Ketchikan Weather in September

September in Ketchikan brings moderate temperatures, with daytime highs of 14°C (57°F) and nights around 11°C (52°F). It's part of the rainy season, with 367 mm (14 in) of rainfall on average, so an umbrella or poncho is a good idea.

Rainfall in Ketchikan in September

As part of the rainy season, Ketchikan sees around 18 days of rain in September, with an average of 367 mm (14 in). The rain this month falls heavily when it arrives, so waterproofs are worth keeping handy.

Temperature in Ketchikan in September

Daytime temperatures in Ketchikan reach 14°C (57°F) in September, dropping to 11°C (52°F) at night. September is part of the summer season. Even when the weather is stable, mornings and evenings can still feel distinctly cool. Nights cool down to 11°C (52°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.

Sunshine in Ketchikan in September

The area enjoys a moderate level of sunlight, with around 111 hours. It's a good balance between sunny and rainy days.

September in Ketchikan has its charm. However, if you're seeking pleasant, dry and sunny weather, our weather planner can help you explore other destinations in the world.