Measurements:
°C
°F
Sea Isle City
82°F
E 7 mph
Feels like: 84°F
Precip: 3%
World Resorts USA Sea Isle City Weather

Sea Isle City Sea Water Temperature

Current Sea Water Temperature:
+79.0°F
Maximum Sea Water Temperature in August: 83.8°F
Minimum Sea Water Temperature in August: 72.0°F
Average water temperature in August: 77.3°F

Sea Water Temperature for the Last 10 Days:

August 25 79.0°F August 20 80.6°F
August 24 79.8°F August 19 80.4°F
August 23 78.6°F August 18 79.0°F
August 22 78.4°F August 17 79.2°F
August 21 80.0°F August 16 79.4°F

When is the Warmest Sea for Sea Isle City?

According to our data for the last three years for Sea Isle City the highest average sea water temperature was in July, August and September.

Average Water Temperature by Month, °F

Sea Water Temperature in July

Select Year: 2026 2025 2024

The average sea surface temperature in July 2026 for Sea Isle City was 77.7°F. The maximum and minimum values were 72.6°F and 81.0°F respectively.

Sea Water Temperature in August

Select Year: 2026 2025 2024

The average sea surface temperature in August 2026 for Sea Isle City was 78.9°F. The maximum and minimum values were 76.8°F and 80.8°F respectively.

Sea Water Temperature in September

Select Year: 2025 2024 2023

The average sea surface temperature in September 2025 for Sea Isle City was 74.3°F. The maximum and minimum values were 72.6°F and 76.6°F respectively.

Best Time to Visit Sea Isle City
The most sunny months:
November 18 days
October 15 days
June 15 days
The most warm months:
July 84.6 °F
August 82.2 °F
June 78.0 °F
Warmest sea temperature:
July 77.5 °F
August 77.3 °F
September 75.4 °F
The most cold months:
January 38.5 °F
February 40.5 °F
December 44.0 °F
The most rainy months:
July 3 days
October 2 days
April 2 days
The most windy months:
January 11 mph
March 11 mph
December 11 mph

Sea Isle City 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
Sea Isle City
Local time: 17:38
25 aug, tuesday
1800 82°F
E
7 mph
2100 78°F
NE
7 mph
26 aug, wednesday
0000 76°F
NE
6 mph
0300 70°F
S
5 mph
0600 70°F
SW
5 mph
0900 74°F
W
5 mph
1200 78°F
NW
6 mph
1500 80°F
NW
8 mph