Guanagazapa Weather in September
What's the weather like in Guanagazapa (Escuintla) in September 2025?
The climate in Guanagazapa during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Guanagazapa and is typically the 6th coldest 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 | 19.8°C 67.6°F |
| Average temperature | 24.5°C 76.1°F |
| Daily sunshine | 6.2 hrs |
| Avg rainfall | 572 mm 22.5 ins |
| Rainy days | 25 days |
| Sea temperature | 29.5°C 85.1°F |
| Humidity | 86% |
| Windspeed | 7.6kph 5 mph |
On average September is the wettest month of the year in Guanagazapa with around 572mm 22.5 inches of rain making it a very wet time to visit. This rainfall is typically spread over 25 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.2 hours of sunshine per day.
September temperatures in Guanagazapa
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 Guanagazapa in September 2025.
Other monthly averages
Best places to visit in September
Guanagazapa weather stats
| Hottest month: | May | 30.8°C 87.4°F |
|---|---|---|
| Driest month: | January | 8mm 0.3ins |
| Sunniest month: | February | 9.3hrs |
| Coldest month: | December | 29°C 84.2°F |
| Wettest month: | September | 572mm 22.5ins |
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