The climate in Ciudad Mendoza during September can be summarized as mild and wet.
September is in the fall / autumn in Ciudad Mendoza and is typically the 5th warmest month of the year. Daytime maximum temperatures average around 23°C (74°F), whilst at night 11°C (52°F) is normal.
Daytime temperature | 23.3°C 73.9°F |
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Nightly temperature | 11.2°C 52.1°F |
Average temperature | 17.2°C 63°F |
Daily sunshine | 5 hrs |
Avg rainfall | 142 mm 5.6 ins |
Rainy days | 16 days |
Sea temperature | 29.4°C 84.9°F |
Humidity | 73% |
Windspeed | 8.6kph 5 mph |
On average September is the wettest month of the year in Ciudad Mendoza with around 142mm 5.6 inches of rain making it a wet time to visit. This rainfall is typically spread over 16 days, although this may vary considerably.
On the flip side this corresponds to an average of 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 Ciudad Mendoza in September 2025.
Best places to visit in September
Hottest month: | May | 25.7°C 78.3°F |
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Driest month: | December | 10mm 0.4ins |
Sunniest month: | February | 7.3hrs |
Coldest month: | January | 20.4°C 68.7°F |
Wettest month: | September | 142mm 5.6ins |