Measurements:
°C
°F
Whidbey Island
42°F
NW 3 mph
Feels like: 38°F
Precip: 100%
World Resorts USA Whidbey Island Weather

Whidbey Island Sea Water Temperature

Current Sea Water Temperature:
+47.8°F
Maximum Sea Water Temperature in December: 49.8°F
Minimum Sea Water Temperature in December: 46.0°F
Average water temperature in December: 47.6°F

Sea Water Temperature for the Last 10 Days:

December 04 47.8°F November 29 49.4°F
December 03 47.8°F November 28 49.0°F
December 02 47.8°F November 27 49.2°F
December 01 48.0°F November 26 49.4°F
November 30 48.8°F November 25 49.6°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:
December 41.6 °F
January 42.0 °F
February 42.3 °F
The most rainy months:
January 5 days
November 4 days
April 3 days
The most windy months:
January 7 mph
December 7 mph
November 7 mph

Whidbey Island on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +80
Honolulu +80
Houston +46
Las Vegas +44
Los Angeles +56
Maui +72
Miami +72
Miami Beach +80
New York +22
San Diego +58
San Francisco +48
Sarasota +64
Tampa +64
Washington +28
24 Hours Weather Forecast
Whidbey Island
Local time: 21:19
05 dec, friday
0000 42°F
NW
4 mph
0300 44°F
NW
2 mph
0600 46°F
NW
4 mph
0900 46°F
NW
7 mph
1200 48°F
N
7 mph
1500 50°F
NE
2 mph
1800 52°F
NE
4 mph
2100 50°F
N
6 mph