The climate in Guia during September can be summarized as warm and dry.
September is in the fall / autumn in Guia and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (77°F), whilst at night 18°C (64°F) is normal.
| Daytime temperature | 25°C 77°F |
|---|---|
| Nightly temperature | 18°C 64.4°F |
| Average temperature | 21.5°C 70.7°F |
| Daily sunshine | 8.3 hrs |
| Avg rainfall | 13 mm 0.5 ins |
| Rainy days | 2 days |
| Sea temperature | 23.5°C 74.3°F |
| Humidity | 69% |
| Windspeed | 15.1kph 9 mph |
On average September is the 5th driest month of the year in Guia with around 13mm 0.5 inches of rain making it a dry time to visit. This rainfall is typically spread over 2 days, although this may vary considerably.
On the flip side this corresponds to an average of 8.3 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 Guia in September 2025.
Best places to visit in September
| Hottest month: | August | 25.5°C 77.9°F |
|---|---|---|
| Driest month: | July | 1mm 0ins |
| Sunniest month: | August | 9.9hrs |
| Coldest month: | January | 17.4°C 63.3°F |
| Wettest month: | December | 51mm 2ins |