September weather forecast
South Sanford Heights, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in South Sanford Heights, Florida, with temperature in the range of an average low of 74.3°F (23.5°C) and an average high of 88°F (31.1°C).

Temperature

As September unfolds, the average high-temperature reaches a still hot 88°F (31.1°C), hinting at a slight fluctuation from the previous month. Throughout September, South Sanford Heights witnesses a nighttime temperature average of 74.3°F (23.5°C).

Heat index

September's heat index is estimated at an extremely hot 104°F (40°C). Emphasize additional safety, risk of heat cramps and heat exhaustion is high. Continuous activity might result in heatstroke.
Take into consideration that the heat index values are calculated for shade and light wind conditions. A rise in the heat index by 15 Fahrenheit (8 Celsius) degrees may result from direct sunlight exposure.
Note: The heat index, also known as 'real feel' or 'felt air temperature', reflects the blend of air temperature and relative humidity to give a temperature impression. The impact of temperature is individual, as people's perception of weather may change based on their body mass, height, and physical activity. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are particularly relevant to children. Young children typically face greater hazards than adults because they do not sweat as much. Their larger skin surface in comparison to their little bodies and the high heat production from their active nature compounds their vulnerability.
The natural cooling mechanism in humans involves perspiration, where the evaporation of sweat balances out excessive warmth. When relative humidity is at high levels, the evaporation rate lessens, causing the body to keep more heat than it would in less humid conditions. When the heat gained surpasses the body's cooling capacity, temperatures rise, signaling potential health concerns.

Humidity

August and September, with an average relative humidity of 77%, are the most humid months.

Rainfall

In South Sanford Heights, during September, the rain falls for 20.8 days and regularly aggregates up to 3.46" (88mm) of precipitation. In South Sanford Heights, Florida, during the entire year, the rain falls for 185.5 days and collects up to 30.43" (773mm) of precipitation.

Snowfall

In South Sanford Heights, snow does not fall in February through December.

Daylight

In South Sanford Heights, the average length of the day in September is 12h and 19min.
On the first day of the month, sunrise is at 7:03 am and sunset at 7:46 pm. On the last day of September, sunrise is at 7:17 am and sunset at 7:11 pm EDT.

Sunshine

In September, the average sunshine is 8.9h.

UV index

The months with the highest UV index are May through September, with an average maximum UV index of 7. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum daily UV index of 7 during September morphs into the following directions:
Conform to measures and uphold sun safety traditions. Warding off skin and eye harm is necessary. Remember that the sun's UV radiation is strongest between 10 a.m. and 4 p.m. Make an effort to avoid direct sun exposure during these hours. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays.
Updated: Aug 19, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

In South Sanford Heights, 88°F (31.1°C) is the average high-temperature and 74.3°F (23.5°C) is the average low-temperature during September. The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines air temperature and relative humidity, in September is estimated at 104°F (40°C).

What are the most humid months?

August and September, with an average relative humidity of 77%, are most humid months.

What is the average humidity in September?

In September, the average relative humidity is 77%.

How much does it rain in September?

In South Sanford Heights, during September, the rain falls for 20.8 days and regularly aggregates up to 3.46" (88mm) of precipitation.

When it does not snow?

February through December are months without snowfall.

What is the average length of the day in September?

In South Sanford Heights, Florida, 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 7:03 am and sunset at 7:46 pm. On the last day of the month, sunrise is at 7:17 am and sunset at 7:11 pm EDT.

How many hours of sunshine does South Sanford Heights have in September?

In South Sanford Heights, the average sunshine duration in September is 8.9h.

What are the months with the highest UV index?

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

What is the UV index reading in September?

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

Average temperature in September
South Sanford Heights, FL

Average temperature in September - South Sanford Heights, FL
  • Average high temperature in September: 88°F

The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (67.8°F).

  • Average low temperature in September: 74.3°F

The month with the highest average low temperature is August (76.6°F).
The coldest month (with the lowest average low temperature) is January (52°F).

Average pressure in September
South Sanford Heights, FL

Average pressure in September - South Sanford Heights, FL
  • Average pressure in September: 29.97"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.97"Hg).

Average wind speed in September
South Sanford Heights, FL

Average wind speed in September - South Sanford Heights, FL
  • Average wind speed in September: 5.2mph

The windiest months (with the highest average wind speed) are January, March and April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

Average humidity in September
South Sanford Heights, FL

Average humidity in September - South Sanford Heights, FL
  • Average humidity in September: 77%

The months with the highest relative humidity are August and September (77%).
The month with the lowest relative humidity is March (70%).

Average rainfall in September
South Sanford Heights, FL

Average rainfall in September - South Sanford Heights, FL
  • Average rainfall in September: 3.46"

The wettest month (with the highest rainfall) is August (4.72").
The driest month (with the least rainfall) is March (1.18").

Average rainfall days in September
South Sanford Heights, FL

Average rainfall days in September - South Sanford Heights, FL
  • Average rainfall days in September: 20.8 days

The month with the highest number of rainy days is August (23.8 days).
The month with the least rainy days is January (10.1 days).

Average snowfall in September
South Sanford Heights, FL

Average snowfall in September - South Sanford Heights, FL
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").

Average snowfall days in September
South Sanford Heights, FL

Average snowfall days in September - South Sanford Heights, 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
South Sanford Heights, FL

Average daylight in September / Average sunshine in September - South Sanford 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 18min).

  • Average sunshine in September: 8h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 6h and 12min).

Average sunshine days in September
South Sanford Heights, FL

Average sunshine days in September - South Sanford Heights, FL
  • Average sunshine days in September: 6.6 days

The month with the most sunshine days is January (17.4 days).
The month with the least sunshine days is August (4.3 days).

Average UV index in September
South Sanford Heights, FL

Average UV index in September - South Sanford 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
South Sanford Heights, FL

Average cloud cover in September - South Sanford Heights, FL
  • Average cloud cover in September: 29

The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 27).

Average visibility in September
South Sanford Heights, FL

Average visibility in September - South Sanford 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).

South Sanford Heights, Florida, USA

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