September weather forecastOna, FL
September
Weather in September
September, the first month of the autumn in Ona, is still a tropical month, with an average temperature varying between 88°F (31.1°C) and 73.8°F (23.2°C).Temperature
The advent of September signifies a minor shift to an average high-temperature of a still hot 88°F (31.1°C), aligning closely with August. In September, Ona experiences a temperature dip to an average of 73.8°F (23.2°C) at night.Heat index
During September, the heat index is appraised at a scorching 107.6°F (42°C). Ensure heightened precautions, risk of heat cramps and heat exhaustion is significant. Sustained activity could provoke heatstroke.It is essential to grasp that the heat index's numbers are for shade and light wind settings. Being under direct sunlight might amplify the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an indicator that blends the effects of temperature and humidity to depict perceived warmth. An individual's perception of weather can be influenced by a variety of factors including metabolic differences, being pregnant, and their degree of physical exertion. With the sun shining directly, it's crucial to understand that it can increase the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Children frequently underestimate the necessity to rest and hydrate. Thirst is a late sign of dehydration - thus, it is vital to stay hydrated, particularly during lengthy physical exercises.
The natural method the human body uses to remove excess heat is by perspiring and letting sweat evaporate. Under high air temperature coupled with high humidity (high heat index), the body's perspiration is reduced, intensifying the sensation of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
With an average relative humidity of 81%, September is the most humid month.Rainfall
In Ona, in September, it is raining for 21 days, with typically 2.32" (59mm) of accumulated precipitation. Throughout the year, there are 175.4 rainfall days, and 22.8" (579mm) of precipitation is accumulated.Daylight
The average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:20 am and sunset at 7:14 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index estimate of 6 to 7 represents a high health hazard from unsafe exposure to UV radiation for average individuals.Note: The UV index of 7 in September translates into these instructions:
Ward off overexposure. Defence against solar harm is crucial. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Ona, FL
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (89.8°F).
The month with the lowest average high temperature is January (70.3°F).
- Average low temperature in September: 73.8°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (52.3°F).
Average pressure in September
Ona, FL
- Average pressure in September: 29.96"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).
Average wind speed in September
Ona, FL
- Average wind speed in September: 5.3mph
The windiest months (with the highest average wind speed) are January and March (7.1mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Ona, FL
- Average humidity in September: 81%
The month with the highest relative humidity is September (81%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Ona, FL
- Average rainfall in September: 2.32"
The wettest month (with the highest rainfall) is August (4.06").
The driest month (with the least rainfall) is February (0.59").
Average rainfall days in September
Ona, FL
- Average rainfall days in September: 21 days
The month with the highest number of rainy days is August (24.8 days).
The months with the least rainy days are January and February (7.8 days).
Average daylight in September /
Average sunshine in September
Ona, 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 48min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in September
Ona, FL
- Average sunshine days in September: 6.4 days
The month with the most sunshine days is January (21 days).
The months with the least sunshine days are June and August (4.8 days).
Average UV index in September
Ona, 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
Ona, FL
- Average cloud cover in September: 34
The months with the most cloud cover are January, February, September and December (Cloud cover 34).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in September
Ona, FL
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, May, June, July, August, October, November and December (6mi).
The month with the lowest visibility is September (5mi).
