Measurements:
°C
°F
Cannon Beach
76°F
SE 8 mph
Feels like: 80°F
Precip: 6%
World Resorts USA Cannon Beach Weather

Cannon Beach Sea Water Temperature

Current Sea Water Temperature:
+58.0°F
Maximum Sea Water Temperature in August: 63.6°F
Minimum Sea Water Temperature in August: 51.0°F
Average water temperature in August: 58.1°F

Sea Water Temperature for the Last 10 Days:

August 05 58.0°F July 31 61.0°F
August 04 60.0°F July 30 61.2°F
August 03 62.2°F July 29 60.0°F
August 02 62.0°F July 28 58.8°F
August 01 62.0°F July 27 57.0°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: 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.

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
October 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 56.5 °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 +94
Chicago +82
Hawaii +82
Houston +102
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
Cannon Beach
Local time: 11:23
05 aug, wednesday
1200 76°F
SE
8 mph
1500 74°F
SE
9 mph
1800 70°F
S
7 mph
2100 62°F
S
5 mph
06 aug, thursday
0000 56°F
S
5 mph
0300 56°F
S
4 mph
0600 54°F
SW
2 mph
0900 64°F
S
3 mph