September weather forecast
Sanford, FL

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Boats docked along the shores of Lake Monroe in Sanford, Florida
Boats docked along the shores of Lake Monroe in Sanford, Florida

Weather in September

The first month of the autumn, September, is still a tropical month in Sanford, Florida, with an average temperature varying between 88.3°F (31.3°C) and 74.3°F (23.5°C).

Temperature

The average high-temperature during September is a still tropical 88.3°F (31.3°C), almost matching the conditions of the preceding month. Sanford's September nights cool down to an average low-temperature of 74.3°F (23.5°C).

Heat index

September's average heat index is evaluated at a blistering 105.8°F (41°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
Research indicates the heat index considers values in shaded locales and with light winds. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'real feel' or 'apparent temperature', is found by incorporating humidity levels into the air temperature measurement. This impact is subjective, influenced by the person's physical activity and individual heat perception, affected by factors including wind, attire, and metabolic differences. Always consider that direct sunlight exposure might heighten the heat's effects, pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. Kids are generally in more danger than adults because they perspire less. Their large skin surface area compared to their small bodies and the excessive heat due to their actions raises their risk.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. An increase in relative humidity hinders the body's normal cooling function by reducing evaporation, thereby decreasing the rate of body cooling and enhancing the sense of warmth. If the body retains more heat than it can expel, the increasing temperature can lead to heat-related conditions.

Humidity

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

Rainfall

In Sanford, in September, during 20.6 rainfall days, 3.62" (92mm) of precipitation is typically accumulated. Throughout the year, there are 187.2 rainfall days, and 30.87" (784mm) of precipitation is accumulated.

Snowfall

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

Daylight

The average length of the day in September is 12h and 19min.
On the first day of September in Sanford, 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.

Sunshine

The average sunshine in September is 8.9h.

UV index

In Sanford, the average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health hazard from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Follow precautions and abide by sun safety rules. Deterrence of sunburn is imperative. Make an effort to avoid direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation, and note that objects like parasols or canopies might not offer full sun protection. Tightly woven clothing, when worn loosely, shields effectively against the Sun.
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Frequently asked questions

How hot does it get in Sanford in September?

In September, the average high-temperature and low-temperature in Sanford, Florida, are 88.3°F (31.3°C) and 74.3°F (23.5°C) respectively. The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in September is evaluated at 105.8°F (41°C).

What is the most humid month in Sanford?

The months with the highest humidity in Sanford, Florida, are August and September, with an average relative humidity of 77%.

What is the average humidity in September in Sanford?

The average relative humidity in September in Sanford, Florida, is 77%.

How many days does it rain in September in Sanford?

In Sanford, Florida, in September, during 20.6 rainfall days, 3.62" (92mm) of precipitation is typically accumulated.

When it does not snow in Sanford?

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

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

In Sanford, Florida, the average day length in September is 12h and 19min.

When are sunrise and sunset in September in Sanford?

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, in Sanford, Florida, sunrise is at 7:17 am and sunset at 7:11 pm EDT.

How many hours of sunshine does Sanford have in September?

In September, the average sunshine duration is 8.9h.

How high is the UV index in September in Sanford?

In September, the average daily maximum UV index in Sanford, Florida, is 6. A UV Index value of 6 to 7 symbolizes a high health threat from unprotected exposure to UV radiation.
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
Sanford, FL

Average temperature in September - Sanford, FL
  • Average high temperature in September: 88.3°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 (51.4°F).

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Average pressure in September
Sanford, FL

Average pressure in September - Sanford, 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).

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Average wind speed in September
Sanford, FL

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

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average humidity in September
Sanford, FL

Average humidity in September - Sanford, 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%).

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Average rainfall in September
Sanford, FL

Average rainfall in September - Sanford, FL
  • Average rainfall in September: 3.62"

The wettest month (with the highest rainfall) is August (4.84").
The driest month (with the least rainfall) is March (1.18").

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Average rainfall days in September
Sanford, FL

Average rainfall days in September - Sanford, FL
  • Average rainfall days in September: 20.6 days

The month with the highest number of rainy days is August (24.1 days).
The month with the least rainy days is January (10.1 days).

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Average snowfall in September
Sanford, FL

Average snowfall in September - Sanford, 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").

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Average snowfall days in September
Sanford, FL

Average snowfall days in September - Sanford, 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).

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

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

The month with the longest days is June (Average daylight: 14h and 0min).
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 6min).

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Average sunshine days in September
Sanford, FL

Average sunshine days in September - Sanford, FL
  • Average sunshine days in September: 6 days

The month with the most sunshine days is January (17.6 days).
The month with the least sunshine days is July (3.8 days).

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Average UV index in September
Sanford, FL

Average UV index in September - Sanford, FL
  • Average UV index in September: 6

The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is January (UV index 4).

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Average cloud cover in September
Sanford, FL

Average cloud cover in September - Sanford, FL
  • Average cloud cover in September: 30

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

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Average visibility in September
Sanford, FL

Average visibility in September - Sanford, 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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Sanford, Florida, USA

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