Gay Lan
Georgia, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Gay Lan, GA

The first month of the autumn, September, is still a warm month in Gay Lan, Georgia, with average temperature varying between 83.1°F (28.4°C) and 64.2°F (17.9°C).

Temperature

In Gay Lan, Georgia, the average high-temperature marginally drops, from a tropical 88.5°F (31.4°C) in August, to a moderately hot 83.1°F (28.4°C). In September, in Gay Lan, the average low-temperature is 64.2°F (17.9°C).

Heat index

In September, the average heat index is appraised at a tropical 88.9°F (31.6°C). Constant exposure and activity lead to possible fatigue. Prolonged exercise may result in heat cramps.
Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like', 'felt air temperature', 'real feel', or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (pregnancy, metabolic differences, differences in body mass, height, and shape). Be aware that direct exposure to sunlight increases heat impact, and may raise the heat index additionally, by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are especially crucial for babies and toddlers. Young children are generally more endangered than adults, as they usually less sweat. And also, due to larger skin surface relative to their small bodies and higher heat production as a result of their activity.

Humidity

Months with the lowest humidity are July through September, with an average relative humidity of 71%.

Rainfall

In Gay Lan, during September, the rain falls for 13.2 days and regularly aggregates up to 2.6" (66mm) of precipitation. In Gay Lan, Georgia, during the entire year, the rain falls for 180.4 days and collects up to 43.11" (1095mm) of precipitation.

Snowfall

April through October are months without snowfall in Gay Lan, Georgia.

Daylight

The average length of the day is 12.4h.

Sunshine

The average sunshine in September is 8.5h.

UV index

In September, the average daily maximum UV index is 5. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to the Sun's UV rays for average individuals.
Note: In September, the average maximum UV index of 5 translate into the following recommendations:
Take precautions - Protection against sun damage is advised. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes.

What is the temperature in September in Gay Lan?

In Gay Lan, Georgia, in September, the average high-temperature is 83.1°F (28.4°C), and the average low-temperature is 64.2°F (17.9°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), that represents influence of the relative humidity to air temperaure, in September is evaluated at 88.9°F (31.6°C).

What is the least humid month in Gay Lan?

July through September, with an average relative humidity of 71%, are the least humid months in Gay Lan, Georgia.

What is the average humidity in September in Gay Lan?

The average relative humidity in September in Gay Lan is 71%.

How much does it rain in Gay Lan in September?

In September, in Gay Lan, the rain falls for 13.2 days. Throughout September, 2.6" (66mm) of precipitation is accumulated.

When it does not snow in Gay Lan?

In Gay Lan, Georgia, snow does not fall in April through October.

What is the average length of the day in September in Gay Lan?

In Gay Lan, the average length of the day in September is 12.4h.

How long on average sun shines in September in Gay Lan?

In Gay Lan, Georgia, the average sunshine in September is 8.5h.

How high is the UV index in September in Gay Lan?

In Gay Lan, the average daily maximum UV index in September is 5. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to the UV radiation.
Average temperature in September - Gay Lan, GA
  • Average high temperature in September: 83.1°F

The warmest month (with the highest average high temperature) is July (89.6°F).
The month with the lowest average high temperature is January (49.1°F).

  • Average low temperature in September: 64.2°F

The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (33.8°F).

Average humidity in September - Gay Lan, GA
  • Average humidity in September: 71%

The month with the highest relative humidity is December (78%).
Months with the lowest relative humidity are July, August and September (71%).

Average rainfall in September - Gay Lan, GA
  • Average rainfall in September: 2.6"

The wettest month (with the highest rainfall) is August (4.49").
The driest month (with the least rainfall) is October (2.28").

Average rainfall days in September - Gay Lan, GA
  • Average rainfall days in September: 13.2 days

The month with the highest number of rainy days is July (20.1 days).
The month with the least rainy days is October (10 days).

Average snowfall in September - Gay Lan, GA
  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.14").
Months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September - Gay Lan, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (1.7 days).
Months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in September / Average sunshine in September - Gay Lan, GA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.4h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in September: 8.5h

Months with the most sunshine are June and July (Average sunshine: 10.5h).
The month with the least sunshine is December (Average sunshine: 5h).

Average UV index in September - Gay Lan, GA
  • Average UV index in September: 5

Months with the highest UV index are May, June, July and August (UV index 6).
Months with the lowest UV index are January and December (UV index 2).