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Normal weather for Sitka in August

It's cool to moderate in August in Sitka with an average temperature of 17°C. Temperatures this month range from a low of 15°C to a high of 20°C. At night, you can expect temperatures between 12°C and 15°C.

In August, there is an average of 429 mm of precipitation, spread over 25 days. The wind speed is around 2 Bft, mostly coming from the Southwest.

Sitka in August

New York
Temperature Average Temperature
17°C 30°C
Sun High Temp
20°C 31°C
Sun Low Temp
15°C 28°C
Rain Total Precipitation
429 mm 79 mm
Rain Rainy Days
25 days 13 days

Start of August

The month of August starts in Sitka with mild temps, averaging around 19°C during the day and nights around 15°C. There are plenty of days with a good chance of precipitation.

With the temperature difference between day and night, it’s smart to wear layers. During the day, a shirt, maybe a light sweater, and thin pants will do. In the evening and morning, choose a light jacket, sweater or hoodie, and long pants.

Mid August

By mid-August, daytime temps drop to around 17°C, with nights around 13°C. There’s a high chance of precipitation during this time. Choose a light jacket, sweater or hoodie, and long pants.

End of August

By the end of August, the average daytime temperature in Sitka is around 17°C, while nighttime temps are about 13°C. There’s a significant chance of many days with precipitation. Choose a light jacket, sweater or hoodie, and long pants.

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UV index

The UV index is a maximum of 6 this month. That's a moderate to high value on the intensity scale of 1 to 11. Unprotected skin can burn within 15-25 minutes.

Is August a good time to visit Sitka?

Looking for sun and warm weather? August isn’t a good month to be in Sitka. The temperatures are too low for a warm stay this month.

Temperature records for Sitka in August

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Daily Temperature in August in Sitka

This chart shows the average daily high and low temperatures in August for Sitka, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.

Daily Temperature in August in Sitka

Daily Precipitation in August in Sitka

The chart below shows the average daily precipitation in August for Sitka, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.

A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for August, you can expect about 25 days of precipitation in Sitka.

Daily Precipitation in August in Sitka

Daily UV Index in August in Sitka

This chart shows the average daily UV index in August in Sitka, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.

Daily UV Index in August in Sitka

Temperature in August in Sitka Over the Years

This chart shows the average temperature in August in Sitka, measured in degrees Celsius, over the past few years.

Temperature in August in Sitka Over the Years

Total Precipitation in August in Sitka Over the Years

This chart shows the average precipitation in August in Sitka, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.

Precipitation in August in Sitka Over the Years

Daily Climate in August for Sitka

Click on any day in August to get detailed info about the usual weather on that day in Sitka. Check out the historical temperatures and precipitation over the past 10 years on this day.

Weather experiences in August in Sitka

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Average Weather in Sitka by Month

Click on a month below to see detailed weather info for Sitka. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.


Or check out the climate of Sitka for all months at once

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