Concepción del Sur Weather in September
What's the weather like in Concepción del Sur (Santa Bárbara) in September 2025?
The climate in Concepción del Sur during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Concepción del Sur and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 19°C (66°F) is normal.
| Daytime temperature | 28.9°C 84°F |
|---|---|
| Nightly temperature | 19.1°C 66.4°F |
| Average temperature | 24°C 75.2°F |
| Daily sunshine | 5.8 hrs |
| Avg rainfall | 420 mm 16.5 ins |
| Rainy days | 22 days |
| Sea temperature | 29.5°C 85.1°F |
| Humidity | 87% |
| Windspeed | 16.9kph 11 mph |
On average September is the wettest month of the year in Concepción del Sur with around 420mm 16.5 inches of rain making it a very wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
September temperatures in Concepción del Sur
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 Concepción del Sur in September 2025.
Other monthly averages
Best places to visit in September
Concepción del Sur weather stats
| Hottest month: | May | 30.8°C 87.4°F |
|---|---|---|
| Driest month: | March | 36mm 1.4ins |
| Sunniest month: | March | 8.9hrs |
| Coldest month: | January | 26.2°C 79.2°F |
| Wettest month: | September | 420mm 16.5ins |
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