Measurements:
°C
°F
Cannon Beach
48°F
S 7 mph
Feels like: 42°F
Precip: 100%
World Resorts USA Cannon Beach Weather

Cannon Beach Sea Water Temperature

Current Sea Water Temperature:
+49.6°F
Maximum Sea Water Temperature in March: 52.4°F
Minimum Sea Water Temperature in March: 45.4°F
Average water temperature in March: 48.4°F

Sea Water Temperature for the Last 10 Days:

March 13 49.6°F March 08 50.4°F
March 12 49.8°F March 07 50.6°F
March 11 49.4°F March 06 50.6°F
March 10 50.4°F March 05 50.2°F
March 09 51.4°F March 04 50.4°F

When is the Warmest Sea for Cannon Beach?

According to our data for the last three years for Cannon Beach 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 Cannon Beach was 58.1°F. The maximum and minimum values were 55.0°F and 61.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Cannon Beach was 53.1°F. The maximum and minimum values were 49.8°F and 55.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Cannon Beach was 55.4°F. The maximum and minimum values were 49.8°F and 59.4°F respectively.

Best Time to Visit Cannon Beach
The most sunny months:
August 13 days
September 12 days
July 11 days
The most warm months:
August 66.9 °F
July 64.9 °F
September 64.6 °F
Warmest sea temperature:
August 58.1 °F
July 56.4 °F
September 56.2 °F
The most cold months:
February 45.8 °F
March 47.2 °F
January 47.2 °F
The most rainy months:
January 8 days
November 7 days
December 5 days
The most windy months:
December 9 mph
January 9 mph
November 9 mph

Cannon Beach on the Weather Map

USA Resorts:
NAME
Chicago +44
Hawaii +76
Honolulu +76
Houston +78
Las Vegas +96
Los Angeles +100
Maui +70
Miami +80
Miami Beach +82
New York +42
San Diego +94
San Francisco +74
Sarasota +76
Tampa +82
Washington +60
24 Hours Weather Forecast
Cannon Beach
Local time: 15:17
13 mar, friday
1800 48°F
S
6 mph
2100 44°F
S
7 mph
14 mar, saturday
0000 40°F
S
10 mph
0300 40°F
SE
14 mph
0600 40°F
SE
15 mph
0900 40°F
SE
16 mph
1200 42°F
SE
14 mph
1500 42°F
SE
13 mph