Ustupo Weather in September
What's the weather like in Ustupo (Kuna Yala) in September 2025?
The climate in Ustupo during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Ustupo and is typically the 3rd coldest month of the year. Daytime maximum temperatures average around a steamy 29°C (84°F), whilst at night 22°C (72°F) is normal.
| Daytime temperature | 29.1°C 84.3°F |
|---|---|
| Nightly temperature | 22.4°C 72.2°F |
| Average temperature | 25.7°C 78.3°F |
| Daily sunshine | 5 hrs |
| Avg rainfall | 217 mm 8.6 ins |
| Rainy days | 17 days |
| Sea temperature | 29°C 84.2°F |
| Humidity | 87% |
| Windspeed | 10.1kph 6 mph |
On average September is the 6th wettest month of the year in Ustupo with around 217mm 8.6 inches of rain making it a very wet time to visit. This rainfall is typically spread over 17 days, although this may vary considerably.
On the flip side this corresponds to an average of 5 hours of sunshine per day.
September temperatures in Ustupo
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 Ustupo in September 2025.
Other monthly averages
Best places to visit in September
Ustupo weather stats
| Hottest month: | April | 30.7°C 87.3°F |
|---|---|---|
| Driest month: | March | 50mm 2ins |
| Sunniest month: | February | 7.1hrs |
| Coldest month: | November | 28.7°C 83.7°F |
| Wettest month: | October | 264mm 10.4ins |
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