Measurements:
°C
°F
Cannon Beach
56°F
SW 3 mph
Feels like: 56°F
Precip: 29%
World Resorts USA Cannon Beach Weather

Cannon Beach Sea Water Temperature

Current Sea Water Temperature:
+59.4°F
Maximum Sea Water Temperature in September: 62.2°F
Minimum Sea Water Temperature in September: 49.8°F
Average water temperature in September: 56.5°F

Sea Water Temperature for the Last 10 Days:

September 15 59.4°F September 10 59.0°F
September 14 59.2°F September 09 60.2°F
September 13 58.0°F September 08 60.0°F
September 12 58.0°F September 07 59.8°F
September 11 57.8°F September 06 60.4°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, September and July.

Average Water Temperature by Month, °F

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Cannon Beach was 56.6°F. The maximum and minimum values were 53.0°F and 63.2°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Cannon Beach was 59.8°F. The maximum and minimum values were 57.8°F and 62.2°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Cannon Beach was 56.9°F. The maximum and minimum values were 51.6°F and 61.2°F respectively.

Best Time to Visit Cannon Beach
The most sunny months:
August 12 days
September 12 days
October 11 days
The most warm months:
August 66.9 °F
July 64.9 °F
September 64.6 °F
Warmest sea temperature:
August 57.9 °F
July 56.5 °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 +62
Chicago +66
Hawaii +80
Las Vegas +80
Los Angeles +72
Maui +66
Miami +88
Myrtle Beach +78
New York +66
Panama City Beach +90
San Diego +70
San Francisco +60
Santa Monica +70
Sarasota +86
Washington +66
24 Hours Weather Forecast
Cannon Beach
Local time: 07:32
15 sep, tuesday
0900 56°F
SW
3 mph
1200 58°F
S
6 mph
1500 60°F
SE
7 mph
1800 60°F
S
9 mph
2100 58°F
S
8 mph
16 sep, wednesday
0000 56°F
SW
6 mph
0300 56°F
SW
7 mph
0600 54°F
SW
7 mph