Climate almanac
Rio Maior
Santarém, Portugal · 39.34°, -8.94°
What is the weather like in Rio Maior in December?
In December, Rio Maior is typically 60°F (15°C) during the day and 48°F (9°C) at night. The month brings about 3.0 in (76 mm) of precipitation in total.
- Average high60°F (15°C)
- Average low48°F (9°C)
- Precipitation3.0 in (76 mm)
- Clear or mostly clear days10
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)