Last updated: February 24, 2025
Experience the summer heat in Chattanooga, United States, where August temperatures soar with a maximum of 35°C (96°F) and a comfortable average of 26°C (78°F). With a cooler minimum of 15°C (60°F) during the nights, it's a month that offers diverse weather experiences. However, be prepared for 121 mm (4.8 in) of precipitation spread over 14 days, adding a splash of humidity at 67% to the air. Whether you're exploring outdoor activities or seeking refuge in local attractions, August in Chattanooga promises a vibrant mix of warmth and occasional refreshment.
In Chattanooga, August brings the peak of summer, characterized by warm and humid conditions. With a minimum temperature of 15°C (60°F) and an average of 26°C (78°F), the city feels alive under the sun. Daytime temperatures often reach a maximum of 35°C (96°F), inviting residents and visitors alike to enjoy outdoor festivities. As the warmest month, August stands out as a vibrant period in the annual weather cycle, following a gradual increase in temperatures from the cooler early months of the year. This warmth, coupled with the lingering heat from July, sets the stage for lush landscapes and a thriving community, making Chattanooga a delightful summer destination.
August in Chattanooga typically brings a moderate level of precipitation, with an average of 121 mm (4.8 in) of rain over 14 days. This amount reflects a slight increase from the 106 mm (4.2 in) recorded in July, suggesting that late summer often sees a bit more moisture. Interestingly, the consistency of rainfall days throughout the summer months, particularly with both July and August featuring 14 rainy days, highlights a trend of frequent but manageable downpours. As the city transitions into fall, the precipitation begins to taper, with September also showing a decrease to 106 mm (4.2 in). This gradual shift not only underscores Chattanooga's humid subtropical climate but also sets the stage for the upcoming cooler, drier months ahead.
In Chattanooga, United States, August marks a notable shift in humidity levels, dropping to 67% from the higher figures of the preceding months. This decrease illustrates a gradual transition towards drier conditions as summer wanes, contrasting sharply with the 87% humidity typical of winter months like January and February. The trend throughout the year shows that humidity peaks during colder months, remaining consistently high until reaching July, where it begins its descent. By August, the refreshing lower humidity not only makes the heat of summer feel more bearable but also sets the stage for a drier September, which drops further to 64%. This natural ebb and flow in humidity levels highlights Chattanooga's unique climate rhythm, showcasing warm, humid summers followed by progressively drier fall months.
In August, Chattanooga experiences a UV Index of 10, indicating a very high exposure category. As summer peaks, the risk of harm from unprotected sun exposure remains elevated, with a burn time of just 15 minutes for fair-skinned individuals. This trend reflects a transition from the extreme UV levels observed in June and July, yet still demands attention for sun safety. As the month progresses into fall, the index begins to dip, but August serves as a reminder of the importance of protection against harmful UV rays. For more information, visit Chattanooga UV Index.
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August in Chattanooga basks in 305 hours of sunshine, continuing the summer's trend of abundant light. This sun-soaked month sits just below the peak of July, which boasts 317 hours, marking a radiant high point for the year. The consistent increase in sunshine from January’s modest 146 hours through to April's 265 hours sets a clear trajectory toward the vibrant, sun-laden summer months. Following August, the hours begin to taper off into the more temperate fall, with September still enjoying a generous 276 hours. As the seasonal cycle progresses, the city transitions from the warmth of summer to the cooler embrace of autumn, yet August remains a radiant highlight in Chattanooga's calendar.
In Chattanooga, August brings a dramatic dip in the likelihood of sunny weather, with only 34% of days typically seeing sunlight. This is a notable decrease from the sunnier months of April and September, which boast chances of 52% and 49%, respectively. As summer peaks, one might expect more sun, but the data suggests that cloud cover may dominate. Following the patterns of earlier months, both June and July remain relatively low in sun exposure, hinting at an overall trend of variable summer weather. Thus, while August might not be a standout month for sunshine, it transitions into a season where clearer skies become more prevalent again as fall approaches.
In Chattanooga, United States, the month of August marks a gentle transition as daylight begins to wane from the longest summer days. With approximately 13 hours of sunlight, August retains the warmth of summer, but hints at the coming shift toward shorter days. This decline in daylight, starting from the peak of 14 hours in June and July, signals the gradual approach of autumn, where September further reduces daylight to 12 hours. The trends reflect a rhythmic ebb and flow of light, as each month dances between the abundance of summer and the cozy confines of the approaching fall.
In August, Chattanooga experiences its calmest winds of the year, with an average speed of just 1.6 m/s (4 mph). This decline in wind intensity follows a gradual decrease from the spring months, where winds were slightly brisker. As summer reaches its peak, the air feels stiller, inviting residents and visitors alike to enjoy the warm, sultry atmosphere that characterizes the region. Notably, the wind speeds in August are the lowest compared to the year and are part of a downward trend that starts as early as June, reflecting the sultry, lazy days of summer. As this tranquil month closes, winds begin to pick up again in September, hinting at the subtle transition towards the fall season.
The weather in Chattanooga 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 Chattanooga and find detailed weather information for every month.
August and January present strikingly different weather patterns. In August, temperatures tend to range from a mild 15°C (60°F) to a hot 35°C (96°F), with an average of 26°C (78°F). This month also experiences significant humidity at 67% and about 121 mm (4.8 in) of precipitation over approximately 14 days. In contrast, January brings a much cooler climate, with temperatures dipping as low as -13°C (9°F) and averaging just 6°C (43°F). While maximum temperatures can reach up to 24°C (75°F), the month sees less precipitation, totaling 99 mm (3.9 in) over about 10 days, coupled with higher humidity at 87%. For a more detailed view of weather specifics in January, you can check Chattanooga weather in January.
When comparing the weather in August and February, we see a distinct contrast. August typically enjoys warmer temperatures, with daily averages around 26°C (78°F) and highs reaching up to 35°C (96°F), accompanied by a moderate humidity level of 67%. In contrast, February presents a much cooler climate, with average temperatures around 9°C (48°F) and a maximum of 26°C (79°F). Additionally, February experiences higher precipitation, totaling 171 mm (6.7 in) over 14 days, compared to August's 121 mm (4.8 in). This increased humidity of 87% in February further contributes to a feeling of dampness and chill. For more information, you can check Chattanooga weather in February.
In comparing the weather of August and March, a striking contrast emerges. August typically features warmer temperatures with a minimum of 15°C (60°F) and an average high of 35°C (96°F), while in March, temperatures can drop as low as -6°C (22°F) at night, with an average high of 29°C (84°F). August tends to be more humid, with an average humidity of 67% compared to March's higher 85%. However, March sees a greater amount of precipitation overall, with 169 mm (6.7 in) across 13 days, while August experiences 121 mm (4.8 in) over 14 days. For more detailed information, you can check Chattanooga weather in March.
In comparing the weather of August and April, one can observe significant differences in temperature and humidity levels. August tends to be significantly warmer, with average temperatures reaching 26°C (78°F) and highs peaking at 35°C (96°F). In contrast, April experiences milder conditions, with an average temperature of 16°C (60°F) and maximums of 30°C (87°F). Additionally, April is characterized by higher humidity at 82%, compared to August’s 67%. Precipitation is also notable in both months, with April receiving 156 mm (6.2 in) over 10 days, while August sees slightly less at 121 mm (4.8 in) over 14 days. For more detailed insight into April weather, visit Chattanooga weather in April.
In comparing the weather between May and August, we see distinct differences in temperature and humidity levels. August generally boasts warmer temperatures, with a minimum of 15°C (60°F) and an average of 26°C (78°F), while May starts cooler, with temperatures dipping down to a minimum of 4°C (39°F) but can reach up to 34°C (93°F). Precipitation is also notable in both months; August experiences more rainfall with 121 mm (4.8 in) over 14 days, compared to May's 96 mm (3.8 in) over 10 days. Humidity levels are higher in May at 83%, while August maintains a slightly lower humidity of 67%. For a closer look at what to expect, check out Chattanooga weather in May.
In comparing the weather between August and June, August tends to be warmer overall, with an average temperature of 26°C (78°F) compared to June’s 24°C (76°F). Although both months experience similar maximum temperatures, with August reaching up to 35°C (96°F) and June hitting 34°C (94°F), the humidity significantly differs, as August has a humidity level of 67% compared to June's higher 82%. Precipitation levels are quite comparable, with August receiving 121 mm (4.8 in) over 14 days and June slightly less at 120 mm (4.7 in) across 13 days. For a detailed look into June's weather in Chattanooga, you can visit Chattanooga weather in June.
In comparing the weather between July and August, we notice some subtle yet significant differences. July experiences slightly higher maximum temperatures, peaking at 37°C (98°F), while August sees a maximum of 35°C (96°F). Both months have an average temperature of around 26°C (80°F), but July's minimum temperature is a degree warmer at 16°C (61°F) compared to August's 15°C (60°F). Precipitation levels are also comparable, with July recording 106 mm (4.2 in) and August slightly higher at 121 mm (4.8 in), both experiencing rainfall over 14 days. Humidity is notably higher in July at 78%, compared to August’s 67%, making July feel a bit more muggy overall. For more detailed information, refer to Chattanooga weather in July.
August typically features warmer temperatures, with a minimum of 15°C (60°F) and an average high of 35°C (96°F), accompanied by higher humidity levels around 67%. This month also sees significant rainfall, averaging 121 mm (4.8 in) across about 14 days. In contrast, September experiences cooler conditions, with temperatures ranging from a minimum of 9°C (48°F) to an average high of 37°C (98°F). The precipitation decreases slightly to 106 mm (4.2 in) over just 8 days, and humidity drops to 64%. This marks a transition from the heat of summer to the milder temperatures of autumn. For more detailed information about September weather in Chattanooga, you can visit Chattanooga weather in September.
In August, temperatures in Chattanooga range from a minimum of 15°C (60°F) to a maximum of 35°C (96°F), with an average of 26°C (78°F). The month sees about 121 mm (4.8 in) of precipitation over approximately 14 days, accompanied by a humidity level of 67%. In contrast, October presents a more varied temperature range, with lows dipping to -2°C (29°F) and highs soaring to 37°C (99°F), while maintaining an average of 18°C (65°F). Although October experiences slightly higher precipitation at 133 mm (5.2 in) over around 10 days, the humidity rises to 74%. For more detailed information, check out Chattanooga weather in October.
In August, the weather is typically warm and humid, with temperatures ranging from a minimum of 15°C (60°F) to a maximum of 35°C (96°F) and an average of 26°C (78°F). The month experiences significant rainfall, totaling 121 mm (4.8 in) over 14 days, and a humidity level of 67%. In stark contrast, November brings cooler conditions, with temperatures dropping to a minimum of -6°C (21°F), rising to an average of 10°C (50°F), and peaking at 26°C (79°F). While November sees less precipitation at 72 mm (2.8 in) over just 8 days, humidity levels increase to 87%. For more details, check out Chattanooga weather in November.
August and December present starkly contrasting weather conditions. In August, temperatures typically range from a minimum of 15°C (60°F) to a maximum of 35°C (96°F), with an average of 26°C (78°F). This month experiences notable humidity at 67% and significant precipitation, averaging 121 mm (4.8 in) over about 14 days. In contrast, December sees much cooler temperatures, with a minimum of -8°C (18°F) and a maximum of 23°C (73°F), averaging only 8°C (46°F). Despite slightly higher precipitation of 139 mm (5.5 in) over just 10 days, December's humidity rises to 88%. For more insights on the weather in Chattanooga during December, you can visit Chattanooga weather in December.
As summer reaches its peak in Chattanooga, August typically ushers in warmer temperatures and heightened humidity compared to other months. The average daily temperature often hovers around a comfortable 26°C (78°F), but can soar to highs of 35°C (96°F) on particularly sweltering days. Rainfall is also a notable characteristic of August, with about 14 days receiving precipitation, contributing to a total of 121 mm (4.8 in) of rain. This combination of warmth and humidity makes for a distinctively muggy atmosphere that distinguishes August from the rest of the year. For a deeper dive into what to expect throughout the seasons, check out Chattanooga Climate.