September weather forecastBonnie, FL
September
Weather in September
September, the first month of the autumn in Bonnie, is still a tropical month, with temperature in the range of an average low of 73.6°F (23.1°C) and an average high of 88.2°F (31.2°C).Temperature
September's average high-temperature is a still hot 88.2°F (31.2°C), maintaining a close comparison with August's 90°F (32.2°C). In the month of September, the temperature generally rests at an average low of 73.6°F (23.1°C).Heat index
The average heat index in September is calculated to be an extremely hot 105.8°F (41°C). Take extra safety measures to prevent heat exhaustion and heat cramps. Heatstroke could follow lengthy activity.It is emphasized that the heat index's values are meant for shaded zones with mild winds. With direct sunlight, the heat index could increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. Awareness is key; direct sunlight can enhance the weather's impact, possibly boosting the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are of high significance for children. Young ones often do not realize the necessity to rest and replenish their fluids. Thirst is a delayed indication of dehydration - keeping hydrated, particularly in prolonged physical activity, is crucial.
Sweat evaporation plays a crucial role in cooling the human body, a process enabled by perspiration. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Accumulating heat beyond the body's cooling measures leads to rising temperatures and potential ailments.
Humidity
August and September, with an average relative humidity of 79%, are the most humid months.Rainfall
In Bonnie, in September, it is raining for 20.6 days, with typically 3.98" (101mm) of accumulated precipitation. In Bonnie, during the entire year, the rain falls for 189 days and collects up to 36.54" (928mm) of precipitation.Daylight
In Bonnie, Florida, 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 in Bonnie, Florida, is 8.6h.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 hazard from unsafe exposure to UV radiation for the average person.Note: A maximum UV index of 7 in September translates into the following recommendations:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Bonnie, 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 (68.9°F).
- Average low temperature in September: 73.6°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 (51.1°F).
Average pressure in September
Bonnie, 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
Bonnie, FL
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Bonnie, FL
- Average humidity in September: 79%
The months with the highest relative humidity are August and September (79%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Bonnie, FL
- Average rainfall in September: 3.98"
The wettest month (with the highest rainfall) is August (6.89").
The driest months (with the least rainfall) are January and November (1.18").
Average rainfall days in September
Bonnie, FL
- Average rainfall days in September: 20.6 days
The month with the highest number of rainy days is July (26.8 days).
The month with the least rainy days is January (9.1 days).
Average daylight in September /
Average sunshine in September
Bonnie, 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 36min
The month with the most sunshine is May (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Bonnie, FL
- Average sunshine days in September: 7.8 days
The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (2.9 days).
Average UV index in September
Bonnie, 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
Bonnie, FL
- Average cloud cover in September: 35
The months with the most cloud cover are February and December (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in September
Bonnie, 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).
