September weather forecast
Washington, GA

Share

Weather in September

September, the first month of the autumn in Washington, is also a moderately hot month, with temperature in the range of an average high of 85.3°F (29.6°C) and an average low of 65.3°F (18.5°C).

Temperature

The arrival of September coincides with an average high-temperature of a warm 85.3°F (29.6°C), indicating a minimal shift from August's 90.1°F (32.3°C). In Washington, in September, the average low-temperature is a refreshing 65.3°F (18.5°C).

Heat index

The heat index value during September is estimated at a torrid 95°F (35°C). Heightened safety actions are necessary, heat cramps and heat exhaustion are probable. Persistent activity may lead to heatstroke.
When assessing, remember that heat index measurements are for light winds and shaded spots. Direct exposure to sunlight could raise the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', blends air temperature and moisture content to represent the felt temperature to humans. The influence of weather is personal, with varied individuals experiencing it differently due to differences in body mass, stature, and physical exertion levels. Direct sun exposure is noteworthy in its ability to escalate the felt temperature, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values hold particular importance for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
The evaporation of sweat is a natural cooling mechanism of the human body, facilitated by perspiration. An increase in relative humidity retards evaporation, subsequently reducing the body's heat removal rate and leading to a sensation of being overly warm. Elevated heat gain compared to the body's release capability poses risks of dehydration and potential overheating.

Humidity

In Washington, Georgia, the average relative humidity in September is 72%.

Rainfall

September is the month with the least rainfall. Rain falls for 13.4 days and accumulates 1.89" (48mm) of precipitation.

Snowfall

In Washington, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 22min.
On the first day of the month, sunrise is at 7:05 am and sunset at 7:56 pm. On the last day of September, sunrise is at 7:25 am and sunset at 7:16 pm EDT.

Sunshine

In September, the average sunshine is 8.6h.

UV index

In Washington, the average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 in September interprets into the following recommendations:
Continue precautions and advocate sun safety advice. Deterrence of sunburn is indispensable. Seek shade and limit direct Sun exposure between 10 a.m. and 4 p.m., when UV radiation is at its peak, but be aware that not all shade structures provide complete sun protection. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance.
Updated: Jun 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is it in September?

The high-temperature, in September, in Washington, is 85.3°F (29.6°C), while the low-temperature averages to 65.3°F (18.5°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 95°F (35°C).

What is the average humidity in September?

In September, the average relative humidity is 72%.

What is the driest month?

September is the month with the least rainfall in Washington. Rain falls for 13.4 days and accumulates 1.89" (48mm) of precipitation.

How much does it rain in September?

In Washington, during September, the rain falls for 13.4 days and regularly aggregates up to 1.89" (48mm) of precipitation.

When it does not snow in Washington?

April through November are months without snowfall in Washington.

How many hours of daylight does Washington have in September?

In September, the average day length in Washington is 12h and 22min.

When is the sunrise / sunset in September?

On the first day of September, sunrise is at 7:05 am and sunset at 7:56 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 7:16 pm EDT.

How long on average sun shines in September?

In September, the average sunshine duration in Washington is 8.6h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation.
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
Washington, GA

Average temperature in September - Washington, GA
  • Average high temperature in September: 85.3°F

The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (52.3°F).

  • Average low temperature in September: 65.3°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (36.1°F).

Average pressure in September
Washington, GA

Average pressure in September - Washington, GA
  • Average pressure in September: 30.02"Hg

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

Average wind speed in September
Washington, GA

Average wind speed in September - Washington, GA
  • Average wind speed in September: 5.2mph

The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in September
Washington, GA

Average humidity in September - Washington, GA
  • Average humidity in September: 72%

The month with the highest relative humidity is December (77%).
The months with the lowest relative humidity are July and October (71%).

Average rainfall in September
Washington, GA

Average rainfall in September - Washington, GA
  • Average rainfall in September: 1.89"

The wettest month (with the highest rainfall) is August (4.02").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in September
Washington, GA

Average rainfall days in September - Washington, GA
  • Average rainfall days in September: 13.4 days

The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in September
Washington, GA

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

The month with the highest snowfall is January (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Washington, GA

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

The month with the highest number of snowfall days is January (1 days).
The 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
Washington, GA

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

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in September: 8h and 4min

The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is December (Average sunshine: 5h and 18min).

Average sunshine days in September
Washington, GA

Average sunshine days in September - Washington, GA
  • Average sunshine days in September: 14.5 days

The month with the most sunshine days is October (20.3 days).
The month with the least sunshine days is July (7.3 days).

Average UV index in September
Washington, GA

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

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is January (UV index 2).

Average cloud cover in September
Washington, GA

Average cloud cover in September - Washington, GA
  • Average cloud cover in September: 31

The months with the most cloud cover are February and December (Cloud cover 42).
The months with the least cloud cover are June and October (Cloud cover 29).

Average visibility in September
Washington, GA

Average visibility in September - Washington, 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).

Washington, Georgia, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location