Measurements:
°C
°F
Cannon Beach
66°F
NE 17 mph
Feels like: 66°F
Precip: 21%
World Resorts USA Cannon Beach Weather

Cannon Beach Sea Water Temperature

Current Sea Water Temperature:
+56.4°F
Maximum Sea Water Temperature in August: 63.6°F
Minimum Sea Water Temperature in August: 51.0°F
Average water temperature in August: 57.7°F

Sea Water Temperature for the Last 10 Days:

August 25 56.4°F August 20 53.4°F
August 24 54.0°F August 19 53.4°F
August 23 54.2°F August 18 53.6°F
August 22 53.2°F August 17 55.2°F
August 21 53.2°F August 16 53.8°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Cannon Beach was 55.7°F. The maximum and minimum values were 53.0°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.

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 57.7 °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 +80
Chicago +80
Hawaii +84
Houston +106
Las Vegas +116
Los Angeles +96
Maui +70
Miami +92
Myrtle Beach +84
New York +82
San Diego +96
San Francisco +64
Santa Monica +86
Sarasota +92
Washington +84
24 Hours Weather Forecast
Cannon Beach
Local time: 14:45
25 aug, tuesday
1500 66°F
NE
17 mph
1800 62°F
N
15 mph
2100 62°F
N
9 mph
26 aug, wednesday
0000 56°F
N
8 mph
0300 56°F
N
8 mph
0600 56°F
N
7 mph
0900 60°F
N
8 mph
1200 62°F
NE
14 mph