World Resorts USA Sea Isle City Weather

Sea Isle City sea water temperature

Current sea water temperature:
+42.1°F
Minimum sea water temperature in December: 55.9°F
Maximum sea water temperature in December: 40.3°F
Average sea water temperature in December: 47.0°F

Sea water temperature for the last 10 days:

December 30 42.1°F December 25 42.8°F
December 29 42.3°F December 24 42.6°F
December 28 41.9°F December 23 42.4°F
December 27 41.9°F December 22 41.9°F
December 26 43.2°F December 21 42.1°F

When is the warmest sea in Sea Isle City?

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

Monthly Sea Temperatures in Sea Isle City, °F

Sea water temperature in July, °F

Show year:
2025
2024
2023

The average sea water temperature in July of 2025 was 76.3°F. The highest and lowest sea temperatures during the month were 79.7°F and 72.5°F.

Sea water temperature in August, °F

Show year:
2025
2024
2023

The average sea water temperature in August of 2025 was 75.9°F. The highest and lowest sea temperatures during the month were 80.4°F and 72.9°F.

Sea water temperature in September, °F

Show year:
2025
2024
2023

The average sea water temperature in September of 2025 was 71.8°F. The highest and lowest sea temperatures during the month were 73.9°F and 70.3°F.

Best time for vacation in Sea Isle City

Sunniest months:
November 18 days
October 15 days
September 15 days
Warmest months:
July 81.1 °F
August 78.9 °F
June 75.0 °F
Warmest sea temp:
July 74.7 °F
August 74.3 °F
September 72.9 °F
Coldest months:
January 40.3 °F
February 42.4 °F
December 44.6 °F
Rainiest months:
July 3 days
March 3 days
April 3 days
Windiest months:
March 11.7 mph
January 11.5 mph
December 11.2 mph

Sea Isle City on a weather map

Sea Isle City
+34°F
E 23 mph
Feels like: +23°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+75°F
+75°F
+66°F
+70°F
+70°F
+70°F
+70°F
+30°F
+79°F
+52°F
+59°F
+57°F
+55°F
+25°F
24 Hours Forecast
Sea Isle City
Local time: 18:26
December 30, tuesday
2100
30°F
E
20 mph
December 31, wednesday
0000
30°F
E
17 mph
0300
28°F
E
17 mph
0600
30°F
E
17 mph
0900
34°F
E
16 mph
1200
39°F
E
17 mph
1500
39°F
E
18 mph
1800
37°F
E
11 mph
Units of measurement: °C / °F