Sintra weather in March
March in Sintra: cool, a little rain, with clean air — an excellent time to visit.
#7 of 12 months in Sintra · #223 of 897 destinations to visit in March · comfort 86/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
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Sintra climate normals — March
| Daytime high | 15°C / 60°F | 🙂 cool |
|---|---|---|
| Nighttime low | 11°C / 52°F | |
| Rainfall | 38 mm / 1.5 in | 🌦 some rain |
| Rainy days | 7 days | |
| Humidity | 79% | 💦 very humid |
| Dew point | 9°C / 49°F | |
| Sunshine | 9.9 h/day | |
| Daylight | 12 h | |
| Wind | 22 km/h / 14 mph | |
| Air quality (US AQI) | 45 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Sintra in March — FAQ
- Is March a good time to visit Sintra?
- March in Sintra: cool, a little rain, with clean air — an excellent time to visit. It ranks #7 of 12 months for Sintra on SeasonMap's comfort score (86/100).
- What is the weather like in Sintra in March?
- In March, Sintra averages a daily high of 15.4°C and a low of 11.1°C, with about 38.1 mm of rain over roughly 6.6 rainy days.
- What is the air quality in Sintra in March?
- Sintra has a mean US Air Quality Index of about 45 in March.