World Resorts USA Washington Weather

Washington sea water temperature

Current sea water temperature:
+50.4°F
Minimum sea water temperature in December: 55.8°F
Maximum sea water temperature in December: 37.6°F
Average sea water temperature in December: 46.5°F

Sea water temperature for the last 10 days:

December 14 50.4°F December 9 52.0°F
December 13 51.1°F December 8 52.2°F
December 12 51.3°F December 7 52.3°F
December 11 51.6°F December 6 51.6°F
December 10 51.8°F December 5 50.7°F

When is the warmest sea in Washington?

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

Monthly Sea Temperatures in Washington, °F

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 84.8°F. The highest and lowest sea temperatures during the month were 87.3°F and 81.1°F.

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 81.4°F. The highest and lowest sea temperatures during the month were 85.8°F and 75.7°F.

Sea water temperature in June, °F

Show year:
2025
2024
2023

The average sea water temperature in June of 2025 was 75.9°F. The highest and lowest sea temperatures during the month were 85.5°F and 65.8°F.

Best time for vacation in Washington

Sunniest months:
November 16 days
June 15 days
October 15 days
Warmest months:
July 89.1 °F
August 86.2 °F
June 83.0 °F
Warmest sea temp:
July 81.2 °F
August 79.9 °F
June 75.4 °F
Coldest months:
January 39.6 °F
February 44.0 °F
December 46.1 °F
Rainiest months:
August 5 days
May 5 days
June 5 days
Windiest months:
April 9.1 mph
March 9.0 mph
February 8.5 mph

Washington on a weather map

Washington
+21°F
E 15 mph
Feels like: +7°F
Precip.: 0%
Places in USA:
Name
°F
+21°F
+77°F
+77°F
+63°F
+66°F
+73°F
+72°F
+73°F
+23°F
+61°F
+48°F
+66°F
+64°F
+43°F
+10°F
24 Hours Forecast
Washington
Local time: 21:24
December 15, monday
0000
21°F
SE
15 mph
0300
21°F
SE
11 mph
0600
19°F
SE
9 mph
0900
25°F
E
10 mph
1200
32°F
SE
11 mph
1500
32°F
SE
9 mph
1800
30°F
SE
3 mph
2100
28°F
N
2 mph
Units of measurement: °C / °F