Current sea water temperature:
+38.7°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 29 | 38.7°F | December 24 | 38.5°F |
| December 28 | 38.7°F | December 23 | 38.8°F |
| December 27 | 38.3°F | December 22 | 38.8°F |
| December 26 | 37.9°F | December 21 | 39.4°F |
| December 25 | 38.1°F | December 20 | 39.6°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
January
January
| Juneau |
Best time for vacation in Juneau
Juneau on a weather map
Places in USA:
Name
°F
24 Hours Forecast
Juneau
Local time: 11:59
December 29, monday
1200
12°F
SW
6 mph
6 mph
1500
12°F
SW
6 mph
6 mph
1800
18°F
SW
6 mph
6 mph
2100
18°F
SW
6 mph
6 mph
December 30, tuesday
0000
14°F
SW
6 mph
6 mph
0300
16°F
SW
7 mph
7 mph
0600
14°F
SW
6 mph
6 mph
0900
14°F
SW
6 mph
6 mph
