Measurements:
°C
°F
Seward
48°F
NW 4 mph
Feels like: 46°F
Precip: 34%
World Resorts USA Seward Weather

Seward Sea Water Temperature

Current Sea Water Temperature:
+53.8°F
Maximum Sea Water Temperature in September: 57.0°F
Minimum Sea Water Temperature in September: 50.4°F
Average water temperature in September: 53.6°F

Sea Water Temperature for the Last 10 Days:

September 15 53.8°F September 10 53.2°F
September 14 53.2°F September 09 53.6°F
September 13 52.2°F September 08 53.0°F
September 12 52.2°F September 07 52.8°F
September 11 52.6°F September 06 52.2°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: 2026 2025 2024

The average sea surface temperature in August 2026 for Seward was 55.5°F. The maximum and minimum values were 52.8°F and 58.4°F respectively.

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Seward was 52.7°F. The maximum and minimum values were 51.0°F and 54.2°F respectively.

Sea Water Temperature in September

Select Year: 2026 2025 2024

The average sea surface temperature in September 2026 for Seward was 52.9°F. The maximum and minimum values were 52.2°F and 53.8°F respectively.

Best Time to Visit Seward
The most sunny months:
January 7 days
November 7 days
March 6 days
The most warm months:
July 61.3 °F
August 60.2 °F
June 58.4 °F
Warmest sea temperature:
August 56.7 °F
July 55.3 °F
September 53.7 °F
The most cold months:
December 17.4 °F
January 17.9 °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
February 5 mph

Seward 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 +72
Sarasota +86
Washington +66
24 Hours Weather Forecast
Seward
Local time: 05:41
15 sep, tuesday
0600 48°F
NW
4 mph
0900 48°F
N
9 mph
1200 48°F
NW
6 mph
1500 46°F
NW
6 mph
1800 48°F
SW
3 mph
2100 48°F
NE
2 mph
16 sep, wednesday
0000 48°F
SE
6 mph
0300 46°F
SE
11 mph