The temperatures in Sitka in August are usually low and can range between 10°C and 15°C.
You can expect rain for roughly half of the month of August in Sitka. We’re expecting roughly 8 to 15 days of rain, so your rubber boots and umbrella are going to see plenty of use this month if you’re keen on staying dry.
Our weather forecast can give you a great sense of what weather to expect in Sitka in August 2025.
If you’re planning to visit Sitka in the near future, we highly recommend that you review the 14 day weather forecast for Sitka before you arrive.
Temperatures
15° / 10°
Rainy Days
14
Snowy Days
0
Dry Days
17
Rainfall
354
mm
Sun Hours
6.3
Hrs
