Ciudad Tecún Umán Weather in October
What's the weather like in Ciudad Tecún Umán (San Marcos) in October 2025?
The climate in Ciudad Tecún Umán during October can be summarized as hot, humid and very wet.
October is in the fall / autumn in Ciudad Tecún Umán and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a steamy 32°C (90°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 32.3°C 90.1°F |
|---|---|
| Nightly temperature | 21.2°C 70.1°F |
| Average temperature | 26.7°C 80.1°F |
| Daily sunshine | 5.9 hrs |
| Avg rainfall | 358 mm 14.1 ins |
| Rainy days | 18 days |
| Sea temperature | 29°C 84.2°F |
| Humidity | 81% |
| Windspeed | 9.7kph 6 mph |
On average October is the 3rd wettest month of the year in Ciudad Tecún Umán with around 358mm 14.1 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 5.9 hours of sunshine per day.
October temperatures in Ciudad Tecún Umán
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 Ciudad Tecún Umán in October 2025.
Other monthly averages
Best places to visit in October
Ciudad Tecún Umán weather stats
| Hottest month: | April | 34.2°C 93.6°F |
|---|---|---|
| Driest month: | January | 7mm 0.3ins |
| Sunniest month: | January | 7.7hrs |
| Coldest month: | January | 32.7°C 90.9°F |
| Wettest month: | September | 441mm 17.4ins |
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