September weather forecast and climate
Balm, FL

Weather in September

September, the first month of the autumn, in Balm, is still a hot month, with average temperature fluctuating between 74.8°F (23.8°C) and 88.3°F (31.3°C).

Temperature

In Balm, the average high-temperature is almost the same as in August - a still hot 88.3°F (31.3°C). In September, the average low-temperature is 74.8°F (23.8°C).

Heat index

In September, the average heat index is calculated to an extremely hot 105.4°F (40.8°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature', 'real feel', 'feels like', or 'felt air temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (clothing, pregnancy, wind). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.
To prevent overheating and help regulate its internal temperature, the human body sweat and rely on the evaporation to cool down. High relative humidity reduces the evaporation rate, resulting in a lower heat removal rate from the body, causing the perception of being overheated. If the body can not disperse the excessive heat and body temperature reaches conditions of hyperthermia, above 99.5°F (37.5°C) to 100.9°F (38.3°C), thermal conditions are potentially life-threatening.

Humidity

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

Rainfall

In Balm, during September, the rain falls for 20.1 days and regularly aggregates up to 1.5" (38mm) of precipitation. Throughout the year, there are 159.5 rainfall days, and 15.16" (385mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12.3h.

Sunshine

In Balm, 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. A UV Index estimate of 6 to 7 represents a high health hazard from the exposure to the Sun's UV rays for the ordinary person.
Note: The daily maximum UV index of 7 in September interpret into the following advice:
Take precautions against overexposure. Protection against sun damage is needed. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.
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FAQ

What is the temperature in September in Balm?

In Balm, in September, the average high-temperature is 88.3°F (31.3°C), and the average low-temperature is 74.8°F (23.8°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), that takes the relative humidity and factores it into the air temperature reading, in September is calculated to 105.4°F (40.8°C).

What is the most humid month in Balm?

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

What is the average humidity in September in Balm?

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

How many days does it rain in September in Balm?

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

What is the average length of the day in September in Balm?

In Balm, the average length of the day in September is 12.3h.

How many hours of sunshine does Balm have in September?

The average sunshine in September in Balm, Florida, is 9h.

When is the highest UV index in Balm?

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

How high is the UV index in September in Balm?

In September, the average daily maximum UV index in Balm is 7. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV radiation.

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).

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Average pressure in September
Balm, FL

Average pressure in September - Balm, FL
  • Average pressure in September: 29.96"

The month with the highest atmospheric pressure is January (30.13").
The month with the lowest atmospheric pressure is September (29.96").

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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).

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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%).
Months with the lowest relative humidity are March, April and May (71%).

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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").

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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).

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

Average daylight in September / Average sunshine in September - Balm, FL
  • Average daylight in September: 12.3h

The month with the longest days is June (Average daylight: 13.9h).
The month with the shortest days is December (Average daylight: 10.4h).

  • Average sunshine in September: 9h

The month with the most sunshine is May (Average sunshine: 11.1h).
The month with the least sunshine is December (Average sunshine: 6.4h).

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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).

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Average UV index in September
Balm, FL

Average UV index in September - Balm, FL
  • Average UV index in September: 7

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).

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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).

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Average visibility in September
Balm, FL

Average visibility in September - Balm, FL
  • Average visibility in September: 6mi

Months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

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