September weather forecastLulu, FL
September
Weather in September
The first month of the autumn, September, is still a hot month in Lulu, Florida, with an average temperature fluctuating between 70.9°F (21.6°C) and 87.8°F (31°C).Temperature
The advent of September reveals an average high-temperature of a still tropical 87.8°F (31°C), showing minimal difference from the prior month. Throughout the month of September, the average temperature dips to an agreeable 70.9°F (21.6°C) at night.Heat index
September's heat index is calculated to be a blisteringly hot 104°F (40°C). Heightened precautions are necessary, heat cramps and heat exhaustion are potential risks. Continuous activity could lead to heatstroke.Heat index details are generally centered around shaded locations and a mild breeze. With exposure to direct sunlight, the heat index may be increased by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', stands as a testimony to how temperature and humidity combine to impact our sense of warmth. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant 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.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. 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. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.
Humidity
August, September and December, with an average relative humidity of 77%, are the most humid months.Rainfall
In Lulu, in September, it is raining for 19.9 days, with typically 3.07" (78mm) of accumulated precipitation. In Lulu, during the entire year, the rain falls for 176.6 days and collects up to 32.17" (817mm) of precipitation.Daylight
The average length of the day in September is 12h and 20min.On the first day of the month, sunrise is at 7:07 am and sunset at 7:52 pm. On the last day of September, sunrise is at 7:23 am and sunset at 7:16 pm EDT.
Sunshine
In Lulu, the average sunshine in September is 8.5h.UV index
In Lulu, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.Note: In September, the maximum UV index of 6 suggests these recommendations:
Skirt overexposure. People with light complexions might get scorched in under 20 minutes. The hours from 10 a.m. to 4 p.m. have the most intense UV radiation. As much as possible, limit direct sun exposure during this period. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Lulu, FL
- Average high temperature in September: 87.8°F
The warmest month (with the highest average high temperature) is July (91.4°F).
The month with the lowest average high temperature is January (62.6°F).
- Average low temperature in September: 70.9°F
The month with the highest average low temperature is August (74.8°F).
The coldest month (with the lowest average low temperature) is January (44.2°F).
Average pressure in September
Lulu, FL
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.98"Hg).
Average wind speed in September
Lulu, FL
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.3mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in September
Lulu, FL
- Average humidity in September: 77%
The months with the highest relative humidity are August, September and December (77%).
The month with the lowest relative humidity is March (70%).
Average rainfall in September
Lulu, FL
- Average rainfall in September: 3.07"
The wettest month (with the highest rainfall) is July (5.12").
The driest month (with the least rainfall) is November (1.14").
Average rainfall days in September
Lulu, FL
- Average rainfall days in September: 19.9 days
The month with the highest number of rainy days is August (27.6 days).
The month with the least rainy days is November (6.9 days).
Average daylight in September /
Average sunshine in September
Lulu, FL
- Average daylight in September: 12h and 18min
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 30min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 5h and 48min).
Average sunshine days in September
Lulu, FL
- Average sunshine days in September: 8.3 days
The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is August (1.8 days).
Average UV index in September
Lulu, 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
Lulu, FL
- Average cloud cover in September: 34
The month with the most cloud cover is December (Cloud cover 40).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in September
Lulu, 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).
