The climate in Vale da Amoreira during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Vale da Amoreira and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (83°F), whilst at night 17°C (62°F) is normal.
| Daytime temperature | 28.3°C 82.9°F |
|---|---|
| Nightly temperature | 16.5°C 61.7°F |
| Average temperature | 22.4°C 72.3°F |
| Daily sunshine | 8.8 hrs |
| Avg rainfall | 31 mm 1.2 ins |
| Rainy days | 6 days |
| Sea temperature | 19.9°C 67.8°F |
| Humidity | 57% |
| Windspeed | 11.9kph 7 mph |
On average September is the 4th driest month of the year in Vale da Amoreira with around 31mm 1.2 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 6 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.8 hours of sunshine per day.
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 Vale da Amoreira in September 2025.
Best places to visit in September
| Hottest month: | August | 30.7°C 87.3°F |
|---|---|---|
| Driest month: | August | 4mm 0.2ins |
| Sunniest month: | August | 11.8hrs |
| Coldest month: | January | 13.5°C 56.3°F |
| Wettest month: | January | 95mm 3.7ins |