Measurements:
°C
°F
Whidbey Island
38°F
S 2 mph
Feels like: 34°F
Precip: 100%
World Resorts USA Whidbey Island Weather

Whidbey Island Sea Water Temperature

Current Sea Water Temperature:
+46.8°F
Maximum Sea Water Temperature in March: 50.0°F
Minimum Sea Water Temperature in March: 44.2°F
Average water temperature in March: 46.4°F

Sea Water Temperature for the Last 10 Days:

March 13 46.8°F March 08 48.0°F
March 12 47.2°F March 07 48.4°F
March 11 47.6°F March 06 48.6°F
March 10 48.0°F March 05 48.2°F
March 09 48.6°F March 04 48.4°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:
December 42.3 °F
January 42.4 °F
February 43.0 °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 +44
Hawaii +76
Honolulu +76
Houston +78
Las Vegas +96
Los Angeles +100
Maui +70
Miami +80
Miami Beach +82
New York +42
San Diego +94
San Francisco +74
Sarasota +76
Tampa +82
Washington +60
24 Hours Weather Forecast
Whidbey Island
Local time: 15:23
13 mar, friday
1800 38°F
SW
1 mph
2100 38°F
SE
1 mph
14 mar, saturday
0000 38°F
SE
3 mph
0300 36°F
E
7 mph
0600 34°F
NE
4 mph
0900 36°F
SE
3 mph
1200 40°F
N
6 mph
1500 42°F
N
4 mph