, all in the same afternoon. Here's how to pack for the second kind.
The Run I Skipped Because of Orange Sky
The sky looked like a filter, the air quality number looked like a warning, and only one of those two things was actually telling me the truth.
Dew Point vs. Humidity: The Only Two Numbers That Actually Matter
Relative humidity lies to you constantly. Dew point never does. Here's why one number on your weather app deserves way more attention than it gets.
The Umbrella Index: When '30% Chance of Rain' Actually Means Something
A 30% chance of rain doesn't mean it will rain for 30% of the day, or on 30% of the city. Here's what that number is actually telling you — and when to trust it.
Read a Forecast Like a Pilot, Not Like a Doomscroller
Pilots don't panic-refresh a weather app. They read three numbers, make a decision, and move on. You can do the same thing before your Tuesday commute.
The Festival Set We Didn't Get Rained Out Of
We had exactly one act we cared about seeing, a two-hour gap to fill beforehand, and a storm cell with impeccably bad timing.
Rain Forecast Near Me: How to Read the Next Few Hours
A practical way to answer the question that matters most: will rain reach your plans, and when should you check?
How Weather Actually Determines Whether You See an Eclipse
Orbital mechanics decide where an eclipse happens. Cloud cover decides whether you actually see it.
Cherry Blossom Season Is a Forecast, Not a Fixed Date, and People Keep Missing It
Sakura season moves by up to two weeks year to year depending purely on spring temperatures — booking a fixed date months out is a genuine gamble.
The Temperature That Actually Produces the Fastest Marathon Times
It's not the coldest day, and it's definitely not a warm one. There's a surprisingly narrow sweet spot, and elite race organizers plan around it deliberately.
The Summer I Stopped Watering My Garden Out of Guilt
I'd been dragging a hose around my Bristol garden every evening out of pure habit, right up until I noticed rain was scheduled for most of the nights I was bothering to water.
The Mountain Pass We Didn't Sleep In
Both ends of our route looked fine. It was the twelve thousand feet in between that nearly got interesting.
Why Hurricanes Get Human Names (and Who Actually Picks Them)
There's a real committee, a real rotating list, and a real reason certain names get permanently retired. It's more organized than most people assume.
The Dog Walk That Outran a Squall
Wellington weather changes its mind more often than my dog does, which is saying something, because my dog has a lot of opinions about walk timing.
Why Some Flights Leave a Trail Across the Sky and Others Don't
Contrails aren't about the plane — they're about the exact atmospheric conditions at cruising altitude, and they're a surprisingly legitimate mini weather forecast.
Why Pollen Forecasts Are So Much Less Precise Than Temperature Forecasts
Weather models can nail tomorrow's temperature within a degree or two. Pollen counts are a much blurrier science, and there's a real reason for the gap.
Your Garden's 'Last Frost Date' Is a Bet, Not a Promise
That date on the seed packet is a 50/50 statistical average, not a guarantee — and treating it like a hard deadline is how a lot of tomato seedlings die.
The Weather Number That Predicts Your Energy Bill Better Than Temperature Does
Two months with the same average temperature can produce very different heating bills. Utilities have a better metric than 'average temp,' and you can use it too.
Barometric Pressure: The Number Your Grandmother's Knees Understood Before Science Did
'I can feel a storm coming in my joints' isn't just folklore — there's a real, if modest, mechanism behind it. Let's talk about the most underrated number in weather.
How to Actually Read a Ski Resort's Snow Report
'Base depth' and 'new snow' are telling you two very different things, and a resort can technically be honest while still leading with the flattering number.
The Cliff Walk We Postponed by Forty Minutes
Forty minutes doesn't sound like much until it's the difference between a clear coastal path and a wall of fog rolling in off the Atlantic.
Someone Was Struck by Lightning. Here Is What to Do First
The storm is still dangerous, but the person is safe to touch. Call emergency services, reduce further exposure, and begin CPR if needed.
The Power Went Out During a Storm. What Now?
A dark house gets stressful quickly. Protect people first, keep the refrigerator closed, avoid carbon monoxide, and report dangerous lines from a distance.
Why Some Places Get Hit by Lightning Constantly and Others Almost Never
There's an actual global lightning hotspot, and it's not where most people would guess. The reason comes down to a very specific combination of geography.
Five Thunderstorm 'Facts' Everyone Believes That Are Just Wrong
Rubber tires don't protect you from lightning, and it doesn't have to be raining for you to get struck. A myth-busting pass through thunderstorm folklore.
Storm Safety: What Actually Works and What's Myth
Rubber tires don't protect you. Your phone won't explode. Here's what actually keeps you safe when severe weather arrives.
The Beach Day We Almost Ruined With Optimism
Clear sky, warm sand, and a rip current risk that nobody standing on the beach could have possibly guessed just by looking at the water.
A Severe Weather Preparedness Plan That Actually Works
A plan made during a clear sky is worth a hundred decisions made during a watch. Here's exactly what to prepare before the season hits.
Weather Forecast Icons & Symbols: What Each One Actually Means
A cloud with a raindrop. A sun hiding behind a cloud. A wind symbol. Here's what each icon means and when to trust it vs. when to dig deeper.
Before You Move Somewhere for the Weather, Check the Actual Data
'It's sunny there' is not climate research. Here's what to actually look up before relocating somewhere for better weather — because averages hide a lot.
The Flight I Didn't Miss Because of a Radar Tile
Everyone else at the gate found out from the departures board. I found out forty minutes earlier, from a moving blob on a map.
How to Use Weather Maps Without Getting Lost in the Colors
Weather maps become useful when you choose one layer, one place, and one question before you start exploring.
Tornado Watch vs. Warning: The Two Words People Mix Up at the Worst Time
One means 'pay attention.' The other means 'take shelter right now.' Confusing them is one of the most dangerous, most common mistakes in severe weather.
Planning an Outdoor Wedding Around Weather You Can't Know Yet
You're booking a venue a year out for a forecast that won't exist for 51 weeks. Here's how to actually plan for that instead of just hoping.
How to Actually Read a Satellite Loop Instead of Just Watching It
Most people watch a satellite animation the way they'd watch a lava lamp — pretty, vaguely informative, not actually understood. Here's what it's really showing you.
The Wedding We Almost Moved Indoors for Nothing
Two hundred chairs, a marquee company on speed dial, and a bride who'd made peace with a plan B that, it turned out, we never actually needed.
What to Do During Rainy Season Before the Water Rises
Rainy season is easier when small routines are already in place: clear drains, protect medicines and documents, watch alerts, and never gamble on floodwater.
Do Your Ears Really 'Feel' Weather Changes? Let's Check.
Somewhere between old folklore and real physiology sits a genuine, if modest, explanation for why some people swear they can feel a storm coming.
A Severe Thunderstorm Watch Is Your Cue to Get Ready
A watch is not a warning, but it is not background noise either. Use that window to bring people, pets, and loose outdoor items closer to safety.
Why Your Backyard Has Different Weather Than the Forecast Says
The nearest weather station might be five miles away, at a different elevation, next to different terrain entirely. Here's why 'the forecast' and 'your yard' can quietly disagree.
The Camping Weather Check Most People Do Backwards
Checking the daytime forecast and ignoring the overnight low is the single most common camping-weather mistake, and it's an easy one to fix.
The Day WeatherPerch Cancelled My College Before My College Did
The school's robocall came at 6:12am. I'd already texted my study group at 11pm the night before to say don't bother setting an alarm.