The climate in Castelo Branco during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Castelo Branco and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (82°F), whilst at night 16°C (61°F) is normal.
Daytime temperature | 28°C 82.3°F |
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Nightly temperature | 16.3°C 61.3°F |
Average temperature | 22.1°C 71.8°F |
Daily sunshine | 8.7 hrs |
Avg rainfall | 33 mm 1.3 ins |
Rainy days | 7 days |
Sea temperature | 19.9°C 67.8°F |
Humidity | 57% |
Windspeed | 11.2kph 7 mph |
On average September is the 3rd driest month of the year in Castelo Branco with around 33mm 1.3 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 7 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.7 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 Castelo Branco in September 2024.
Best places to visit in September
Hottest month: | July | 30.5°C 86.9°F |
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Driest month: | July | 3mm 0.1ins |
Sunniest month: | August | 11.6hrs |
Coldest month: | January | 13.1°C 55.6°F |
Wettest month: | February | 101mm 4ins |