September weather forecastNorthwest Harbor, GA
September
Weather in September
September, the first month of the autumn in Northwest Harbor, is also a moderately hot month, with an average temperature ranging between min 64.2°F (17.9°C) and max 83.1°F (28.4°C).Temperature
September implies a soft temperature shift, with average high-temperatures reducing from August's hot 88.5°F (31.4°C) to a moderately hot 83.1°F (28.4°C). Northwest Harbor, during September, witnesses an average low-temperature of 64.2°F (17.9°C).Heat index
For September, the heat index is computed to be a hot 89.6°F (32°C). Long-standing exposure coupled with ongoing activity could result in exhaustion, possibly causing heat cramps.From a standpoint of the heat index, values pertain to shaded conditions and mild breezes. Direct sunlight can potentially boost the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'apparent temperature' or 'real feel', is a measure of how hot it feels when the actual air humidity is factored in. Additional factors encompassing metabolic differences, the level of physical activity, and clothing can impact the individual's perception of temperature. Keep it in mind, direct sunlight can augment the heat you experience, possibly pushing the heat index up by 15 Fahrenheit (8 Celsius) degrees. Heat index values remain especially vital for babies and toddlers. Kids generally face higher risks than adults as they sweat less. Along with their large skin surface compared to their small bodies and higher heat production due to their activities, their vulnerability is increased.
Humidity
The months with the lowest humidity are July through September, with an average relative humidity of 71%.Rainfall
In Northwest Harbor, in September, it is raining for 13.2 days, with typically 2.6" (66mm) of accumulated precipitation. In Northwest Harbor, during the entire year, the rain falls for 180.4 days and collects up to 43.11" (1095mm) of precipitation.Snowfall
In Northwest Harbor, Georgia, snow does not fall in April through October.Daylight
The average length of the day in September is 12h and 22min.On the first day of September, sunrise is at 7:10 am and sunset at 8:01 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 7:21 pm EDT.
Sunshine
In September, the average sunshine is 8.5h.UV index
In September, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In September, a daily UV index of 5 turns into the following recommendations:
Be vigilant - Preventing sunburn is recommended. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Sun-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in September
Northwest Harbor, 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 pressure in September
Northwest Harbor, GA
- Average pressure in September: 30.03"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.99"Hg).
Average wind speed in September
Northwest Harbor, GA
- Average wind speed in September: 4.9mph
The windiest month (with the highest average wind speed) is January (7.8mph).
The calmest month (with the lowest average wind speed) is August (4.4mph).
Average humidity in September
Northwest Harbor, GA
- Average humidity in September: 71%
The month with the highest relative humidity is December (78%).
The months with the lowest relative humidity are July, August and September (71%).
Average rainfall in September
Northwest Harbor, 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
Northwest Harbor, 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
Northwest Harbor, GA
- Average snowfall in September: 0"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in September
Northwest Harbor, GA
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is February (1.7 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in September /
Average sunshine in September
Northwest Harbor, GA
- Average daylight in September: 12h and 24min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in September: 8h and 30min
The months with the most sunshine are June and July (Average sunshine: 10h and 30min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in September
Northwest Harbor, GA
- Average sunshine days in September: 15.5 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in September
Northwest Harbor, GA
- Average UV index in September: 5
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in September
Northwest Harbor, GA
- Average cloud cover in September: 32
The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is June (Cloud cover 30).
Average visibility in September
Northwest Harbor, 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).
