September weather forecast
Willow Oak, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in Willow Oak, Florida, with an average temperature varying between 73.6°F (23.1°C) and 88.2°F (31.2°C).

Temperature

September is marked by an average high-temperature of a still hot 88.2°F (31.2°C), almost identical to the preceding month. Willow Oak experiences a mean low-temperature of 73.6°F (23.1°C) during September.

Heat index

September's average heat index is calculated to be an extremely hot 105.8°F (41°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.
Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'real feel', provides an understanding of perceived warmth by combining temperature and relative humidity. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. When directly under the sun, the weather's impact can intensify, possibly boosting the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
To offset high temperatures, the human body releases sweat which, upon evaporation, cools it down. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. Heat-related challenges, like dehydration, can be anticipated when body heat isn't managed effectively.

Humidity

The months with the highest humidity in Willow Oak are August and September, with an average relative humidity of 79%.

Rainfall

In September, the rain falls for 20.6 days. Throughout September, 3.98" (101mm) of precipitation is accumulated. In Willow Oak, Florida, during the entire year, the rain falls for 189 days and collects up to 36.54" (928mm) of precipitation.

Daylight

In Willow Oak, the average length of the day in September is 12h and 19min.
On the first day of September in Willow Oak, sunrise is at 7:07 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

Sunshine

In September, the average sunshine in Willow Oak is 8.6h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Willow Oak. A UV Index estimate of 6 to 7 represents a high health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Endorse precautions and be consistent with sun safety guidelines. Preventing sunburn is paramount. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.
Updated: Feb 10, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in Willow Oak in September?

The average high-temperature and low-temperature in Willow Oak, Florida, during September are 88.2°F (31.2°C) and 73.6°F (23.1°C) respectively. In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines relative humidity and air temperature, is calculated to be 105.8°F (41°C).

What is the most humid month in Willow Oak?

The months with the highest humidity are August and September, with an average relative humidity of 79%.

What is the average humidity in September in Willow Oak?

The average relative humidity in September in Willow Oak, Florida, is 79%.

How much does it rain in Willow Oak in September?

In September, in Willow Oak, the rain falls for 20.6 days. Throughout September, 3.98" (101mm) of precipitation is accumulated.

What is the average length of the day in September in Willow Oak?

In September, the average day length in Willow Oak is 12h and 19min.

What time are sunrise and sunset in September in Willow Oak?

On the first day of September in Willow Oak, sunrise is at 7:07 am and sunset at 7:48 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

How long on average sun shines in September in Willow Oak?

In September, the average sunshine duration in Willow Oak is 8.6h.

What are the months with the highest UV index in Willow Oak?

May through September, with an average maximum UV index of 7, are months with the highest UV index in Willow Oak, Florida.

How high is the UV index in September in Willow Oak?

In September, the average daily maximum UV index in Willow Oak, Florida, is 7. A UV Index estimate of 6 to 7 represents a high hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Willow Oak, FL

Average temperature in September - Willow Oak, FL
  • Average high temperature in September: 88.2°F

The warmest month (with the highest average high temperature) is August (90°F).
The month with the lowest average high temperature is January (68.9°F).

  • Average low temperature in September: 73.6°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (51.1°F).

Average pressure in September
Willow Oak, FL

Average pressure in September - Willow Oak, 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 Oak, FL

Average wind speed in September - Willow Oak, FL
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are March and April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September
Willow Oak, FL

Average humidity in September - Willow Oak, FL
  • Average humidity in September: 79%

The months with the highest relative humidity are August and September (79%).
The month with the lowest relative humidity is March (71%).

Average rainfall in September
Willow Oak, FL

Average rainfall in September - Willow Oak, FL
  • Average rainfall in September: 3.98"

The wettest month (with the highest rainfall) is August (6.89").
The driest months (with the least rainfall) are January and November (1.18").

Average rainfall days in September
Willow Oak, FL

Average rainfall days in September - Willow Oak, FL
  • Average rainfall days in September: 20.6 days

The month with the highest number of rainy days is July (26.8 days).
The month with the least rainy days is January (9.1 days).

Average daylight in September /
Average sunshine in September
Willow Oak, FL

Average daylight in September / Average sunshine in September - Willow Oak, FL
  • Average daylight in September: 12h and 2min

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 4min

The month with the most sunshine is May (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

Average sunshine days in September
Willow Oak, FL

Average sunshine days in September - Willow Oak, FL
  • Average sunshine days in September: 7.8 days

The month with the most sunshine days is January (19.9 days).
The month with the least sunshine days is July (2.9 days).

Average UV index in September
Willow Oak, FL

Average UV index in September - Willow Oak, 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 Oak, FL

Average cloud cover in September - Willow Oak, FL
  • Average cloud cover in September: 35

The months with the most cloud cover are February and December (Cloud cover 37).
The month with the least cloud cover is May (Cloud cover 29).

Average visibility in September
Willow Oak, FL

Average visibility in September - Willow Oak, 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).

Willow Oak, Florida, USA

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