September weather forecastPennichaw, FL
September
Weather in September
September, the first month of the autumn in Pennichaw, is still a hot month, with an average temperature varying between 75°F (23.9°C) and 88°F (31.1°C).Temperature
The initiation of September records an average high-temperature of a still tropical 88°F (31.1°C), displaying a near consistency with the previous month. During September, the average low-temperature is recorded at a moderately hot 75°F (23.9°C).Heat index
For most parts of September, the heat index is calculated to be an extremely hot 104°F (40°C). Incorporate additional preventive steps, heat exhaustion and heat cramps are possible. Long-lasting activity may cause heatstroke.The standards for the heat index are set for locations in shade and under light breezes. If exposed to direct sunlight, the heat index could climb by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is an estimation of the warmth sensation when considering humidity levels. A person's impression of weather can be affected by numerous aspects, among them metabolic variations, pregnancy, and activity levels. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children often fail to understand the importance of rest and rehydration. Thirst is a late manifestation of dehydration - hence, it is crucial to stay hydrated, especially during ongoing physical activities.
Evaporating sweat is a key way the human body dispels excessive warmth, all thanks to the process of perspiration. In circumstances of high air temperature and humidity (high heat index), the body's perspiration is restricted, heightening the feeling of warmth. Inadequate heat shedding in the face of rising body temperatures hints at potential dehydration risks.
Humidity
June through September and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In September, the rain falls for 17.6 days. Throughout September, 2.24" (57mm) of precipitation is accumulated. Throughout the year, there are 157.7 rainfall days, and 20.35" (517mm) of precipitation is accumulated.Daylight
In Pennichaw, the average length of the day in September is 12h and 19min.On the first day of the month, sunrise is at 7:02 am and sunset at 7:45 pm. On the last day of September, sunrise is at 7:16 am and sunset at 7:10 pm EDT.
Sunshine
In September, the average sunshine is 8.8h.UV index
In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum daily UV index of 6 in September converts into the following recommendations:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is at its strongest, and remember that parasols or canopies do not offer full protection. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Pennichaw, FL
- Average high temperature in September: 88°F
The warmest month (with the highest average high temperature) is August (91.2°F).
The month with the lowest average high temperature is January (68.4°F).
- Average low temperature in September: 75°F
The month with the highest average low temperature is August (76.8°F).
The coldest month (with the lowest average low temperature) is January (53.2°F).
Average pressure in September
Pennichaw, FL
- Average pressure in September: 29.97"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).
Average wind speed in September
Pennichaw, FL
- Average wind speed in September: 5.3mph
The windiest month (with the highest average wind speed) is April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.8mph).
Average humidity in September
Pennichaw, FL
- Average humidity in September: 77%
The months with the highest relative humidity are June, July, August, September and December (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Pennichaw, FL
- Average rainfall in September: 2.24"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is March (0.71").
Average rainfall days in September
Pennichaw, FL
- Average rainfall days in September: 17.6 days
The month with the highest number of rainy days is August (20.9 days).
The month with the least rainy days is February (8.5 days).
Average daylight in September /
Average sunshine in September
Pennichaw, FL
- Average daylight in September: 12h and 18min
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 48min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are January, November and December (Average sunshine: 6h and 6min).
Average sunshine days in September
Pennichaw, FL
- Average sunshine days in September: 8.8 days
The month with the most sunshine days is January (19.3 days).
The month with the least sunshine days is August (6.6 days).
Average UV index in September
Pennichaw, 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
Pennichaw, 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
Pennichaw, 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).
