September weather forecastKathleen, FL
September
Weather in September
The first month of the autumn, September, is still a hot month in Kathleen, Florida, with temperature in the range of an average low of 73.4°F (23°C) and an average high of 88.2°F (31.2°C).Temperature
The ushering in of September brings an average high-temperature of a still hot 88.2°F (31.2°C), closely mirroring the 90°F (32.2°C) of August. In Kathleen, the average temperature during the nights of September drops to a moderately hot 73.4°F (23°C).Heat index
The heat index value for September is computed to be a blistering 105.8°F (41°C). Take more caution, heat exhaustion and heat cramps may occur. Long-lasting activity may cause heatstroke.It is worth noting that heat index values are gauged for conditions in the shade and light breezes. With exposure to direct sunshine, the heat index could climb by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'feels like', embodies the combination of air temperature and moisture content to illustrate perceived heat. Factors such as metabolic variation, pregnancy, and physical activity play a role in one's impression of weather. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Kids often lack the knowledge about the necessity to take breaks and consume liquids. Thirst, as a late symptom of dehydration, necessitates the maintenance of hydration, particularly during enduring physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. Increased relative humidity interferes with body cooling by slowing the rate of evaporation, resulting in a slower body cooling rate and a heightened feeling of heat. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
The months with the highest humidity are July through September, with an average relative humidity of 79%.Rainfall
In Kathleen, in September, it is raining for 14.3 days, with typically 0.67" (17mm) of accumulated precipitation. In Kathleen, Florida, during the entire year, the rain falls for 120.1 days and collects up to 9.06" (230mm) of precipitation.Daylight
The average length of the day in September is 12h and 19min.On the first day of September, sunrise is at 7:06 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the ordinary person.Note: A maximum daily UV index of 7 during September morphs into the following directions:
Avert overexposure. Light-skinned people might experience burning in less than 20 minutes. Avoid exposure to the Sun and try to stay in the shade between 10 a.m. and 4 p.m., when UV radiation is most potent, but be aware that parasols or canopies may not offer full protection. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Kathleen, FL
- Average high temperature in September: 88.2°F
The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is January (68.5°F).
- Average low temperature in September: 73.4°F
The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (50.9°F).
Average pressure in September
Kathleen, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Kathleen, FL
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in September
Kathleen, FL
- Average humidity in September: 79%
The months with the highest relative humidity are July, August and September (79%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Kathleen, FL
- Average rainfall in September: 0.67"
The wettest month (with the highest rainfall) is August (1.81").
The driest month (with the least rainfall) is March (0.16").
Average rainfall days in September
Kathleen, FL
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (19.3 days).
The month with the least rainy days is January (4.3 days).
Average daylight in September /
Average sunshine in September
Kathleen, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 54min).
The month with the shortest days is December (Average daylight: 10h and 24min).
- Average sunshine in September: 8h and 42min
The months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in September
Kathleen, FL
- Average sunshine days in September: 12.1 days
The month with the most sunshine days is January (25.3 days).
The month with the least sunshine days is July (7.7 days).
Average UV index in September
Kathleen, FL
- Average UV index in September: 7
The months with the highest UV index are May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Kathleen, FL
- Average cloud cover in September: 34
The month with the most cloud cover is February (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in September
Kathleen, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).





