San Carlos Sija Weather in September
What's the weather like in San Carlos Sija (Quetzaltenango) in September 2025?
The climate in San Carlos Sija during September can be summarized as mild and wet.
September is in the fall / autumn in San Carlos Sija and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 20°C (68°F), whilst at night 10°C (49°F) is normal.
| Daytime temperature | 19.8°C 67.6°F |
|---|---|
| Nightly temperature | 9.6°C 49.3°F |
| Average temperature | 14.7°C 58.5°F |
| Daily sunshine | 5.8 hrs |
| Avg rainfall | 156 mm 6.2 ins |
| Rainy days | 24 days |
| Sea temperature | 29.5°C 85.1°F |
| Humidity | 84% |
| Windspeed | 8.3kph 5 mph |
On average September is the 2nd wettest month of the year in San Carlos Sija with around 156mm 6.2 inches of rain making it a wet time to visit. This rainfall is typically spread over 24 days, although this may vary considerably.
On the flip side this corresponds to an average of 5.8 hours of sunshine per day.
September temperatures in San Carlos Sija
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 Carlos Sija in September 2025.
Other monthly averages
Best places to visit in September
San Carlos Sija weather stats
| Hottest month: | May | 22.2°C 72°F |
|---|---|---|
| Driest month: | January | 0mm 0ins |
| Sunniest month: | January | 8.9hrs |
| Coldest month: | January | 16.8°C 62.2°F |
| Wettest month: | June | 173mm 6.8ins |
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