Climate almanac
Altsasu
Navarre, Spain · 42.90°, -2.17°
What is the weather like in Altsasu in September?
In September, Altsasu is typically 72°F (22°C) during the day and 54°F (12°C) at night. The month brings about 3.7 in (94 mm) of precipitation in total.
- Average high72°F (22°C)
- Average low54°F (12°C)
- Precipitation3.7 in (94 mm)
- Clear or mostly clear days6
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)