San Martín Sacatepéquez Weather in September
What's the weather like in San Martín Sacatepéquez (Quetzaltenango) in September 2025?
The climate in San Martín Sacatepéquez during September can be summarized as mild and very wet.
September is in the fall / autumn in San Martín Sacatepéquez and is typically the 6th warmest month of the year. Daytime maximum temperatures average around 23°C (73°F), whilst at night 12°C (53°F) is normal.
| Daytime temperature | 22.6°C 72.6°F |
|---|---|
| Nightly temperature | 11.9°C 53.3°F |
| Average temperature | 17.2°C 63°F |
| Daily sunshine | 5.9 hrs |
| Avg rainfall | 361 mm 14.2 ins |
| Rainy days | 24 days |
| Sea temperature | 29.5°C 85.1°F |
| Humidity | 86% |
| Windspeed | 7.9kph 5 mph |
On average September is the 2nd wettest month of the year in San Martín Sacatepéquez with around 361mm 14.2 inches of rain making it a very 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 5.9 hours of sunshine per day.
September temperatures in San Martín Sacatepéquez
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 Martín Sacatepéquez in September 2025.
Other monthly averages
Best places to visit in September
San Martín Sacatepéquez weather stats
| Hottest month: | May | 24.2°C 75.6°F |
|---|---|---|
| Driest month: | January | 3mm 0.1ins |
| Sunniest month: | January | 8.8hrs |
| Coldest month: | January | 21.3°C 70.3°F |
| Wettest month: | June | 366mm 14.4ins |
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