Santa Lucía Cotzumalguapa Weather in September
What's the weather like in Santa Lucía Cotzumalguapa (Escuintla) in September 2025?
The climate in Santa Lucía Cotzumalguapa during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in Santa Lucía Cotzumalguapa and is typically the coldest month of the year. Daytime maximum temperatures average around a steamy 31°C (88°F), whilst at night 22°C (71°F) is normal.
| Daytime temperature | 31.3°C 88.3°F |
|---|---|
| Nightly temperature | 21.6°C 70.8°F |
| Average temperature | 26.4°C 79.5°F |
| Daily sunshine | 6.8 hrs |
| Avg rainfall | 482 mm 19 ins |
| Rainy days | 22 days |
| Sea temperature | 29.5°C 85.1°F |
| Humidity | 79% |
| Windspeed | 7.9kph 5 mph |
On average September is the 2nd wettest month of the year in Santa Lucía Cotzumalguapa with around 482mm 19 inches of rain making it a very wet time to visit. This rainfall is typically spread over 22 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
September temperatures in Santa Lucía Cotzumalguapa
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 Santa Lucía Cotzumalguapa in September 2025.
Other monthly averages
Best places to visit in September
Santa Lucía Cotzumalguapa weather stats
| Hottest month: | May | 32.9°C 91.2°F |
|---|---|---|
| Driest month: | January | 6mm 0.2ins |
| Sunniest month: | March | 9.2hrs |
| Coldest month: | January | 32.4°C 90.3°F |
| Wettest month: | October | 483mm 19ins |
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