Graysons Landing
Georgia, USA
Long-term weather forecast
Long-term weather forecast

September weather forecast and climate
Graysons Landing, GA

September, the first month of the autumn, in Graysons Landing, is still a warm month, with average temperature varying between 84.7°F (29.3°C) and 64.9°F (18.3°C).

Temperature

In September, the average high-temperature is essentially the same as in August - a moderately hot 84.7°F (29.3°C). In Graysons Landing, Georgia, in September, the average low-temperature is 64.9°F (18.3°C).

Heat index

The average heat index is appraised at a tropical 93.6°F (34.2°C). Take special precautions - heat exhaustion and heat cramps are expected. Heatstroke may occur with lengthy activity.
Note that heat index values are valued for light wind and location in the shade. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature', 'real feel', 'feels like', or 'apparent temperature', is what the temperature feels like to the human body when the air temperature is combined with the relative humidity. This effect is subjective, depending on the activity and individual's heat perception influenced by various reasons (differences in body mass, height, and shape, clothing, metabolic differences). Bear in mind that direct sunshine exposure increases weather impact, and may raise heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are particularly important for children. Children are often less aware of the need to rest and re-hydrate. Thirst is a late sign of dehydration - it is vital to remain hydrated, particularly during prolonged physical activities.

Humidity

In Graysons Landing, the average relative humidity is 74%.

Rainfall

In September, in Graysons Landing, the rain falls for 11.7 days. Throughout September, 1.18" (30mm) of precipitation is accumulated. In Graysons Landing, during the entire year, the rain falls for 148.5 days and collects up to 21.3" (541mm) of precipitation.

Snowfall

March through November are months without snowfall.

Daylight

In September, the average length of the day in Graysons Landing is 12.4h.

Sunshine

The average sunshine in Graysons Landing is 8.6h.

UV index

In September, the average daily maximum UV index is 6. A UV Index reading of 6 to 7 represents a high health hazard from the exposure to the Sun's UV radiation for the average person.
Note: The average daily UV index of 6 transform into the following instructions:
Take precautions and utilize sun safety practices. Protection against the skin and eye damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. 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 Graysons Landing?

In September, the average high-temperature is 84.7°F (29.3°C), and the average low-temperature is 64.9°F (18.3°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), that combines air temperature and relative humidity, in September is calculated to 93.6°F (34.2°C).

What is the average humidity in September in Graysons Landing?

In Graysons Landing, the average relative humidity in September is 74%.

How many days does it rain in September in Graysons Landing?

In September, in Graysons Landing, Georgia, the rain falls for 11.7 days. Throughout September, 1.18" (30mm) of precipitation is accumulated.

When it does not snow in Graysons Landing?

March through November are months without snowfall in Graysons Landing, Georgia.

What is the average length of the day in September in Graysons Landing?

In September, the average length of the day in Graysons Landing, Georgia, is 12.4h.

How long on average sun shines in September in Graysons Landing?

The average sunshine in September is 8.6h.

What is the UV index intensity in September in Graysons Landing?

In September, the average daily maximum UV index in Graysons Landing is 6. A UV Index reading of 6 to 7 represents a high health threat from the exposure to the Sun's UV rays.
Average temperature in September - Graysons Landing, GA
  • Average high temperature in September: 84.7°F

The warmest month (with the highest average high temperature) is July (89.8°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in September: 64.9°F

The month with the highest average low temperature is July (70.3°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

Average humidity in September - Graysons Landing, GA
  • Average humidity in September: 74%

The month with the highest relative humidity is December (78%).
Months with the lowest relative humidity are October and November (72%).

Average rainfall in September - Graysons Landing, GA
  • Average rainfall in September: 1.18"

The wettest month (with the highest rainfall) is July (2.8").
The driest month (with the least rainfall) is October (1.02").

Average rainfall days in September - Graysons Landing, GA
  • Average rainfall days in September: 11.7 days

The month with the highest number of rainy days is August (20.8 days).
The month with the least rainy days is November (7.1 days).

Average snowfall in September - Graysons Landing, GA
  • Average snowfall in September: 0"

Months with the highest snowfall are January and February (0.2").
Months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in September - Graysons Landing, GA
  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is January (0.8 days).
Months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).

Average daylight in September / Average sunshine in September - Graysons Landing, GA
  • Average daylight in September: 12.4h

The month with the longest days is June (Average daylight: 14.3h).
The month with the shortest days is December (Average daylight: 10h).

  • Average sunshine in September: 8.6h

Months with the most sunshine are June and July (Average sunshine: 10.4h).
The month with the least sunshine is December (Average sunshine: 5.1h).

Average UV index in September - Graysons Landing, GA
  • Average UV index in September: 6

The month with the highest UV index is June (UV index 7).
Months with the lowest UV index are January, February and December (UV index 3).