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Ideal weather days in Juneau

The best time to visit Juneau for warm, dry weather is July and August, with 14 to 16 such days a month.

How many days here suit you?

Set your ideal day. Each day measured at Juneau's weather station in 2023–2025 is checked against it.

18–33°C
≤ 1 mm
≤ 20 km/h
Any sky
45ideal days a year12% of the year

They're most common in July and August.

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Your ideal days in Juneau, month by month

  1. 0Jan: 0 of 31 days
  2. 0Feb: 0 of 28 days
  3. 0Mar: 0 of 31 days
  4. 0Apr: 0 of 30 days
  5. 3May: 3 of 31 days
  6. 12Jun: 12 of 30 days
  7. 16Jul: 16 of 31 days
  8. 14Aug: 14 of 31 days
  9. 0Sep: 0 of 30 days
  10. 0Oct: 0 of 31 days
  11. 0Nov: 0 of 30 days
  12. 0Dec: 0 of 31 days

Why the other days don't count

  • Too cold304
  • Too wet200
  • Too windy60
  • Too hot0

A day can fail more than one test.

Warm and dry, beach and mild days

With the Warm & dry preset (a high of 18–33 °C, no more than 1 mm of rain, wind under 20 km/h), Juneau averaged 45 days a year in 2023–2025. Every number here is counted from real measured days in the United States, not from climate averages.

Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are rare: no month averaged more than 2. Mild, still days (16–26 °C, light wind) are most common in July and August (up to 14 a month, 43 a year).

What spoils the other days

Most of the days that don't count are too cold (a high under 18 °C): 304 a year, mostly in September to May. Another 200 are wet (more than 1 mm of rain), mostly in April to May and August to January. A day can fail more than one test.

Juneau weather, month by month

MonthTypical highRain daysWindy daysClear daysWarm & dry days
January3 °C 37 °F22820 of 31
February2 °C 36 °F14450 of 28
March6 °C 43 °F13780 of 31
April10 °C 49 °F18640 of 30
May14 °C 56 °F20423 of 31
June17 °C 63 °F142112 of 30
July20 °C 67 °F141316 of 31
August20 °C 68 °F172614 of 31
September14 °C 57 °F24500 of 30
October10 °C 50 °F22730 of 31
November6 °C 42 °F20740 of 30
December6 °C 42 °F23820 of 31
Year220603945 of 365

Typical high is the median daily maximum. A rain day has 1 mm or more; a windy day a mean wind above 20 km/h; a clear day a daytime cloud cover of 2/8 or less on average (9:00–17:00). Days are averaged over 2023–2025 and scaled to the length of each month.

Year by year

Questions

When is the best time to visit Juneau for good weather?

The best time to visit Juneau for warm, dry weather is July and August, with 14 to 16 such days a month. Beach days (a high of 26–35 °C, almost no rain, mostly sunny) are rare: no month averaged more than 2. Counted from measured days at Juneau Airport station, 2023–2025.

Does it rain a lot in Juneau?

On average 220 days a year had 1 mm of rain or more in 2023–2025. The wettest month was September (24 rain days), the driest March (13).

How many sunny days does Juneau get a year?

About 39 days a year had mostly clear skies (daytime cloud cover of 2/8 or less on average, 9:00–17:00), most of them in March (8).

How warm does Juneau get?

The median daily high ranged from 2 °C (36 °F) in February to 20 °C (68 °F) in August.

Nearby

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Where is the best climate in the United States?

Open Juneau on the map Set your own temperature, rain and wind limits.

Source: Juneau Airport weather station (70381025309), 10 km from the centre of Juneau, 6 m above sea level. Daily records from NOAA's Global Surface Summary of the Day, 2023–2025; 89% of days have a complete record. A single station may not represent every part of a city, and three years is a short record.