September weather forecast
Balm, FL

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Weather in September

The first month of the autumn, September, is also a hot month in Balm, Florida, with temperature in the range of an average low of 74.8°F (23.8°C) and an average high of 88.3°F (31.3°C).

Temperature

With September's arrival, Balm, Florida, notes an average high-temperature of a still tropical 88.3°F (31.3°C), closely following the trend of the preceding month. In September, the average low-temperature is a warm 74.8°F (23.8°C).

Heat index

The average heat index in September is calculated to be a blisteringly hot 105.8°F (41°C). Greater safety measures are needed, risk of heat exhaustion and heat cramps is high. Continuous activity might trigger heatstroke.
In terms of the heat index, values are set with light wind and shade conditions in mind. Facing direct sunlight may hike up the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'feels like', quantifies the warmth felt when relative humidity is considered. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Young ones often underestimate the need for rest and rehydration. Thirst appears late in dehydration - hence, it is important to keep hydrated, particularly during prolonged physical activities.
When temperatures rise, the human body turns to perspiration, using the cooling power of evaporating sweat. Greater relative humidity lessens the rate of evaporation, thus decreasing the body's heat dispersal, which gives rise to a sensation of overheating. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

With an average relative humidity of 77%, September is the most humid month.

Rainfall

In Balm, in September, it is raining for 20.1 days, with typically 1.5" (38mm) of accumulated precipitation. In Balm, during the entire year, the rain falls for 159.5 days and collects up to 15.16" (385mm) of precipitation.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of the month, sunrise is at 7:08 am and sunset at 7:49 pm. On the last day of September, sunrise is at 7:21 am and sunset at 7:15 pm EDT.

Sunshine

In September, the average sunshine in Balm is 9h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for average individuals.
Note: In September, the maximum UV index of 7 translates into these guidelines:
Ward off overexposure. Defence against solar harm is crucial. The Sun emits the most powerful UV radiation between 10 a.m. and 4 p.m. Try to avoid direct sunlight during this period. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Jul 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The average high-temperature and low-temperature during September are 88.3°F (31.3°C) and 74.8°F (23.8°C) respectively. The average heat index (a.k.a. 'feels like', 'real feel'), which factors the actual air temperature with the relative humidity, in September is calculated to be 105.8°F (41°C).

What is the most humid month?

The most humid month is September, with an average relative humidity of 77%.

What is the average humidity in September?

In Balm, the average relative humidity in September is 77%.

How many days does it rain in September?

In Balm, Florida, during September, the rain falls for 20.1 days and regularly aggregates up to 1.5" (38mm) of precipitation.

How many hours of daylight does Balm have in September?

The average day length in September is 12h and 19min.

What time are sunrise and sunset in September?

On the first day of September, 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 7:15 pm EDT.

How many hours of sunshine does Balm have in September?

In Balm, the average sunshine duration in September is 9h.

What are the months with the highest UV index?

The months with the highest UV index are May through September, with an average maximum UV index of 7.

What is the UV index reading in September?

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

Average temperature in September
Balm, FL

Average temperature in September - Balm, 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
Balm, FL

Average pressure in September - Balm, 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
Balm, FL

Average wind speed in September - Balm, 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
Balm, FL

Average humidity in September - Balm, 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
Balm, FL

Average rainfall in September - Balm, 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
Balm, FL

Average rainfall days in September - Balm, 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
Balm, FL

Average daylight in September / Average sunshine in September - Balm, 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: 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
Balm, FL

Average sunshine days in September - Balm, 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
Balm, FL

Average UV index in September - Balm, 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
Balm, FL

Average cloud cover in September - Balm, 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
Balm, FL

Average visibility in September - Balm, 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).

Balm, Florida, USA

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