Hendaye Weather in September
What's the weather like in Hendaye (Aquitaine) in September 2025?
The climate in Hendaye during September can be summarized as warm and damp.
September is in the fall / autumn in Hendaye and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 14°C (58°F) is normal.
| Daytime temperature | 23.3°C 73.9°F |
|---|---|
| Nightly temperature | 14.3°C 57.7°F |
| Average temperature | 18.8°C 65.8°F |
| Daily sunshine | 6.6 hrs |
| Avg rainfall | 111 mm 4.4 ins |
| Rainy days | 13 days |
| Sea temperature | 20.5°C 68.8°F |
| Humidity | 75% |
| Windspeed | 10.4kph 7 mph |
On average September is the 4th driest month of the year in Hendaye with around 111mm 4.4 inches of rain making it a 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 6.6 hours of sunshine per day.
September temperatures in Hendaye
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 Hendaye in September 2025.
Other monthly averages
Best places to visit in September
Hendaye weather stats
| Hottest month: | August | 24°C 75.2°F |
|---|---|---|
| Driest month: | July | 62mm 2.4ins |
| Sunniest month: | September | 6.6hrs |
| Coldest month: | January | 12°C 53.6°F |
| Wettest month: | November | 158mm 6.2ins |
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