Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Istachatta observes an average high-temperature of a still tropical 88.2°F (31.2°C) in September, barely different from 90.1°F (32.3°C) in August. Istachatta observes an average nighttime low-temperature of 72.9°F (22.7°C) during the month of September.Heat index
The average heat index in September is appraised at a blistering 105.8°F (41°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.Heat index guidelines indicate values are for light wind scenarios and shaded regions. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'feels like', is a value derived by merging air temperature with the humidity to convey how the climate feels. This effect is personal, influenced by the individual's physical activity and heat sensitivity, shaped by factors including wind, attire, and metabolic variations. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical for babies and toddlers. Typically, children face more danger than adults as they usually perspire less. Their larger skin surface relative to their small bodies and increased heat output from their activities enhance their risk.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Overheating and potential dehydration arise when body heat gain eclipses its release capability.
Humidity
With an average relative humidity of 79%, September is the most humid month.Rainfall
In Istachatta, in September, it is raining for 18.8 days, with typically 1.97" (50mm) of accumulated precipitation. Throughout the year, there are 160.2 rainfall days, and 21.81" (554mm) of precipitation is accumulated.Snowfall
February through December are months without snowfall.Daylight
In September, the average length of the day in Istachatta is 12h and 19min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:50 pm. On the last day of September, in Istachatta, sunrise is at 7:21 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September in Istachatta, Florida, is 8.9h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for ordinary individuals.Note: In September, an average UV index of 7 transforms into the following instructions:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Avoid direct sunlight between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. Keep in mind that shade structures may not provide complete protection. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Frequently asked questions
How hot is it in Istachatta in September?
What is the most humid month in Istachatta?
What is the average humidity in September in Istachatta?
How many days does it rain in September in Istachatta?
When it does not snow in Istachatta?
How many hours of daylight does Istachatta have in September?
What time are sunrise and sunset in September in Istachatta?
How many hours of sunshine does Istachatta have in September?
What are the months with the highest UV index in Istachatta?
What is the UV index reading in September in Istachatta?
Average temperature in September
Istachatta, FL
- Average high temperature in September: 88.2°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (67.1°F).
- Average low temperature in September: 72.9°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 (49.3°F).
Average pressure in September
Istachatta, 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
Istachatta, FL
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Istachatta, FL
- Average humidity in September: 79%
The month with the highest relative humidity is September (79%).
The month with the lowest relative humidity is March (72%).
Average rainfall in September
Istachatta, FL
- Average rainfall in September: 1.97"
The wettest month (with the highest rainfall) is July (3.82").
The driest month (with the least rainfall) is March (0.67").
Average rainfall days in September
Istachatta, FL
- Average rainfall days in September: 18.8 days
The month with the highest number of rainy days is July (23.3 days).
The month with the least rainy days is January (6.9 days).
Average snowfall in September
Istachatta, FL
- Average snowfall in September: 0"
The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in September
Istachatta, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Istachatta, FL
- Average daylight in September: 12h and 2min
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 5min
The months with the most sunshine are May and July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).
Average sunshine days in September
Istachatta, FL
- Average sunshine days in September: 8.3 days
The month with the most sunshine days is January (22 days).
The month with the least sunshine days is August (5 days).
Average UV index in September
Istachatta, 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
Istachatta, FL
- Average cloud cover in September: 30
The months with the most cloud cover are February and December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 26).
Average visibility in September
Istachatta, 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).
Istachatta, Florida, USA
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