San Marcos Weather in January
What's the weather like in San Marcos (Sucre) in January 2026?
The climate in San Marcos during January can be summarized as hot, humid and dry.
January is in the winter in San Marcos and is typically the 5th coldest month of the year. Daytime maximum temperatures average around a steamy 33°C (92°F), whilst at night 22°C (72°F) is normal.
| Daytime temperature | 33.2°C 91.8°F |
|---|---|
| Nightly temperature | 22.2°C 72°F |
| Average temperature | 27.7°C 81.9°F |
| Daily sunshine | 6.8 hrs |
| Avg rainfall | 16 mm 0.6 ins |
| Rainy days | 5 days |
| Sea temperature | 27.8°C 82.1°F |
| Humidity | 76% |
| Windspeed | 11.9kph 7 mph |
On average January is the driest month of the year in San Marcos with around 16mm 0.6 inches of rain making it a dry time to visit. This rainfall is typically spread over 5 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.8 hours of sunshine per day.
January temperatures in San Marcos
January rainfall
January 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 Marcos in January 2025.
Other monthly averages
Best places to visit in January
San Marcos weather stats
| Hottest month: | March | 34.4°C 93.9°F |
|---|---|---|
| Driest month: | January | 16mm 0.6ins |
| Sunniest month: | January | 6.8hrs |
| Coldest month: | October | 31.3°C 88.3°F |
| Wettest month: | August | 296mm 11.7ins |
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