Measurements:
°C
°F
Whidbey Island
46°F
NW 6 mph
Feels like: 40°F
Precip: 100%
World Resorts USA Whidbey Island Weather

Whidbey Island Sea Water Temperature

Current Sea Water Temperature:
+44.6°F
Maximum Sea Water Temperature in January: 48.6°F
Minimum Sea Water Temperature in January: 43.0°F
Average water temperature in January: 46.1°F

Sea Water Temperature for the Last 10 Days:

January 29 44.6°F January 24 45.4°F
January 28 44.6°F January 23 44.0°F
January 27 44.2°F January 22 44.2°F
January 26 44.0°F January 21 44.4°F
January 25 45.0°F January 20 44.4°F

When is the Warmest Sea for Whidbey Island?

According to our data for the last three years for Whidbey Island the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Whidbey Island was 60.6°F. The maximum and minimum values were 57.8°F and 62.6°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Whidbey Island was 59.2°F. The maximum and minimum values were 57.6°F and 61.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Whidbey Island was 59.4°F. The maximum and minimum values were 56.0°F and 62.6°F respectively.

Best Time to Visit Whidbey Island
The most sunny months:
July 19 days
August 17 days
September 13 days
The most warm months:
August 69.2 °F
July 68.6 °F
September 64.7 °F
Warmest sea temperature:
August 60.8 °F
July 59.8 °F
September 58.5 °F
The most cold months:
February 42.3 °F
December 42.3 °F
January 42.3 °F
The most rainy months:
November 4 days
January 4 days
April 3 days
The most windy months:
December 7 mph
January 7 mph
November 7 mph

Whidbey Island on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +74
Honolulu +74
Houston +38
Las Vegas +48
Los Angeles +56
Maui +68
Miami +64
Miami Beach +70
New York +12
San Diego +60
San Francisco +50
Sarasota +58
Tampa +58
Washington +12
24 Hours Weather Forecast
Whidbey Island
Local time: 07:55
29 jan, thursday
0900 46°F
NW
6 mph
1200 48°F
NW
7 mph
1500 50°F
NW
6 mph
1800 50°F
NW
5 mph
2100 48°F
N
4 mph
30 jan, friday
0000 48°F
NW
5 mph
0300 48°F
NW
4 mph
0600 48°F
NW
5 mph