Climate almanac
Riachos
Santarém, Portugal · 39.44°, -8.51°
What is the weather like in Riachos in September?
In September, Riachos is typically 82°F (28°C) during the day and 59°F (15°C) at night. The month brings about 1.3 in (33 mm) of precipitation in total.
- Average high82°F (28°C)
- Average low59°F (15°C)
- Precipitation1.3 in (33 mm)
- Clear or mostly clear days16
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)