September weather forecast
Charlotteville, GA

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Weather in September

The first month of the autumn, September, is still a warm month in Charlotteville, Georgia, with an average temperature ranging between max 85.1°F (29.5°C) and min 68.9°F (20.5°C).

Temperature

The commencement of September brings an average high-temperature of a warm 85.1°F (29.5°C), marking an inconsequential divergence from August. Throughout the nights in September, an average low-temperature of 68.9°F (20.5°C) is noted.

Heat index

For most parts of September, the heat index is calculated to be a fiery hot 95°F (35°C). Undertake extra safety actions, heat cramps and heat exhaustion are expected. Heatstroke may result from lengthy activity.
Factoring in the heat index, values are geared towards shaded areas with light breezes. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'felt air temperature', gives an indication of how one might feel in terms of heat after considering humidity. Factors including metabolic differences, physical activity, and clothing are additional elements that influence the individual's temperature experience. Consider the fact that direct sun exposure can influence how hot one feels, potentially raising the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values hold great significance to children. Children often lack awareness of the importance of taking breaks and rehydrating. The feeling of thirst is a late indication of dehydration, so maintaining hydration, especially during long periods of physical activity, is critical.
The innate cooling system of the human body revolves around perspiration, with the evaporation of sweat being central to this process. A higher relative humidity affects normal body cooling by reducing the evaporation rate, subsequently lowering the rate at which the body cools and increasing the perception of heat. Overheating and dehydration threats arise when heat gain goes beyond what the body can comfortably shed.

Humidity

The average relative humidity in September is 76%.

Rainfall

In Charlotteville, Georgia, during September, the rain falls for 16.6 days and regularly aggregates up to 2.2" (56mm) of precipitation. In Charlotteville, Georgia, during the entire year, the rain falls for 176.9 days and collects up to 33.62" (854mm) of precipitation.

Snowfall

February through December are months without snowfall.

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of September, sunrise is at 7:05 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:15 pm EDT.

Sunshine

In Charlotteville, the average sunshine in September is 8.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum UV index of 6 during September translates into these guidelines:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. Stay out of direct sunlight and seek shade between 10 a.m. and 4 p.m., when UV radiation is strongest, but remember that shade devices may not offer full sun protection. To cut down UV radiation exposure by about half, sport a wide-brim hat.
Updated: Jun 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot does it get in September?

In Charlotteville, 85.1°F (29.5°C) is the average high-temperature and 68.9°F (20.5°C) is the average low-temperature during September. The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 95°F (35°C).

What is the average humidity in September in Charlotteville?

The average relative humidity in September is 76%.

How many days does it rain in September?

In Charlotteville, in September, it is raining for 16.6 days, with typically 2.2" (56mm) of accumulated precipitation.

When it does not snow?

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

What is the average length of the day in September?

The average day length in September is 12h and 21min.

When are sunrise and sunset in September?

In September, on the first day of the month, sunrise is at 7:05 am and sunset at 7:53 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:15 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration is 8.6h.

What is the UV index reading in September?

The average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high health risk 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
Charlotteville, GA

Average temperature in September - Charlotteville, GA
  • Average high temperature in September: 85.1°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (57.6°F).

  • Average low temperature in September: 68.9°F

The months with the highest average low temperature are July and August (73.4°F).
The coldest month (with the lowest average low temperature) is January (41.2°F).

Average pressure in September
Charlotteville, GA

Average pressure in September - Charlotteville, GA
  • Average pressure in September: 29.99"Hg

The month with the highest atmospheric pressure is January (30.15"Hg).
The months with the lowest atmospheric pressure are June and August (29.98"Hg).

Average wind speed in September
Charlotteville, GA

Average wind speed in September - Charlotteville, GA
  • Average wind speed in September: 6mph

The windiest months (with the highest average wind speed) are March and April (7.8mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in September
Charlotteville, GA

Average humidity in September - Charlotteville, GA
  • Average humidity in September: 76%

The month with the highest relative humidity is August (77%).
The months with the lowest relative humidity are January and November (71%).

Average rainfall in September
Charlotteville, GA

Average rainfall in September - Charlotteville, GA
  • Average rainfall in September: 2.2"

The wettest month (with the highest rainfall) is August (4.13").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in September
Charlotteville, GA

Average rainfall days in September - Charlotteville, GA
  • Average rainfall days in September: 16.6 days

The month with the highest number of rainy days is July (23.4 days).
The month with the least rainy days is November (8.2 days).

Average snowfall in September
Charlotteville, GA

Average snowfall in September - Charlotteville, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is January (0.08").
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
Charlotteville, GA

Average snowfall days in September - Charlotteville, GA
  • Average snowfall days in September: 0 days

The months with the highest number of snowfall days are January and February (0.2 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October, November and December (0 days).

Average daylight in September /
Average sunshine in September
Charlotteville, GA

Average daylight in September / Average sunshine in September - Charlotteville, GA
  • Average daylight in September: 12h and 2min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in September
Charlotteville, GA

Average sunshine days in September - Charlotteville, GA
  • Average sunshine days in September: 10.2 days

The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is August (4.4 days).

Average UV index in September
Charlotteville, GA

Average UV index in September - Charlotteville, GA
  • Average UV index in September: 6

The months with the highest UV index are May, June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in September
Charlotteville, GA

Average cloud cover in September - Charlotteville, GA
  • Average cloud cover in September: 32

The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 29).

Average visibility in September
Charlotteville, GA

Average visibility in September - Charlotteville, GA
  • 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).

Charlotteville, Georgia, USA

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