The climate in Ericeira during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Ericeira and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (78°F), whilst at night 17°C (62°F) is normal.
Daytime temperature | 25.7°C 78.3°F |
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Nightly temperature | 16.5°C 61.7°F |
Average temperature | 21.1°C 70°F |
Daily sunshine | 9.1 hrs |
Avg rainfall | 33 mm 1.3 ins |
Rainy days | 6 days |
Sea temperature | 20.4°C 68.7°F |
Humidity | 69% |
Windspeed | 12.2kph 8 mph |
On average September is the 4th driest month of the year in Ericeira with around 33mm 1.3 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 9.1 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 Ericeira in September 2025.
Best places to visit in September
Hottest month: | August | 26.8°C 80.2°F |
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Driest month: | July | 8mm 0.3ins |
Sunniest month: | August | 11.6hrs |
Coldest month: | January | 14.3°C 57.7°F |
Wettest month: | January | 126mm 5ins |