San Sebastián Weather in September
What's the weather like in San Sebastián (Basque Country) in September 2024?
The climate in San Sebastián during September can be summarized as warm and a little damp.
September is in the fall / autumn in San Sebastián and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 14°C (57°F) is normal.
| Daytime temperature | 22.7°C 72.8°F |
|---|---|
| Nightly temperature | 14°C 57.1°F |
| Average temperature | 18.3°C 64.9°F |
| Daily sunshine | 6.4 hrs |
| Avg rainfall | 97 mm 3.8 ins |
| Rainy days | 13 days |
| Sea temperature | 20.5°C 68.8°F |
| Humidity | 75% |
| Windspeed | 10.8kph 7 mph |
On average September is the 4th driest month of the year in San Sebastián with around 97mm 3.8 inches of rain making it a a little damp time to visit. This rainfall is typically spread over 13 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.4 hours of sunshine per day.
September temperatures in San Sebastián
September rainfall
September hourly sunshine
The data used in these monthly averages covers a period of over 100 years right up until last year. As such they are a valid prediction of what to expect for the weather in San Sebastián in September 2024.
Other monthly averages
Best places to visit in September
San Sebastián weather stats
| Hottest month: | August | 23.4°C 74.1°F |
|---|---|---|
| Driest month: | July | 62mm 2.4ins |
| Sunniest month: | July | 7.6hrs |
| Coldest month: | January | 10.9°C 51.6°F |
| Wettest month: | November | 143mm 5.6ins |
© Google
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