September weather forecast
Port Sutton, FL

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Weather in September

The first month of the autumn, September, is still a hot month in Port Sutton, Florida, with temperature in the range of an average high of 88.7°F (31.5°C) and an average low of 75.4°F (24.1°C).

Temperature

September ushers in an average high-temperature of a still hot 88.7°F (31.5°C), aligning closely with the preceding month. Throughout the month of September, Port Sutton sees a steady low-temperature average of 75.4°F (24.1°C).

Heat index

For September, the heat index is calculated to be an extremely hot 105.8°F (41°C). Adopt special protective actions against heat exhaustion and heat cramps. Long-duration activity risks heatstroke.
It is crucial to understand that heat index figures are for shade and gentle wind conditions. 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 a measure that combines air temperature and relative humidity into a single value that indicates how hot the weather feels. The influence of weather is personal, with a diverse population experiencing it differently due to differences in body mass, stature, and degree of activity. In direct sunlight, the heat's impact can be heightened, potentially leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly critical to babies and toddlers. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
Perspiration is the body's default response to elevated temperatures, as it promotes the evaporation of sweat to achieve cooling. When the air contains significant moisture, the efficiency of the evaporation process decreases, preventing the body from cooling down effectively and creating a feeling of overheating. When the body's heat gain surpasses its removal capacity, body temperature starts to climb, leading to potential heat-related ailments.

Humidity

September and December, with an average relative humidity of 76%, are the most humid months.

Rainfall

In Port Sutton, in September, it is raining for 18.5 days, with typically 1.06" (27mm) of accumulated precipitation. Throughout the year, there are 148.4 rainfall days, and 12.32" (313mm) of precipitation is accumulated.

Daylight

In September, the average length of the day is 12h and 19min.
On the first day of September, sunrise is at 7:08 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

Sunshine

The average sunshine in September is 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 reading of 6 to 7 represents a high health risk from unsafe exposure to UV radiation for ordinary individuals.
Note: The average daily UV index of 7 in September transforms into the following instructions:
Avoid excessive sunlight. Those with lighter skin may experience burning in less than 20 minutes. 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. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.

Frequently asked questions

How hot is September?

The average high-temperature and low-temperature during September are 88.7°F (31.5°C) and 75.4°F (24.1°C) respectively. The average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 105.8°F (41°C).

What are the most humid months?

The months with the highest humidity are September and December, with an average relative humidity of 76%.

What is the average humidity in September?

The average relative humidity in September is 76%.

How many days does it rain in September in Port Sutton?

In Port Sutton, in September, during 18.5 rainfall days, 1.06" (27mm) of precipitation is typically accumulated.

What is the average length of the day in September?

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

When is the sunrise / sunset in September?

On the first day of September in Port Sutton, sunrise is at 7:08 am and sunset at 7:50 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 7:16 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9h.

When is the highest UV index?

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

How high is the UV index in September?

In September, the average daily maximum UV index is 7. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Port Sutton, FL

Average temperature in September - Port Sutton, FL
  • Average high temperature in September: 88.7°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 (68.5°F).

  • Average low temperature in September: 75.4°F

The month with the highest average low temperature is August (78.1°F).
The coldest month (with the lowest average low temperature) is January (52.7°F).

Average pressure in September
Port Sutton, FL

Average pressure in September - Port Sutton, 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
Port Sutton, FL

Average wind speed in September - Port Sutton, FL
  • Average wind speed in September: 5.9mph

The windiest month (with the highest average wind speed) is March (7.6mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).

Average humidity in September
Port Sutton, FL

Average humidity in September - Port Sutton, FL
  • Average humidity in September: 76%

The months with the highest relative humidity are September and December (76%).
The months with the lowest relative humidity are March and May (70%).

Average rainfall in September
Port Sutton, FL

Average rainfall in September - Port Sutton, FL
  • Average rainfall in September: 1.06"

The wettest month (with the highest rainfall) is July (2.48").
The driest month (with the least rainfall) is March (0.24").

Average rainfall days in September
Port Sutton, FL

Average rainfall days in September - Port Sutton, FL
  • Average rainfall days in September: 18.5 days

The month with the highest number of rainy days is July (22.8 days).
The month with the least rainy days is January (4.9 days).

Average daylight in September /
Average sunshine in September
Port Sutton, FL

Average daylight in September / Average sunshine in September - Port Sutton, 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: 9h and 0min

The month with the most sunshine is May (Average sunshine: 11h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 24min).

Average sunshine days in September
Port Sutton, FL

Average sunshine days in September - Port Sutton, FL
  • Average sunshine days in September: 8.4 days

The month with the most sunshine days is January (24.2 days).
The month with the least sunshine days is July (4.7 days).

Average UV index in September
Port Sutton, FL

Average UV index in September - Port Sutton, 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
Port Sutton, FL

Average cloud cover in September - Port Sutton, FL
  • Average cloud cover in September: 29

The months with the most cloud cover are January and December (Cloud cover 31).
The month with the least cloud cover is May (Cloud cover 23).

Average visibility in September
Port Sutton, FL

Average visibility in September - Port Sutton, 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).

Port Sutton, Florida, USA

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