August Weather in Cincinnati, United States

Last updated: February 24, 2025

In Cincinnati during August, the climate tends to be warm and humid, with maximum temperatures reaching a peak of 34°C (93°F) and an average of 24°C (75°F). As the month unfolds, temperatures can dip to a refreshing 13°C (56°F) at night. This summer month experiences an average precipitation of 89 mm (3.5 inches), spread over 12 rainy days, contributing to a humidity level of 73% that enhances the sultry feel of the season. Residents and visitors alike can expect a mix of sunshine and occasional showers, making August a quintessential representation of Cincinnati's summer charm.

August Temperature in Cincinnati

In August, Cincinnati experiences a delightful warm-up as summer approaches its end, with temperatures showing a noticeable rise. The average temperature hovers around a comfortable 24°C (75°F), while the maximum often reaches a sweltering 34°C (93°F), perfect for outdoor activities. Evenings begin to cool down slightly, with a minimum of 13°C (56°F), making for pleasant nights. This month’s temperatures reflect a transition from the hotter July to the milder conditions of September, creating a vibrant atmosphere filled with summer events, outdoor festivals, and the perfect backdrop for scenic views. As daylight begins to recede, the warmth of August continues to linger, inviting both residents and visitors to savor the last days of summer.

August Weather in Cincinnati: Daily Temperature Highs, Lows, and Averages

The chart illustrates August temperature patterns in Cincinnati, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec333745546674787571594439
Data source: Temperature data for Cincinnati generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

August Precipitation in Cincinnati

In August, Cincinnati experiences a moderate precipitation level, with 89 mm (3.5 in) of rain over approximately 12 days. This month marks a slight dip from the summer peak seen in June and July, indicating a gradual transition toward drier fall conditions. Despite the decrease, August still maintains a significant volume of rain, reflecting a rich blend of lingering summer storms and the early whispers of autumn. Interestingly, this month precedes a trend where precipitation levels begin to decline, setting the stage for the drier September ahead, which typically sees only 81 mm (3.2 in) over just 8 days. Overall, August's weather acts as a bridge, connecting the lush, rain-soaked days of summer with the crisp, cooler patterns that autumn brings.

August Precipitation Trends in Cincinnati

The chart displays monthly precipitation patterns in Cincinnati, with values for each month alongside August's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how August's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec8010713711912713111089819699110
Data source: Precipitation data for August generated using information from the Copernicus Climate Change Service.
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August Humidity in Cincinnati

In Cincinnati, the humidity tends to show a clear trend throughout the year, with August marking a noticeable drop to 73%. This reduction is part of a gradual decline from the winter months, where humidity hovers around 88%. Following the spring's more humid conditions, which remain in the low to mid-80s, the summer months of June and July maintain a steady humidity level around 81%. However, as August rolls in, residents can finally breathe a little easier with the lower humidity, a welcome change that leads into the equally low September levels. This cyclical pattern emphasizes how Cincinnati’s summer transitions into a drier climate as the crispness of autumn approaches, creating a refreshing shift for both residents and visitors alike.

August Average Humidity in Cincinnati

This chart illustrates the average monthly humidity levels in Cincinnati, with August's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how August's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec88%88%87%85%81%82%81%73%73%78%89%87%
Data source: Humidity data for August generated using information from the Copernicus Climate Change Service.

August UV Index in Cincinnati

In August, Cincinnati experiences a UV Index of 9, placing it firmly within the very high exposure category. This indicates a slight dip from the peak levels seen in the summer months of June and July, which maintained an index of 10. Nevertheless, residents and visitors alike should remain vigilant, as the potential for sunburn is considerable, with a burn time of just 15 minutes on unprotected skin. The trend throughout the summer showcases a gradual escalation of UV intensity, underscoring the importance of sun safety measures. As the month progresses, a shift toward moderate levels begins, leading into September's UV Index of 8. For a detailed understanding and daily updates, visit Cincinnati UV Index.

Maximum UV Index Levels in Cincinnati for August

The chart shows the monthly maximum UV Index (UVI) for Cincinnati in August, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec356910101098643
Data source: Cincinnati August UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

August Sunshine in Cincinnati

In Cincinnati, August shines brightly, with 321 hours of sunshine illuminating the month. This vibrant summer peak follows the sun-soaked days of July, which boasts the highest total at 348 hours. Despite its slight dip, August's abundance of sunlight keeps the summer spirit alive, serving as a delightful transition into the more temperate autumn months. From the long, sun-kissed days of May (287 hours) to the lush greenery of June (320 hours), Cincinnati experiences a significant increase in sunshine as it moves into the heart of summer. With the days gradually shortening into September, which captures 282 hours of sunlight, it’s evident that Cincinnati revels in its sunny splendor during August, making it a perfect time for outdoor activities and enjoying the warmth before the cool of fall settles in.

Monthly Sunshine Duration in Cincinnati: August Highlighted

The August sunshine duration represents the total number of hours Cincinnati experiences direct sunlight during the month of August, excluding cloudy or obstructed periods. This chart compares the sunshine duration of August with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec122h151h224h237h287h320h348h321h282h244h196h160h
Data source: Cincinnati August Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cincinnati During August

August in Cincinnati enjoys a 41% chance of sunny weather, making it a relatively bright month as the summer nears its end. This percentage highlights a slight dip from the peak sunshine experienced in July, which boasts a 48% likelihood of sunshine. Despite this modest decline, August still offers a higher chance of sun compared to several other months, including January and February. As September approaches, the likelihood of sunny days increases significantly to 56%, suggesting that Cincinnatians can still relish those warm, sunlit days before the autumn chill sets in. Overall, while August may not be the sunniest month, it stands out as a pleasant time to enjoy outdoor activities in the Heart of Ohio.

Percentage of Sunny Days in August in Cincinnati

The chart illustrates the percentage of sunny days in Cincinnati throughout the year, with August highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Cincinnati experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec29%26%46%50%32%37%48%41%56%38%48%35%
Data source: Cincinnati August chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cincinnati in August

In Cincinnati, August brings a delightful embrace of daylight, with approximately 13 hours to enjoy the summer sun. This slight reduction from July's peak of 14 hours signals the gradual transition towards autumn. As the year progresses, daylight hours continue to wane, moving from 14 hours in June and July to 12 hours in September. This seasonal ebb and flow not only marks the changing landscape but also invites residents to savor the long summer days before the cooler months set in. With increasing daylight in the early months of the year, peaking around late spring and early summer, Cincinnatians can anticipate vibrant outdoor activities and social gatherings, making August a pivotal moment in the rhythm of the year.

Average Daylight Hours in Cincinnati for August

The chart illustrates the variation in daylight duration in Cincinnati throughout the year, with August highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 45m10h 44m11h 58m13h 15m14h 19m14h 51m14h 34m13h 36m12h 23m11h 7m10h9h 26m
Data source: Cincinnati daylight hours, calculated by summing the hours between sunrise and sunset for each day.

August Winds in Cincinnati

In Cincinnati, the wind currents of August exhibit a gentle whisper, with an average speed of 2.1 m/s (5 mph)—the lowest of the year. This seasonal lull follows a slight decline from the breezier days of spring, where average winds hovered around 3.3 m/s (7 mph) in April and May. As summer sets in, there's a noticeable drop, with July and August both experiencing lighter winds that evoke a tranquil summer atmosphere. Interestingly, as the calendar turns to September, winds begin to pick up again, indicating a subtle yet refreshing shift as the city transitions into fall. Overall, the pattern reflects a sweet cadence of breezes that ebbs and flows throughout the year, with August standing out for its serene stillness.

Average August Wind Speed in Cincinnati

The chart displays monthly wind speed patterns in Cincinnati, with values for each month shown alongside August's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how August's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec3.03.33.53.32.72.72.32.1 m/s2.92.93.13.3
Data source: Cincinnati August wind data, generated using information from the Copernicus Climate Change Service.

How August Weather in Cincinnati Compares to Other Months

The weather in Cincinnati changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of August's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Cincinnati and find detailed weather information for every month.

In August, temperatures in Cincinnati typically range from a minimum of 13°C (56°F) to a maximum of 34°C (93°F), with an average of 24°C (75°F). This warm month experiences around 89 mm (3.5 in) of precipitation over about 12 days and boasts a humidity level of 73%. Conversely, January brings much colder weather, with temperatures ranging from a frigid minimum of -24°C (-11°F) to a maximum of 21°C (69°F), averaging just 1°C (33°F). Precipitation is slightly less at 80 mm (3.2 in) over 10 days, but humidity levels rise to 88%, contributing to a brisk, chilly atmosphere. For more detailed insights, check out Cincinnati weather in January.

August and February present stark contrasts in weather conditions. In August, temperatures range from a minimum of 13°C (56°F) to a maximum of 34°C (93°F), with an average of 24°C (75°F). The month experiences about 89 mm (3.5 in) of precipitation over 12 days, along with a humidity level of 73%. In contrast, February is significantly colder, with temperatures ranging from a chilling minimum of -19°C (-3°F) to a maximum of 26°C (78°F), averaging only 3°C (37°F). This winter month sees slightly more precipitation at 107 mm (4.2 in) over 13 days and a higher humidity level of 88%. For more details, check out Cincinnati weather in February.

When comparing the weather in August and March, a striking contrast emerges. August showcases warmer temperatures, with averages around 24°C (75°F) and highs reaching up to 34°C (93°F), while March experiences a much cooler average of 7°C (45°F), with maximums peaking at 26°C (80°F) despite the potential for freezing conditions. Precipitation is more prevalent in March, totaling 137 mm (5.4 in) over 13 days compared to August's 89 mm (3.5 in) across 12 days, and humidity levels are higher in March at 87% versus 73% in August. For more details on March weather, you can refer to Cincinnati weather in March.

In comparing the weather of August and April, we notice significant differences in temperature and humidity levels. August typically enjoys a warmer climate with average temperatures around 24°C (75°F), peaking at a high of 34°C (93°F), while April sees cooler conditions, with average temperatures at 12°C (55°F) and a maximum of 30°C (86°F). However, April experiences a slightly higher precipitation level at 119 mm (4.7 in), compared to August's 89 mm (3.5 in), along with increased humidity at 85% versus August's 73%. For a detailed look at April weather patterns, you can explore Cincinnati weather in April.

In terms of weather, August is generally warmer than May, with average temperatures ranging from 13°C (56°F) at night to a peak of 34°C (93°F) during the day. In contrast, May's temperatures start from a chilly 0°C (33°F) and reach a maximum of 33°C (92°F), making it a transitional month. Precipitation levels in May are slightly higher, averaging 127 mm (5.0 in) over 14 days compared to August's 89 mm (3.5 in) over 12 days. Additionally, humidity is notably higher in May at 81%, while August has a lower humidity level of 73%. For more detailed information, you can visit Cincinnati weather in May.

In June, the weather is typically cooler at night with a minimum temperature of 9°C (49°F) compared to August's minimum of 13°C (56°F). Both months experience similar high temperatures, with August reaching a maximum of 34°C (93°F) and June peaking at 34°C (94°F). However, June is wetter, averaging 131 mm (5.2 in) of precipitation over 13 days, while August receives less rain, at 89 mm (3.5 in) over 12 days. The humidity is also higher in June, averaging 82% compared to August's 73%. For more details, you can check Cincinnati weather in June.

In comparing the weather between July and August, we observe that both months experience warm temperatures, with July having a slightly higher average of 25°C (78°F) compared to August's 24°C (75°F). While July enjoys a maximum temperature of 35°C (95°F), August peaks at 34°C (93°F). Precipitation levels are also notable; July receives 110 mm (4.3 in) over 11 days, whereas August sees a decrease in precipitation to 89 mm (3.5 in) over 12 days. Additionally, humidity is higher in July at 81%, compared to August's 73%. For a more detailed look at July weather patterns, you can visit Cincinnati weather in July.

In August, the weather tends to be warmer with average temperatures reaching around 24°C (75°F) and maximum highs of 34°C (93°F). The month experiences about 89 mm (3.5 in) of precipitation over 12 days, contributing to a humid atmosphere with a consistent humidity level of 73%. In contrast, September brings cooler temperatures, with a minimum of 7°C (44°F) and an average of 21°C (71°F), while still reaching a peak of 35°C (95°F). The precipitation decreases slightly to 81 mm (3.2 in) over just 8 days, maintaining the same humidity level. For more detailed insights on September weather, you can visit Cincinnati weather in September.

August and October present contrasting weather conditions, highlighting the transition from summer to autumn. In August, temperatures are warmer, with a minimum of 13°C (56°F) and an average of 24°C (75°F), peaking at 34°C (93°F). The humidity is relatively high at 73%, and precipitation is frequent, occurring over 12 days with a total of 89 mm (3.5 in). In contrast, October exhibits cooler temperatures, with a minimum of 1°C (34°F) and an average of 15°C (59°F), while the maximum reaches a similar high of 34°C (94°F). Though October experiences slightly more precipitation at 96 mm (3.8 in) over the same number of days, the humidity also increases to 78%, adding to the chilly atmosphere. For more details on October weather, check out Cincinnati weather in October.

August and November showcase a stark contrast in weather patterns. In August, the temperatures range from a mild 13°C (56°F) at night to a scorching high of 34°C (93°F) during the day, with an average of 24°C (75°F). The month typically sees around 89 mm (3.5 in) of rainfall over 12 days, accompanied by moderate humidity levels at 73%. In contrast, November brings a drastic shift, with temperatures dipping as low as -13°C (9°F) and averaging just 7°C (44°F). Although the maximum temperature can reach 26°C (80°F), the overall conditions are much cooler, with slightly increased precipitation of 99 mm (3.9 in) spread across only 8 days and higher humidity at 89%. For a more detailed look at November conditions, visit Cincinnati weather in November.

August and December present a striking contrast in weather conditions. In August, temperatures range from a mild 13°C (56°F) at night to a hot 34°C (93°F) during the day, with an average of 24°C (75°F). The humidity is relatively high at 73%, and the month experiences about 89 mm (3.5 in) of precipitation over 12 days. In sharp contrast, December sees a significant drop in temperatures, with a chilling minimum of -16°C (4°F) and a maximum of 19°C (67°F), leading to an average of only 4°C (39°F). While December has slightly more precipitation at 110 mm (4.3 in), it falls over fewer days (10 days) and boasts even higher humidity at 87%. For a more detailed look at December weather patterns, you can check out this Cincinnati weather in December.

Compare Cincinnati's Climate with Cities Worldwide

Conclusion: What to Expect From August Weather in Cincinnati

As August unfolds in Cincinnati, the weather showcases its unique charm, distinct from other months. With warm temperatures peaking around 34°C (93°F), it offers a taste of summer’s peak heat, contrasted by cooler evenings dipping to a refreshing 13°C (56°F). The average warmth of 24°C (75°F) provides a comfortable backdrop for outdoor activities. However, this month also brings its share of humidity at 73% and 89 mm (3.5 in) of rainfall over 12 days, adding a touch of unpredictability to daily plans. Whether you’re enjoying the bustling outdoor events or seeking refuge from the occasional afternoon shower, August in Cincinnati presents a vibrant interplay of heat and refreshing summer storms. For a deeper understanding of weather patterns throughout the year, explore Cincinnati Climate.