San Juan Tecuaco Weather in September
What's the weather like in San Juan Tecuaco (Santa Rosa) in September 2025?
The climate in San Juan Tecuaco during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in San Juan Tecuaco and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 19°C (67°F) is normal.
| Daytime temperature | 28.9°C 84°F |
|---|---|
| Nightly temperature | 19.3°C 66.7°F |
| Average temperature | 24.1°C 75.4°F |
| Daily sunshine | 6.4 hrs |
| Avg rainfall | 409 mm 16.1 ins |
| Rainy days | 26 days |
| Sea temperature | 29.5°C 85.1°F |
| Humidity | 84% |
| Windspeed | 7.6kph 5 mph |
On average September is the wettest month of the year in San Juan Tecuaco with around 409mm 16.1 inches of rain making it a very wet time to visit. This rainfall is typically spread over 26 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.4 hours of sunshine per day.
September temperatures in San Juan Tecuaco
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 Juan Tecuaco in September 2025.
Other monthly averages
Best places to visit in September
San Juan Tecuaco weather stats
| Hottest month: | April | 31.5°C 88.7°F |
|---|---|---|
| Driest month: | January | 1mm 0ins |
| Sunniest month: | February | 9.8hrs |
| Coldest month: | December | 29°C 84.2°F |
| Wettest month: | September | 409mm 16.1ins |
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