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 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
Apopka starts September with an average high-temperature of a still tropical 88.7°F (31.5°C), a minor shift from August's 91°F (32.8°C). In the month of September, the nighttime temperature dips to a steady average of 74.1°F (23.4°C).Heat index
In September, the average heat index is evaluated at an extremely hot 105.8°F (41°C). Adopt extra safety steps, risk of heat exhaustion and heat cramps is notable. Sustained activity might cause heatstroke.Observations indicate that the heat index values are for shady locations with light wind. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', comes about by integrating the temperature readings with the humidity levels. The effect is experienced differently by individuals, hinging on unique characteristics such as body mass, stature, and level of activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.
Humidity
July through September, with an average relative humidity of 77%, are the most humid months.Rainfall
In Apopka, during September, the rain falls for 23.6 days and regularly aggregates up to 4.53" (115mm) of precipitation. In Apopka, during the entire year, the rain falls for 195.8 days and collects up to 37.68" (957mm) of precipitation.Snowfall
February through December are months without snowfall.Daylight
In Apopka, the average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 7:04 am and sunset at 7:47 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:12 pm EDT.
Sunshine
In Apopka, the average sunshine in September is 8.5h.UV index
The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Adhere to precautions and respect sun safety doctrines. Avoiding sunburn is vital. Minimize exposure to direct sunlight and seek shade from 10 a.m. to 4 p.m., when UV radiation is most intense, but remember that shade structures may not offer complete protection. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is it in September?
What is the most humid month?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
How many hours of daylight does Apopka have in September?
When is the sunrise / sunset in September?
How long on average sun shines in September?
What is the UV index intensity in September?
Average temperature in September
Apopka, FL
- Average high temperature in September: 88.7°F
The warmest months (with the highest average high temperature) are July and August (91°F).
The month with the lowest average high temperature is January (67.6°F).
- Average low temperature in September: 74.1°F
The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (50.5°F).
Average pressure in September
Apopka, 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
Apopka, FL
- Average wind speed in September: 5mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.6mph).
Average humidity in September
Apopka, FL
- Average humidity in September: 77%
The months with the highest relative humidity are July, August and September (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Apopka, FL
- Average rainfall in September: 4.53"
The wettest months (with the highest rainfall) are July and August (6.14").
The driest month (with the least rainfall) is March (1.38").
Average rainfall days in September
Apopka, FL
- Average rainfall days in September: 23.6 days
The month with the highest number of rainy days is August (27 days).
The month with the least rainy days is January (9.8 days).
Average snowfall days in September
Apopka, 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
Apopka, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The months with the least sunshine are November and December (Average sunshine: 6h and 6min).
Average sunshine days in September
Apopka, FL
- Average sunshine days in September: 4.9 days
The month with the most sunshine days is January (18.8 days).
The month with the least sunshine days is August (2.6 days).
Average UV index in September
Apopka, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).
Average cloud cover in September
Apopka, FL
- Average cloud cover in September: 33
The months with the most cloud cover are January and February (Cloud cover 38).
The month with the least cloud cover is May (Cloud cover 30).
Average visibility in September
Apopka, 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).
Apopka, Florida, USA
Weather forecast for your location
2. Allow the app to use your location