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
Sanford starts September with an average high-temperature of a still tropical 88.3°F (31.3°C), hinting at a minimal fluctuation from August. Sanford's September nights cool down to an average low-temperature of 74.3°F (23.5°C).Heat index
The heat index for September is computed to be an extremely hot 105.8°F (41°C). Extra safeguards are necessary to prevent heat exhaustion and heat cramps. Prolonged activity might cause heatstroke.In reference to the heat index, it's for places in shade and with a slight wind. The direct sun can potentially cause the heat index to increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are especially crucial for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. An increase in relative humidity disrupts body cooling by slowing the evaporation rate, thereby reducing the rate at which the body cools and amplifying the sense of heat. Should the body fail to balance its heat gain, the escalating temperature poses health challenges.
Humidity
The months with the highest humidity are August and September, with an average relative humidity of 77%.Rainfall
In Sanford, in September, during 20.6 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. Throughout the year, there are 187.2 rainfall days, and 30.87" (784mm) of precipitation is accumulated.Snowfall
In Sanford, snow does not fall in February through December.Daylight
In Sanford, the average length of the day in September is 12h and 19min.On the first day of September, sunrise is at 7:03 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:11 pm EDT.
Sunshine
The average sunshine in September is 8.9h.UV index
The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: An average UV index of 6 in September transforms into this advice:
Stick with precautions and abide by sun safety procedures. Evading sunburn is essential. Stay in the shade and limit sun exposure from 10 a.m. to 4 p.m., when UV radiation is most potent. Keep in mind that shade structures like parasols or canopies do not offer full protection. 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 is the most humid month?
What is the average humidity in September in Sanford?
How many days does it rain in September?
When it does not snow?
What is the average length of the day 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
Sanford, FL
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (67.8°F).
- Average low temperature in September: 74.3°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 (51.4°F).
Average pressure in September
Sanford, 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
Sanford, FL
- Average wind speed in September: 5.2mph
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
Sanford, FL
- Average humidity in September: 77%
The months with the highest relative humidity are August and September (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Sanford, FL
- Average rainfall in September: 3.62"
The wettest month (with the highest rainfall) is August (4.84").
The driest month (with the least rainfall) is March (1.18").
Average rainfall days in September
Sanford, FL
- Average rainfall days in September: 20.6 days
The month with the highest number of rainy days is August (24.1 days).
The month with the least rainy days is January (10.1 days).
Average snowfall in September
Sanford, 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
Sanford, 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
Sanford, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in September: 8h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).
Average sunshine days in September
Sanford, FL
- Average sunshine days in September: 6 days
The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is July (3.8 days).
Average UV index in September
Sanford, 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
Sanford, FL
- Average cloud cover in September: 30
The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 27).
Average visibility in September
Sanford, 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).
Sanford, Florida, USA
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