Measurements:
°C
°F
CURRENT WEATHER
06:42
Whidbey Island
54°F
NW 2 mph
Feels like: 54°F
Precip: 29%
World Resorts USA Whidbey Island Weather

7 Day Weather Forecast

09.15
tue
DAY
56°F
SE 4 mph
precip
27%
NIGHT
56°F
S 6 mph
precip
13%
09.16
wed
DAY
60°F
S 8 mph
precip
6%
NIGHT
56°F
S 5 mph
precip
13%
09.17
thu
DAY
60°F
SE 7 mph
precip
7%
NIGHT
56°F
SW 3 mph
precip
12%
09.18
fri
DAY
62°F
NW 6 mph
precip
6%
NIGHT
56°F
SW 3 mph
precip
14%
09.19
sat
DAY
58°F
S 4 mph
precip
22%
NIGHT
52°F
SW 2 mph
precip
15%
09.20
sun
DAY
58°F
SE 6 mph
precip
21%
NIGHT
54°F
SW 4 mph
precip
14%
09.21
mon
DAY
62°F
NE 6 mph
precip
5%
NIGHT
56°F
SE 12 mph
precip
19%

Whidbey Island Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Whidbey Island was 14.6°F. The maximum and minimum values were 13.6°F and 15.2°F respectively.

Whidbey Island on the Weather Map

Best Time to Visit Whidbey Island
The most sunny months:
July 19 days
August 16 days
September 13 days
The most warm months:
August 69.6 °F
July 68.9 °F
September 64.7 °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
more details