Climate almanac
Ketchikan
Alaska, United States · 55.34°, -131.65°
What is the weather like in Ketchikan in September?
In September, Ketchikan is typically 57°F (14°C) during the day and 52°F (11°C) at night. The month brings about 13 in (321 mm) of precipitation in total.
- Average high57°F (14°C)
- Average low52°F (11°C)
- Precipitation13 in (321 mm)
- Clear or mostly clear days4
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)