San José weather in March
March in San José: warm, a little rain, with clean air — an excellent time to visit.
#3 of 12 months in San José · #154 of 897 destinations to visit in March · comfort 88/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on San José in March
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San José climate normals — March
| Daytime high | 27°C / 80°F | 🌤 warm |
|---|---|---|
| Nighttime low | 17°C / 63°F | |
| Rainfall | 55 mm / 2.1 in | 🌦 some rain |
| Rainy days | 14 days | |
| Humidity | 77% | 💦 very humid |
| Dew point | 16°C / 62°F | |
| Sunshine | 10.7 h/day | |
| Daylight | 12.1 h | |
| Wind | 11 km/h / 7 mph | |
| Air quality (US AQI) | 40 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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San José in March — FAQ
- Is March a good time to visit San José?
- March in San José: warm, a little rain, with clean air — an excellent time to visit. It ranks #3 of 12 months for San José on SeasonMap's comfort score (88/100).
- What is the weather like in San José in March?
- In March, San José averages a daily high of 26.7°C and a low of 17.3°C, with about 54.6 mm of rain over roughly 14.2 rainy days.
- What is the air quality in San José in March?
- San José has a mean US Air Quality Index of about 40 in March.