September weather forecast
South Miami Heights, FL

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Weather in September

The first month of the autumn, September, is also a hot month in South Miami Heights, Florida, with an average temperature ranging between max 88.2°F (31.2°C) and min 79.7°F (26.5°C).

Temperature

September welcomes an average high-temperature of a still tropical 88.2°F (31.2°C), not much different from the preceding month. South Miami Heights reports an average low-temperature of 79.7°F (26.5°C) during the subtly cooler September nights.

Heat index

In September, the heat index is calculated to be a very hot 102.2°F (39°C). Preventive measures are required to mitigate the risk of heat cramps and heat exhaustion. Continuous activity may precipitate heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'felt air temperature', unifies temperature and humidity readings to offer a comprehensive feel of warmth. Metabolic differences, pregnancy status, and the level of physical activity are additional factors influencing an individual's weather perception. Understand that direct sun rays can influence the weather's impact, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
Normally, the human body cools itself through perspiration, which removes excessive heat by evaporating sweat. An elevated level of relative humidity hinders evaporation, leading to decreased heat elimination from the body, inducing a sensation of excess heat. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.

Humidity

In South Miami Heights, the average relative humidity in September is 72%.

Rainfall

In South Miami Heights, in September, during 16.1 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. In South Miami Heights, during the entire year, the rain falls for 123.4 days and collects up to 9.61" (244mm) of precipitation.

Daylight

In South Miami Heights, the average length of the day in September is 12h and 17min.
On the first day of September, sunrise is at 7:02 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:08 pm EDT.

Sunshine

In South Miami Heights, the average sunshine in September is 9h.

UV index

The months with the highest UV index are April through September, with an average maximum UV index of 7. A UV Index value of 6 to 7 symbolizes a high health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.
Note: A maximum UV index of 7 in September translates into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.
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Frequently asked questions

How hot is it in South Miami Heights in September?

The high-temperature, in September, in South Miami Heights, records 88.2°F (31.2°C), while the low-temperature is 79.7°F (26.5°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is calculated to be 102.2°F (39°C).

What is the average humidity in September in South Miami Heights?

The average relative humidity in September is 72%.

How many days does it rain in September in South Miami Heights?

In South Miami Heights, in September, it is raining for 16.1 days, with typically 0.94" (24mm) of accumulated precipitation.

How many hours of daylight does South Miami Heights have in September?

The average day length in September in South Miami Heights, Florida, is 12h and 17min.

When is the sunrise / sunset in September in South Miami Heights?

On the first day of September in South Miami Heights, sunrise is at 7:02 am and sunset at 7:40 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 7:08 pm EDT.

How long on average sun shines in September in South Miami Heights?

In September, the average sunshine duration is 9h.

What are the months with the highest UV index in South Miami Heights?

April through September, with an average maximum UV index of 7, are months with the highest UV index in South Miami Heights, Florida.

How high is the UV index in September in South Miami Heights?

In September, the average daily maximum UV index in South Miami Heights is 7. A UV Index of 6 to 7 symbolizes 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
South Miami Heights, FL

Average temperature in September - South Miami Heights, FL
  • Average high temperature in September: 88.2°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 (74.1°F).

  • Average low temperature in September: 79.7°F

The month with the highest average low temperature is August (81.5°F).
The coldest month (with the lowest average low temperature) is January (61.9°F).

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Average pressure in September
South Miami Heights, FL

Average pressure in September - South Miami Heights, FL
  • Average pressure in September: 29.95"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are September and October (29.95"Hg).

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Average wind speed in September
South Miami Heights, FL

Average wind speed in September - South Miami Heights, FL
  • Average wind speed in September: 6.9mph

The windiest months (with the highest average wind speed) are March and April (9.4mph).
The calmest month (with the lowest average wind speed) is July (6.5mph).

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Average humidity in September
South Miami Heights, FL

Average humidity in September - South Miami Heights, FL
  • Average humidity in September: 72%

The month with the highest relative humidity is December (74%).
The month with the lowest relative humidity is March (67%).

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Average rainfall in September
South Miami Heights, FL

Average rainfall in September - South Miami Heights, FL
  • Average rainfall in September: 0.94"

The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is January (0.24").

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Average rainfall days in September
South Miami Heights, FL

Average rainfall days in September - South Miami Heights, FL
  • Average rainfall days in September: 16.1 days

The month with the highest number of rainy days is July (17.1 days).
The month with the least rainy days is January (4.6 days).

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Average daylight in September /
Average sunshine in September
South Miami Heights, FL

Average daylight in September / Average sunshine in September - South Miami Heights, FL
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 13h and 42min).
The month with the shortest days is December (Average daylight: 10h and 36min).

  • Average sunshine in September: 9h and 0min

The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

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Average sunshine days in September
South Miami Heights, FL

Average sunshine days in September - South Miami Heights, FL
  • Average sunshine days in September: 11.4 days

The month with the most sunshine days is January (25.1 days).
The month with the least sunshine days is July (9.1 days).

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Average UV index in September
South Miami Heights, FL

Average UV index in September - South Miami Heights, FL
  • Average UV index in September: 7

The months with the highest UV index are April, May, June, July, August and September (UV index 7).
The month with the lowest UV index is January (UV index 5).

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Average cloud cover in September
South Miami Heights, FL

Average cloud cover in September - South Miami Heights, FL
  • Average cloud cover in September: 28

The month with the most cloud cover is October (Cloud cover 34).
The month with the least cloud cover is April (Cloud cover 25).

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Average visibility in September
South Miami Heights, FL

Average visibility in September - South Miami 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).

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South Miami Heights, Florida, USA

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