World Resorts USA Bellingham Weather

Bellingham sea water temperature

Current sea water temperature:
+46.6°F
Minimum sea water temperature in March: 48.6°F
Maximum sea water temperature in March: 44.6°F
Average sea water temperature in March: 46.0°F

Sea water temperature for the last 10 days:

March 30 46.6°F March 25 47.8°F
March 29 46.9°F March 24 46.9°F
March 28 47.1°F March 23 47.7°F
March 27 46.8°F March 22 47.3°F
March 26 47.1°F March 21 47.8°F

When is the warmest sea in Bellingham?

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

Monthly Sea Temperatures in Bellingham, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 61.1°F. The highest and lowest sea temperatures during the month were 63.5°F and 58.8°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 60.5°F. The highest and lowest sea temperatures during the month were 64.6°F and 56.7°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 59.8°F. The highest and lowest sea temperatures during the month were 63.9°F and 55.2°F.

Best time for vacation in Bellingham

Sunniest months:
July 21 days
August 18 days
June 11 days
Warmest months:
August 72.3 °F
July 71.7 °F
September 67.4 °F
Warmest sea temp:
July 62.0 °F
August 62.0 °F
September 58.7 °F
Coldest months:
December 41.6 °F
January 42.0 °F
February 42.8 °F
Rainiest months:
November 7 days
January 6 days
October 5 days
Windiest months:
December 5.1 mph
February 4.8 mph
March 4.7 mph

Bellingham on a weather map

Bellingham
+39°F
NW 3 mph
Feels like: +37°F
Precip.: 0%
Places in USA:
Name
°F
+72°F
+68°F
+68°F
+79°F
+61°F
+81°F
+81°F
+63°F
+64°F
+61°F
+55°F
+82°F
+82°F
+70°F
+50°F
24 Hours Forecast
Bellingham
Local time: 08:17
March 30, monday
0900
39°F
NW
3 mph
1200
45°F
E
6 mph
1500
48°F
SE
4 mph
1800
50°F
SE
4 mph
2100
41°F
SW
4 mph
March 31, tuesday
0000
39°F
SW
5 mph
0300
39°F
SW
4 mph
0600
39°F
SW
4 mph
Units of measurement: °C / °F