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Alaska weather in August

Are you planning a trip to Alaska in August and wondering what kind of weather to expect? This page has all the details you need.

What is the weather like in Alaska in August?

Alaska is a region in the United States of America. The weather in Alaska in August can be quite varied, with temperatures that range from cold to pleasant and precipitation levels ranging from moderate to heavy. August falls during the summer season.

The average highest temperatures fluctuate between cold in Denali National Park and Preserve at 6°C to pleasant in North Pole at 20°C. Nighttime temperatures generally drop to 10°C in North Pole and 0°C in Denali National Park and Preserve.

In August, precipitation varies across different areas. From moderate rainfall in Point Barrow with an average of 39 mm to heavy rainfall in Glacier Bay National Park and Preserve with 317 mm. The days are mostly sunny, with an average total of around 204 hours of sunshine in Anchorage. The sunlight during this month doesn't just make the days brighter, it also seems to make everyone a bit more cheerful.

To learn more about the conditions in specific areas of Alaska in August, check out the map below. For more details on the yearly weather, visit our Alaska climate page.

Where to go in Alaska in August

Find the average weather conditions in August for the most popular destinations in Alaska on the map below. Click on a destination dot for more detailed information.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

Popular destinations in Alaska

What is the weather like in August for the 5 most popular destinations in Alaska?

Average weather in Anchorage

In August Anchorage generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 12°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Anchorage
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
18°C 
12°C 
250 hours 
80 mm 
12 days 
17°C 
12°C 
204 hours 
111 mm 
14 days 
13°C 
8°C 
160 hours 
131 mm 
14 days 
poor 
Climate in Anchorage

Average weather in Fairbanks

In August Fairbanks generally has pleasant temperatures with maximum daytime temperatures around 19°C, minimum nighttime temperatures around 10°C and moderate monthly rainfall. So on average the conditions are pleasant that month.

Fairbanks
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
23°C 
13°C 
274 hours 
75 mm 
13 days 
19°C 
10°C 
166 hours 
73 mm 
13 days 
13°C 
4°C 
122 hours 
49 mm 
10 days 
Climate in Fairbanks

Average weather in Juneau

In August Juneau generally has moderate temperatures with maximum daytime temperatures around 14°C, minimum nighttime temperatures around 8°C and heavy monthly rainfall. So on average the conditions are poor that month.

Juneau
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
sun hoursMonthly sun hours sun hoursSun hours
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
14°C 
8°C 
163 hours 
181 mm 
15 days 
poor 
14°C 
8°C 
161 hours 
249 mm 
16 days 
poor 
11°C 
5°C 
112 hours 
368 mm 
19 days 
poor 
Climate in Juneau

Average weather in Kenai

In August Kenai generally has moderate temperatures with maximum daytime temperatures around 17°C, minimum nighttime temperatures around 12°C and high monthly rainfall. So on average the conditions are unpleasant that month.

Kenai
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
17°C 
12°C 
73 mm 
12 days 
17°C 
12°C 
106 mm 
14 days 
14°C 
9°C 
140 mm 
15 days 
Climate in Kenai

Average weather in Soldotna

In August Soldotna generally has pleasant temperatures with maximum daytime temperatures around 18°C, minimum nighttime temperatures around 11°C and high monthly rainfall. So on average the conditions are tolerable that month.

Soldotna
minimum temparatureMax temperature minimum temparatureMax temp
maximum temparatureMin temperature maximum temparatureMin temp
precipitationMonthly rainfall precipitationRainfall
rain daysMonthly rainy days rain daysRainy days
conditionsWeather conditions conditionsWeather
<<   July July
<<  
19°C 
12°C 
78 mm 
12 days 
18°C 
11°C 
104 mm 
14 days 
14°C 
8°C 
130 mm 
15 days 
Climate in Soldotna

Is your destination not in the list? Have a look at other destinations in Alaska, in the United States of America.

Is August the best time to visit Alaska?

Given the typically unpleasant weather conditions in Anchorage, August may not be the ideal time to visit Alaska.

Generally speaking, the best visiting conditions can be found in July offering mostly pleasant weather in Anchorage. The weather in January, February, March, April, September, October, November and December, on the other hand, tends to be poor.

Interested in more climate information?

We have much more information about the climate in Alaska. Interested in the weather conditions in a specific month? Select the month below.

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  • Weather and climate has detailed information for every country in the world. Are you going to the United States of America? Get detailed historical weather averages for many cities in the United States of America.

    Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal climate conditions. Find out where to go with our weather planner.