Oak Island Weather: September
 |
Average Day Temperature: | 83.7°F |
|
Average Night Temperature: | 74.5°F |
|
Sea Water Temperature: | 83.7°F |
|
Number of Sunny Days: | 12 days |
| Sunshine Hours: | 11.9 - 12.9 hours | |
|
Number of Rainy Days: | 4 days |
| Precipitation Totals: | 1.8 in | |
| detailed information | ||
forecast
| Oak Island |
Temperature
| Oak Island |
Air Temperature in September, °F
The highest day temperature in September 2025 was 90°F. The lowest night temperature was 64°F. The average values for day and night temperatures during September were 82.9°F и 73.0°F respectivly.
Oak Island Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Oak Island was 81.6°F. The maximum and minimum values were 78.2°F and 84.6°F respectively.
You can expect various weather conditions during September. Be ready for sunny, cloudy or even gloomy days.
Precipitation Totals in September, in
Precipitation total in September for Oak Island is 1.8 in. It makes september one of the most rainy months of the year.
The average wind speed in September is 8.9 mph. This value is relatively stable throughout the year.
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 Oak Island in September is 7.0 hours.
Oak Island 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 | |
+18 |
| San Diego | |
+54 |
| San Francisco | |
+46 |
| Sarasota | |
+62 |
| Tampa | |
+62 |
| Washington | |
+28 |
| 0600 |  |
48°F | S 5 mph |
| 0900 | |
48°F | SW 6 mph |
| 1200 | |
48°F | SW 6 mph |
| 1500 | |
46°F | S 8 mph |
| 1800 | |
44°F | S 8 mph |
| 2100 |  |
42°F | SE 9 mph |
| 0000 | |
42°F | S 7 mph |
| 0300 | |
42°F | S 6 mph |