Potosí Weather in September
What's the weather like in Potosí (Rivas) in September 2025?
The climate in Potosí during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Potosí and is typically the 4th coldest month of the year. Daytime maximum temperatures average around a steamy 30°C (86°F), whilst at night 22°C (72°F) is normal.
| Daytime temperature | 30°C 85.9°F |
|---|---|
| Nightly temperature | 22.1°C 71.7°F |
| Average temperature | 26°C 78.8°F |
| Daily sunshine | 6 hrs |
| Avg rainfall | 278 mm 11 ins |
| Rainy days | 24 days |
| Sea temperature | 28.9°C 83.9°F |
| Humidity | 82% |
| Windspeed | 6.8kph 4 mph |
On average September is the 2nd wettest month of the year in Potosí with around 278mm 11 inches of rain making it a very wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
September temperatures in Potosí
September rainfall
September hourly sunshine
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 Potosí in September 2025.
Other monthly averages
Best places to visit in September
Potosí weather stats
| Hottest month: | May | 31.6°C 88.9°F |
|---|---|---|
| Driest month: | March | 3mm 0.1ins |
| Sunniest month: | February | 8.8hrs |
| Coldest month: | December | 29.7°C 85.5°F |
| Wettest month: | October | 305mm 12ins |
© Google