September weather forecast
Holmesville, MS

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Weather in September

September, the first month of the autumn in Holmesville, is still a tropical month, with an average temperature ranging between max 86.9°F (30.5°C) and min 68°F (20°C).

Temperature

In September, Holmesville experiences a barely noticeable shift in meteorological conditions, with average high-temperatures moving from 90.3°F (32.4°C) in August to a still hot 86.9°F (30.5°C). Holmesville, during the nights of September, experiences an average temperature drop to a pleasant 68°F (20°C).

Heat index

For most parts of September, the heat index is evaluated at a fiery hot 102.2°F (39°C). Implement more safety precautions, heat cramps and heat exhaustion may happen. Persistent activity could induce heatstroke.
Metrics for the heat index primarily focus on shaded spots and light wind conditions. The heat index might be elevated by 15 Fahrenheit (8 Celsius) degrees due to direct sun exposure.
Note: The heat index, also known as 'felt air temperature' or 'feels like', is found by incorporating humidity levels into the air temperature measurement. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. Recognize that direct exposure to the sun can escalate the heat effect, potentially adding 15 Fahrenheit (8 Celsius) degrees to the heat index. Heat index values are essentially critical for children. Kids frequently ignore the importance of taking a break and rehydrating. Thirst is a late symptom of dehydration - thus, it is crucial to stay hydrated, especially during long-lasting physical activities.
Perspiration and the resultant sweat evaporation are the body's natural thermostat, helping regulate temperature. When relative humidity is on the rise, it curtails evaporation, thereby reducing the heat elimination from the body and causing the feeling of being excessively hot. If heat absorption isn't effectively countered by the body's cooling methods, body temperature surges, hinting at potential problems.

Humidity

In September, the average relative humidity is 78%.

Rainfall

In Holmesville, in September, it is raining for 16.3 days, with typically 1.73" (44mm) of accumulated precipitation. In Holmesville, during the entire year, the rain falls for 159.9 days and collects up to 22.83" (580mm) of precipitation.

Snowfall

In Holmesville, snow does not fall in April through November.

Daylight

The average length of the day in September is 12h and 20min.
On the first day of September, sunrise is at 6:37 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:47 pm CDT.

Sunshine

In Holmesville, the average sunshine in September is 9.1h.

UV index

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high health risk from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In September, the maximum UV index of 6 translates into these guidelines:
Avoid overexposure. Fair-skinned individuals can burn in under 20 minutes. Stay in the shade and avoid direct Sun exposure from 10 a.m. to 4 p.m., a period when UV radiation is particularly strong, noting that parasols or canopies may not offer total sun protection. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How hot is September?

The high-temperature, in September, in Holmesville, records 86.9°F (30.5°C), while the low-temperature is 68°F (20°C). In September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 102.2°F (39°C).

What is the average humidity in September?

In Holmesville, the average relative humidity in September is 78%.

How much does it rain in Holmesville in September?

In Holmesville, in September, during 16.3 rainfall days, 1.73" (44mm) of precipitation is typically accumulated.

When it does not snow?

April through November are months without snowfall.

What is the average length of the day in September?

In September, the average day length is 12h and 20min.

What time are sunrise and sunset in September in Holmesville?

In September, on the first day of the month, sunrise is at 6:37 am and sunset at 7:24 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:47 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.1h.

How high is the UV index in September?

In September, the average daily maximum UV index is 6. A UV Index estimate of 6 to 7 represents a high hazard to health from exposure to Sun's UV rays.
Average max. wind speed
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Holmesville, MS

Average temperature in September - Holmesville, 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
Holmesville, MS

Average pressure in September - Holmesville, 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
Holmesville, MS

Average wind speed in September - Holmesville, 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
Holmesville, MS

Average humidity in September - Holmesville, 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
Holmesville, MS

Average rainfall in September - Holmesville, 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
Holmesville, MS

Average rainfall days in September - Holmesville, 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
Holmesville, MS

Average snowfall in September - Holmesville, 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
Holmesville, MS

Average snowfall days in September - Holmesville, 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
Holmesville, MS

Average daylight in September / Average sunshine in September - Holmesville, 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
Holmesville, MS

Average sunshine days in September - Holmesville, 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
Holmesville, MS

Average UV index in September - Holmesville, 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
Holmesville, MS

Average cloud cover in September - Holmesville, 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
Holmesville, MS

Average visibility in September - Holmesville, 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).

Holmesville, Mississippi, USA

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