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
The onset of September marks an average high-temperature of a still hot 87.3°F (30.7°C), hardly differing from August's 90.3°F (32.4°C). In Altha, the average temperature during the nights of September drops to an agreeable 70.2°F (21.2°C).Heat index
For most parts of September, the heat index is calculated to be a fiery hot 102.2°F (39°C). Implement enhanced safety actions, heat cramps and heat exhaustion could occur. Sustained activity might result in heatstroke.Heat index evaluations are typically in the context of light winds and shaded environments. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', binds temperature metrics with humidity values to give a sense of the actual warmth. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Do note, being directly under sun rays can amplify the heat you feel, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Young ones regularly neglect the requirement for rest and fluid replenishment. Thirst is a late stage of dehydration - so, it is necessary to keep hydrated, particularly during extended periods of physical exertion.
To combat high temperatures, the human body perspires and relies on sweat evaporation for cooling. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Heat-related disorders may develop if heat gain in the body overshadows its cooling capacity, leading to elevated temperatures.
Humidity
The months with the highest humidity in Altha are September and December, with an average relative humidity of 78%.Rainfall
In Altha, in September, it is raining for 14.3 days, with typically 1.73" (44mm) of accumulated precipitation. Throughout the year, in Altha, there are 140 rainfall days, and 19.8" (503mm) of precipitation is accumulated.Snowfall
April through December are months without snowfall in Altha.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:17 am and sunset at 7:03 pm. On the last day of September, sunrise is at 6:33 am and sunset at 6:26 pm CDT.
Sunshine
In September, the average sunshine in Altha is 8.7h.UV index
In September, the average daily maximum UV index in Altha, Florida, is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The maximum UV index, 6 during September, leads to the following recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage.
Frequently asked questions
How hot is September in Altha?
What is the most humid month in Altha?
What is the average humidity in September in Altha?
How many days does it rain in September in Altha?
When it does not snow in Altha?
How many hours of daylight does Altha have in September?
When is the sunrise / sunset in September in Altha?
How long on average sun shines in September in Altha?
What is the UV index reading in September in Altha?
Average temperature in September
Altha, FL
- Average high temperature in September: 87.3°F
The warmest month (with the highest average high temperature) is July (90.5°F).
The month with the lowest average high temperature is January (60.4°F).
- Average low temperature in September: 70.2°F
The month with the highest average low temperature is August (74.7°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).
Average pressure in September
Altha, 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
Altha, FL
- Average wind speed in September: 4.7mph
The windiest month (with the highest average wind speed) is March (6.4mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Altha, FL
- Average humidity in September: 78%
The months with the highest relative humidity are September and December (78%).
The month with the lowest relative humidity is May (72%).
Average rainfall in September
Altha, FL
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in September
Altha, FL
- Average rainfall days in September: 14.3 days
The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is November (5 days).
Average snowfall days in September
Altha, FL
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January, February and March (0.1 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in September /
Average sunshine in September
Altha, FL
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 8h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 24min).
Average sunshine days in September
Altha, FL
- Average sunshine days in September: 14.3 days
The month with the most sunshine days is November (23.6 days).
The month with the least sunshine days is July (7.6 days).
Average UV index in September
Altha, 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 3).
Average cloud cover in September
Altha, FL
- Average cloud cover in September: 31
The month with the most cloud cover is December (Cloud cover 44).
The months with the least cloud cover are May and October (Cloud cover 28).
Average visibility in September
Altha, FL
- Average visibility in September: 6mi
The months with the highest visibility are January, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are February and December (5mi).
Altha, Florida, USA
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