Naco Weather in September
What's the weather like in Naco (Santa Bárbara) in September 2025?
The climate in Naco during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Naco and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (85°F), whilst at night 20°C (68°F) is normal.
| Daytime temperature | 29.2°C 84.6°F |
|---|---|
| Nightly temperature | 20.2°C 68.4°F |
| Average temperature | 24.7°C 76.5°F |
| Daily sunshine | 6 hrs |
| Avg rainfall | 331 mm 13 ins |
| Rainy days | 19 days |
| Sea temperature | 29.6°C 85.3°F |
| Humidity | 86% |
| Windspeed | 18.4kph 11 mph |
On average September is the 2nd wettest month of the year in Naco with around 331mm 13 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 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 Naco
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 Naco in September 2025.
Other monthly averages
Best places to visit in September
Naco weather stats
| Hottest month: | May | 30.5°C 86.9°F |
|---|---|---|
| Driest month: | March | 53mm 2.1ins |
| Sunniest month: | March | 8hrs |
| Coldest month: | January | 24.8°C 76.6°F |
| Wettest month: | July | 335mm 13.2ins |
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