Climate almanac
Riachos
Santarém, Portugal · 39.44°, -8.51°
What is the weather like in Riachos in December?
In December, Riachos is typically 59°F (15°C) during the day and 46°F (8°C) at night. The month brings about 3.2 in (81 mm) of precipitation in total.
- Average high59°F (15°C)
- Average low46°F (8°C)
- Precipitation3.2 in (81 mm)
- Clear or mostly clear days10
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)