September weather forecastPunta Rassa, FL
September
Weather in September
The first month of the autumn, September, is still a hot month in Punta Rassa, Florida, with an average temperature ranging between max 86.5°F (30.3°C) and min 79.2°F (26.2°C).Temperature
With the transition into September, Punta Rassa notes an average high-temperature of a still hot 86.5°F (30.3°C), closely resembling August. Punta Rassa documents an average low-temperature of 79.2°F (26.2°C) for the nights of September.Heat index
Throughout September, the heat index is appraised at a very hot 98.6°F (37°C). Apply extra caution, heat cramps and heat exhaustion could happen. Heatstroke might occur with long-duration activity.Thinking about the heat index, one should account for its values in shaded areas with gentle breezes. Under direct sunshine, the heat index values might be elevated by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is a calculated temperature value of how hot it feels when the moisture in the air is factored in. Elements of metabolic variation, physical activity, and clothing contribute to the effect of temperature on an individual. It is essential to be conscious of the fact that direct sunlight can intensify the felt heat, leading to an elevation in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular importance for children. Children commonly overlook the importance of rest and fluid replenishment. Thirst, being a delayed sign of dehydration, emphasizes the need to keep hydration up, especially during lengthy physical activities.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. Under conditions of high relative humidity, the rate of evaporation decreases. This results in the body retaining more heat than under conditions of dry air. The body faces dehydration threats when its cooling efforts are outpaced by excessive heat gain.
Humidity
In Punta Rassa, the average relative humidity in September is 75%.Rainfall
In September, the rain falls for 25.3 days. Throughout September, 6.18" (157mm) of precipitation is accumulated. Throughout the year, there are 190.9 rainfall days, and 41.73" (1060mm) of precipitation is accumulated.Ocean temperature
In Punta Rassa, the average seawater temperature in September is 85.3°F (29.6°C).Note: Surface water temperatures ranging from 77°F (25°C) to 84.2°F (29°C) are considered superb and highly pleasant for water activities over extended periods.
Daylight
In September, the average length of the day is 12h and 18min.On the first day of September, sunrise is at 7:08 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:15 pm EDT.
Sunshine
The average sunshine in September is 9.1h.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 threat to health from exposure to the Sun's UV radiation for the average person.Note: An average maximum UV index of 7 in September leads to these recommendations:
Eschew overexposure. Those with light skin may suffer burns in fewer than 20 minutes. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Watch out! Reflections from sand and water can surge UV radiation exposure.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Punta Rassa, FL
- Average high temperature in September: 86.5°F
The warmest month (with the highest average high temperature) is August (88°F).
The month with the lowest average high temperature is January (69.8°F).
- Average low temperature in September: 79.2°F
The month with the highest average low temperature is August (81.1°F).
The coldest month (with the lowest average low temperature) is January (59.5°F).
Average pressure in September
Punta Rassa, FL
- Average pressure in September: 29.95"Hg
The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is September (29.95"Hg).
Average wind speed in September
Punta Rassa, FL
- Average wind speed in September: 7.9mph
The windiest months (with the highest average wind speed) are October and November (10.1mph).
The calmest month (with the lowest average wind speed) is July (6.9mph).
Average humidity in September
Punta Rassa, FL
- Average humidity in September: 75%
The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are March, May, July, August and October (73%).
Average rainfall in September
Punta Rassa, FL
- Average rainfall in September: 6.18"
The wettest month (with the highest rainfall) is August (8.54").
The driest month (with the least rainfall) is February (1.06").
Average rainfall days in September
Punta Rassa, FL
- Average rainfall days in September: 25.3 days
The month with the highest number of rainy days is August (27.3 days).
The month with the least rainy days is February (8.2 days).
Average sea temperature in September
Punta Rassa, FL
- Average sea temperature in September: 85.4°F
The best month for swimming (with the highest average sea temperature) is August (87.1°F).
The coldest month (with the lowest average sea temperature) is January (65.3°F).
Average daylight in September /
Average sunshine in September
Punta Rassa, FL
- Average daylight in September: 12h and 18min
The month with the longest days is June (Average daylight: 13h and 48min).
The month with the shortest days is December (Average daylight: 10h and 30min).
- Average sunshine in September: 9h and 6min
The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 36min).
Average sunshine days in September
Punta Rassa, FL
- Average sunshine days in September: 3 days
The month with the most sunshine days is January (19.8 days).
The month with the least sunshine days is August (2.3 days).
Average UV index in September
Punta Rassa, 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 months with the lowest UV index are January and February (UV index 5).
Average cloud cover in September
Punta Rassa, FL
- Average cloud cover in September: 28
The month with the most cloud cover is January (Cloud cover 29).
The months with the least cloud cover are March and May (Cloud cover 23).
Average visibility in September
Punta Rassa, 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).





