20-Year Climate Average
Santorini, South Aegean, Greece Weather in August
Normal High
82°F
Normal Low
76°F
Rainy Days
~1 of the month
Chance of Rain
2%
Humidity
69%
UV index
Not available
Daylight
13.5 hours
Peak wind
18 mph
Usually good for: walking and sightseeing, beaches and outdoor dining.
Based on August climate records from 2006–2025 (Open-Meteo Historical Weather Archive). These are planning averages, not a forecast. Data: Open-Meteo.com, CC BY 4.0.
Current conditions
Forecast versus the climate baseline
71°F
It currently feels like 69°F with 57% humidity, a 55°F dew point and 12 mph wind. Climate averages describe the month; this live reading is what matters for plans today.
72° / 65° · 0% rain
73° / 66° · 0% rain
74° / 66° · 0% rain
Best Months to Visit Santorini, South Aegean, Greece
Ranked by historical rainy-day frequency — the driest months over the past 20 years.
Methodology
Monthly values use the 2001–2020 observation period. Temperature, precipitation, humidity or dew point, wind, UV and daylight are shown only when the selected source provides them; unavailable fields are never estimated or silently replaced. These are planning normals, not guarantees for a specific trip.
What is the weather like in Santorini, South Aegean, Greece in August?
The 20-year average high in Santorini, South Aegean, Greece in August is 82°F, with a low around 76°F and about 1 rainy days.