Unión de San Antonio Weather in September
What's the weather like in Unión de San Antonio (Jalisco) in September 2025?
The climate in Unión de San Antonio during September can be summarized as warm and damp.
September is in the fall / autumn in Unión de San Antonio and is typically the 6th warmest month of the year. Daytime maximum temperatures average around a comfortable 25°C (78°F), whilst at night 12°C (54°F) is normal.
| Daytime temperature | 25.4°C 77.7°F |
|---|---|
| Nightly temperature | 12.2°C 54°F |
| Average temperature | 18.8°C 65.8°F |
| Daily sunshine | 6 hrs |
| Avg rainfall | 117 mm 4.6 ins |
| Rainy days | 12 days |
| Sea temperature | 29.6°C 85.2°F |
| Humidity | 70% |
| Windspeed | 10.1kph 6 mph |
On average September is the 4th wettest month of the year in Unión de San Antonio with around 117mm 4.6 inches of rain making it a damp time to visit. This rainfall is typically spread over 12 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 Unión de San Antonio
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 Unión de San Antonio in September 2025.
Other monthly averages
Best places to visit in September
Unión de San Antonio weather stats
| Hottest month: | May | 30.1°C 86.2°F |
|---|---|---|
| Driest month: | March | 4mm 0.2ins |
| Sunniest month: | February | 8hrs |
| Coldest month: | January | 22°C 71.6°F |
| Wettest month: | August | 165mm 6.5ins |
© Google
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