September weather forecast
Fountain Heights, FL

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Weather in September

The first month of the autumn, September, is also a hot month in Fountain Heights, Florida, with temperature in the range of an average high of 88.2°F (31.2°C) and an average low of 73.6°F (23.1°C).

Temperature

The ushering in of September brings an average high-temperature of a still hot 88.2°F (31.2°C), closely mirroring the 90°F (32.2°C) of August. In September, Fountain Heights reports a consistent average low-temperature of 73.6°F (23.1°C) during the nights.

Heat index

For most parts of September, the heat index is calculated to be an extremely hot 105.8°F (41°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Evaluating the heat index requires understanding its values in the shade and with gentle winds. The heat index may scale up by 15 Fahrenheit (8 Celsius) degrees with direct sun exposure.
Note: The heat index, also known as 'real feel' or 'feels like', is the outcome of merging air's temperature and its humidity metrics. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Keep aware, the sun, when shining directly, can intensify the heat experience, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Children typically face more danger than adults as their sweat production is usually lower. Additionally, the bigger skin surface compared to their small size and the increased heat due to their activeness exacerbate the risk.
When it comes to cooling down, the human body's primary method is through perspiration, making use of sweat evaporation to eliminate excess heat. In the presence of high relative humidity, the evaporation rate diminishes, resulting in the body retaining more warmth compared to dry conditions. Overheating and potential dehydration arise when body heat gain eclipses its release capability.

Humidity

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

Rainfall

In Fountain Heights, in September, it is raining for 20.6 days, with typically 3.98" (101mm) of accumulated precipitation. In Fountain Heights, during the entire year, the rain falls for 189 days and collects up to 36.54" (928mm) of precipitation.

Daylight

In Fountain Heights, the average length of the day in September is 12h and 19min.
On the first day of September in Fountain Heights, sunrise is at 7:06 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 Fountain Heights, the average sunshine in September is 8.6h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index. A UV Index value of 6 to 7 symbolizes a high health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: The maximum UV index of 7 during September leads to these instructions:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. Experience reduced UV exposure by about half when donning a wide-brim hat.

Frequently asked questions

Is it hot during September?

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

What are the most humid months?

August and September, with an average relative humidity of 79%, are most humid months.

What is the average humidity in September?

In Fountain Heights, the average relative humidity in September is 79%.

How many days does it rain in September?

In September, 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?

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

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:06 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 many hours of sunshine does Fountain Heights have in September?

In September, the average sunshine duration is 8.6h.

What is the month with the highest UV index?

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

What is the UV index intensity in September?

In Fountain Heights, the average daily maximum UV index in September is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unsafe 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
Fountain Heights, FL

Average temperature in September - Fountain Heights, 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
Fountain Heights, FL

Average pressure in September - Fountain Heights, 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
Fountain Heights, FL

Average wind speed in September - Fountain Heights, 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
Fountain Heights, FL

Average humidity in September - Fountain Heights, 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
Fountain Heights, FL

Average rainfall in September - Fountain Heights, 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
Fountain Heights, FL

Average rainfall days in September - Fountain Heights, 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
Fountain Heights, FL

Average daylight in September / Average sunshine in September - Fountain Heights, 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
Fountain Heights, FL

Average sunshine days in September - Fountain Heights, 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
Fountain Heights, FL

Average UV index in September - Fountain Heights, 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
Fountain Heights, FL

Average cloud cover in September - Fountain Heights, 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
Fountain Heights, FL

Average visibility in September - Fountain Heights, 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).

Fountain Heights, Florida, USA

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