The climate in Silves during September can be summarized as warm and dry.
September is in the fall / autumn in Silves 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 (62°F) is normal.
| Daytime temperature | 26.1°C 78.9°F |
|---|---|
| Nightly temperature | 16.8°C 62.2°F |
| Average temperature | 21.4°C 70.5°F |
| Daily sunshine | 9.5 hrs |
| Avg rainfall | 18 mm 0.7 ins |
| Rainy days | 3 days |
| Sea temperature | 21°C 69.9°F |
| Humidity | 65% |
| Windspeed | 13kph 8 mph |
On average September is the 3rd driest month of the year in Silves with around 18mm 0.7 inches of rain making it a dry time to visit. This rainfall is typically spread over 3 days, although this may vary considerably.
On the flip side this corresponds to an average of 9.5 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 Silves in September 2025.
Best places to visit in September
| Hottest month: | August | 27°C 80.6°F |
|---|---|---|
| Driest month: | July | 3mm 0.1ins |
| Sunniest month: | August | 11.9hrs |
| Coldest month: | January | 14.7°C 58.5°F |
| Wettest month: | December | 101mm 4ins |