Current sea water temperature:
+39.4°F
| Minimum sea water temperature in December: | 42.4°F |
| Maximum sea water temperature in December: | 37.9°F |
| Average sea water temperature in December: | 40.5°F |
| more information | |
14 days
forecast
forecast
| Juneau |
monthly
weather
weather
| Juneau |
Sea water temperature for the last 10 days:
| December 21 | 39.4°F | December 16 | 41.4°F |
| December 20 | 39.6°F | December 15 | 41.2°F |
| December 19 | 40.6°F | December 14 | 41.0°F |
| December 18 | 40.5°F | December 13 | 41.0°F |
| December 17 | 41.5°F | December 12 | 41.0°F |
Monthly sea water temperature, °F
When is the warmest sea in Juneau?
Based on the data about daily sea water temperature for the last three years the warmest sea in Juneau was noticed in July, August and September.
Monthly Sea Temperatures in Juneau, °F
Sea water temperature in July, °F
Show year:
2025
2024
2023
The average sea water temperature in July of 2025 was 54.3°F. The highest and lowest sea temperatures during the month were 56.5°F and 52.3°F.
Sea water temperature in August, °F
Show year:
2025
2024
2023
The average sea water temperature in August of 2025 was 56.0°F. The highest and lowest sea temperatures during the month were 57.9°F and 54.3°F.
Sea water temperature in September, °F
Show year:
2025
2024
2023
The average sea water temperature in September of 2025 was 53.4°F. The highest and lowest sea temperatures during the month were 58.3°F and 49.3°F.
current
weather
weather
| Juneau |
weather in
December
December
| Juneau |
Best time for vacation in Juneau
Juneau on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Juneau
Local time: 20:16
December 21, sunday
2100
-11°F
SW
12 mph
12 mph
December 22, monday
0000
-15°F
SW
11 mph
11 mph
0300
-15°F
SW
11 mph
11 mph
0600
-17°F
SW
11 mph
11 mph
0900
-15°F
SW
10 mph
10 mph
1200
-13°F
SW
9 mph
9 mph
1500
-13°F
SW
9 mph
9 mph
1800
-13°F
SW
9 mph
9 mph
