August weather forecast
Cincinnati, OH

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A beautiful park in spring next to the John A Roebling suspension bridge in Cincinnati, Ohio
A beautiful park in spring next to the John A Roebling suspension bridge in Cincinnati, Ohio

Weather in August

As the final component of the summer triplet, August continues to bathe Cincinnati in sunlight with highs similar to July, affirming its place in the trio of the warmest months. This summer peak progressively shifts into milder conditions as the month matures, hinting at the upcoming autumn season. As the days become progressively shorter, there's a subtle but definite shift in the city's weather atmosphere. This is the first whisper of change, signaling that fall is waiting patiently around the corner.

Temperature

With the onset of August in Cincinnati, a modest change to a still warm 83.8°F (28.8°C) from July's 84.7°F (29.3°C) is noted in high-temperature. During the month of August, the temperature in Cincinnati, Ohio, falls to an average of 64.2°F (17.9°C).

Heat index

August's average heat index is estimated at a hot 91.4°F (33°C). Implement additional preventive actions, heat cramps and heat exhaustion are potential hazards. Heatstroke could follow prolonged activity.
When considering the heat index, it's pivotal to note it is for shade and mild wind conditions. Direct sunshine exposure could raise heat index values by as much as 15 Fahrenheit (8 Celsius) degrees.
Note: The heat index, also known as 'felt air temperature' or 'apparent temperature', is a measure of how hot it feels when the actual air humidity is factored in. Factors encompassing physical activity, clothing, and metabolic differences have a role in shaping the individual's impression of temperature. By being directly under the sun, it's possible for the felt temperature to increase by 15 Fahrenheit (8 Celsius) degrees. Heat index values are extremely vital to babies and toddlers. Younglings frequently fail to recognize the requirement to rest and rehydrate. Thirst emerges late in dehydration - it is imperative to keep hydration levels high, particularly during extended physical exertions.

Humidity

August through October, with an average relative humidity of 74%, are the least humid months in Cincinnati, Ohio.

Rainfall

In August, in Cincinnati, the rain falls for 13.6 days. Throughout August, 1.97" (50mm) of precipitation is accumulated. In Cincinnati, during the entire year, the rain falls for 150.9 days and collects up to 27.64" (702mm) of precipitation.

Snowfall

May through October are months without snowfall in Cincinnati.

Daylight

In August, the average length of the day is 13h and 39min.
On the first day of the month, sunrise is at 6:39 am and sunset at 8:49 pm. On the last day of August, sunrise is at 7:06 am and sunset at 8:09 pm EDT.

Sunshine

The average sunshine in August is 10.2h.

UV index

May through August, with an average maximum UV index of 6, are months with the highest UV index. A UV Index estimate of 6 to 7 represents a high health vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index of 6 in August interprets into the following recommendations:
Take precautions and utilize sun safety practices. Protection against skin and eye damage is required. Stay in the shade and limit direct Sun exposure from 10 a.m. to 4 p.m., a time when UV radiation is particularly strong. Remember, however, that shade structures may not provide complete protection. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration.
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Frequently asked questions

How hot is August in Cincinnati?

In Cincinnati, in August, the average high-temperature is 83.8°F (28.8°C), and the average low-temperature is 64.2°F (17.9°C). The average heat index (a.k.a. 'feels like', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is estimated at 91.4°F (33°C).

What is the least humid month in Cincinnati?

August through October, with an average relative humidity of 74%, are the least humid months in Cincinnati, Ohio.

What is the average humidity in August in Cincinnati?

In August, the average relative humidity is 74%.

How many days does it rain in August in Cincinnati?

In Cincinnati, in August, during 13.6 rainfall days, 1.97" (50mm) of precipitation is typically accumulated.

When it does not snow in Cincinnati?

In Cincinnati, snow does not fall in May through October.

How many hours of daylight does Cincinnati have in August?

In August, the average day length is 13h and 39min.

What time are sunrise and sunset in August in Cincinnati?

On the first day of August, sunrise is at 6:39 am and sunset at 8:49 pm. On the last day of the month, sunrise is at 7:06 am and sunset at 8:09 pm EDT.

How long on average sun shines in August in Cincinnati?

In Cincinnati, the average sunshine duration in August is 10.2h.

What are the months with the highest UV index in Cincinnati?

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

What is the UV index intensity in August in Cincinnati?

In Cincinnati, the average daily maximum UV index in August is 6. A UV Index estimate of 6 to 7 represents a high health threat from unprotected exposure to 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
Cincinnati, OH

Average temperature in August - Cincinnati, OH
  • Average high temperature in August: 83.8°F

The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (36.1°F).

  • Average low temperature in August: 64.2°F

The month with the highest average low temperature is July (66°F).
The coldest month (with the lowest average low temperature) is January (23.7°F).

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Average pressure in August
Cincinnati, OH

Average pressure in August - Cincinnati, OH
  • Average pressure in August: 29.99"Hg

The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

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Average wind speed in August
Cincinnati, OH

Average wind speed in August - Cincinnati, OH
  • Average wind speed in August: 5mph

The windiest month (with the highest average wind speed) is January (8.7mph).
The calmest month (with the lowest average wind speed) is August (5mph).

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Average humidity in August
Cincinnati, OH

Average humidity in August - Cincinnati, OH
  • Average humidity in August: 74%

The months with the highest relative humidity are February and December (81%).
The months with the lowest relative humidity are August, September and October (74%).

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Average rainfall in August
Cincinnati, OH

Average rainfall in August - Cincinnati, OH
  • Average rainfall in August: 1.97"

The wettest month (with the highest rainfall) is May (3.27").
The driest month (with the least rainfall) is September (1.54").

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Average rainfall days in August
Cincinnati, OH

Average rainfall days in August - Cincinnati, OH
  • Average rainfall days in August: 13.6 days

The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is February (8.2 days).

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Average snowfall in August
Cincinnati, OH

Average snowfall in August - Cincinnati, OH
  • Average snowfall in August: 0"

The month with the highest snowfall is February (2.01").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in August
Cincinnati, OH

Average snowfall days in August - Cincinnati, OH
  • Average snowfall days in August: 0 days

The months with the highest number of snowfall days are January and February (5.5 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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Average daylight in August /
Average sunshine in August
Cincinnati, OH

Average daylight in August / Average sunshine in August - Cincinnati, OH
  • Average daylight in August: 13h and 4min

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).

  • Average sunshine in August: 10h and 1min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).

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Average sunshine days in August
Cincinnati, OH

Average sunshine days in August - Cincinnati, OH
  • Average sunshine days in August: 15 days

The months with the most sunshine days are October and November (19.2 days).
The month with the least sunshine days is May (10.9 days).

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Average UV index in August
Cincinnati, OH

Average UV index in August - Cincinnati, OH
  • 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, November and December (UV index 2).

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Average cloud cover in August
Cincinnati, OH

Average cloud cover in August - Cincinnati, OH
  • Average cloud cover in August: 27

The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).

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Average visibility in August
Cincinnati, OH

Average visibility in August - Cincinnati, OH
  • 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).

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Cincinnati, Ohio, USA

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