World Resorts USA Ketchikan Weather

Ketchikan sea water temperature

Current sea water temperature:
+42.3°F
Minimum sea water temperature in February: 44.1°F
Maximum sea water temperature in February: 40.8°F
Average sea water temperature in February: 42.0°F

Sea water temperature for the last 10 days:

February 5 42.3°F January 31 41.9°F
February 4 41.9°F January 30 41.7°F
February 3 42.1°F January 29 41.7°F
February 2 42.3°F January 28 42.3°F
February 1 41.4°F January 27 42.1°F

When is the warmest sea in Ketchikan?

Based on the data about daily sea water temperature for the last three years the warmest sea in Ketchikan was noticed in August, July and September.

Monthly Sea Temperatures in Ketchikan, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 59.5°F. The highest and lowest sea temperatures during the month were 61.5°F and 57.7°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 57.5°F. The highest and lowest sea temperatures during the month were 61.3°F and 55.4°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 57.1°F. The highest and lowest sea temperatures during the month were 63.1°F and 52.9°F.

Best time for vacation in Ketchikan

Sunniest months:
August 9 days
July 7 days
March 6 days
Warmest months:
August 60.5 °F
July 59.4 °F
September 55.7 °F
Warmest sea temp:
August 60.1 °F
July 59.1 °F
September 56.0 °F
Coldest months:
December 36.1 °F
January 36.3 °F
February 36.8 °F
Rainiest months:
November 10 days
January 9 days
October 9 days
Windiest months:
November 12.1 mph
January 11.4 mph
March 11.1 mph

Ketchikan on a weather map

Ketchikan
+45°F
W 6 mph
Feels like: +41°F
Precip.: 0%
Places in USA:
Name
°F
+19°F
+77°F
+77°F
+73°F
+75°F
+52°F
+55°F
+72°F
+16°F
+63°F
+66°F
+50°F
+46°F
+54°F
+27°F
24 Hours Forecast
Ketchikan
Local time: 17:00
February 05, thursday
1800
45°F
W
6 mph
2100
45°F
W
6 mph
February 06, friday
0000
45°F
SW
5 mph
0300
43°F
SW
5 mph
0600
45°F
W
4 mph
0900
45°F
W
5 mph
1200
43°F
NW
6 mph
1500
43°F
W
11 mph
Units of measurement: °C / °F