September weather forecast
Montbrook, FL

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Weather in September

The first month of the autumn, September, is also a hot month in Montbrook, Florida, with an average temperature ranging between min 72.3°F (22.4°C) and max 87.6°F (30.9°C).

Temperature

As September unfolds, the average high-temperature reaches a still hot 87.6°F (30.9°C), hinting at a slight fluctuation from the previous month. The low-temperature averages to an agreeable 72.3°F (22.4°C) during the nights of September.

Heat index

In September, the average heat index is evaluated at a blistering 104°F (40°C). Implement additional safety measures to avoid heat cramps and heat exhaustion. Persistent activity might trigger heatstroke.
It is worth noting that heat index values are gauged for conditions in the shade and light breezes. The presence of direct sunlight can raise the heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', offers an insight into how hot it feels when we factor in moisture content. A person's impression of weather can be shaped by many aspects, among them metabolic variations, pregnancy, and levels of physical activity. Direct sunlight can potentially raise the heat index by 15 Fahrenheit (8 Celsius) degrees, so it's crucial to consider. Heat index values are highly critical to babies and toddlers. Kids are usually more vulnerable than adults, given their lesser sweating ability. Along with their larger skin surface relative to their small stature and the excess heat due to their activity, their risk is amplified.
When faced with excessive heat, the human body begins to perspire, utilizing the cooling benefits of sweat evaporation. With a high level of moisture in the air, the evaporation process becomes less efficient, preventing the body from cooling down efficiently and resulting in a sensation of overheating. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.

Humidity

July through September, with an average relative humidity of 78%, are the most humid months in Montbrook.

Rainfall

In September, the rain falls for 14.2 days. Throughout September, 0.59" (15mm) of precipitation is accumulated. Throughout the year, there are 127 rainfall days, and 10.04" (255mm) of precipitation is accumulated.

Snowfall

February through December are months without snowfall.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

In Montbrook, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from exposure to the Sun's UV radiation for average individuals.
Note: The maximum daily UV index, 6 in September, converts into the following recommendations:
Escape overexposure. People with light skin may incur burns in fewer than 20 minutes. Remember that UV radiation from the Sun is strongest between 10 a.m. and 4 p.m. Make an effort to limit direct sun exposure during this time. Wearing sunglasses with both UVA and UVB protection effectively reduces sun-induced eye damage.
Updated: Aug 14, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot during September?

Montbrook in September has an average high-temperature of 87.6°F (30.9°C) and an average low-temperature of 72.3°F (22.4°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 104°F (40°C).

What are the most humid months?

The months with the highest humidity are July through September, with an average relative humidity of 78%.

What is the average humidity in September?

In Montbrook, the average relative humidity in September is 78%.

How many days does it rain in September?

In September, the rain falls for 14.2 days. Throughout September, 0.59" (15mm) of precipitation is accumulated.

When it does not snow?

In Montbrook, snow does not fall in February through December.

How many hours of daylight does Montbrook have in September?

The average day length in September in Montbrook is 12h and 20min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 7:07 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

How long on average sun shines in September in Montbrook?

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

What is the UV index reading in September?

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Montbrook, FL

Average temperature in September - Montbrook, FL
  • Average high temperature in September: 87.6°F

The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (64.9°F).

  • Average low temperature in September: 72.3°F

The month with the highest average low temperature is August (75.4°F).
The coldest month (with the lowest average low temperature) is January (47.3°F).

Average pressure in September
Montbrook, FL

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

The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

Average wind speed in September
Montbrook, FL

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

The windiest months (with the highest average wind speed) are March and April (7mph).
The calmest month (with the lowest average wind speed) is July (4.9mph).

Average humidity in September
Montbrook, FL

Average humidity in September - Montbrook, FL
  • Average humidity in September: 78%

The months with the highest relative humidity are July, August and September (78%).
The month with the lowest relative humidity is March (71%).

Average rainfall in September
Montbrook, FL

Average rainfall in September - Montbrook, FL
  • Average rainfall in September: 0.59"

The wettest month (with the highest rainfall) is July (1.73").
The driest month (with the least rainfall) is March (0.28").

Average rainfall days in September
Montbrook, FL

Average rainfall days in September - Montbrook, FL
  • Average rainfall days in September: 14.2 days

The month with the highest number of rainy days is July (19 days).
The month with the least rainy days is November (5.1 days).

Average snowfall days in September
Montbrook, FL

Average snowfall days in September - Montbrook, 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
Montbrook, FL

Average daylight in September / Average sunshine in September - Montbrook, 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 4min

The months with the most sunshine are May and July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 6h and 0min).

Average sunshine days in September
Montbrook, FL

Average sunshine days in September - Montbrook, FL
  • Average sunshine days in September: 11.8 days

The month with the most sunshine days is January (23.5 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in September
Montbrook, FL

Average UV index in September - Montbrook, FL
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 4).

Average cloud cover in September
Montbrook, FL

Average cloud cover in September - Montbrook, FL
  • Average cloud cover in September: 33

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 28).

Average visibility in September
Montbrook, FL

Average visibility in September - Montbrook, 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).

Montbrook, Florida, USA

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