When to go · United States
When to go to Juneau
Photo: Ifly6 · CC BY-SA 4.0 · Wikimedia Commons
When to go
What the averages say
No month in Juneau averages a high of 18°C or more; the warmest, July, averages 12°C.
- Wet months (150 mm of rain or more): July to May.
- Cold months (a mean high under 10°C): September to May.
- The warmest month is July (12°C) and the coolest January (-5°C). The wettest is October (384 mm) and the driest June (148 mm); about 3,155 mm of rain falls in a year.
How these sentences are worded
Each sentence is written from the figures by fixed rules, and says no more than they do. Mild to warm: a mean daily high from 18°C up to 32°C. Hot: 32°C or more. Cool: 10°C up to 18°C. Cold: under 10°C. Dry: under 50 mm of rain in the month; wet: 150 mm or more. Humid: a high of 25°C or more with relative humidity of 70% or more. A month is described as good for going when it is mild to warm and not wet.
The year at a glance
- Mild to warm and dry
- Mild to warm, humid or showery
- Hot
- Cool
- Wet
- Cold
- JanCold
- FebCold
- MarCold
- AprCold
- MayCold
- JunCool
- JulWet
- AugWet
- SeptCold
- OctCold
- NovCold
- DecCold
Month by month
Every month in Juneau
| Month | High | Low | Rain | Humidity | Cloud | Sunlight (kWh/m²/day) | High in Dubai | What it is like |
|---|---|---|---|---|---|---|---|---|
| January | -5°C | -10°C | 339 mm | 95% | 80% | 0.3 | 23°C | Cold |
| February | -5°C | -10°C | 221 mm | 93% | 75% | 1 | 24°C | Cold |
| March | -3°C | -9°C | 209 mm | 91% | 76% | 2.1 | 27°C | Cold |
| April | 1°C | -4°C | 173 mm | 89% | 75% | 3.6 | 31°C | Cold |
| May | 5°C | 2°C | 154 mm | 87% | 74% | 4.7 | 35°C | Cold |
| June | 10°C | 5°C | 148 mm | 87% | 81% | 4.9 | 37°C | Cool |
| July | 12°C | 8°C | 204 mm | 89% | 81% | 4.3 | 39°C | Wet |
| August | 12°C | 8°C | 280 mm | 89% | 79% | 3.4 | 39°C | Wet |
| September | 8°C | 4°C | 369 mm | 90% | 81% | 2.2 | 37°C | Cold |
| October | 3°C | -1°C | 384 mm | 92% | 81% | 1.1 | 34°C | Cold |
| November | -3°C | -7°C | 329 mm | 95% | 79% | 0.5 | 29°C | Cold |
| December | -5°C | -9°C | 345 mm | 96% | 80% | 0.2 | 25°C | Cold |
The Dubai column is Dubai's mean daily high, for comparison.
Modelled averages for an area about 50 km across, not a weather station's record: NASA POWER climatology, 2001–2020. These data were obtained from the NASA Langley Research Center (LaRC) POWER Project funded through the NASA Earth Science/Applied Science Program.
The model's grid cell sits about 638 m higher than the town, so real temperatures there run a little warmer than these.
When to go nearby
When to go nearby
Plan it
Plan a trip to Juneau
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