SeasonMapJuneau weather by month
United States
The best time to visit Juneau is June to August — 83/100 in June, 19°C and 17 rainy days. The best season is summer, June to August (79/100 on average).
The worst month is December at 23/100 — freezing, soaked, clean air. See December →
Updated September 2026 · climate normals from ERA5 reanalysis
Planning the wider trip? Best time to visit United States →
Juneau, month by month
Comfort score out of 100 for the kind of trip Juneau is best for, the average high, rainy days and hours of sun a day from the climate normals, and how busy it tends to be.
| Month | Score | Tier | High | Rain | Sun | Crowds | On |
|---|---|---|---|---|---|---|---|
| JanJanuary | 26 | F | 1°C | 19 d | 2 h | Busy | 1 |
| FebFebruary | 37 | F | 1°C | 15 d | 4 h | Shoulder | 1 |
| MarMarch | 50 | D | 4°C | 15 d | 6 h | Busy | 1 |
| AprApril | 63 | C | 10°C | 18 d | 8 h | Busy | 3 |
| MayMay | 71 | B | 15°C | 15 d | 9 h | Busy | 2 |
| JunJune | 83 | A | 19°C | 17 d | 10 h | Peak | 2 |
| JulJuly | 80 | A | 20°C | 16 d | 9 h | Peak | 3 |
| AugAugust | 73 | B | 19°C | 18 d | 8 h | Peak | 3 |
| SepSeptember | 59 | D | 15°C | 21 d | 6 h | Peak | 3 |
| OctOctober | 45 | F | 9°C | 21 d | 4 h | Shoulder | — |
| NovNovember | 31 | F | 3°C | 20 d | 2 h | Busy | — |
| DecDecember | 23 | F | 1°C | 19 d | 1 h | Busy | 1 |
What's on in Juneau through the year
Festivals, natural spectacles, holidays and the seasons to watch out for — curated and sourced. The month pages carry the detail.
Crowds in Juneau in June
How busy the place itself is — school and mass holidays, the months an editor tagged, and how sought-after the weather makes them. Never part of the comfort score.
Peak crowdsCruise season, Summer break in United States, school holidays in 2 of the markets that fill it(estimated)
Peak crowdsBusyShoulder seasonQuiet