Santo Tomás La Unión Weather in October
What's the weather like in Santo Tomás La Unión (Suchitepéquez) in October 2025?
The climate in Santo Tomás La Unión during October can be summarized as hot, humid and very wet.
October is in the fall / autumn in Santo Tomás La Unión and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a muggy 29°C (84°F), whilst at night 19°C (66°F) is normal.
| Daytime temperature | 28.7°C 83.7°F |
|---|---|
| Nightly temperature | 18.7°C 65.7°F |
| Average temperature | 23.7°C 74.7°F |
| Daily sunshine | 5.6 hrs |
| Avg rainfall | 653 mm 25.7 ins |
| Rainy days | 20 days |
| Sea temperature | 29.2°C 84.5°F |
| Humidity | 87% |
| Windspeed | 9kph 6 mph |
On average October is the 3rd wettest month of the year in Santo Tomás La Unión with around 653mm 25.7 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 5.6 hours of sunshine per day.
October temperatures in Santo Tomás La Unión
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 Santo Tomás La Unión in October 2025.
Other monthly averages
Best places to visit in October
Santo Tomás La Unión weather stats
| Hottest month: | April | 30°C 86°F |
|---|---|---|
| Driest month: | January | 33mm 1.3ins |
| Sunniest month: | February | 9.1hrs |
| Coldest month: | January | 29.1°C 84.4°F |
| Wettest month: | September | 733mm 28.9ins |
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