Big Sur weather in March
March in Big Sur: cool, rainy, with clean air — a good time to visit.
#9 of 12 months in Big Sur · #677 of 897 destinations to visit in March · comfort 69/100 (tier C)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Big Sur in March
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Big Sur climate normals — March
| Daytime high | 15°C / 59°F | 🙂 cool |
|---|---|---|
| Nighttime low | 9°C / 49°F | |
| Rainfall | 118 mm / 4.6 in | 🌧 rainy |
| Rainy days | 12 days | |
| Humidity | 78% | 💦 very humid |
| Dew point | 8°C / 46°F | |
| Sunshine | 9.8 h/day | |
| Daylight | 12 h | |
| Wind | 21 km/h / 13 mph | |
| Snowfall | 0.3 cm / 0.1 in | |
| Air quality (US AQI) | 42 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Big Sur in March — FAQ
- Is March a good time to visit Big Sur?
- March in Big Sur: cool, rainy, with clean air — a good time to visit. It ranks #9 of 12 months for Big Sur on SeasonMap's comfort score (69/100).
- What is the weather like in Big Sur in March?
- In March, Big Sur averages a daily high of 15°C and a low of 9.4°C, with about 117.8 mm of rain over roughly 12 rainy days.
- What is the air quality in Big Sur in March?
- Big Sur has a mean US Air Quality Index of about 42 in March.