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
In September, the average high-temperature is relatively the same as in August - a still tropical 87.4°F (30.8°C). The average low-temperature, in Freeport, Florida, is 71.2°F (21.8°C).Heat index
In September, the average heat index is estimated at a very hot 100.4°F (38°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel', 'apparent temperature', 'feels like', or 'felt air temperature', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors like activity, metabolic differences, clothing, and wind affect individual temperature impact. Be aware that direct exposure to sunlight increases heat impact and may raise the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. When the relative humidity is high, the evaporation rate is reduced. The warmth is removed from the body at a lower rate, causing the body to retain more heat than it would in dry air. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.
Humidity
In Freeport, the average relative humidity in September is 74%.Rainfall
In Freeport, it is raining for 15.5 days, with typically 1.22" (31mm) of accumulated precipitation. In Freeport, during the entire year, the rain falls for 145 days and collects up to 17.91" (455mm) of precipitation.Snowfall
February through December are months without snowfall in Freeport.Daylight
The average length of the day in September in Freeport is 12h and 20min.On the first day of the month, sunrise is at 6:21 am and sunset at 7:07 pm. On the last day of September, sunrise is at 6:37 am and sunset at 6:31 pm CDT.
Sunshine
The average sunshine in September is 9.2h.UV index
In Freeport, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV rays for the ordinary person.Note: The average daily UV index of 6 in September transform into the following instructions:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun.
FAQ
What is the temperature in September in Freeport?
What is the average humidity in September in Freeport?
How much does it rain in Freeport in September?
When it does not snow in Freeport?
How many hours of daylight does Freeport have in September?
When is the sunrise / sunset in September in Freeport?
How many hours of sunshine does Freeport have in September?
What is the UV index intensity in September in Freeport?
Average temperature in September
Freeport, FL
- Average high temperature in September: 87.4°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (59.4°F).
- Average low temperature in September: 71.2°F
The month with the highest average low temperature is August (75.6°F).
The coldest month (with the lowest average low temperature) is January (43.3°F).
Average pressure in September
Freeport, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Freeport, FL
- Average wind speed in September: 5.1mph
The windiest months (with the highest average wind speed) are January, February and March (7mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in September
Freeport, FL
- Average humidity in September: 74%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are May and October (70%).
Average rainfall in September
Freeport, FL
- Average rainfall in September: 1.22"
The wettest month (with the highest rainfall) is August (2.95").
The driest months (with the least rainfall) are January and November (0.83").
Average rainfall days in September
Freeport, FL
- Average rainfall days in September: 15.5 days
The month with the highest number of rainy days is August (21.3 days).
The month with the least rainy days is November (6.8 days).
Average snowfall in September
Freeport, 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
Freeport, FL
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in September /
Average sunshine in September
Freeport, FL
- Average daylight in September: 12h and 20min
The month with the longest days is June (Average daylight: 14h and 5min).
The month with the shortest days is December (Average daylight: 10h and 13min).
- Average sunshine in September: 9h and 12min
The month with the most sunshine is June (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 24min).
Average sunshine days in September
Freeport, FL
- Average sunshine days in September: 11.7 days
The month with the most sunshine days is November (21.8 days).
The months with the least sunshine days are July and August (6.3 days).
Average UV index in September
Freeport, FL
- Average UV index in September: 6
The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Freeport, FL
- Average cloud cover in September: 26
The months with the most cloud cover are February and December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 24).
Average visibility in September
Freeport, 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).
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