20-Year Climate Average
Barcelona, Catalonia, Spain Weather in September
Normal High
76°F
Normal Low
65°F
Rainy Days
~14 of the month
Chance of Rain
47%
Humidity
77%
UV index
Not available
Daylight
12.5 hours
Peak wind
10 mph
Usually good for: beaches and outdoor dining, running and hiking.
Based on September 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
65°F
It currently feels like 69°F with 98% humidity, a 64°F dew point and 3 mph wind. Climate averages describe the month; this live reading is what matters for plans today.
75° / 65° · 65% rain
75° / 67° · 48% rain
71° / 64° · 63% rain
Best Months to Visit Barcelona, Catalonia, Spain
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 Barcelona, Catalonia, Spain in September?
The 20-year average high in Barcelona, Catalonia, Spain in September is 76°F, with a low around 65°F and about 14 rainy days.