Average climate of Unalaska
The climate of Unalaska has an average yearly temperature of 9°C. Throughout the year, the average monthly temperature can drop to 3°C and rise to 15°C.
Annually, about 1376 mm of rain falls. This gives a good overview of how much rain to expect in Unalaska. Additionally, about 229 cm of snow falls each year.
The best time to visit Unalaska is August. Although it often rains during this period, it rains less than in other months. The temperatures are also good for visiting Unalaska.
3 to 15°C
1376 mm
229 cm
Table of contents
- Average yearly temperature: 9°C
- Highest temperature: 15°C in August
- Lowest temperature: 3°C in January
- Precipitation: 1376 mm per year, averaging 115 mm per month
- Driest months: 33 mm in June, 36 mm in July and 65 mm in August
- Wettest months: 242 mm in October, 208 mm in December and 206 mm in November
- Snowfall: 229 cm per year
Climate table Unalaska
The climate table for Unalaska shows the average temperatures, precipitation, snowfall, and UV index per month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daytime temperature (°C) | 3 | 4 | 5 | 6 | 9 | 11 | 14 | 15 | 13 | 9 | 7 | 5 |
| Nighttime temperature (°C) | 0 | 1 | 1 | 2 | 5 | 8 | 10 | 11 | 9 | 6 | 3 | 2 |
| Precipitation (mm) | 78 | 152 | 86 | 105 | 70 | 33 | 36 | 65 | 95 | 242 | 206 | 208 |
| Snowfall (cm) | 42 | 43 | 41 | 29 | 2,7 | 0 | 0 | 0 | 0 | 2,5 | 30 | 40 |
| UV Index | 2 | 2 | 3 | 5 | 6 | 5 | 3 | 3 | 4 | 3 | 2 | 1 |
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Temperature per month in Unalaska
This graph shows the average high temperatures in degrees Celsius for each month in Unalaska, Alaska
Precipitation per month in Unalaska
This graph shows the average monthly precipitation in millimeters in Unalaska, Alaska.
Snowfall per month in Unalaska
This graph shows the average snowfall in centimeters per month in Unalaska, Alaska.
UV index per month in Unalaska
This graph shows the average UV index per month in Unalaska, Alaska.
Yearly temperature in Unalaska
This graph shows the average yearly temperature in Unalaska, Alaska, measured in degrees Celsius.
Yearly total precipitation in Unalaska
This graph shows the average yearly precipitation in millimeters in Unalaska, Alaska.
Yearly snowfall in Unalaska
This graph shows the average yearly snowfall in Unalaska, Alaska, measured in centimeters.
Weather experiences in Unalaska
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Average weather in Unalaska per month
Click on a month below to see in detail how the weather typically is in Unalaska and what to expect. Based on the historical weather data of Unalaska, you can view the average temperature, precipitation, wind, and UV index for each day of the month.