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Ketchikan weather in August 2025
Expect 17°C daytime maximum temperatures in the shade with on average 5 hours of sunshine per day in Ketchikan in August. Check more long-term weather averages for Ketchikan in August before you book your next holiday to Alaska in 2025/2026.
- 17°C max day temperature
17 - 5 hours of sunshine per day
- 15 days with some rainfall
15 - 9°C min night temperature
9 - 15 hours of daylight per day
15 - No heat & humidity
0 - 222 mm of monthly rainfall
222 - 5 (Moderate) UV index
5 - 14°C sea temperature
14
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Recommended for Alaska
The August 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.
Metric (°C / mm) | Imperial (°F / inches)
More about the USA
How warm is it in Ketchikan in August?
Daytime temperatures usually reach 17°C in Ketchikan in August, falling to 9°C at night.
How sunny is it in Ketchikan in August?
There are normally 5 hours of bright sunshine each day in Ketchikan in August - that's 32% of daylight hours.
How warm is the sea around Ketchikan in August?
The average sea temperature around Ketchikan in August is 14°C.
Does it rain in Ketchikan in August?
There are usually 15 days with some rain in Ketchikan in August and the average monthly rainfall is 222mm.
Ketchikan August sunrise & sunset times
Browse the sunrise and sunset times for Ketchikan in August 2025. Select a month to view Ketchikan sunrise and sunset times for the next 12 months.
JanFebMarAprMayJunJulAugSepOctNovDec
| Date | Sunrise times | Sunset times |
|---|---|---|
| Friday, 1st August 2025 | 03:55 | 19:50 |
| Saturday, 16th August 2025 | 04:23 | 19:17 |
| Sunday, 31st August 2025 | 04:51 | 18:41 |
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