September weather forecast
Saint Leo, FL

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Weather in September

September, the first month of the autumn in Saint Leo, is also a hot month, with an average temperature ranging between max 88.2°F (31.2°C) and min 73.8°F (23.2°C).

Temperature

In the transition from August to September, Saint Leo reports an average high-temperature of a still hot 88.2°F (31.2°C), indicating a close resemblance to the prior month. During September, the average low-temperature in Saint Leo, Florida, is a warm 73.8°F (23.2°C).

Heat index

For September, the heat index is appraised at an extremely hot 105.8°F (41°C). Undertake additional precautions, heat cramps and heat exhaustion could happen. Heatstroke could occur from sustained activity.
In the scope of the heat index, its values resonate with shade and light wind conditions. Heat index values have the potential to be boosted by 15 Fahrenheit (8 Celsius) degrees due to direct sunlight.
Note: The heat index, also known as 'apparent temperature' or 'feels like', measures the perceived warmth when incorporating the humidity present in the air. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are highly important for children. Youngsters typically face more danger than adults since they sweat less. Their larger skin surface compared to their small bodies and heightened heat production from their activities augment their vulnerability.
In response to overheating, the human body perspires to cool down, mainly through the evaporation of sweat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

August and September, with an average relative humidity of 79%, are the most humid months in Saint Leo, Florida.

Rainfall

In September, the rain falls for 24.4 days. Throughout September, 4.45" (113mm) of precipitation is accumulated. In Saint Leo, Florida, during the entire year, the rain falls for 200.6 days and collects up to 40.39" (1026mm) of precipitation.

Snowfall

February through December are months without snowfall in Saint Leo.

Daylight

In September, the average length of the day in Saint Leo is 12h and 19min.
On the first day of September, sunrise is at 7:07 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:15 pm EDT.

Sunshine

In Saint Leo, the average sunshine in September is 8.9h.

UV index

May through July and September, with an average maximum UV index of 7, are months with the highest UV index in Saint Leo, Florida. A UV Index value of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for the average person.
Note: In September, an average UV index of 7 transforms into the following instructions:
Persist in precautions and follow sun safety policies. Keeping sunburn at bay is imperative. Limit your exposure to the sun's UV radiation, which is strongest between 10 a.m. and 4 p.m., and note that parasols or canopies may not provide full sun protection. A hat with a broad brim is indispensable, filtering out up to half of UV rays.
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Frequently asked questions

Is it hot in Saint Leo during September?

During September, Saint Leo experiences an average high-temperature of 88.2°F (31.2°C) and a low-temperature of 73.8°F (23.2°C). In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is appraised at 105.8°F (41°C).

What are the most humid months in Saint Leo?

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

What is the average humidity in September in Saint Leo?

The average relative humidity in September in Saint Leo, Florida, is 79%.

How many days does it rain in September in Saint Leo?

In Saint Leo, during September, the rain falls for 24.4 days and regularly aggregates up to 4.45" (113mm) of precipitation.

When it does not snow in Saint Leo?

February through December are months without snowfall in Saint Leo.

What is the average length of the day in September in Saint Leo?

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

What time are sunrise and sunset in September in Saint Leo?

On the first day of September in Saint Leo, sunrise is at 7:07 am and sunset at 7:49 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 7:15 pm EDT.

How many hours of sunshine does Saint Leo have in September?

In September, the average sunshine duration in Saint Leo is 8.9h.

What is the month with the highest UV index in Saint Leo?

The months with the highest UV index in Saint Leo, Florida, are May through July and September, with an average maximum UV index of 7.

What is the UV index reading in September in Saint Leo?

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

Average temperature in September
Saint Leo, FL

Average temperature in September - Saint Leo, 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 (67.6°F).

  • Average low temperature in September: 73.8°F

The month with the highest average low temperature is August (76.3°F).
The coldest month (with the lowest average low temperature) is January (50.2°F).

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Average pressure in September
Saint Leo, FL

Average pressure in September - Saint Leo, FL
  • Average pressure in September: 29.96"Hg

The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is September (29.96"Hg).

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Average wind speed in September
Saint Leo, FL

Average wind speed in September - Saint Leo, FL
  • Average wind speed in September: 4.9mph

The windiest months (with the highest average wind speed) are March and April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

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Average humidity in September
Saint Leo, FL

Average humidity in September - Saint Leo, 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 (72%).

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Average rainfall in September
Saint Leo, FL

Average rainfall in September - Saint Leo, FL
  • Average rainfall in September: 4.45"

The wettest month (with the highest rainfall) is August (7.17").
The driest months (with the least rainfall) are February, March and November (1.42").

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Average rainfall days in September
Saint Leo, FL

Average rainfall days in September - Saint Leo, FL
  • Average rainfall days in September: 24.4 days

The month with the highest number of rainy days is August (28.8 days).
The month with the least rainy days is December (9.5 days).

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Average snowfall days in September
Saint Leo, FL

Average snowfall days in September - Saint Leo, 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
Saint Leo, FL

Average daylight in September / Average sunshine in September - Saint Leo, 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 5min

The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is December (Average sunshine: 6h and 18min).

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Average sunshine days in September
Saint Leo, FL

Average sunshine days in September - Saint Leo, FL
  • Average sunshine days in September: 3.8 days

The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is August (0.8 days).

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Average UV index in September
Saint Leo, FL

Average UV index in September - Saint Leo, FL
  • Average UV index in September: 7

The months with the highest UV index are May, June, July 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
Saint Leo, FL

Average cloud cover in September - Saint Leo, FL
  • Average cloud cover in September: 31

The months with the most cloud cover are February and December (Cloud cover 35).
The month with the least cloud cover is May (Cloud cover 27).

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Average visibility in September
Saint Leo, FL

Average visibility in September - Saint Leo, 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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Saint Leo, Florida, USA

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