August weather forecast
Cairo, IL

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Weather in August

August weather in Cairo upholds the summer spell, comparable to July in terms of temperature and daylight duration. As summer's influence begins to wear off, there is a slight dip in daylight hours, hinting at an approaching change of season. Cloud coverage and humidity persist, keeping the atmosphere slightly muggy. Nonetheless, days are still predominantly warm and sunny, favoring leisure activities.

Temperature

In August, Cairo notes an average high-temperature of a still tropical 86.4°F (30.2°C), hardly different from the preceding month. In Cairo, an average nighttime temperature of 67.5°F (19.7°C) is expected during August.

Heat index

For August, the heat index is appraised at a torrid 98.6°F (37°C). Take extra precautions, as heat cramps and heat exhaustion are possible. Sustained activity may result in heatstroke.
Be aware that heat index ratings are designed for shaded locations and minor breezes. Direct sunlight might cause an increase of up to 15 Fahrenheit (8 Celsius) degrees in the heat index.
Note: The heat index, also known as 'feels like' or 'felt air temperature', shows a temperature sensation when both heat and moisture conditions are combined. Physical activity, clothing, and metabolic variations are additional factors that impact an individual's perception of temperature. It is noteworthy that being in direct sunlight can enhance the weather's impact, raising the heat index by as much as 15 Fahrenheit (8 Celsius) degrees. Heat index values are primarily vital for children. Young ones generally face higher dangers than adults since they sweat less. Along with their large skin surface area compared totheir small bodies and increased heat production from their activities, the risks are heightened.
The body's inherent cooling system operates through perspiration, wherein evaporating sweat offsets excessive heat. Elevated relative humidity disrupts typical body cooling by reducing the evaporation rate, consequently decreasing the body's cooling rate and enhancing the feeling of heat. Increasing body temperatures can be a precursor to dehydration if the body can't shed the extra heat.

Humidity

In August, the average relative humidity is 76%.

Rainfall

In August, the rain falls for 13.6 days. Throughout August, 2.72" (69mm) of precipitation is accumulated. In Cairo, during the entire year, the rain falls for 156.3 days and collects up to 36.65" (931mm) of precipitation.

Snowfall

May through September are months without snowfall.

Daylight

In Cairo, the average length of the day in August is 13h and 32min.
On the first day of the month, sunrise is at 6:02 am and sunset at 8:03 pm. On the last day of August, sunrise is at 6:27 am and sunset at 7:26 pm CDT.

Sunshine

In August, the average sunshine is 10.4h.

UV index

The months with the highest UV index in Cairo are May through August, with an average maximum UV index of 6. A UV Index of 6 to 7 symbolizes a high health vulnerability from unsafe exposure to UV radiation for ordinary individuals.
Note: A daily high UV index of 6 in August leads to these guidelines:
Take precautions against overexposure. Fair-skinned people may get burned in less than 20 minutes. From 10 a.m. to 4 p.m., when UV radiation is at its strongest, limit direct exposure to the Sun and note that shade structures may not provide full sun protection. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is it hot in Cairo during August?

In Cairo, in August, the average high-temperature is 86.4°F (30.2°C), and the average low-temperature is 67.5°F (19.7°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, in August is appraised at 98.6°F (37°C).

What is the average humidity in August in Cairo?

In Cairo, the average relative humidity in August is 76%.

How much does it rain in Cairo in August?

In August, in Cairo, the rain falls for 13.6 days. Throughout August, 2.72" (69mm) of precipitation is accumulated.

When it does not snow in Cairo?

In Cairo, Illinois, snow does not fall in May through September.

What is the average length of the day in August in Cairo?

In August, the average day length in Cairo, Illinois, is 13h and 32min.

When are sunrise and sunset in August in Cairo?

In August, on the first day of the month, sunrise is at 6:02 am and sunset at 8:03 pm. On the last day of the month, sunrise is at 6:27 am and sunset at 7:26 pm CDT.

How long on average sun shines in August in Cairo?

The average sunshine duration in August in Cairo is 10.4h.

When is the highest UV index in Cairo?

May through August, with an average maximum UV index of 6, are months with the highest UV index.

How high is the UV index in August in Cairo?

In August, 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 the Sun's UV radiation.
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 August
Cairo, IL

Average temperature in August - Cairo, IL
  • Average high temperature in August: 86.4°F

The warmest month (with the highest average high temperature) is July (88.2°F).
The month with the lowest average high temperature is January (41.2°F).

  • Average low temperature in August: 67.5°F

The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.4°F).

Average pressure in August
Cairo, IL

Average pressure in August - Cairo, IL
  • Average pressure in August: 29.98"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in August
Cairo, IL

Average wind speed in August - Cairo, IL
  • Average wind speed in August: 5.7mph

The windiest months (with the highest average wind speed) are January, February and March (9.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in August
Cairo, IL

Average humidity in August - Cairo, IL
  • Average humidity in August: 76%

The months with the highest relative humidity are February, March, May and December (78%).
The month with the lowest relative humidity is October (69%).

Average rainfall in August
Cairo, IL

Average rainfall in August - Cairo, IL
  • Average rainfall in August: 2.72"

The wettest month (with the highest rainfall) is April (4.21").
The driest month (with the least rainfall) is September (1.42").

Average rainfall days in August
Cairo, IL

Average rainfall days in August - Cairo, IL
  • Average rainfall days in August: 13.6 days

The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (9.8 days).

Average snowfall in August
Cairo, IL

Average snowfall in August - Cairo, IL
  • Average snowfall in August: 0"

The month with the highest snowfall is February (1.5").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in August
Cairo, IL

Average snowfall days in August - Cairo, IL
  • Average snowfall days in August: 0 days

The month with the highest number of snowfall days is February (3.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in August /
Average sunshine in August
Cairo, IL

Average daylight in August / Average sunshine in August - Cairo, IL
  • Average daylight in August: 13h and 3min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in August: 10h and 2min

The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

Average sunshine days in August
Cairo, IL

Average sunshine days in August - Cairo, IL
  • Average sunshine days in August: 15.1 days

The month with the most sunshine days is October (18.5 days).
The month with the least sunshine days is May (12.3 days).

Average UV index in August
Cairo, IL

Average UV index in August - Cairo, IL
  • Average UV index in August: 6

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in August
Cairo, IL

Average cloud cover in August - Cairo, IL
  • Average cloud cover in August: 27

The month with the most cloud cover is February (Cloud cover 49).
The month with the least cloud cover is June (Cloud cover 26).

Average visibility in August
Cairo, IL

Average visibility in August - Cairo, IL
  • Average visibility in August: 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).

Cairo, Illinois, USA

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