August · Alaska
Best time to visit Sitka in August Weather, crowds & prices
Weather in Sitka in August
Average temperature 14°C, 176 mm of rain, about 10 days with 6+ hours of sunshine and 90% humidity — based on the five most recent complete years of ERA5 data (2021–2025).
August score
5.5/10
Ranked #3 of 12 months
- Avg temp
- 14°C
- Rainfall
- 176 mm
- Humidity
- 90%
- Days with 6h+ sun
- 10
- Crowd Density
- Peak Tourist Rush
- Average Expenses
- $$$ · Peak Season Rates ($$$)
August in Sitka scores 5.5/10 for sightseeing and cultural travel - one of the top 12-month picks (#3). Expect around 14°C, 176 mm of rain, and roughly 10 days with 6+ hours of sunshine this month.
Sitka blends Russian-era cathedral domes with rainforest islands and whale-rich waters on the outer coast.
August in Sitka: mixed conditions, plan around the weather
August averages 14°C (57°F), the range most people find easiest for walking a city all day without either overheating or losing daylight to weather.
At 176 mm this is a genuinely wet month: about 10 days with 6+ hours of sunshine in total, and outdoor plans need an indoor fallback.
It scores 5.5/10 here, 3rd of 12 months, against 6.7/10 in the destination's best month.
Pack layers you can shed by midday plus one warm layer for the evening, a proper rain shell rather than an umbrella.
Figure on peak pricing, with this is one of the busiest months here. You are paying the year's highest rates for the year's best conditions — book early or shift a few weeks either side.
Frequently asked
- What is the weather like in Sitka in August?
- In August, Sitka averages 14°C, 176 mm of rain, and about 10 days with 6+ hours of sunshine. Its climate-comfort score is 5.5/10.
- Is August a good time to visit Sitka?
- August earns a 5.5/10 climate-comfort score. Use the year-round chart to weigh the weather against your budget and crowd preferences.
- How much does it rain in Sitka in August?
- Expect about 176 mm of rain in August. Average humidity is 90% and there are about 10 days with 6+ hours of sunshine.
Curated in Sitka
Tickets & experiences
Things to do in Sitka
Sitka, Alaska. Live activities and tours from GetYourGuide, matched to this destination.