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 arrival of September brings an average high-temperature of a still tropical 87.3°F (30.7°C), subtly diverging from August's 91.4°F (33°C). Throughout the month of September, Sylvarena witnesses an average low-temperature of 67.1°F (19.5°C).Heat index
The heat index value during September is estimated at a fiery hot 100.4°F (38°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight exposure may result in a rise of the heat index by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', joins air temperature with relative humidity to produce a temperature perception for humans. A person's impression of weather can be shaped by several aspects, among them metabolic variations, pregnancy, and levels of physical activity. With direct sunlight, be aware that it might enhance the heat sensation, raising the heat index by up to 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely significant for babies and toddlers. Children frequently do not comprehend the need for rest and hydration. Thirst is an advanced stage of dehydration - staying hydrated, especially during extended physical exercises, is essential.
Evaporating sweat, an outcome of perspiration, is key in assisting the human body to moderate its temperature. When air moisture content is high, the cooling process through evaporation is not as efficient, leading to an ineffective body cooling process and a feeling of overheating. Excessive heat gain, when not shed effectively by the body, can result in increasing body temperatures and related hazards.
Humidity
The average relative humidity in September in Sylvarena is 74%.Rainfall
In September, the rain falls for 15 days. Throughout September, 3.11" (79mm) of precipitation is accumulated. In Sylvarena, during the entire year, the rain falls for 170.6 days and collects up to 38.19" (970mm) of precipitation.Snowfall
April through November are months without snowfall.Daylight
In September, the average length of the day is 12h and 21min.On the first day of the month, sunrise is at 6:33 am and sunset at 7:21 pm. On the last day of September, sunrise is at 6:51 am and sunset at 6:43 pm CDT.
Sunshine
In Sylvarena, the average sunshine in September is 9.1h.UV index
In Sylvarena, 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: In September, a daily UV index of 6 turns into the following recommendations:
Steer clear of overexposure. Fair-skinned individuals can be scorched in less than 20 minutes. Avoid direct exposure to the Sun between 10 a.m. and 4 p.m., the peak period for UV radiation, noting that objects like parasols or canopies might not offer complete sun protection. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it hot in Sylvarena during September?
What is the average humidity in September in Sylvarena?
How many days does it rain in September in Sylvarena?
When it does not snow in Sylvarena?
How many hours of daylight does Sylvarena have in September?
When are sunrise and sunset in September in Sylvarena?
How long on average sun shines in September in Sylvarena?
What is the UV index reading in September in Sylvarena?
Average temperature in September
Sylvarena, MS
- Average high temperature in September: 87.3°F
The warmest months (with the highest average high temperature) are July and August (91.4°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in September: 67.1°F
The month with the highest average low temperature is August (71.8°F).
The coldest month (with the lowest average low temperature) is January (38.7°F).
Average pressure in September
Sylvarena, MS
- Average pressure in September: 29.99"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in September
Sylvarena, MS
- Average wind speed in September: 5.2mph
The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in September
Sylvarena, MS
- Average humidity in September: 74%
The month with the highest relative humidity is December (81%).
The month with the lowest relative humidity is October (70%).
Average rainfall in September
Sylvarena, MS
- Average rainfall in September: 3.11"
The wettest month (with the highest rainfall) is December (4.02").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in September
Sylvarena, MS
- Average rainfall days in September: 15 days
The month with the highest number of rainy days is July (20.8 days).
The month with the least rainy days is November (8.9 days).
Average snowfall in September
Sylvarena, MS
- Average snowfall in September: 0"
The months with the highest snowfall are January and December (0.39").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in September
Sylvarena, MS
- Average snowfall days in September: 0 days
The month with the highest number of snowfall days is January (0.7 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
Sylvarena, MS
- Average daylight in September: 12h and 2min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in September: 9h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in September
Sylvarena, MS
- Average sunshine days in September: 13.1 days
The month with the most sunshine days is October (20 days).
The month with the least sunshine days is July (8.8 days).
Average UV index in September
Sylvarena, MS
- 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 and December (UV index 3).
Average cloud cover in September
Sylvarena, MS
- Average cloud cover in September: 32
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in September
Sylvarena, MS
- Average visibility in September: 5mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
Sylvarena, Mississippi, USA
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