Measurements:
°C
°F
Bellingham
80°F
E 6 mph
Feels like: 84°F
Precip: 4%
World Resorts USA Bellingham Weather

Bellingham Sea Water Temperature

Current Sea Water Temperature:
+62.8°F
Maximum Sea Water Temperature in August: 67.8°F
Minimum Sea Water Temperature in August: 57.0°F
Average water temperature in August: 63.5°F

Sea Water Temperature for the Last 10 Days:

August 05 62.8°F July 31 63.4°F
August 04 63.2°F July 30 62.8°F
August 03 62.8°F July 29 64.4°F
August 02 65.4°F July 28 63.4°F
August 01 64.8°F July 27 62.6°F

When is the Warmest Sea for Bellingham?

According to our data for the last three years for Bellingham the highest average sea water temperature was in August, July and September.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2025 2024 2023

The average sea surface temperature in August 2025 for Bellingham was 62.3°F. The maximum and minimum values were 59.8°F and 65.0°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Bellingham was 61.3°F. The maximum and minimum values were 58.2°F and 64.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Bellingham was 60.9°F. The maximum and minimum values were 55.8°F and 65.4°F respectively.

Best Time to Visit Bellingham
The most sunny months:
July 22 days
August 18 days
June 13 days
The most warm months:
August 74.7 °F
July 74.2 °F
September 69.3 °F
Warmest sea temperature:
August 63.4 °F
July 63.1 °F
September 59.6 °F
The most cold months:
December 40.7 °F
January 41.1 °F
February 42.0 °F
The most rainy months:
November 7 days
January 6 days
October 5 days
The most windy months:
December 5 mph
February 4 mph
March 4 mph

Bellingham on the Weather Map

USA Resorts:
NAME
Boston +94
Chicago +82
Hawaii +82
Houston +106
Las Vegas +124
Los Angeles +92
Maui +78
Miami +92
Myrtle Beach +84
New York +84
San Diego +80
San Francisco +62
Santa Monica +80
Sarasota +92
Washington +88
24 Hours Weather Forecast
Bellingham
Local time: 12:17
05 aug, wednesday
1500 86°F
E
4 mph
1800 86°F
SE
2 mph
2100 70°F
NW
3 mph
06 aug, thursday
0000 60°F
W
3 mph
0300 58°F
W
2 mph
0600 56°F
NW
2 mph
0900 68°F
E
2 mph
1200 72°F
E
4 mph