September weather forecastWhitney, FL
September
Weather in September
September, the first month of the autumn in Whitney, is still a hot month, with an average temperature fluctuating between 72.7°F (22.6°C) and 88.2°F (31.2°C).Temperature
With September's advent, Whitney, Florida, sees an average high-temperature of a still tropical 88.2°F (31.2°C), subtly shifted from August's 90.1°F (32.3°C). During September, the temperature in Whitney, Florida, is averaged to a low of 72.7°F (22.6°C) at night.Heat index
For most parts of September, the heat index is calculated to be a scorching 105.8°F (41°C). Use additional protective measures, heat cramps and heat exhaustion are possible outcomes. Continuous activity might lead to heatstroke.Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'real feel' or 'feels like', is an estimation of the warmth sensation when considering humidity levels. The influence of weather can be personal, changing with an individual's body mass, height, and level of physical exertion. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Children often do not understand the need to rest and hydrate. Thirst is a late manifestation of dehydration - therefore, it is essential to stay hydrated, particularly during prolonged physical activities.
The human body cools itself through perspiration, as excessive warmth is removed from the body through sweat evaporation. Relative humidity in excess curtails evaporation, therefore reducing heat dissipation from the body, leading to feelings of excess heat. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
July through September, with an average relative humidity of 79%, are the most humid months.Rainfall
In Whitney, Florida, in September, during 13.6 rainfall days, 0.71" (18mm) of precipitation is typically accumulated. Throughout the year, there are 130.4 rainfall days, and 11.26" (286mm) of precipitation is accumulated.Daylight
In September, the average length of the day 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
The average sunshine in September is 8.8h.UV index
In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for average individuals.Note: A maximum high daily UV index of 6 during September translates into the following directions:
Evade overexposure. Individuals with fair skin risk burning in under 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Whitney, FL
- Average high temperature in September: 88.2°F
The warmest months (with the highest average high temperature) are July and August (90.1°F).
The month with the lowest average high temperature is January (67.1°F).
- Average low temperature in September: 72.7°F
The month with the highest average low temperature is August (75.2°F).
The coldest month (with the lowest average low temperature) is January (48.9°F).
Average pressure in September
Whitney, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Whitney, FL
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in September
Whitney, 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
Whitney, FL
- Average rainfall in September: 0.71"
The wettest month (with the highest rainfall) is July (2.2").
The driest month (with the least rainfall) is March (0.28").
Average rainfall days in September
Whitney, FL
- Average rainfall days in September: 13.6 days
The month with the highest number of rainy days is July (19.1 days).
The month with the least rainy days is November (6 days).
Average daylight in September /
Average sunshine in September
Whitney, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 48min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Whitney, FL
- Average sunshine days in September: 12.8 days
The month with the most sunshine days is January (23.6 days).
The month with the least sunshine days is July (7.5 days).
Average UV index in September
Whitney, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Whitney, FL
- Average cloud cover in September: 33
The months with the most cloud cover are February and December (Cloud cover 37).
The months with the least cloud cover are May and October (Cloud cover 29).
Average visibility in September
Whitney, 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).
