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
The start of September comes with a small reduction in the average high-temperature, subtly receding from a tropical 88.5°F (31.4°C) in August to a moderately hot 83.1°F (28.4°C). During the nights in September, Northwest Harbor observes an average low-temperature of 64.2°F (17.9°C).Heat index
The heat index value during September is estimated at a hot 89.6°F (32°C). Enduring exposure and continuous activity might cause a feeling of tiredness and induce heat cramps.Given the heat index, its values are aligned with shaded sites and gentle winds. Uninterrupted exposure to the sun may boost the heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', combines both the air temperature and the humidity level to give a perceived human temperature. Depending on the activity and the individual's heat perception, which may vary due to factors including wind, clothing, and metabolic variations, this effect remains subjective. Sunshine, when direct, has the potential to intensify weather effects, leading to an increase in the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are highly important for children. In general, children are more at risk than adults because they sweat less. Furthermore, the large skin surface compared to their small bodies and the high heat production due to their actions contribute to this vulnerability.
Humidity
July through September, with an average relative humidity of 71%, are the least humid months in Northwest Harbor.Rainfall
In Northwest Harbor, in September, during 13.2 rainfall days, 2.6" (66mm) of precipitation is typically accumulated. In Northwest Harbor, 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.Daylight
In Northwest Harbor, the average length of the day in September is 12h and 22min.On the first day of the month, sunrise is at 7:10 am and sunset at 8:01 pm. On the last day of September, sunrise is at 7:30 am and sunset at 7:21 pm EDT.
Sunshine
In September, the average sunshine in Northwest Harbor, Georgia, is 8.5h.UV index
In Northwest Harbor, the average daily maximum UV index in September is 5. A UV Index value of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: The daily maximum UV index of 5 in September interprets into the following advice:
Adopt protective measures - Suggestions to resist sunburn are offered. The solar radiation around mid-day is intense; avoid the Sun and stay safe. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes.
Frequently asked questions
How hot does it get in Northwest Harbor in September?
What are the least humid months in Northwest Harbor?
What is the average humidity in September in Northwest Harbor?
How many days does it rain in September in Northwest Harbor?
When it does not snow in Northwest Harbor?
How many hours of daylight does Northwest Harbor have in September?
What time are sunrise and sunset in September in Northwest Harbor?
How long on average sun shines in September in Northwest Harbor?
How high is the UV index in September in Northwest Harbor?
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 2min
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 3min
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).
Northwest Harbor, Georgia, USA
Weather forecast for your location
2. Allow the app to use your location
