San Marcos Weather in June
What's the weather like in San Marcos (Santa Bárbara) in June 2025?
The climate in San Marcos during June can be summarized as hot, humid and very wet.
June is in the summer in San Marcos and is typically the 2nd warmest month of the year. Daytime maximum temperatures average around a steamy 31°C (87°F), whilst at night 21°C (70°F) is normal.
| Daytime temperature | 30.6°C 87.1°F |
|---|---|
| Nightly temperature | 21°C 69.8°F |
| Average temperature | 25.8°C 78.4°F |
| Daily sunshine | 7.2 hrs |
| Avg rainfall | 292 mm 11.5 ins |
| Rainy days | 19 days |
| Sea temperature | 29.3°C 84.7°F |
| Humidity | 82% |
| Windspeed | 19.1kph 12 mph |
On average June is the 2nd wettest month of the year in San Marcos with around 292mm 11.5 inches of rain making it a very wet time to visit. This rainfall is typically spread over 19 days, although this may vary considerably.
On the flip side this corresponds to an average of 7.2 hours of sunshine per day.
June temperatures in San Marcos
June rainfall
June 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 June 2025.
Other monthly averages
San Marcos weather stats
| Hottest month: | May | 31.4°C 88.5°F |
|---|---|---|
| Driest month: | March | 43mm 1.7ins |
| Sunniest month: | March | 8.2hrs |
| Coldest month: | January | 26.1°C 79°F |
| Wettest month: | September | 295mm 11.6ins |
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