Contents
- Weather in September
- Frequently asked questions
- Average temperature in September
- Average pressure in September
- Average wind speed in September
- Average humidity in September
- Average rainfall in September
- Average rainfall days in September
- Average snowfall in September
- Average snowfall days in September
- Average daylight in September
- Average sunshine in September
- Average sunshine days in September
- Average UV index in September
- Average cloud cover in September
- Average visibility in September
Weather in September
Temperature
Entering September, the average high-temperature is recorded at a moderately hot 85.6°F (29.8°C), exhibiting a minimal shift from August's 90.5°F (32.5°C). Harlem, during September nights, observes an average temperature of 67.1°F (19.5°C).Heat index
The heat index value during September is appraised at a very hot 95°F (35°C). Adopt heightened preventive measures, heat exhaustion and heat cramps are probable. Persistent activity could lead to heatstroke.It is emphasized that the heat index's values are meant for shaded zones with mild winds. The heat index has the possibility to be enhanced by 15 Fahrenheit (8 Celsius) degrees when there is direct sun exposure.
Note: The heat index, also known as 'apparent temperature' or 'real feel', arises from combining readings of air temperature and relative moisture content. The experience of temperature can be subjective, varying based on the individual's activity and heat perception, influenced by factors like wind, attire, and metabolic variations. It is noteworthy to mention that direct sunlight exposure can augment the felt temperature, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are largely significant for babies and toddlers. In general, younger individuals are at greater risk than adults because they tend to sweat less. Also, having a larger skin surface to body size ratio and greater heat production due to their active behavior contribute to this danger.
When the body gets too warm, it perspires, leading to sweat evaporation which cools it down. In the presence of elevated relative humidity, the evaporation rate decreases. This reduction leads to increased body heat retention compared to conditions of dry air. If heat absorption exceeds the body's cooling ability, body temperature can elevate, resulting in potential thermal illnesses.
Humidity
The average relative humidity in September in Harlem is 71%.Rainfall
September is the month with the least rainfall. Rain falls for 13.5 days and accumulates 1.93" (49mm) of precipitation.Snowfall
In Harlem, snow does not fall in April through November.Daylight
In September, the average length of the day in Harlem is 12h and 22min.On the first day of September in Harlem, sunrise is at 7:03 am and sunset at 7:54 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 7:14 pm EDT.
Sunshine
In September, the average sunshine is 8.6h.UV index
In Harlem, Georgia, the average daily maximum UV index in September is 6. A UV Index estimate of 6 to 7 represents a high threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: An average UV index of 6 in September transforms into this advice:
Persist with precautions and heed sun safety advice. Prevention of sunburn is compulsory. Seek shade and minimize exposure to direct Sun in a period between 10 a.m. and 4 p.m. when UV radiation is most intense; keep in mind that shade structures like parasols or canopies do not provide perfect sun protection. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Frequently asked questions
How hot is September in Harlem?
What is the average humidity in September in Harlem?
What is the driest month in Harlem?
How many days does it rain in September in Harlem?
When it does not snow in Harlem?
What is the average length of the day in September in Harlem?
What time are sunrise and sunset in September in Harlem?
How many hours of sunshine does Harlem have in September?
What is the UV index reading in September in Harlem?
Average temperature in September
Harlem, GA
- Average high temperature in September: 85.6°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (53.6°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is July (72.9°F).
The coldest month (with the lowest average low temperature) is January (37.2°F).
Average pressure in September
Harlem, GA
- Average pressure in September: 30.01"Hg
The months with the highest atmospheric pressure are January, November and December (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in September
Harlem, GA
- Average wind speed in September: 5.8mph
The windiest months (with the highest average wind speed) are January, February, March and April (8mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in September
Harlem, GA
- Average humidity in September: 71%
The month with the highest relative humidity is December (76%).
The months with the lowest relative humidity are July and November (70%).
Average rainfall in September
Harlem, GA
- Average rainfall in September: 1.93"
The wettest month (with the highest rainfall) is August (3.54").
The driest month (with the least rainfall) is September (1.93").
Average rainfall days in September
Harlem, GA
- Average rainfall days in September: 13.5 days
The months with the highest number of rainy days are July and August (19.5 days).
The month with the least rainy days is November (8.7 days).
Average snowfall in September
Harlem, 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
Harlem, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.8 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
Harlem, GA
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 18min).
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 24min).
Average sunshine days in September
Harlem, GA
- Average sunshine days in September: 14.8 days
The month with the most sunshine days is October (20.1 days).
The month with the least sunshine days is August (8.5 days).
Average UV index in September
Harlem, GA
- Average UV index in September: 6
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January, February and December (UV index 3).
Average cloud cover in September
Harlem, GA
- Average cloud cover in September: 30
The month with the most cloud cover is December (Cloud cover 42).
The month with the least cloud cover is October (Cloud cover 27).
Average visibility in September
Harlem, 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).
Harlem, Georgia, USA
Weather forecast for your location
2. Allow the app to use your location
