Trancoso weather in December
December in Trancoso: warm, soaked, with clean air — fine if you can take 18 rainy days.
#11 of 12 months in Trancoso · #274 of 897 destinations to visit in December · comfort 81/100 (tier A)
Updated June 2026 · climate normals from ERA5 reanalysis
Traveller notes on Trancoso in December
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Trancoso climate normals — December
| Daytime high | 28°C / 82°F | 🌤 warm |
|---|---|---|
| Nighttime low | 23°C / 74°F | |
| Rainfall | 210 mm / 8.3 in | ⛈ soaked |
| Rainy days | 18 days | |
| Humidity | 83% | 💦 very humid |
| Dew point | 22°C / 72°F | |
| Sunshine | 10 h/day | |
| Daylight | 13.1 h | |
| Wind | 15 km/h / 10 mph | |
| Air quality (US AQI) | 27 | 🍃 good |
Monthly averages from ERA5 reanalysis. AQI is the mean US Air Quality Index for the month.
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Trancoso in December — FAQ
- Is December a good time to visit Trancoso?
- December in Trancoso: warm, soaked, with clean air — fine if you can take 18 rainy days. It ranks #11 of 12 months for Trancoso on SeasonMap's comfort score (81/100).
- What is the weather like in Trancoso in December?
- In December, Trancoso averages a daily high of 28°C and a low of 23.4°C, with about 209.8 mm of rain over roughly 18.4 rainy days.
- What is the air quality in Trancoso in December?
- Trancoso has a mean US Air Quality Index of about 27 in December.