September weather forecast
Lake Monroe, FL

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Weather in September

The first month of the autumn, September, is still a hot month in Lake Monroe, Florida, with an average temperature ranging between min 74.3°F (23.5°C) and max 88.3°F (31.3°C).

Temperature

September's onset sees an average high-temperature of a still hot 88.3°F (31.3°C), exhibiting a slight fluctuation from the previous month. Lake Monroe reports an average low-temperature of 74.3°F (23.5°C) during the nights of September.

Heat index

September's mean heat index is estimated at a blisteringly hot 105.8°F (41°C). Exercise increased caution, heat cramps and heat exhaustion are potential hazards. Continuous activity could lead to heatstroke.
Remember that heat index calculations are made for conditions in the shade with light wind. The heat index has the potential to rise by 15 Fahrenheit (8 Celsius) degrees with direct sunshine exposure.
Note: The heat index, also known as 'felt air temperature' or 'real feel', is a single figure representing how weather conditions feel when combining temperature and humidity. Elements such as metabolic variations, being pregnant, and physical activity can impact one's weather perception. Considering the impact of direct sunlight, it's possible for the heat index to surge by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values hold particular significance for children. Kids frequently fail to realize the necessity for resting and hydrating. Thirst is an advanced indication of dehydration - hence, maintaining hydration, especially during extended physical activities, becomes essential.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. During high air temperature and humidity (high heat index), the process of perspiration is hindered, intensifying the sensation of heat. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

The months with the highest humidity are August and September, with an average relative humidity of 77%.

Rainfall

In September, the rain falls for 20.6 days. Throughout September, 3.62" (92mm) of precipitation is accumulated. In Lake Monroe, during the entire year, the rain falls for 187.2 days and collects up to 30.87" (784mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:18 am and sunset at 7:11 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health risk from unsafe exposure to UV radiation for the average person.
Note: In September, an average UV index of 6 transforms into the following instructions:
Adopt measures and apply sun safety strategies. Shielding from skin and eye damage is necessary. The Sun's UV radiation is at its strongest between the hours of 10 a.m. and 4 p.m. Minimize direct exposure to the sun during this period. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The high-temperature, in September, in Lake Monroe, records 88.3°F (31.3°C), while the low-temperature is 74.3°F (23.5°C). In September, the average heat index (a.k.a. 'real feel', 'feels like'), which combines relative humidity and air temperature, is estimated at 105.8°F (41°C).

What is the most humid month?

August and September, with an average relative humidity of 77%, are most humid months.

What is the average humidity in September?

In September, the average relative humidity is 77%.

How many days does it rain in September?

In Lake Monroe, in September, during 20.6 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

When it does not snow in Lake Monroe?

In Lake Monroe, snow does not fall in February through December.

What is the average length of the day in September?

In Lake Monroe, the average day length in September is 12h and 19min.

What time are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:03 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:18 am and sunset at 7:11 pm EDT.

How long on average sun shines in September in Lake Monroe?

The average sunshine duration in September is 8.9h.

What is the UV index reading in September?

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Lake Monroe, FL

Average temperature in September - Lake Monroe, FL
  • Average high temperature in September: 88.3°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (67.8°F).

  • Average low temperature in September: 74.3°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (51.4°F).

Average pressure in September
Lake Monroe, FL

Average pressure in September - Lake Monroe, FL
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

Average wind speed in September
Lake Monroe, FL

Average wind speed in September - Lake Monroe, FL
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September
Lake Monroe, FL

Average humidity in September - Lake Monroe, FL
  • Average humidity in September: 77%

The months with the highest relative humidity are August and September (77%).
The month with the lowest relative humidity is March (70%).

Average rainfall in September
Lake Monroe, FL

Average rainfall in September - Lake Monroe, FL
  • Average rainfall in September: 3.62"

The wettest month (with the highest rainfall) is August (4.84").
The driest month (with the least rainfall) is March (1.18").

Average rainfall days in September
Lake Monroe, FL

Average rainfall days in September - Lake Monroe, FL
  • Average rainfall days in September: 20.6 days

The month with the highest number of rainy days is August (24.1 days).
The month with the least rainy days is January (10.1 days).

Average snowfall in September
Lake Monroe, FL

Average snowfall in September - Lake Monroe, FL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
Lake Monroe, FL

Average snowfall days in September - Lake Monroe, FL
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.1 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Lake Monroe, FL

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

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 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

Average sunshine days in September
Lake Monroe, FL

Average sunshine days in September - Lake Monroe, FL
  • Average sunshine days in September: 6 days

The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is July (3.8 days).

Average UV index in September
Lake Monroe, FL

Average UV index in September - Lake Monroe, 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
Lake Monroe, FL

Average cloud cover in September - Lake Monroe, 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
Lake Monroe, FL

Average visibility in September - Lake Monroe, 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).

Lake Monroe, Florida, USA

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