Alaska (Juneau) · January
Low seasonUSA · North America
Climate Overview
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Ø day, range from coolest to warmest dayØ dayrange | 2° (36°)-8– (18–)7 (45) | 2° (36°)-6– (21–)8 (46) | 4° (39°)-3– (27–)9 (48) | 9° (48°)3– (37–)15 (59) | 14° (57°)7– (45–)22 (72) | 16° (61°)10– (50–)25 (77) | 17° (63°)12– (54–)24 (75) | 17° (63°)11– (52–)23 (73) | 13° (55°)9– (48–)18 (64) | 9° (48°)4– (39–)13 (55) | 4° (39°)-3– (27–)9 (48) | 2° (36°)-6– (21–)7 (45) |
Ø night, range from coldest to warmest nightØ nightrange | -2° (28°)-13– (9–)4 (39) | -2° (28°)-12– (10–)3 (37) | -1° (30°)-9– (16–)3 (37) | 2° (36°)-3– (27–)6 (43) | 7° (45°)1– (34–)10 (50) | 10° (50°)5– (41–)13 (55) | 12° (54°)8– (46–)13 (55) | 11° (52°)7– (45–)14 (57) | 9° (48°)3– (37–)12 (54) | 5° (41°)-2– (28–)9 (48) | 0° (32°)-8– (18–)5 (41) | -1° (30°)-10– (14–)4 (39) |
☀️Sunshine | 1h UV 1 | 3h UV 2 | 4h UV 4 | 6h UV 5 | 8h UV 6 | 6h UV 6 | 5h UV 5 | 5h UV 4 | 2h UV 3 | 3h UV 2 | 3h UV 2 | 2h UV 1 |
🌊Water Temp | 6° (43°) | 5° (41°) | 5° (41°) | 6° (43°) | 8° (46°) | 11° (52°) | 13° (55°) | 14° (57°) | 13° (55°) | 11° (52°) | 8° (46°) | 7° (45°) |
🌧Rain Days | 16d176mm (6.9") | 11d108mm (4.2") | 11d90mm (3.5") | 11d94mm (3.7") | 10d96mm (3.8") | 10d103mm (4.0") | 13d134mm (5.3") | 15d175mm (6.9") | 18d229mm (9.0") | 17d219mm (8.6") | 16d165mm (6.5") | 14d155mm (6.1") |
Best travel time current monthØ = average · small figures = range: coolest–warmest day / coldest–warmest nightClimate data 2005–2025 · Source: ERA5 + station data
Deep off-season — very low prices, but weather conditions are suboptimal.
January is the coldest winter month in Alaska (Juneau) — with highs of only 2°C (36°F), it holds little appeal for sun-seekers. Better travel in May, June, July, August, and September.
Temperatures reach a maximum of 2°C (36°F) during the day and drop to -2°C (28°F) at night — warm layers recommended. Peaks reach around 7°C (45°F), the coldest nights around -13°C (9°F) — frost does occur. With 1 sunshine hour per day and 16 rain days (176 mm (6.9 in)), this is one of the cloudier months. At 6°C (43°F), the water is still quite cool in January — a wetsuit may be useful.
An umbrella or waterproof jacket is essential. On rainy days, plan indoor activities like museums and markets.
The quiet season: the cruise ships are gone, days are short and the sky is mostly grey. Snow falls in the mountains, while in town wet weather alternates with frost. Visitors now see the Alaska of the locals, with winter sports, a chance of northern lights on clear nights and empty streets.
Packing list for Alaska (Juneau) in January
- Winter coat
- Thermal clothing and warm layers
- Hat, scarf and gloves
- Warm, waterproof shoes
- Rain jacket and waterproof shoes
- Travel first-aid kit
Frequently Asked Questions
- Is January a good time to visit Alaska (Juneau)?
- No — January is not among the recommended months for Alaska (Juneau) (Score: 8/100). Climate conditions are unfavourable. For better conditions, consider May, June, July, August, and September.
- How warm is it in Alaska (Juneau) in January?
- In January, Alaska (Juneau) sees daily highs of 2°C (36°F). Nights cool to -2°C (28°F), with a daily average of 0°C (32°F). Peaks reach around 7°C (45°F), the coldest nights around -13°C (9°F) — frost does occur.
- How much rain falls in Alaska (Juneau) in January?
- In January, Alaska (Juneau) receives an average of 176 mm (6.9 in) of rain over 16 rain days. With frequent rain days, waterproof clothing is recommended.
- How many sunshine hours does Alaska (Juneau) get in January?
- Alaska (Juneau) averages 1 sunshine hour per day in January — below the annual average.
- How warm is the water in Alaska (Juneau) in January?
- Water temperature in Alaska (Juneau) in January averages 6°C (43°F) — still quite cool — a wetsuit may be useful.
