Measurements:
°C
°F
Seward
-8°F
S 6 mph
Feels like: -24°F
Precip: 88%
World Resorts USA Seward Weather

Seward Sea Water Temperature

Current Sea Water Temperature:
+40.8°F
Maximum Sea Water Temperature in January: 43.4°F
Minimum Sea Water Temperature in January: 38.2°F
Average water temperature in January: 40.3°F

Sea Water Temperature for the Last 10 Days:

January 08 40.8°F January 03 41.8°F
January 07 41.0°F January 02 42.0°F
January 06 41.0°F January 01 41.6°F
January 05 41.2°F December 31 41.8°F
January 04 41.6°F December 30 42.2°F

When is the Warmest Sea for Seward?

According to our data for the last three years for Seward 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 Seward was 56.6°F. The maximum and minimum values were 53.8°F and 59.2°F respectively.

Sea Water Temperature in July

Select Year: 2025 2024 2023

The average sea surface temperature in July 2025 for Seward was 55.1°F. The maximum and minimum values were 53.4°F and 56.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Seward was 54.5°F. The maximum and minimum values were 53.0°F and 55.8°F respectively.

Best Time to Visit Seward
The most sunny months:
January 7 days
November 7 days
October 6 days
The most warm months:
July 62.2 °F
August 60.9 °F
June 59.2 °F
Warmest sea temperature:
August 56.9 °F
July 55.8 °F
September 53.7 °F
The most cold months:
January 17.3 °F
December 17.4 °F
February 22.8 °F
The most rainy months:
August 5 days
September 5 days
October 4 days
The most windy months:
December 6 mph
January 5 mph
November 5 mph

Seward on the Weather Map

USA Resorts:
NAME
Chicago +54
Hawaii +78
Honolulu +78
Houston +78
Las Vegas +54
Los Angeles +58
Maui +72
Miami +86
Miami Beach +80
New York +52
San Diego +64
San Francisco +52
Sarasota +82
Tampa +88
Washington +60
24 Hours Weather Forecast
Seward
Local time: 11:29
08 jan, thursday
1200 -8°F
S
6 mph
1500 2°F
S
4 mph
1800 0°F
S
5 mph
2100 0°F
S
7 mph
09 jan, friday
0000 4°F
S
9 mph
0300 10°F
S
10 mph
0600 14°F
S
14 mph
0900 18°F
S
11 mph