Sanya weather in March
March in Sanya: warm, dry, with very humid — one of the best months to visit.
#1 of 12 months in Sanya · #70 of 897 destinations to visit in March · comfort 92/100 (tier S)
Updated June 2026 · climate normals from ERA5 reanalysis
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Sanya climate normals — March
| Daytime high | 28°C / 83°F | 🌤 warm |
|---|---|---|
| Nighttime low | 23°C / 73°F | |
| Rainfall | 18 mm / 0.7 in | ☀️ dry |
| Rainy days | 5 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 21°C / 69°F | |
| Sunshine | 10.7 h/day | |
| Daylight | 12 h | |
| Wind | 17 km/h / 11 mph | |
| Air quality (US AQI) | 57 | 🙂 moderate |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Sanya in March — FAQ
- Is March a good time to visit Sanya?
- March in Sanya: warm, dry, with very humid — one of the best months to visit. It ranks #1 of 12 months for Sanya on SeasonMap's comfort score (92/100).
- What is the weather like in Sanya in March?
- In March, Sanya averages a daily high of 28.2°C and a low of 22.5°C, with about 18.1 mm of rain over roughly 4.8 rainy days.
- What is the air quality in Sanya in March?
- Sanya has a mean US Air Quality Index of about 57 in March.