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
Entering September, the average high-temperature is recorded at a still tropical 88°F (31.1°C), exhibiting a minimal shift from August's 90.5°F (32.5°C). Holopaw observes an average nighttime temperature of 74.1°F (23.4°C) during September.Heat index
The heat index value for September is evaluated at an extremely hot 105.8°F (41°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.Realize that the values for the heat index are set for shaded places and light winds. Direct sunlight might lead to a heat index increase by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', represents the fusion of temperature and moisture in the air to suggest how warm it feels. Elements such as metabolic variations, pregnancy, and physical exertion can influence one's weather perception. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially vital to children. Young individuals are typically more threatened than adults due to their reduced perspiration. Also, the larger skin surface proportionate to their small bodies and the increased heat from their activities magnify their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. Under conditions of high temperature and humidity (enhanced heat index), sweat production is compromised, exacerbating the sensation of warmth. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
August and September, with an average relative humidity of 79%, are the most humid months.Rainfall
In Holopaw, Florida, in September, it is raining for 19.6 days, with typically 2.2" (56mm) of accumulated precipitation. Throughout the year, there are 175 rainfall days, and 21.85" (555mm) of precipitation is accumulated.Daylight
In September, the average length of the day is 12h and 19min.On the first day of the month, sunrise is at 7:03 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:11 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 value of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV rays for average individuals.Note: The maximum daily UV index of 7 in September interprets into the following recommendations:
Shun overexposure. Protection from sun ravages is indispensable. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot does it get in September?
What are the most humid months?
What is the average humidity in September?
How many days does it rain in September?
What is the average length of the day in September?
When is the sunrise / sunset in September?
How many hours of sunshine does Holopaw have in September?
When is the highest UV index?
How high is the UV index in September in Holopaw?
Average temperature in September
Holopaw, FL
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (90.5°F).
The month with the lowest average high temperature is January (69.3°F).
- Average low temperature in September: 74.1°F
The month with the highest average low temperature is August (76.1°F).
The coldest month (with the lowest average low temperature) is January (52.3°F).
Average pressure in September
Holopaw, 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
Holopaw, FL
- Average wind speed in September: 5.2mph
The windiest months (with the highest average wind speed) are January, March and April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in September
Holopaw, 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
Holopaw, FL
- Average rainfall in September: 2.2"
The wettest month (with the highest rainfall) is August (3.58").
The driest month (with the least rainfall) is March (0.59").
Average rainfall days in September
Holopaw, FL
- Average rainfall days in September: 19.6 days
The month with the highest number of rainy days is August (24.3 days).
The month with the least rainy days is January (8.8 days).
Average daylight in September /
Average sunshine in September
Holopaw, 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 month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Holopaw, FL
- Average sunshine days in September: 6.6 days
The month with the most sunshine days is January (19.4 days).
The month with the least sunshine days is August (3.8 days).
Average UV index in September
Holopaw, 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
Holopaw, FL
- Average cloud cover in September: 30
The months with the most cloud cover are January, February and December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 28).
Average visibility in September
Holopaw, 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).
Holopaw, Florida, USA
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