September weather forecastBay, AR

September

Weather in September

The first month of the autumn, September, is also a moderately hot month in Bay, Arkansas, with an average temperature ranging between min 64°F (17.8°C) and max 82.2°F (27.9°C).

Temperature

During September, Bay observes a subtle ascent to a moderately hot 82.2°F (27.9°C) from August's 87.1°F (30.6°C) in the average high-temperature. In September, the recorded average low-temperature in Bay, Arkansas, is a comfortable 64°F (17.8°C).

Heat index

In September, the heat index is computed to be a tropical 87.8°F (31°C). Uninterrupted activity during exposure could lead to a sense of exhaustion, possibly causing heat cramps.
Heat index data is primarily for areas with shade and subjected to light winds. Heat index values might soar by up to 15 Fahrenheit (8 Celsius) degrees with exposure to direct sunshine.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a fusion of air temperature and moisture levels to demonstrate the sensation of heat. This effect is personal, shaped by the individual's physical activity and heat sensitivity, influenced by factors including wind, clothing, and metabolic variances. You should know that direct sun exposure can heighten weather effects, potentially elevating the heat index by 15 Fahrenheit (8 Celsius) degrees. Heat index values are quite important for babies and toddlers. 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.

Humidity

In Bay, the average relative humidity in September is 74%.

Rainfall

The month with the least rainfall is September, when the rain falls for 13 days and typically collects 2.56" (65mm) of precipitation.

Snowfall

April through October are months without snowfall.

Daylight

In September, the average length of the day is 12h and 23min.
On the first day of the month, sunrise is at 6:34 am and sunset at 7:29 pm. On the last day of September, in Bay, sunrise is at 6:57 am and sunset at 6:46 pm CDT.

Sunshine

In Bay, the average sunshine in September is 9.6h.

UV index

The average daily maximum UV index in September is 5. A UV Index of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV rays for the ordinary person.
Note: The UV index of 5 during September translates into the following guidance:
Be vigilant - Preventing sunburn is recommended. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear.

Frequently asked questions

In September, the average high-temperature and low-temperature are 82.2°F (27.9°C) and 64°F (17.8°C) respectively. The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is computed to be 87.8°F (31°C).

In September, the average relative humidity is 74%.

The month with the least rainfall is September, when the rain falls for 13 days and typically collects 2.56" (65mm) of precipitation.

In Bay, during September, the rain falls for 13 days and regularly aggregates up to 2.56" (65mm) of precipitation.

In Bay, Arkansas, snow does not fall in April through October.

The average day length in September is 12h and 23min.

In September, on the first day of the month, sunrise is at 6:34 am and sunset at 7:29 pm. On the last day of the month, in Bay, sunrise is at 6:57 am and sunset at 6:46 pm CDT.

The average sunshine duration in September is 9.6h.

The average daily maximum UV index in September in Bay is 5. A UV Index value of 3 to 5 symbolizes a moderate health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in September
Bay, AR

  • Average high temperature in September: 82.2°F

The warmest month (with the highest average high temperature) is July (88.9°F).
The month with the lowest average high temperature is January (45.1°F).

  • Average low temperature in September: 64°F

The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (32.7°F).

Average pressure in September
Bay, AR

  • Average pressure in September: 30.01"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in September
Bay, AR

  • Average wind speed in September: 6.2mph

The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).

Average humidity in September
Bay, AR

  • Average humidity in September: 74%

The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).

Average rainfall in September
Bay, AR

  • Average rainfall in September: 2.56"

The wettest month (with the highest rainfall) is May (4.72").
The driest month (with the least rainfall) is September (2.56").

Average rainfall days in September
Bay, AR

  • Average rainfall days in September: 13 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is November (10.1 days).

Average snowfall in September
Bay, AR

  • Average snowfall in September: 0"

The month with the highest snowfall is February (1.61").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in September
Bay, AR

  • Average snowfall days in September: 0 days

The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

Average daylight in September /
Average sunshine in September
Bay, AR

  • Average daylight in September: 12h and 24min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in September: 9h and 36min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

Average sunshine days in September
Bay, AR

  • Average sunshine days in September: 14.8 days

The month with the most sunshine days is October (18.8 days).
The month with the least sunshine days is July (10.3 days).

Average UV index in September
Bay, AR

  • Average UV index in September: 5

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 2).

Average cloud cover in September
Bay, AR

  • Average cloud cover in September: 28

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 24).

Average visibility in September
Bay, AR

  • 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).