Measurements:
°C
°F
Seaside
50°F
N 19 mph
Feels like: 44°F
Precip: 100%
World Resorts USA Seaside Weather

Seaside Sea Water Temperature

Current Sea Water Temperature:
+50.4°F
Maximum Sea Water Temperature in January: 52.4°F
Minimum Sea Water Temperature in January: 46.6°F
Average water temperature in January: 49.7°F

Sea Water Temperature for the Last 10 Days:

January 29 50.4°F January 24 51.6°F
January 28 50.2°F January 23 49.8°F
January 27 50.4°F January 22 50.0°F
January 26 51.6°F January 21 50.6°F
January 25 51.4°F January 20 50.8°F

When is the Warmest Sea for Seaside?

According to our data for the last three years for Seaside 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 Seaside was 58.1°F. The maximum and minimum values were 55.6°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 Seaside was 53.7°F. The maximum and minimum values were 50.8°F and 56.4°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Seaside was 56.2°F. The maximum and minimum values were 50.8°F and 59.8°F respectively.

Best Time to Visit Seaside
The most sunny months:
August 13 days
September 12 days
July 11 days
The most warm months:
August 66.5 °F
July 64.6 °F
September 64.2 °F
Warmest sea temperature:
August 58.2 °F
July 56.5 °F
September 56.4 °F
The most cold months:
February 45.0 °F
January 47.0 °F
March 47.0 °F
The most rainy months:
January 8 days
November 6 days
December 5 days
The most windy months:
December 10 mph
January 9 mph
February 9 mph

Seaside on the Weather Map

USA Resorts:
NAME
Chicago 0
Hawaii +74
Honolulu +74
Houston +38
Las Vegas +48
Los Angeles +56
Maui +68
Miami +64
Miami Beach +70
New York +12
San Diego +60
San Francisco +50
Sarasota +58
Tampa +58
Washington +12
24 Hours Weather Forecast
Seaside
Local time: 07:52
29 jan, thursday
0900 50°F
N
19 mph
1200 52°F
N
15 mph
1500 52°F
N
12 mph
1800 52°F
N
13 mph
2100 50°F
NW
6 mph
30 jan, friday
0000 50°F
W
9 mph
0300 52°F
NW
7 mph
0600 52°F
NW
7 mph