September weather forecast
Bartow, FL

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Weather in September

The first month of the autumn, September, is still a tropical month in Bartow, Florida, with an average temperature fluctuating between 88°F (31.1°C) and 73.6°F (23.1°C).

Temperature

The ushering in of September brings an average high-temperature of a still tropical 88°F (31.1°C), closely mirroring the 90°F (32.2°C) of August. September nights in Bartow observe an average temperature dip to a moderately hot 73.6°F (23.1°C).

Heat index

September's heat index is evaluated at a scorching 105.8°F (41°C). Take more safety measures, heat exhaustion and heat cramps are potential outcomes. Persistent activity might lead to heatstroke.
In reference to the heat index, it's for places in shade and with a slight wind. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', integrates the air's temperature and its humidity to showcase the felt temperature by people. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. 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 particularly relevant to 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 upsurge in relative humidity affects normal body cooling mechanisms by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Overheating can ensue when the body accumulates more heat than it can release, and dehydration severity may vary.

Humidity

With an average relative humidity of 80%, September is the most humid month in Bartow.

Rainfall

In Bartow, in September, during 20.2 rainfall days, 1.85" (47mm) of precipitation is typically accumulated. In Bartow, during the entire year, the rain falls for 166.5 days and collects up to 19.09" (485mm) of precipitation.

Daylight

In September, the average length of the day in Bartow is 12h and 19min.
On the first day of the month, sunrise is at 7:06 am and sunset at 7:47 pm. On the last day of September, in Bartow, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

Sunshine

In September, the average sunshine is 8.7h.

UV index

May through September, with an average maximum UV index of 7, are months with the highest UV index in Bartow. A UV Index of 6 to 7 symbolizes a high health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: A daily maximum UV index of 7 in September translates into the following instructions:
Fend off overexposure. Sun protection is vital. During the period from 10 a.m. to 4 p.m., UV radiation is highest. Try to avoid direct sunlight during these hours. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
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Frequently asked questions

How hot is it in Bartow in September?

The average high-temperature, in September, in Bartow, is 88°F (31.1°C), while the average low-temperature is 73.6°F (23.1°C). In September, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 105.8°F (41°C).

What is the most humid month in Bartow?

With an average relative humidity of 80%, September is the most humid month.

What is the average humidity in September in Bartow?

In Bartow, the average relative humidity in September is 80%.

How much does it rain in Bartow in September?

In Bartow, Florida, during September, the rain falls for 20.2 days and regularly aggregates up to 1.85" (47mm) of precipitation.

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

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

When are sunrise and sunset in September in Bartow?

On the first day of September in Bartow, sunrise is at 7:06 am and sunset at 7:47 pm. On the last day of the month, sunrise is at 7:20 am and sunset at 7:14 pm EDT.

How long on average sun shines in September in Bartow?

The average sunshine duration in September in Bartow, Florida, is 8.7h.

What are the months with the highest UV index in Bartow?

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

How high is the UV index in September in Bartow?

In Bartow, the average daily maximum UV index in September is 7. A UV Index value of 6 to 7 symbolizes a high health threat 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
Bartow, FL

Average temperature in September - Bartow, FL
  • Average high temperature in September: 88°F

The warmest months (with the highest average high temperature) are July and August (90°F).
The month with the lowest average high temperature is January (69.3°F).

  • Average low temperature in September: 73.6°F

The month with the highest average low temperature is August (75.7°F).
The coldest month (with the lowest average low temperature) is January (51.8°F).

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Average pressure in September
Bartow, FL

Average pressure in September - Bartow, 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).

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Average wind speed in September
Bartow, FL

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

The windiest months (with the highest average wind speed) are January, March and April (6.8mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).

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Average humidity in September
Bartow, FL

Average humidity in September - Bartow, FL
  • Average humidity in September: 80%

The month with the highest relative humidity is September (80%).
The month with the lowest relative humidity is March (71%).

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Average rainfall in September
Bartow, FL

Average rainfall in September - Bartow, FL
  • Average rainfall in September: 1.85"

The wettest month (with the highest rainfall) is August (3.7").
The driest month (with the least rainfall) is March (0.47").

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Average rainfall days in September
Bartow, FL

Average rainfall days in September - Bartow, FL
  • Average rainfall days in September: 20.2 days

The month with the highest number of rainy days is July (24.3 days).
The month with the least rainy days is January (7.4 days).

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

Average daylight in September / Average sunshine in September - Bartow, 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 4min

The months with the most sunshine are May and July (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 6h and 6min).

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Average sunshine days in September
Bartow, FL

Average sunshine days in September - Bartow, FL
  • Average sunshine days in September: 6.7 days

The month with the most sunshine days is January (21.9 days).
The months with the least sunshine days are July and August (4.8 days).

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Average UV index in September
Bartow, FL

Average UV index in September - Bartow, 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).

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Average cloud cover in September
Bartow, FL

Average cloud cover in September - Bartow, FL
  • Average cloud cover in September: 33

The month with the most cloud cover is February (Cloud cover 36).
The month with the least cloud cover is May (Cloud cover 29).

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Average visibility in September
Bartow, FL

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

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