The climate in Costa de Caparica during September can be summarized as warm and dry.
September is in the fall / autumn in Costa de Caparica and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 26°C (79°F), whilst at night 17°C (63°F) is normal.
Daytime temperature | 26.3°C 79.3°F |
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Nightly temperature | 17.1°C 62.8°F |
Average temperature | 21.7°C 71.1°F |
Daily sunshine | 9.3 hrs |
Avg rainfall | 26 mm 1 ins |
Rainy days | 6 days |
Sea temperature | 20.4°C 68.7°F |
Humidity | 68% |
Windspeed | 12.2kph 8 mph |
On average September is the 4th driest month of the year in Costa de Caparica with around 26mm 1 inches of rain making it a 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 9.3 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 Costa de Caparica in September 2025.
Best places to visit in September
Hottest month: | August | 27.3°C 81.1°F |
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Driest month: | July | 5mm 0.2ins |
Sunniest month: | August | 11.7hrs |
Coldest month: | January | 14.7°C 58.5°F |
Wettest month: | November | 112mm 4.4ins |