Current Weather and Forecast in Juneau, AK
Alaska, United States 🇺🇸
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About the weather in Juneau
Juneau has an oceanic climate. July is the warmest month, with average highs of 64°, and February the coldest, when nights fall to around 24°. September brings the most rain, on about 21 days, while May is the sunniest, with 9.4 hours of sunshine a day. Over a whole year it rains on roughly 232 days.
Juneau climate guide: monthly averages, seasons and the best time to visit
Common questions
Does it snow in Juneau?
Yes - about 98 days a year carry measurable snowfall, concentrated October through May.
Is Juneau cold in winter?
February nights average 24°F (-5°C). Frost and occasional ice are part of the season.
What is the rainiest month in Juneau?
September, at 15.5 inches (393 mm) over about 21 days. June is the driest month, at 6.6 inches (166 mm).
What is the hottest month in Juneau?
July, averaging 64°F (18°C) by day and 54°F (12°C) overnight. The hottest single day in our 2015-2024 record for this location reached 84°F (29°C).
Which month is coolest in Juneau?
February, with highs of 31°F (0°C) and lows near 24°F (-5°C). The coldest day in the 2015-2024 record fell to -9°F (-23°C).
What is the best time to visit Juneau?
Aim for May to August if you get the choice: these are the warmest and brightest weeks of the year, and highs average 60°F (16°C) against roughly 18 wet days a month. For the same question asked the other way round, see where else is warm in May.