Alaska · Nature destination
Juneau is Alaska's capital and the gateway to some of the most spectacular wilderness on earth. Accessible only by sea or air, it sits between steep mountains and the Inside Passage — a dramatic backdrop for whale watching, glacier hikes, and float-plane adventures. The Mendenhall Glacier, just 12 miles from downtown, is one of the most accessible glaciers in the world.
Each month rated on weather and crowds. Look for great weather paired with low crowds for the best overall experience.
| Month | High °F | Low °F | Rain | Crowds | Notes |
|---|---|---|---|---|---|
| Jan | 34 | 26 | 18 | low | Cold, dark, and very wet — off season |
| Feb | 37 | 28 | 16 | low | Still cold but slightly drier |
| Mar | 41 | 31 | 17 |
The best months to visit Juneau by cruise ship are June, July, August. During these months you can expect the driest weather and the most comfortable temperatures for port excursions.
Popular activities include: Mendenhall Glacier hike, Whale watching in Stephens Passage, Mount Roberts Tramway, Tracy Arm Fjord day trips, Fried halibut & local crab.
Juneau is a popular port of call for many major cruise lines. Check the upcoming cruises section above for live departure dates, or search all itineraries that include Juneau.
| Early spring, still cold |
| Apr | 48 | 36 | 16 | low | Shoulder season, snow melting |
| May | 54 | 41 | 16 | moderate | Warming up, wildlife active |
| Jun | 61 | 47 | 14 | high | Best weather — long days and fewer showers |
| Jul | 64 | 50 | 15 | peak | Peak cruise season, warmest month |
| Aug | 63 | 50 | 17 | peak | Great weather, salmon running |
| Sep | 56 | 44 | 19 | moderate | Rain returns, foliage changes |
| Oct | 47 | 37 | 22 | low | Wet and cold — end of cruise season |
| Nov | 39 | 31 | 20 | low | Very wet and cold |
| Dec | 36 | 28 | 18 | low | Dark and cold |
HAL Cruises · Westerdam

Mendenhall Glacier Waterfall and Whale Watching Tour
Although we are the original whale-watching company in Juneau (operating since 1994), we are still small and family-owne...
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Mendenhall Glacier Trolley Tour
Specially designed for guests coming on cruise ships! This is a 3 hour Tour. We meet at the downtown cruise ship dock. E...
We may earn a commission from bookings — at no extra cost to you.