Juneau Climate: Weather by Month and Best Time to Visit
Best months for Juneau: June, July, August, May.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | -3°C | -7°C | 248 mm | 20 | – | – | 2.1 |
| February | -1°C | -6°C | 188 mm | 16 | – | – | 2.4 |
| March | 1°C | -5°C | 182 mm | 18 | – | – | 2.4 |
| April | 5°C | -1°C | 141 mm | 17 | – | – | 3.6 |
| May | 11°C | 3°C | 136 mm | 16 | – | – | 4.9 |
| June | 15°C | 8°C | 135 mm | 18 | – | – | 5.3 |
| July | 16°C | 10°C | 178 mm | 19 | – | – | 5.2 |
| August | 16°C | 10°C | 235 mm | 20 | – | – | 5.2 |
| September | 13°C | 7°C | 332 mm | 21 | – | – | 4.6 |
| October | 6°C | 1°C | 329 mm | 23 | – | – | 3.5 |
| November | 0°C | -4°C | 261 mm | 21 | – | – | 2.2 |
| December | -2°C | -6°C | 276 mm | 21 | – | – | 2.1 |