Measurements:
°C
°F
CURRENT WEATHER
13:51
Ketchikan
64°F
SE 9 mph
Feels like: 64°F
Precip: 18%
World Resorts USA Ketchikan Weather

7 Day Weather Forecast

08.25
tue
DAY
64°F
SE 9 mph
precip
22%
NIGHT
60°F
SE 7 mph
precip
49%
08.26
wed
DAY
60°F
NW 6 mph
precip
47%
NIGHT
56°F
NW 5 mph
precip
69%
08.27
thu
DAY
56°F
S 5 mph
precip
23%
NIGHT
54°F
SW 2 mph
precip
30%
08.28
fri
DAY
60°F
SE 7 mph
precip
15%
NIGHT
56°F
S 5 mph
precip
27%
08.29
sat
DAY
54°F
NW 11 mph
precip
84%
NIGHT
54°F
NW 9 mph
precip
87%
08.30
sun
DAY
56°F
NW 12 mph
precip
89%
NIGHT
52°F
SE 2 mph
precip
31%
08.31
mon
DAY
60°F
SE 5 mph
precip
18%
NIGHT
54°F
N 2 mph
precip
25%

Ketchikan Sea Water Temperature in August, °F

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Ketchikan was 15.1°F. The maximum and minimum values were 14.1°F and 16.6°F respectively.

Ketchikan on the Weather Map

Best Time to Visit Ketchikan
The most sunny months:
August 9 days
July 7 days
April 6 days
The most warm months:
August 61.7 °F
July 60.4 °F
June 56.5 °F
Warmest sea temperature:
August 61.1 °F
July 60.0 °F
September 56.6 °F
The most cold months:
December 34.5 °F
January 34.8 °F
February 35.4 °F
The most rainy months:
November 10 days
January 9 days
October 9 days
The most windy months:
November 12 mph
January 11 mph
December 11 mph
more details