San Luis Weather in October
What's the weather like in San Luis (Petén) in October 2025?
The climate in San Luis during October can be summarized as hot, humid and very wet.
October is in the fall / autumn in San Luis and is typically the 6th coldest month of the year. Daytime maximum temperatures average around a muggy 28°C (83°F), whilst at night 20°C (68°F) is normal.
| Daytime temperature | 28.1°C 82.5°F |
|---|---|
| Nightly temperature | 20°C 67.9°F |
| Average temperature | 24°C 75.2°F |
| Daily sunshine | 6 hrs |
| Avg rainfall | 338 mm 13.3 ins |
| Rainy days | 18 days |
| Sea temperature | 29.4°C 84.9°F |
| Humidity | 78% |
| Windspeed | 13kph 8 mph |
On average October is the 5th wettest month of the year in San Luis with around 338mm 13.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 18 days, although this may vary considerably.
On the flip side this corresponds to an average of 6 hours of sunshine per day.
October temperatures in San Luis
October rainfall
October 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 October 2025.
Other monthly averages
Best places to visit in October
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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