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 unfolding of September shows an average high-temperature of a still tropical 86.9°F (30.5°C), indicating a slight variance from August's 90.3°F (32.4°C). In September, Emerald's temperature tends to fall to an average low of 68°F (20°C) during the night.Heat index
For most parts of September, the heat index is appraised at a sweltering 102.2°F (39°C). Adopt extra preventive measures, the occurrence of heat cramps and heat exhaustion is likely. Heatstroke may follow extended activity.Given the heat index, its values are aligned with shaded sites and gentle winds. Direct sunlight can cause a surge in the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'real feel', evaluates the perceived heat by adding the effect of moisture in the air. The effect of weather is individual, with a variety of people experiencing it differently due to distinctions in body mass, height, and level of activity. One's exposure to direct sunlight has the potential to intensify the heat sensation, increasing the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for children. 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.
The human body has a built-in cooling mechanism through perspiration; evaporating sweat dissipates the excess heat. In situations of high air temperature combined with high humidity (significant heat index), the body's ability to perspire is reduced, heightening the sense of warmth. Heat-related complications, like dehydration, can manifest if the body's heat gain exceeds its dissipation capacity.
Humidity
The average relative humidity in September is 78%.Rainfall
In September, the rain falls for 16.3 days. Throughout September, 1.73" (44mm) of precipitation is accumulated. Throughout the year, there are 159.9 rainfall days, and 22.83" (580mm) of precipitation is accumulated.Snowfall
In Emerald, snow does not fall in April through November.Daylight
In September, the average length of the day is 12h and 20min.On the first day of the month, sunrise is at 6:38 am and sunset at 7:24 pm. On the last day of September, in Emerald, sunrise is at 6:54 am and sunset at 6:47 pm CDT.
Sunshine
In Emerald, the average sunshine in September is 9.1h.UV index
The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high threat to health from exposure to the Sun's UV rays for average individuals.Note: The average daily UV index of 6 in September transforms into the following instructions:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. 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. Experience reduced UV exposure by about half when donning a wide-brim hat.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How hot is September in Emerald?
What is the average humidity in September?
How many days does it rain in September?
When it does not snow?
What is the average length of the day in September?
When are sunrise and sunset in September?
How many hours of sunshine does Emerald have in September?
How high is the UV index in September?
Average temperature in September
Emerald, MS
- Average high temperature in September: 86.9°F
The warmest month (with the highest average high temperature) is July (91°F).
The month with the lowest average high temperature is January (56.7°F).
- Average low temperature in September: 68°F
The month with the highest average low temperature is July (72.3°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in September
Emerald, MS
- Average pressure in September: 29.98"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in September
Emerald, MS
- Average wind speed in September: 4.8mph
The windiest month (with the highest average wind speed) is April (6.9mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in September
Emerald, MS
- Average humidity in September: 78%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in September
Emerald, MS
- Average rainfall in September: 1.73"
The wettest month (with the highest rainfall) is August (3.39").
The driest month (with the least rainfall) is November (1.1").
Average rainfall days in September
Emerald, MS
- Average rainfall days in September: 16.3 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (7.5 days).
Average snowfall in September
Emerald, MS
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.2").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Emerald, MS
- Average snowfall days in September: 0 days
The months with the highest number of snowfall days are January and December (0.3 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
Emerald, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Emerald, MS
- Average sunshine days in September: 11.5 days
The month with the most sunshine days is November (20.8 days).
The month with the least sunshine days is July (8 days).
Average UV index in September
Emerald, MS
- Average UV index in September: 6
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in September
Emerald, MS
- Average cloud cover in September: 34
The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Emerald, MS
- Average visibility in September: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
Emerald, Mississippi, USA
Weather forecast for your location
2. Allow the app to use your location