San Marcos Weather in June
What's the weather like in San Marcos (San José) in June 2025?
The climate in San Marcos during June can be summarized as warm, humid and very wet.
June is in the summer in San Marcos and is typically the 4th warmest month of the year. Daytime maximum temperatures average around a muggy 27°C (80°F), whilst at night 19°C (67°F) is normal.
| Daytime temperature | 26.5°C 79.6°F |
|---|---|
| Nightly temperature | 19.2°C 66.5°F |
| Average temperature | 22.8°C 73°F |
| Daily sunshine | 6.7 hrs |
| Avg rainfall | 337 mm 13.3 ins |
| Rainy days | 23 days |
| Sea temperature | 28.9°C 84°F |
| Humidity | 84% |
| Windspeed | 10.4kph 7 mph |
On average June is the 4th wettest month of the year in San Marcos with around 337mm 13.3 inches of rain making it a very wet time to visit. This rainfall is typically spread over 23 days, although this may vary considerably.
On the flip side this corresponds to an average of 6.7 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: | April | 27.4°C 81.3°F |
|---|---|---|
| Driest month: | January | 6mm 0.2ins |
| Sunniest month: | March | 8.1hrs |
| Coldest month: | December | 25.4°C 77.7°F |
| Wettest month: | October | 442mm 17.4ins |
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