September weather forecastWillow, FL
September
Weather in September
September, the first month of the autumn in Willow, is still a tropical month, with an average temperature fluctuating between 74.8°F (23.8°C) and 88.3°F (31.3°C).Temperature
Willow, Florida, records a slight change with September's average high-temperatures adjusting to a still hot 88.3°F (31.3°C) from August's 90°F (32.2°C). An average low-temperature of 74.8°F (23.8°C) is expected in Willow, Florida, during September.Heat index
In September, the average heat index is computed to be a blisteringly hot 105.8°F (41°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.Heat index data is primarily for areas with shade and subjected to light winds. Being exposed to direct sunshine might trigger a heat index increase by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. Factors such as metabolic variations, being pregnant, and physical activity can impact an individual's weather perception. Direct sunlight exposure should be noted as it has the potential to increase the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Youngsters are usually more at risk than adults, considering they sweat less. Additionally, their high skin surface area compared to their little bodies and their high heat production due to activity increases their risk.
The human body normally cools itself by perspiration, as evaporated sweat carries heat away from the body. With high air temperature and humidity (high heat index) conditions, sweat production is restricted, leading to an amplified perception of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.
Humidity
September is the most humid month in Willow, with an average relative humidity of 77%.Rainfall
In September, the rain falls for 20.1 days. Throughout September, 1.5" (38mm) of precipitation is accumulated. In Willow, during the entire year, the rain falls for 159.5 days and collects up to 15.16" (385mm) of precipitation.Daylight
The average length of the day in September is 12h and 19min.On the first day of September in Willow, Florida, sunrise is at 7:08 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:16 pm EDT.
Sunshine
The average sunshine in September is 9h.UV index
May through September, with an average maximum UV index of 7, are months with the highest UV index in Willow. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV radiation for average individuals.Note: In September, the maximum UV index of 7 translates into these guidelines:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. The Sun's UV radiation is most potent between 10 a.m. and 4 p.m. Try to limit direct exposure to the Sun during this period. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Willow, FL
- Average high temperature in September: 88.3°F
The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is January (68.7°F).
- Average low temperature in September: 74.8°F
The month with the highest average low temperature is August (77.5°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).
Average pressure in September
Willow, 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
Willow, FL
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January and March (7.5mph).
The calmest month (with the lowest average wind speed) is July (5.2mph).
Average humidity in September
Willow, FL
- Average humidity in September: 77%
The month with the highest relative humidity is September (77%).
The months with the lowest relative humidity are March, April and May (71%).
Average rainfall in September
Willow, FL
- Average rainfall in September: 1.5"
The wettest months (with the highest rainfall) are July and August (2.68").
The driest months (with the least rainfall) are January, February and March (0.47").
Average rainfall days in September
Willow, FL
- Average rainfall days in September: 20.1 days
The month with the highest number of rainy days is August (24.1 days).
The month with the least rainy days is February (6.7 days).
Average daylight in September /
Average sunshine in September
Willow, 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: 9h and 0min
The month with the most sunshine is May (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).
Average sunshine days in September
Willow, FL
- Average sunshine days in September: 6.9 days
The month with the most sunshine days is January (22.4 days).
The month with the least sunshine days is August (4.1 days).
Average UV index in September
Willow, 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
Willow, FL
- Average cloud cover in September: 29
The month with the most cloud cover is December (Cloud cover 31).
The month with the least cloud cover is May (Cloud cover 23).
Average visibility in September
Willow, 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).
