The climate in Tortosa during September can be summarized as warm and reasonably dry.
September is in the fall / autumn in Tortosa and is typically the 3rd warmest month of the year. Daytime maximum temperatures average around a comfortable 28°C (82°F), whilst at night 17°C (63°F) is normal.
| Daytime temperature | 27.8°C 82°F |
|---|---|
| Nightly temperature | 17.3°C 63.1°F |
| Average temperature | 22.5°C 72.5°F |
| Daily sunshine | 7.9 hrs |
| Avg rainfall | 80 mm 3.1 ins |
| Rainy days | 8 days |
| Sea temperature | 25.1°C 77.1°F |
| Humidity | 67% |
| Windspeed | 10.1kph 6 mph |
On average September is the 2nd wettest month of the year in Tortosa with around 80mm 3.1 inches of rain making it a reasonably dry time to visit. This rainfall is typically spread over 8 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.9 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 Tortosa in September 2025.
Best places to visit in September
| Hottest month: | July | 30.2°C 86.4°F |
|---|---|---|
| Driest month: | July | 15mm 0.6ins |
| Sunniest month: | July | 11hrs |
| Coldest month: | January | 14.1°C 57.4°F |
| Wettest month: | October | 84mm 3.3ins |