Kiawah Island Weather: September
 |
Average Day Temperature: | 86.1°F |
|
Average Night Temperature: | 75.3°F |
|
Sea Water Temperature: | 84.5°F |
|
Number of Sunny Days: | 12 days |
| Sunshine Hours: | 11.9 - 12.8 hours | |
|
Number of Rainy Days: | 2 days |
| Precipitation Totals: | 1.2 in | |
| detailed information | ||
forecast
| Kiawah Island |
Temperature
| Kiawah Island |
Air Temperature in September, °F
The highest day temperature in September 2025 was 93°F. The lowest night temperature was 71°F. The average values for day and night temperatures during September were 85.7°F и 75.7°F respectivly.
Kiawah Island Water Sea Temperature in September, °F
The average sea surface temperature in September 2025 for Kiawah Island was 82.5°F. The maximum and minimum values were 79.4°F and 84.8°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 Kiawah Island is 1.2 in.
The average wind speed in September is 7.7 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 Kiawah Island in September is 7.5 hours.
Kiawah Island on the Weather Map
| Chicago |  |
+42 |
| Hawaii |  |
+74 |
| Honolulu | |
+74 |
| Houston |  |
+74 |
| Las Vegas |  |
+36 |
| Los Angeles | |
+42 |
| Maui | |
+68 |
| Miami | |
+76 |
| Miami Beach | |
+78 |
| New York | |
+38 |
| San Diego | |
+46 |
| San Francisco | |
+42 |
| Sarasota | |
+68 |
| Tampa | |
+68 |
| Washington |  |
+36 |
| 1200 |  |
60°F | NE 6 mph |
| 1500 | |
60°F | N 7 mph |
| 1800 | |
62°F | N 6 mph |
| 2100 | |
62°F | N 7 mph |
| 0000 | |
60°F | N 8 mph |
| 0300 | |
60°F | N 11 mph |
| 0600 | |
62°F | N 11 mph |
| 0900 | |
64°F | N 13 mph |