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 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
In Harker, September's average high-temperature stands at a still tropical 88.9°F (31.6°C), closely related to the preceding month. An average low-temperature of 75°F (23.9°C) is expected during September.Heat index
The heat index value during September is calculated to be a blistering 109.4°F (43°C). Attention: Heat exhaustion and heat cramps are anticipated. Prolonged effort can result in heatstroke.Take note of the fact that heat index values are based on shaded circumstances with light airflows. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', shows a temperature sensation when both heat and moisture conditions are combined. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. When exposed to direct sunlight, it's possible for the heat index to increase by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Youngsters frequently overlook the need for breaks and fluid intake. Thirst is an advanced sign of dehydration - thereby highlighting the importance of keeping hydrated, particularly during long physical activities.
One way the human body deals with excessive warmth is by perspiring and allowing sweat to evaporate. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. When body temperature rises due to an imbalance in heat gain, there's a potential for dehydration and overheating.
Humidity
With an average relative humidity of 79%, September is the most humid month.Rainfall
In Harker, in September, it is raining for 22.3 days, with typically 3.7" (94mm) of accumulated precipitation. In Harker, during the entire year, the rain falls for 192.1 days and collects up to 30.24" (768mm) of precipitation.Daylight
The average length of the day in September is 12h and 18min.On the first day of the month, sunrise is at 7:05 am and sunset at 7:44 pm. On the last day of September, in Harker, Florida, sunrise is at 7:17 am and sunset at 7:12 pm EDT.
Sunshine
The average sunshine in September is 8.8h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for the average person.Note: An average UV index of 7 in September transforms into this advice:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
How hot is it in Harker in September?
What is the most humid month in Harker?
What is the average humidity in September in Harker?
How much does it rain in Harker in September?
What is the average length of the day in September in Harker?
When is the sunrise / sunset in September in Harker?
How long on average sun shines in September in Harker?
When is the highest UV index in Harker?
How high is the UV index in September in Harker?
Average temperature in September
Harker, FL
- Average high temperature in September: 88.9°F
The warmest month (with the highest average high temperature) is August (90.7°F).
The month with the lowest average high temperature is January (72.7°F).
- Average low temperature in September: 75°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (55.6°F).
Average pressure in September
Harker, FL
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in September
Harker, FL
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is March (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in September
Harker, 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 (70%).
Average rainfall in September
Harker, FL
- Average rainfall in September: 3.7"
The wettest month (with the highest rainfall) is August (5.75").
The driest month (with the least rainfall) is January (0.75").
Average rainfall days in September
Harker, FL
- Average rainfall days in September: 22.3 days
The month with the highest number of rainy days is July (24.7 days).
The month with the least rainy days is January (8.8 days).
Average daylight in September /
Average sunshine in September
Harker, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The months with the least sunshine are November and December (Average sunshine: 6h and 24min).
Average sunshine days in September
Harker, FL
- Average sunshine days in September: 6.2 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is July (5.1 days).
Average UV index in September
Harker, 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 months with the lowest UV index are January, February, November and December (UV index 5).
Average cloud cover in September
Harker, FL
- Average cloud cover in September: 33
The months with the most cloud cover are January, September and December (Cloud cover 33).
The months with the least cloud cover are March, April and May (Cloud cover 28).
Average visibility in September
Harker, 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).
Harker, Florida, USA
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