San Alejo Weather in September
What's the weather like in San Alejo (La Unión) in September 2024?
The climate in San Alejo during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in San Alejo and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 22°C (71°F) is normal.
| Daytime temperature | 31°C 87.8°F |
|---|---|
| Nightly temperature | 21.6°C 70.9°F |
| Average temperature | 26.3°C 79.3°F |
| Daily sunshine | 7.2 hrs |
| Avg rainfall | 358 mm 14.1 ins |
| Rainy days | 28 days |
| Sea temperature | 29.6°C 85.3°F |
| Humidity | 80% |
| Windspeed | 8.6kph 5 mph |
On average September is the wettest month of the year in San Alejo with around 358mm 14.1 inches of rain making it a very wet time to visit. This rainfall is typically spread over 28 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.2 hours of sunshine per day.
September temperatures in San Alejo
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 Alejo in September 2024.
Other monthly averages
Best places to visit in September
San Alejo weather stats
| Hottest month: | April | 35.4°C 95.7°F |
|---|---|---|
| Driest month: | February | 1mm 0ins |
| Sunniest month: | February | 10.2hrs |
| Coldest month: | September | 30.8°C 87.4°F |
| Wettest month: | September | 358mm 14.1ins |
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