World Resorts USA Juneau Weather

Juneau sea water temperature

Current sea water temperature:
+54.1°F
Minimum sea water temperature in July: 59.9°F
Maximum sea water temperature in July: 52.2°F
Average sea water temperature in July: 56.0°F

Sea water temperature for the last 10 days:

July 21 54.1°F July 16 54.1°F
July 20 53.4°F July 15 53.4°F
July 19 54.1°F July 14 53.6°F
July 18 53.4°F July 13 53.2°F
July 17 53.2°F July 12 53.8°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 August, July and September.

Monthly Sea Temperatures in Juneau, °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 July, °F

Show year:
2026
2025
2024

The average sea water temperature in July of 2026 was 53.6°F. The highest and lowest sea temperatures during the month were 54.5°F and 52.2°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.

Best time for vacation in Juneau

Sunniest months:
February 5 days
March 5 days
April 5 days
Warmest months:
July 57.3 °F
August 57.2 °F
June 53.9 °F
Warmest sea temp:
August 56.1 °F
July 55.9 °F
September 51.8 °F
Coldest months:
December 26.5 °F
January 28.7 °F
February 30.3 °F
Rainiest months:
October 12 days
September 10 days
January 9 days
Windiest months:
November 7.0 mph
December 7.0 mph
January 6.9 mph

Juneau on a weather map

Juneau
+43°F
S 2 mph
Feels like: +43°F
Precip.: 19%
Places in USA:
Name
°F
+73°F
+81°F
+77°F
+86°F
+66°F
+86°F
+72°F
+84°F
+75°F
+68°F
+55°F
+68°F
+84°F
+79°F
+75°F
24 Hours Forecast
Juneau
Local time: 05:43
July 21, tuesday
0600
43°F
S
2 mph
0900
54°F
E
2 mph
1200
57°F
NE
3 mph
1500
48°F
NE
2 mph
1800
52°F
NE
4 mph
2100
45°F
E
3 mph
July 22, wednesday
0000
41°F
N
2 mph
0300
43°F
NE
2 mph
Units of measurement: °C / °F