World Resorts USA Seward Weather

Seward sea water temperature

Current sea water temperature:
+43.9°F
Minimum sea water temperature in December: 47.1°F
Maximum sea water temperature in December: 40.6°F
Average sea water temperature in December: 42.8°F

Sea water temperature for the last 10 days:

December 4 43.9°F November 29 45.0°F
December 3 44.1°F November 28 45.3°F
December 2 44.2°F November 27 45.5°F
December 1 44.4°F November 26 45.9°F
November 30 44.8°F November 25 45.7°F

When is the warmest sea in Seward?

Based on the data about daily sea water temperature for the last three years the warmest sea in Seward was noticed in August, July and September.

Monthly Sea Temperatures in Seward, °F

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 55.9°F. The highest and lowest sea temperatures during the month were 58.3°F and 53.4°F.

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 54.6°F. The highest and lowest sea temperatures during the month were 56.1°F and 53.1°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 54.0°F. The highest and lowest sea temperatures during the month were 55.2°F and 52.7°F.

Best time for vacation in Seward

Sunniest months:
January 7 days
November 7 days
October 6 days
Warmest months:
July 61.0 °F
August 59.8 °F
June 58.3 °F
Warmest sea temp:
August 56.2 °F
July 55.2 °F
September 53.3 °F
Coldest months:
January 20.6 °F
December 22.3 °F
February 25.5 °F
Rainiest months:
August 5 days
September 5 days
October 4 days
Windiest months:
January 5.4 mph
November 5.3 mph
December 5.2 mph

Seward on a weather map

Seward
+37°F
SE 2 mph
Feels like: +37°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+77°F
+77°F
+45°F
+55°F
+70°F
+77°F
+70°F
+25°F
+57°F
+48°F
+63°F
+63°F
+46°F
+5°F
24 Hours Forecast
Seward
Local time: 19:47
December 04, thursday
2100
37°F
SE
2 mph
December 05, friday
0000
37°F
SE
2 mph
0300
37°F
S
3 mph
0600
30°F
SE
6 mph
0900
25°F
S
7 mph
1200
30°F
S
7 mph
1500
28°F
S
6 mph
1800
25°F
S
9 mph
Units of measurement: °C / °F