September weather forecast
Topeka, MS

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Weather in September

The first month of the autumn, September, is still a hot month in Topeka, Mississippi, with temperature in the range of an average low of 68°F (20°C) and an average high of 86.7°F (30.4°C).

Temperature

Welcoming September, Topeka notes an average high-temperature of a still hot 86.7°F (30.4°C), nearly consistent with August's 90.3°F (32.4°C). The low-temperature averages to an agreeable 68°F (20°C) during the nights of September.

Heat index

In September, the average heat index is calculated to be a fiery hot 100.4°F (38°C). Special measures are necessary to avoid heat cramps and heat exhaustion. Persistent activity could result in heatstroke.
Heat index guidelines indicate values are for light wind scenarios and shaded regions. Direct sunlight has the potential to heighten heat index values by 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'feels like' or 'apparent temperature', is a calculation that merges air temperature and relative humidity to depict the sensation of warmth. The influence of weather is personal, differing among a variety of individuals based on differences in body mass, stature, and the level of physical activity. When you're directly under the sun's rays, remember that the heat index may surge by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. Young ones often disregard the necessity to rest and hydrate. Thirst usually indicates advanced dehydration - hence, it is key to stay hydrated, particularly during ongoing physical activities.
In high temperatures, perspiration kicks in, allowing the human body to cool down through the evaporation of sweat. A surge in relative humidity can disrupt the body's normal cooling function by slowing evaporation, hence reducing the rate at which the body cools and intensifying the perception of heat. Heat disorders may be on the horizon when body temperatures rise from inadequate heat management.

Humidity

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

Rainfall

In Topeka, during September, the rain falls for 16 days and regularly aggregates up to 1.42" (36mm) of precipitation. In Topeka, during the entire year, the rain falls for 151.2 days and collects up to 17.8" (452mm) of precipitation.

Snowfall

In Topeka, snow does not fall in February, April through November.

Daylight

In September, the average length of the day is 12h and 21min.
On the first day of September, sunrise is at 6:37 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:46 pm CDT.

Sunshine

The average sunshine in September is 9.2h.

UV index

The average daily maximum UV index in September is 6. A UV Index value of 6 to 7 symbolizes a high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: The maximum UV index of 6 during September leads to these instructions:
Implement precautions and maintain sun safety methods. Avoidance of sunburn is demanded. To the best of your ability, limit your exposure to the sun between the hours of 10 a.m. and 4 p.m., when UV radiation is at its peak. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays.

Frequently asked questions

How hot is it in September?

In September, in Topeka, the average high-temperature is 86.7°F (30.4°C), and the average low-temperature is 68°F (20°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in September is calculated to be 100.4°F (38°C).

What is the average humidity in September?

The average relative humidity in September in Topeka is 78%.

How many days does it rain in September?

In Topeka, in September, during 16 rainfall days, 1.42" (36mm) of precipitation is typically accumulated.

When it does not snow?

February, April through November are months without snowfall.

How many hours of daylight does Topeka have in September?

The average day length in September is 12h and 21min.

What time are sunrise and sunset in September?

On the first day of September, sunrise is at 6:37 am and sunset at 7:23 pm. On the last day of the month, sunrise is at 6:54 am and sunset at 6:46 pm CDT.

How long on average sun shines in September?

In September, the average sunshine duration is 9.2h.

How high is the UV index in September?

The average daily maximum UV index in September is 6. A UV Index of 6 to 7 symbolizes a high health threat 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
Topeka, MS

Average temperature in September - Topeka, MS
  • Average high temperature in September: 86.7°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (56.7°F).

  • Average low temperature in September: 68°F

The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).

Average pressure in September
Topeka, MS

Average pressure in September - Topeka, 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
Topeka, MS

Average wind speed in September - Topeka, MS
  • Average wind speed in September: 4.8mph

The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).

Average humidity in September
Topeka, MS

Average humidity in September - Topeka, 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
Topeka, MS

Average rainfall in September - Topeka, MS
  • Average rainfall in September: 1.42"

The wettest month (with the highest rainfall) is August (2.6").
The driest month (with the least rainfall) is November (0.79").

Average rainfall days in September
Topeka, MS

Average rainfall days in September - Topeka, MS
  • Average rainfall days in September: 16 days

The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (6.9 days).

Average snowfall in September
Topeka, MS

Average snowfall in September - Topeka, MS
  • Average snowfall in September: 0"

The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are February, April, May, June, July, August, September, October and November (0").

Average snowfall days in September
Topeka, MS

Average snowfall days in September - Topeka, 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
Topeka, MS

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

Average sunshine days in September - Topeka, MS
  • Average sunshine days in September: 11.9 days

The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (8.9 days).

Average UV index in September
Topeka, MS

Average UV index in September - Topeka, 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
Topeka, MS

Average cloud cover in September - Topeka, MS
  • Average cloud cover in September: 35

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
Topeka, MS

Average visibility in September - Topeka, 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).

Topeka, Mississippi, USA

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