The climate in San Nicolás during September can be summarized as warm and dry.
September is in the fall / autumn in San Nicolás 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 (65°F) is normal.
Daytime temperature | 25.2°C 77.4°F |
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Nightly temperature | 18.2°C 64.8°F |
Average temperature | 21.7°C 71.1°F |
Daily sunshine | 8.4 hrs |
Avg rainfall | 12 mm 0.5 ins |
Rainy days | 2 days |
Sea temperature | 23.3°C 73.9°F |
Humidity | 68% |
Windspeed | 15.5kph 10 mph |
On average September is the 5th driest month of the year in San Nicolás with around 12mm 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 8.4 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 San Nicolás in September 2025.
Best places to visit in September
Hottest month: | August | 25.6°C 78.1°F |
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Driest month: | July | 1mm 0ins |
Sunniest month: | August | 9.9hrs |
Coldest month: | January | 17.8°C 64°F |
Wettest month: | December | 51mm 2ins |