World Resorts USA Whidbey Island Weather

Whidbey Island sea water temperature

Current sea water temperature:
+51.3°F
Minimum sea water temperature in April: 54.5°F
Maximum sea water temperature in April: 46.9°F
Average sea water temperature in April: 49.6°F

Sea water temperature for the last 10 days:

April 29 51.3°F April 24 49.8°F
April 28 53.6°F April 23 51.3°F
April 27 51.8°F April 22 51.8°F
April 26 51.3°F April 21 50.5°F
April 25 50.5°F April 20 50.5°F

When is the warmest sea in Whidbey Island?

Based on the data about daily sea water temperature for the last three years the warmest sea in Whidbey Island was noticed in August, July and September.

Monthly Sea Temperatures in Whidbey Island, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 59.5°F. The highest and lowest sea temperatures during the month were 61.3°F and 57.0°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 58.3°F. The highest and lowest sea temperatures during the month were 60.3°F and 56.8°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 58.4°F. The highest and lowest sea temperatures during the month were 61.3°F and 55.4°F.

Best time for vacation in Whidbey Island

Sunniest months:
July 19 days
August 17 days
September 13 days
Warmest months:
August 67.3 °F
July 66.7 °F
September 63.2 °F
Warmest sea temp:
August 59.7 °F
July 58.8 °F
September 57.7 °F
Coldest months:
December 43.1 °F
January 43.2 °F
February 43.7 °F
Rainiest months:
November 4 days
January 4 days
April 3 days
Windiest months:
December 7.5 mph
January 7.5 mph
November 7.0 mph

Whidbey Island on a weather map

Whidbey Island
+45°F
SE 3 mph
Feels like: +41°F
Precip.: 0%
Places in USA:
Name
°F
+55°F
+73°F
+73°F
+57°F
+52°F
+79°F
+79°F
+66°F
+54°F
+54°F
+50°F
+77°F
+75°F
+77°F
+54°F
24 Hours Forecast
Whidbey Island
Local time: 05:36
April 29, wednesday
0600
45°F
SE
3 mph
0900
52°F
S
5 mph
1200
57°F
S
7 mph
1500
59°F
S
7 mph
1800
57°F
S
7 mph
2100
50°F
S
5 mph
April 30, thursday
0000
48°F
SW
2 mph
0300
46°F
W
1 mph
Units of measurement: °C / °F