Sea Isle City Weather: September
 |
Average Day Temperature: | 76.2°F |
|
Average Night Temperature: | 68.5°F |
|
Sea Water Temperature: | 75.4°F |
|
Number of Sunny Days: | 15 days |
| Sunshine Hours: | 11.8 - 13.0 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 1.1 in | |
| detailed information | ||
forecast
| Sea Isle City |
Temperature
| Sea Isle City |
Air Temperature in September, °F
The highest day temperature in September 2025 was 82°F. The lowest night temperature was 58°F. The average values for day and night temperatures during September were 75.2°F и 68.7°F respectivly.
Sea Isle City Water Sea Temperature in September, °F
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.
Most of the days in September are sunny but you can also expect cloudy and gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Sea Isle City is 1.1 in.
The average wind speed in September is 9.9 mph. It makes September one of the most windless months of the year for Sea Isle City.
We are using day length and cloud cover information for each day of the month to calculate averages for this chart. Average sunny hours for Sea Isle City in September is 7.7 hours.
Sea Isle City on the Weather Map
| Chicago |  |
-2 |
| Hawaii | |
+78 |
| Honolulu | |
+78 |
| Houston | |
+44 |
| Las Vegas |  |
+40 |
| Los Angeles | |
+52 |
| Maui | |
+72 |
| Miami | |
+72 |
| Miami Beach |  |
+80 |
| New York | |
+20 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0600 |  |
28°F | SW 7 mph |
| 0900 |  |
26°F | SW 6 mph |
| 1200 |  |
30°F | W 6 mph |
| 1500 | |
34°F | W 6 mph |
| 1800 | |
36°F | SW 4 mph |
| 2100 | |
36°F | SW 4 mph |
| 0000 | |
36°F | S 6 mph |
| 0300 | |
36°F | S 7 mph |