Measurements:
°C
°F
Whidbey Island
58°F
S 5 mph
Feels like: 56°F
Precip: 20%
World Resorts USA Whidbey Island Weather

Whidbey Island Sea Water Temperature

Current Sea Water Temperature:
+57.0°F
Maximum Sea Water Temperature in October: 57.8°F
Minimum Sea Water Temperature in October: 50.4°F
Average water temperature in October: 54.5°F

Sea Water Temperature for the Last 10 Days:

October 05 57.0°F September 30 55.8°F
October 04 55.8°F September 29 56.4°F
October 03 55.8°F September 28 56.0°F
October 02 54.8°F September 27 56.8°F
October 01 55.6°F September 26 55.8°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Whidbey Island was 60.8°F. The maximum and minimum values were 58.0°F and 63.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Whidbey Island was 59.1°F. The maximum and minimum values were 55.8°F and 63.8°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Whidbey Island was 58.8°F. The maximum and minimum values were 55.8°F and 61.0°F respectively.

Best Time to Visit Whidbey Island
The most sunny months:
July 19 days
August 16 days
September 12 days
The most warm months:
August 69.6 °F
July 68.9 °F
September 64.3 °F
Warmest sea temperature:
August 60.8 °F
July 59.7 °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
F°
Boston +58
Chicago +62
Hawaii +82
Houston +86
Las Vegas +92
Los Angeles +100
Maui +74
Miami +88
Myrtle Beach +70
New York +62
San Diego +84
San Francisco +66
Santa Monica +94
Sarasota +84
Washington +64
24 Hours Weather Forecast
Whidbey Island
Local time: 16:52
05 oct, monday
1800 58°F
S
5 mph
2100 54°F
S
5 mph
06 oct, tuesday
0000 54°F
SW
2 mph
0300 54°F
NW
1 mph
0600 54°F
S
2 mph
0900 54°F
SE
4 mph
1200 58°F
S
7 mph
1500 58°F
SE
11 mph