San Luis Weather in September
What's the weather like in San Luis (Petén) in September 2024?
The climate in San Luis during September can be summarized as hot, humid and very wet.
September is in the fall / autumn in San Luis and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 29°C (85°F), whilst at night 21°C (69°F) is normal.
| Daytime temperature | 29.3°C 84.7°F |
|---|---|
| Nightly temperature | 20.6°C 69°F |
| Average temperature | 24.9°C 76.8°F |
| Daily sunshine | 6.1 hrs |
| Avg rainfall | 441 mm 17.4 ins |
| Rainy days | 20 days |
| Sea temperature | 29.6°C 85.3°F |
| Humidity | 79% |
| Windspeed | 13kph 8 mph |
On average September is the 2nd wettest month of the year in San Luis with around 441mm 17.4 inches of rain making it a very wet time to visit. This rainfall is typically spread over 20 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.1 hours of sunshine per day.
September temperatures in San Luis
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 Luis in September 2024.
Other monthly averages
Best places to visit in September
San Luis weather stats
| Hottest month: | June | 30.1°C 86.2°F |
|---|---|---|
| Driest month: | March | 85mm 3.3ins |
| Sunniest month: | March | 7.6hrs |
| Coldest month: | January | 24.7°C 76.5°F |
| Wettest month: | July | 502mm 19.8ins |
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