San Sebastian Weather in September
What's the weather like in San Sebastian (Ilocos) in September 2024?
The climate in San Sebastian during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in San Sebastian and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 24°C (74°F) is normal.
| Daytime temperature | 30.6°C 87°F |
|---|---|
| Nightly temperature | 23.5°C 74.2°F |
| Average temperature | 27°C 80.6°F |
| Daily sunshine | 6.8 hrs |
| Avg rainfall | 389 mm 15.3 ins |
| Rainy days | 16 days |
| Sea temperature | 29.3°C 84.7°F |
| Humidity | 85% |
| Windspeed | 10.1kph 6 mph |
On average September is the 4th wettest month of the year in San Sebastian with around 389mm 15.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
September temperatures in San Sebastian
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 Sebastian in September 2024.
Other monthly averages
Best places to visit in September
San Sebastian weather stats
| Hottest month: | May | 32.7°C 90.9°F |
|---|---|---|
| Driest month: | January | 1mm 0ins |
| Sunniest month: | February | 9.9hrs |
| Coldest month: | January | 29.5°C 85.1°F |
| Wettest month: | August | 701mm 27.6ins |
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