Unión Weather in September
What's the weather like in Unión (San Luis) in September 2024?
The climate in Unión during September can be summarized as mild and dry.
September is in the spring in Unión and is typically the 5th coldest month of the year. Daytime maximum temperatures average around 22°C (71°F), whilst at night 5°C (42°F) is normal.
| Daytime temperature | 21.6°C 70.9°F |
|---|---|
| Nightly temperature | 5.4°C 41.7°F |
| Average temperature | 13.5°C 56.3°F |
| Daily sunshine | 8 hrs |
| Avg rainfall | 24 mm 1 ins |
| Rainy days | 5 days |
| Sea temperature | 12.4°C 54.4°F |
| Humidity | 57% |
| Windspeed | 11.2kph 7 mph |
On average September is the 5th driest month of the year in Unión with around 24mm 1 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 8 hours of sunshine per day.
September temperatures in Unión
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 in September 2024.
Other monthly averages
Best places to visit in September
Unión weather stats
| Hottest month: | January | 31.8°C 89.2°F |
|---|---|---|
| Driest month: | June | 10mm 0.4ins |
| Sunniest month: | February | 10.7hrs |
| Coldest month: | July | 16°C 60.8°F |
| Wettest month: | December | 75mm 3ins |
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