Juneau Weather: August
 |
Average Day Temperature: | 58.0°F |
|
Average Night Temperature: | 51.7°F |
|
Sea Water Temperature: | 56.8°F |
|
Number of Sunny Days: | 5 days |
| Sunshine Hours: | 14.1 - 16.5 hours | |
|
Number of Rainy Days: | 7 days |
| Precipitation Totals: | 3.7 in | |
| detailed information | ||
forecast
| Juneau |
Temperature
| Juneau |
Air Temperature in August, °F
The highest day temperature in August 2025 was 66°F. The lowest night temperature was 42°F. The average values for day and night temperatures during August were 56.3°F и 46.6°F respectivly.
Juneau Water Sea Temperature in August, °F
The average sea surface temperature in August 2025 for Juneau was 56.7°F. The maximum and minimum values were 54.8°F and 58.8°F respectively.
Most of the days in August are gloomy but you can also expect sunny days.
Precipitation Totals in August, in
Precipitation total in August for Juneau is 3.7 in.
The average wind speed in August is 4.1 mph. It makes August one of the most windless months of the year for Juneau.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Juneau in August is 4.9 hours.
Juneau on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+20 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0300 |  |
30°F | NW 2 mph |
| 0600 | |
30°F | NW 2 mph |
| 0900 |  |
30°F | W 2 mph |
| 1200 | |
30°F | SW 1 mph |
| 1500 | |
30°F | N 1 mph |
| 1800 | |
32°F | N 2 mph |
| 2100 | |
32°F | NW 4 mph |
| 0000 | |
28°F | NW 5 mph |