World Resorts USA Whidbey Island Weather

Whidbey Island weather in April

Weather in Whidbey Island: April

Average day temperature: 51.5°F
Average night temperature: 44.0°F
Sea water temperature: 49.4°F
Number of sunny days: 7 days
Day length: 12.9 - 14.5 hours
Number of rainy days: 3 days
Precipitation totals: 1.2 in.

Air temperature in April, °F

Show year:
2025
2024
2023

The highest day temperature during April of 2025 was 68°F. At the same time the lowest night temperature was 39°F. Daily and nightly averages during April were 57.1°F and 47.3°F.

Sea water temperature in Whidbey Island in April, °F

Show year:
2025
2024
2023

The average sea water temperature in April of 2025 was 50.1°F. The highest and lowest sea temperatures during the month were 52.5°F and 46.9°F.

Sunny, partly cloudy and cloudy days

Mostly all days in April are cloudy but sunny and partly cloudy days are also possible.

Precipitation total in April, in.

Precipitation total value in Whidbey Island in April is 1.2 in. Other months of the year show relatively similar values.

Wind speed in April, mph

The average wind speed value in April is 6.4 mph

Average sunny hours

This chart shows average number of hours during the day when sunlight can reach the ground. It depends on day length and cloudiness during the day. The average number of sunny hours in April is: 5.5.

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 42.5 °F
January 42.8 °F
February 43.0 °F
Rainiest months:
January 5 days
November 4 days
April 3 days
Windiest months:
January 7.9 mph
December 7.8 mph
November 7.0 mph

Whidbey Island on a weather map

Whidbey Island
+43°F
NW 3 mph
Feels like: +39°F
Precip.: 100%
Places in USA:
Name
°F
+30°F
+77°F
+77°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+9°F
24 Hours Forecast
Whidbey Island
Local time: 20:00
December 04, thursday
2100
43°F
NW
3 mph
December 05, friday
0000
43°F
NW
4 mph
0300
45°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
Units of measurement: °C / °F