Measurements:
°C
°F
Cannon Beach
56°F
E 9 mph
Feels like: 54°F
Precip: 0%
World Resorts USA Cannon Beach Weather

Cannon Beach Sea Water Temperature

Current Sea Water Temperature:
+55.0°F
Maximum Sea Water Temperature in May: 58.8°F
Minimum Sea Water Temperature in May: 48.6°F
Average water temperature in May: 53.9°F

Sea Water Temperature for the Last 10 Days:

May 14 55.0°F May 09 53.8°F
May 13 54.2°F May 08 53.2°F
May 12 55.6°F May 07 53.0°F
May 11 55.8°F May 06 52.0°F
May 10 54.8°F May 05 51.0°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
January 47.2 °F
December 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
Boston +56
Chicago +58
Hawaii +78
Honolulu +78
Houston +104
Las Vegas +102
Los Angeles +76
Maui +72
Miami +90
Miami Beach +92
New York +70
San Diego +72
San Francisco +72
Sarasota +96
Tampa +96
24 Hours Weather Forecast
Cannon Beach
Local time: 11:58
14 may, thursday
1200 56°F
E
9 mph
1500 54°F
NE
9 mph
1800 54°F
NE
13 mph
2100 52°F
E
14 mph
15 may, friday
0000 50°F
E
9 mph
0300 50°F
E
6 mph
0600 50°F
E
6 mph
0900 50°F
NE
11 mph