San José de Las Matas Weather in September
What's the weather like in San José de Las Matas (Santiago) in September 2025?
The climate in San José de Las Matas during September can be summarized as hot, humid and damp.
September is in the fall / autumn in San José de Las Matas and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 33°C (91°F), whilst at night 21°C (69°F) is normal.
| Daytime temperature | 32.9°C 91.2°F |
|---|---|
| Nightly temperature | 20.5°C 68.9°F |
| Average temperature | 26.7°C 80.1°F |
| Daily sunshine | 7.4 hrs |
| Avg rainfall | 113 mm 4.4 ins |
| Rainy days | 15 days |
| Sea temperature | 29°C 84.2°F |
| Humidity | 74% |
| Windspeed | 10.1kph 6 mph |
On average September is the 5th wettest month of the year in San José de Las Matas with around 113mm 4.4 inches of rain making it a damp time to visit. This rainfall is typically spread over 15 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.4 hours of sunshine per day.
September temperatures in San José de Las Matas
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 San José de Las Matas in September 2025.
Other monthly averages
Best places to visit in September
San José de Las Matas weather stats
| Hottest month: | August | 32.9°C 91.2°F |
|---|---|---|
| Driest month: | July | 53mm 2.1ins |
| Sunniest month: | August | 8.6hrs |
| Coldest month: | January | 27.9°C 82.2°F |
| Wettest month: | May | 184mm 7.2ins |
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