Best time to visit Juneau

• “The summer season runs from May through September” alaskatraveladventures.com
• “The best time to visit Alaska is from May until the end of September.” responsiblevacation.com
• “the best time to visit Mendenhall Glacier and many of Juneau's other top attractions is between May – October” silverbowinn.com

4 of the 10 travel guides we read name these months.

1. January33°F / 24°F · 20 rainy daysChecking fares…January is typically the snowiest month, averaging 24.5 inches.Taku windstorms are most frequent in January and February, the coldest stretch.
2. February36°F / 25°F · 17 rainy daysChecking fares…The drier season starts in early February.Fairbanks hosts the World Ice Art Championships from mid-February to mid-March (Alaska, not Juneau).
3. March39°F / 27°F · 18 rainy daysChecking fares…Spring (March to May) is historically the driest and least cloudy season.Daylight saving time starts in mid-March.
4. April49°F / 33°F · 17 rainy daysChecking fares…October through April is off-peak: heavy snow, short days and few excursion companies open.Spring dryness makes it the most likely time for wildfires in the borough.
5. Best timeMay58°F / 40°F · 16 rainy daysChecking fares…May is shoulder season: more excursion companies open, shops extend hours, streets are not yet packed.Humpback whales return to the waters around Juneau in May and stay through September.May is good for wildflowers and mosquito-free days (Alaska overall).
6. Best timeJune62°F / 47°F · 17 rainy daysChecking fares…June and July have the longest and most dramatic light.Juneau hosts the four-day Celebration of Southeast Alaska Native peoples in June.The longest day, June 21, has about 18 hours of daylight.
7. Best timeJuly64°F / 50°F · 19 rainy daysChecking fares…July is the warmest month, with an average high of 63.8F.From July to September, Steep Creek Trail has spawning sockeye salmon and the occasional black bear.Mid-June to end of July is notorious for mosquitoes (Alaska overall).
8. Best timeAugust63°F / 49°F · 19 rainy daysChecking fares…Night frost starts killing mosquitoes off by August; northern lights can appear from late August.The wetter season starts in mid-August.July and August are the busiest cruise months; early June and late August are quieter.
9. Best timeSeptember56°F / 44°F · 22 rainy daysChecking fares…September is shoulder season, with more rain than June to August, though waterproof gear keeps hiking comfortable.Fall (September to November) is the wettest season in Southeast Alaska.
10. October47°F / 37°F · 23 rainy daysChecking fares…October through April is off-peak, with significant snowfall and shorter days.The snowless period lasts from May to October.
11. November38°F / 29°F · 21 rainy daysChecking fares…First sea-level snow usually falls in early November.Daylight saving time ends in early November.
12. December35°F / 26°F · 21 rainy daysChecking fares…The shortest day, December 21, has about 6 hours of daylight.Winter has about 5 hours of daylight and many tours shut down.Eaglecrest Ski Area, a short drive from downtown, offers skiing in winter.

Weather: Juneau averages from NOAA (1961 to 1990 averages), as listed in its climate table on Wikipedia.

What to be careful of in Alaska?

Mosquitoes from mid-June to the end of July, and wet fall storms in Southeast Alaska.

How many days do you need to see Juneau, Alaska?

One tour operator says whale watching, Mendenhall Glacier and a salmon bake fit in about 6.25 hours.

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