Ketchikan weather in September 2026

Q: How warm is it in Ketchikan in September?

Daytime temperatures usually reach 13°C in Ketchikan in September, falling to 5°C at night.

Q: How sunny is it in Ketchikan in September?

There are normally 5 hours of bright sunshine each day in Ketchikan in September - that's 41% of daylight hours.

Q: How warm is the sea around Ketchikan in September?

The average sea temperature around Ketchikan in September is 12°C.

Q: Does it rain in Ketchikan in September?

There are usually 14 days with some rain in Ketchikan in September and the average monthly rainfall is 68mm.

Expect daytime maximum temperatures of 14°C in Ketchikan, Alaska in September based on long-term weather averages. There are 3 hours of sunshine per day on average with 18 days with some rainfall and typically 279 mm of rainfall in the month.

14
14°C max day temperature
3
3 hours of sunshine per day
18
18 days with some rainfall
7
7°C min night temperature
13
13 hours of daylight per day
0
No heat & humidity
279
279 mm of monthly rainfall
3
3 (Moderate) UV index
12
12°C sea temperature

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The September weather guide for Alaska (Ketchikan) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

More about the USA

How warm is it in Ketchikan in September?

Daytime temperatures usually reach 13°C in Ketchikan in September, falling to 5°C at night.

How sunny is it in Ketchikan in September?

There are normally 5 hours of bright sunshine each day in Ketchikan in September - that's 41% of daylight hours.

How warm is the sea around Ketchikan in September?

The average sea temperature around Ketchikan in September is 12°C.

Does it rain in Ketchikan in September?

There are usually 14 days with some rain in Ketchikan in September and the average monthly rainfall is 68mm.

Ketchikan September sunrise & sunset times

Browse the sunrise and sunset times for Ketchikan in September 2026. Select a month to view Ketchikan sunrise and sunset times for the next 12 months.

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