Sintra weather in April
April in Sintra: nice, a little rain, with clean air — an excellent time to visit.
#6 of 12 months in Sintra · #219 of 897 destinations to visit in April · comfort 87/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sintra in April
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Sintra climate normals — April
| Daytime high | 16°C / 61°F | 😎 nice |
|---|---|---|
| Nighttime low | 12°C / 54°F | |
| Rainfall | 60 mm / 2.4 in | 🌦 some rain |
| Rainy days | 10 days | |
| Humidity | 76% | 💦 very humid |
| Dew point | 10°C / 50°F | |
| Sunshine | 11.1 h/day | |
| Daylight | 13.2 h | |
| Wind | 23 km/h / 14 mph | |
| Air quality (US AQI) | 43 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Sintra in April — FAQ
- Is April a good time to visit Sintra?
- April in Sintra: nice, a little rain, with clean air — an excellent time to visit. It ranks #6 of 12 months for Sintra on SeasonMap's comfort score (87/100).
- What is the weather like in Sintra in April?
- In April, Sintra averages a daily high of 16.1°C and a low of 12.2°C, with about 60 mm of rain over roughly 10.2 rainy days.
- What is the air quality in Sintra in April?
- Sintra has a mean US Air Quality Index of about 43 in April.