Measurements:
°C
°F
CURRENT WEATHER
08:59
Washington
66°F
SW 4 mph
Feels like: 66°F
Precip: 3%
World Resorts USA Washington Weather

7 Day Weather Forecast

09.15
tue
DAY
76°F
NW 6 mph
precip
1%
NIGHT
68°F
NW 6 mph
precip
13%
09.16
wed
DAY
82°F
N 5 mph
precip
1%
NIGHT
72°F
N 6 mph
precip
4%
09.17
thu
DAY
86°F
N 7 mph
precip
1%
NIGHT
78°F
NE 4 mph
precip
11%
09.18
fri
DAY
86°F
S 7 mph
precip
12%
NIGHT
76°F
SW 6 mph
precip
16%
09.19
sat
DAY
76°F
NW 8 mph
precip
16%
NIGHT
76°F
N 6 mph
precip
19%
09.20
sun
DAY
94°F
E 9 mph
precip
11%
NIGHT
78°F
SW 4 mph
precip
65%
09.21
mon
DAY
82°F
W 4 mph
precip
18%
NIGHT
72°F
W 7 mph
precip
68%

Washington Sea Water Temperature in September, °F

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Washington was 27.6°F. The maximum and minimum values were 26.7°F and 28.7°F respectively.

Washington on the Weather Map

Best Time to Visit Washington
The most sunny months:
November 16 days
June 15 days
October 15 days
The most warm months:
July 93.6 °F
August 90.4 °F
June 87.0 °F
Warmest sea temperature:
July 84.9 °F
August 83.4 °F
June 78.4 °F
The most cold months:
January 38.3 °F
February 43.1 °F
December 45.4 °F
The most rainy months:
August 5 days
May 5 days
June 5 days
The most windy months:
April 9 mph
March 9 mph
February 8 mph
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