Measurements:
°C
°F
Whidbey Island
70°F
S 6 mph
Feels like: 70°F
Precip: 5%
World Resorts USA Whidbey Island Weather

Whidbey Island Sea Water Temperature

Current Sea Water Temperature:
+58.4°F
Maximum Sea Water Temperature in July: 66.2°F
Minimum Sea Water Temperature in July: 55.8°F
Average water temperature in July: 59.7°F

Sea Water Temperature for the Last 10 Days:

July 15 58.4°F July 10 59.4°F
July 14 58.4°F July 09 59.0°F
July 13 55.8°F July 08 59.0°F
July 12 57.0°F July 07 58.8°F
July 11 57.4°F July 06 58.2°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: 2026 2025 2024

The average sea surface temperature in July 2026 for Whidbey Island was 58.1°F. The maximum and minimum values were 55.8°F and 59.4°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
Boston +94
Chicago +88
Hawaii +80
Houston +90
Las Vegas +120
Los Angeles +106
Maui +76
Miami +100
Myrtle Beach +96
New York +114
San Diego +96
San Francisco +76
Santa Monica +84
Sarasota +102
Tampa +100
24 Hours Weather Forecast
Whidbey Island
Local time: 11:18
15 jul, wednesday
1200 70°F
S
6 mph
1500 72°F
S
8 mph
1800 72°F
S
9 mph
2100 62°F
S
6 mph
16 jul, thursday
0000 58°F
NW
5 mph
0300 56°F
E
2 mph
0600 56°F
S
2 mph
0900 62°F
N
3 mph