September weather forecastAlcoma, FL
September
Weather in September
The first month of the autumn, September, is still a hot month in Alcoma, Florida, with an average temperature fluctuating between 73.9°F (23.3°C) and 87.8°F (31°C).Temperature
An average high-temperature of a still tropical 87.8°F (31°C) marks September, exhibiting a close resemblance to the conditions in August. The average temperature during September nights dips to a warm 73.9°F (23.3°C).Heat index
For most parts of September, the heat index is evaluated at a blistering 105.8°F (41°C). Take more preventive steps, risk of heat exhaustion and heat cramps is elevated. Long activity may culminate in heatstroke.Note that heat index values are valued for light wind and location in the shade. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is the outcome of merging air's temperature and its humidity metrics. This effect is subjective, differing among individuals based on their physical activity and perception of heat, which can be influenced by factors like wind, clothing, and metabolic variances. Awareness of direct sun exposure is crucial as it has the potential to heighten the weather's effects, pushing up the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. Children often overlook the need for breaks and fluid intake. Thirst is a late-stage sign of dehydration - hence, it is necessary to stay hydrated, especially during extended periods of physical activities.
Perspiration is essential for the human body; it facilitates cooling through the process of sweat evaporation. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.
Humidity
With an average relative humidity of 80%, September is the most humid month.Rainfall
In Alcoma, in September, during 23.9 rainfall days, 4.53" (115mm) of precipitation is typically accumulated. Throughout the year, there are 205 rainfall days, and 41.3" (1049mm) of precipitation is accumulated.Daylight
In Alcoma, 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 7:46 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:12 pm EDT.
Sunshine
In September, the average sunshine is 8.7h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index reading of 6 to 7 represents a high health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: The maximum UV index of 7 during September leads to these instructions:
Embrace precautions and observe sun safety norms. Evasion of sunburn is a necessity. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Alcoma, FL
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (69.4°F).
- Average low temperature in September: 73.9°F
The month with the highest average low temperature is August (75.9°F).
The coldest month (with the lowest average low temperature) is January (51.8°F).
Average pressure in September
Alcoma, 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
Alcoma, FL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is January (6.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in September
Alcoma, FL
- Average humidity in September: 80%
The month with the highest relative humidity is September (80%).
The month with the lowest relative humidity is March (71%).
Average rainfall in September
Alcoma, FL
- Average rainfall in September: 4.53"
The wettest month (with the highest rainfall) is July (7.2").
The driest month (with the least rainfall) is March (1.3").
Average rainfall days in September
Alcoma, FL
- Average rainfall days in September: 23.9 days
The month with the highest number of rainy days is July (28.4 days).
The month with the least rainy days is January (9 days).
Average daylight in September /
Average sunshine in September
Alcoma, FL
- Average daylight in September: 12h and 18min
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 42min
The months with the most sunshine are May and July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).
Average sunshine days in September
Alcoma, FL
- Average sunshine days in September: 5.3 days
The month with the most sunshine days is January (20 days).
The month with the least sunshine days is July (1.7 days).
Average UV index in September
Alcoma, 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
Alcoma, FL
- Average cloud cover in September: 33
The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 29).
Average visibility in September
Alcoma, 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).





