Kiawah Island Weather in September: Temperature, Precipitation, Wind
Kiawah Island, United States experiences a warm and humid climate in September. The average temperature reaches 24.3°C (75.8°F), with daytime highs climbing to 29.4°C (85.0°F) and nighttime lows dipping to 20.3°C (68.5°F). Heat index values peak at 31.5°C (88.7°F), creating sultry conditions for beachgoers and golfers on the island’s renowned courses.
Humidity levels remain high at 78.9%, contributing to the tropical feel of the island. Precipitation occurs on 11 days throughout the month, with an average of 1.03 inches (26.2 mm) of rainfall. The probability of precipitation stands at 36.7%, and rain covers 5.7% of the day on average. Severe weather risk is moderate at 33.0%.
Wind plays a significant role in Kiawah Island’s September weather. Gusts reach speeds of 30.6 km/h (19 mph), while average wind speeds measure 17.3 km/h (10.7 mph). These breezes provide some relief from the heat and humidity, especially along the 10-mile stretch of pristine beach.
Cloud cover is relatively low at 35.3%, allowing for ample sunshine. The UV index averages a high 8.2, necessitating sun protection for outdoor activities. Visibility extends to 15.4 km (9.6 miles), offering clear views of the Atlantic Ocean and the island’s lush maritime forests.
Atmospheric pressure averages 1016.3 hPa, indicating stable conditions. Sunrise occurs around 7:04 AM, while sunset takes place at approximately 7:26 PM, providing over 12 hours of daylight for visitors to enjoy the island’s natural beauty and recreational offerings.
What is the temperature in Kiawah Island in September?
Average air temperature in Kiawah Island is 24.3°C (75.8°F) in September. The outside temperature in Kiawah Island feels like 25.1°C (77.1°F) on a typical September day. The highest average temperature during sunny days is 29.4°C (85°F) and feels like 31.5°C (88.7°F). The lowest average temperature after dark is 20.3°C (68.5°F) which feels like 20.3°C (68.5°F).
How hot is Kiawah Island in September?
The hot temperature in September in Kiawah Island rises to 34.8°C (94.6°F) on sunny days with low cloud coverage and 78.9% humidity. During hottest days of September it feels like 39.5 °C (103.1°F). The average maximum temp in Kiawah Island is 29.4°C (103.1°F) during day time in September.
How cold is Kiawah Island in September?
The coldest temp in Kiawah Island in September drops to 16.9°C (62.4°F) during the cold nights. With 17.3km/h (10.8mph) winds and 78.9% humidity it feels like 16.9°C (62.4°F) on the coldest nights. The average minimum temperature is 20.3°C (68.5°F) during night time in September.
Does it rain in Kiawah Island in September?
Yes, it rains for 11 days in Kiawah Island, United States in September averaging 1.03 mm of precipitation. Kiawah Island has a 36.7% chance for rain throughout the entire month of September.
How much does it rain in Kiawah Island throughout September?
Kiawah Island has 1.03 mm (0.04 inch) of rain per day on average in September. It rains for an average of 11 days out of the entire month.
Is Kiawah Island windy in September?
The average speed of wind in Kiawah Island, United States during September is 17.3km/h (10.8mph) and average windgust is 30.6km/h (19mph). On some days in September wind can reach up to 28.7km/h (17.8mph).
What is the direction of the wind in Kiawah Island in September?
Most days of September the wind is blowing from Southeast direction in Kiawah Island.
What are the humidity levels in Kiawah Island in September?
The average humidity levels in Kiawah Island in September are 78.9%. Daily humidity levels in Kiawah Island range from 65.9% to 94.6% during September.
How many hours of daylight are in Kiawah Island in September?
Kiawah Island has 12 hours 21 minutes of daylight in September on average. Sunset and sunrise times gradually change throughout the month. Sunrise in Kiawah Island in September is at 7:04:20 and the sunset is at 19:26:12.
What is the cloud coverage in Kiawah Island in September?
Clouds cover 35.3% of the sky on average throughout September in Kiawah Island. The cloud coverage ranges from 0.2% to 98.5% depending on the day of the month.
What is the UV level in September in Kiawah Island?
The average UV index in Kiawah Island is 8.2 in September. UV levels change throughout the month and range from 3 to 10.
What is the solar radiation in Kiawah Island in September?
The average solar radiation is 188.6 W/m2 (Watts per square meter) in Kiawah Island during September. However solar radiation levels change throughout the month and range from 59.6 W/m2 to 272.8 W/m2.
What is the solar energy during September in Kiawah Island?
The average solar energy during September in Kiawah Island is 16.3 MJ/m2 (megajoules per square metre). Solar energy ranges from 5.1 MJ/m2, to 23.8 MJ/m2 during September.
Are there severe weather risks in Kiawah Island in September?
Yes, there is a 33% risk for severe weather in Kiawah Island, United States in September.
What is the air pressure in Kiawah Island in September?
On average the air pressure in Kiawah Island in September is 1016.3 mb (millibars). Throughout the month the sea level pressure ranges from 1010.4 mb to 1021.6 mb.
What is the visibility in Kiawah Island in September?
The average daylight visibility in Kiawah Island in September is 15.4 km (9.6 miles). Depending on the precipitation the visibility ranges from 12.9 km (8 miles) to 15.9 km (9.9 miles) throughout September.
What is the dew point in Kiawah Island in September?
The average dew point in Kiawah Island during September is 20°C (68°F).
Where is the data for Kiawah Island climate in September coming from?
The climate data for Kiawah Island, South Carolina, United States in September is collected from the following weather stations.
- ETV Charleston SC US WEATHERSTEM
- CHARLESTON EXECUTIVE AIRPORT, SC US
- CHARLESTON INTL. AIRPORT, SC US
- MOUNT PLEASANT REGIONAL AIRPORT FASION FIELD, SC US
- FW8019 Mount Pleasant SC US
- KCHS
- KJZI
- KLRO