Normal weather on 18 August in Unalaska
The weather on 18 August in Unalaska has an average temperature of about 13°C during the day. The maximum temperature can reach up to 15°C, while the minimum temperature can be 11°C.
On average, 4,7 mm of rain falls in Unalaska on 18 August. The wind speed is 4 Beaufort and mainly comes from Southeast.
18 August Averages for Unalaska
 Average temperature | 13°C |
 Highest daytime temperature | 15°C |
| Lowest daytime temperature | 11°C |
 Total rainfall | 4,7 mm |
| Rainy days | 1 day |
Temperature on 18 August in Unalaska per Year
This graph shows the measured temperature on 18 August in Unalaska per year, measured in degrees Celsius, over the past years.
Precipitation on 18 August in Unalaska per Year
This graph shows the total measured precipitation in millimeters on 18 August in Unalaska per year over the past years.
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.