Sintra weather in January
January in Sintra: cool, dry, with clean air — a great time to visit.
#11 of 12 months in Sintra · #346 of 897 destinations to visit in January · comfort 78/100 (tier B)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Sintra in January
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Sintra climate normals — January
| Daytime high | 13°C / 56°F | 🙂 cool |
|---|---|---|
| Nighttime low | 10°C / 49°F | |
| Rainfall | 29 mm / 1.1 in | ☀️ dry |
| Rainy days | 6 days | |
| Humidity | 74% | 💧 humid |
| Dew point | 7°C / 45°F | |
| Sunshine | 7.5 h/day | |
| Daylight | 9.8 h | |
| Wind | 21 km/h / 13 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 January — FAQ
- Is January a good time to visit Sintra?
- January in Sintra: cool, dry, with clean air — a great time to visit. It ranks #11 of 12 months for Sintra on SeasonMap's comfort score (78/100).
- What is the weather like in Sintra in January?
- In January, Sintra averages a daily high of 13.4°C and a low of 9.7°C, with about 28.7 mm of rain over roughly 5.6 rainy days.
- What is the air quality in Sintra in January?
- Sintra has a mean US Air Quality Index of about 43 in January.