Last updated: February 24, 2025
In August, Louisville experiences a warm and humid climate, with maximum temperatures soaring to 35°C (95°F) and average highs around 25°C (76°F). The city witnesses a significant precipitation rate, totaling 94 mm (3.7 in) across approximately 11 days. This combination of warmth and a 70% humidity level creates a vibrant summer atmosphere that is characteristic of the region. While the minimum temperature dips to a comfortable 13°C (56°F), the fluctuating conditions can bring brief but intense rain showers, reminding residents and visitors alike of the dynamic weather typical of this time of year.
In August, Louisville experiences a delightful peak in summer temperatures, with a minimum of 13°C (56°F) and an average of 25°C (76°F), making it a comfortable time for outdoor activities. The maximum temperature can reach a sweltering 35°C (95°F), mirroring the hottest days of July. This month showcases a trend of high heat, but with slightly cooler averages compared to its predecessor, indicating that as summer starts to wind down, the nights bring a refreshing respite. Overall, August remains a vibrant month, balancing warmth with the promise of the cooler days ahead.
In August, Louisville experiences a moderate precipitation level of 94 mm (3.7 in), maintaining its typical summer ambiance with rain falling over 11 days. This marks a slight decrease compared to the heavier showers of June, which saw 151 mm (5.9 in), yet it remains consistent with the overall trend of summer months offering both warmth and occasional relief from the heat through rainfall. As the city transitions from the peak summer months into early autumn, this amount teeters just below the yearly average for precipitation, suggesting a gradual winding down of the rainy season. The relative stability in both precipitation amount and frequency through the months indicates a balanced weather pattern, essential for sustaining the lush greenery that Louisville is known for.
In August, Louisville experiences a notable drop in humidity, with levels at a comfortable 70%. This trend reflects a shift from the higher humidity levels observed earlier in the year, particularly the peak months of January and February, which hover around 87% and 85% respectively. As summer progresses into autumn, humidity gradually decreases, hitting its lowest point in September at 69%. This seasonal transition can provide a refreshing break from the muggy summer months, making August an ideal time for outdoor activities before the crispness of fall sets in. The decline in humidity is a welcome relief, especially following the warmer and more humid days of July, which maintains a humidity rate of 79%.
In August, Louisville experiences a very high UV Index of 10, with a burn time of just 15 minutes, aligning closely with the intense levels noted in the preceding months. This trend of increasing UV exposure from moderate levels in winter to extreme conditions in summer underscores the importance of sun protection during the warmer months. The UV Index peaks in June, followed by a slight drop in September, but still remains notably high. As summer transitions into fall, residents should remain vigilant about sun safety practices to mitigate the risks associated with UV radiation. For more detailed information, visit Louisville UV Index.
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August in Louisville shines with an impressive 318 hours of sunlight, making it one of the sunniest months of the year. Following the peak sun hours of July, which recorded a remarkable 345 hours, August maintains a vibrant glow, although it experiences a slight decline. This trend of abundance continues from the earlier months, where a gradual increase in sunlight hours is observable from January through June. The ascent peaks in the summer, showcasing Louisville's delightful sunshine before transitioning into the more moderate hours of September, which boasts 281 hours. Thus, as summer begins to wane, the pleasant warmth of August remains a cherished time, inviting residents and visitors alike to bask in the delightful summer glow.
In August, Louisville enjoys a 40% chance of sunny weather, making it a delightful summer month for outdoor activities. This figure represents a slight dip compared to the 47% likelihood in July, indicating that while the sun might not shine as brightly as in the height of summer, there's still a significant opportunity for clear skies. It's interesting to note that although August sees fewer sunny days compared to the months preceding it, it stands in stark contrast to the earlier months of the year, where January's 31% chance of sunshine feels more dismal. As summer transitions into fall, many residents and visitors can still expect a good measure of sunshine, particularly as September boasts an increased 57% chance, making it a perfect time to enjoy the tail end of the season.
In Louisville, United States, August marks a transitional month in daylight duration, featuring approximately 13 hours of sunlight. This decline from the peak 14 hours experienced in June and July signals the gradual shift toward autumn. The steady increase from the 9 hours in January to a summer high showcases the vibrant energy of longer days, allowing residents to enjoy outdoor activities throughout the warmer months. As daylight ebbs into September, it becomes evident that August serves as a bittersweet reminder of summer's fleeting nature, even as it retains a generous amount of sunlight for picnics and evening strolls.
In Louisville, the winds take on a gentle character during August, with an average wind speed of just 1.9 m/s (4 mph), marking a notable low for the year. This decline in wind speed aligns with the summer months, where calmer breezes are typical, allowing the heat of late summer to linger. The trend illustrates a gradual decrease from the more blustery early months of the year—where speeds average closer to 3 m/s (7 mph)—to a subdued August atmosphere. As the year transitions to September, a slight uptick in wind velocity hints at the return of more invigorating breezes, wrapping up the summer heat with nature's refreshing touch. Overall, August serves as a calm interlude in Louisville's weather narrative, inviting moments of leisurely enjoyment under the warm sun.
The weather in Louisville 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 Louisville and find detailed weather information for every month.
August and January present strikingly different weather patterns. In August, temperatures range from a mild 13°C (56°F) at night to a warm 35°C (95°F) during the day, with an average temperature of 25°C (76°F). The month is characterized by high humidity at 70% and approximately 94 mm (3.7 in) of precipitation over 11 days. Conversely, January features a stark contrast, with temperatures plummeting to a minimum of -18°C (0°F) and an average of only 2°C (35°F). Daytime highs reach 20°C (68°F), but the humidity is notably higher at 87%, and the precipitation is slightly less at 87 mm (3.4 in) over 9 days. For more details on January weather, visit Louisville weather in January.
August and February present strikingly different weather contrasts. In August, the climate is relatively warm with temperatures ranging from a mild 13°C (56°F) to a hot 35°C (95°F) and an average of 25°C (76°F). On the other hand, February experiences much colder temperatures, with lows dipping to -18°C (0°F) and an average of only 4°C (40°F), while the maximum temperature reaches a comfortable 26°C (79°F). While August sees 94 mm (3.7 in) of precipitation over 11 days, February has slightly more precipitation at 128 mm (5.0 in) across 13 days, along with higher humidity at 85%. For more specific details about February's weather, you can visit Louisville weather in February.
When comparing the weather in August and March, notable differences emerge. In August, temperatures are considerably warmer, with minimums around 13°C (56°F) and maximums reaching up to 35°C (95°F), while the average temperature sits at about 25°C (76°F). Conversely, March presents a much cooler climate, showcasing minimum temperatures plummeting to -12°C (11°F) and a max of 27°C (81°F), with an average of just 9°C (48°F). Additionally, March experiences higher humidity levels at 86% compared to 70% in August, and it also sees a greater amount of precipitation over more days, with 132 mm (5.2 in) over 13 days compared to 94 mm (3.7 in) across 11 days in August. For more detailed insights into March weather, visit Louisville weather in March.
In comparing the weather of August and April, notable differences in temperature and precipitation emerge. August features warmer temperatures with a minimum of 13°C (56°F), an average of 25°C (76°F), and a maximum of 35°C (95°F), while April starts chilly with a minimum of -3°C (27°F), averages 13°C (56°F), and reaches a maximum of 29°C (84°F). Precipitation is another point of contrast; April experiences higher rainfall, totaling 137 mm (5.4 in) over 12 days, compared to August's 94 mm (3.7 in) over 11 days. Additionally, April's humidity is slightly higher at 84%, compared to August's 70%. For more detailed information on the weather during this month, you can refer to Louisville weather in April.
In comparing the weather between August and May, August tends to be warmer with an average temperature of 25°C (76°F), while May has a cooler average of 20°C (67°F). The maximum temperatures in August can reach up to 35°C (95°F) compared to May's 33°C (92°F). However, May experiences slightly more precipitation, with 128 mm (5.0 in) over 14 days, compared to August's 94 mm (3.7 in) over 11 days. Humidity levels are also higher in May at 79%, compared to 70% in August, making the latter feel a bit more comfortable despite the heat. For more detailed insights, you can explore Louisville weather in May.
When comparing the weather in August to that in June, we see notable differences in temperature and precipitation. August experiences a warmer average temperature of 25°C (76°F) with a maximum reaching up to 35°C (95°F), while June has a slightly lower average of 24°C (75°F) with a maximum of 34°C (93°F). Additionally, June tends to be wetter, with 151 mm (5.9 in) of rainfall across 12 days, compared to August's 94 mm (3.7 in) over 11 days. The humidity also differs, as June boasts higher humidity levels at 82%, compared to August's 70%. For an in-depth look at June's weather specifics, you can visit Louisville weather in June.
When comparing the weather in August to that of July, both months exhibit warm temperatures with maximums reaching up to 35°C (95°F). However, August typically sees slightly cooler minimum temperatures averaging 13°C (56°F) compared to July's 15°C (60°F). The average temperature in August is around 25°C (76°F), which is marginally lower than July's average of 26°C (79°F). Precipitation levels are similar, with August receiving 94 mm (3.7 in) over 11 days, just slightly less than July's 98 mm (3.9 in) during the same number of days. Additionally, humidity levels in August average 70%, which is notably lower than the 79% recorded in July. For more details on July weather, visit Louisville weather in July.
August typically offers warm temperatures with an average of 25°C (76°F) and highs reaching up to 35°C (95°F). It experiences a fair amount of precipitation, with 94 mm (3.7 in) over 11 days and humidity levels around 70%. In contrast, September sees a slight dip in average temperature to 22°C (72°F), although maximum temperatures can still hit 36°C (97°F). This month also has a bit more rainfall, totaling 112 mm (4.4 in) over just 8 days, with humidity slightly lower at 69%. For more detailed weather insights, check out Louisville weather in September.
August and October present contrasting weather patterns. In August, temperatures range from a mild 13°C (56°F) at night, peaking at a warm 35°C (95°F) during the day, with an average temperature of 25°C (76°F). The month experiences moderate rainfall of 94 mm (3.7 in) over 11 days and a humidity level around 70%. In contrast, October sees colder temperatures, with minimums dropping to -1°C (31°F) and average highs of 16°C (60°F), although it can still reach a maximum of 35°C (96°F) on warmer days. Precipitation is slightly higher at 98 mm (3.9 in) across 10 days, accompanied by a marginally increased humidity of 76%. For more details, you can check Louisville weather in October.
August weather is characterized by warm temperatures, with an average of 25°C (76°F) and highs reaching up to 35°C (95°F). Humidity levels are relatively high at 70%, and the month experiences around 94 mm (3.7 in) of precipitation spread over 11 days. In contrast, November sees a significant drop in temperatures, with an average of only 7°C (45°F) and lows plummeting to -10°C (14°F). While precipitation remains similar at 88 mm (3.5 in), it occurs over fewer days, totaling 9. The humidity also rises to 88%, making the chilly air feel even colder. For more detailed insights, check out Louisville weather in November.
August and December bring starkly contrasting weather conditions. In August, temperatures range from a mild 13°C (56°F) at night to a scorching max of 35°C (95°F) during the day, with an average of 25°C (76°F). The month experiences considerable humidity at 70% and sees about 94 mm (3.7 inches) of rainfall over 11 days. In contrast, December is much chillier, with temperatures plummeting to a minimum of -14°C (8°F) and an average of just 5°C (41°F), peaking at 22°C (71°F). Despite higher precipitation at 106 mm (4.2 inches) spread across 10 days, the humidity spikes to 87%. For more details about December weather, check out Louisville weather in December.
August in Louisville stands out as a month of warmth and humidity, characterized by its baking temperatures that reach their peak compared to the cooler, more temperate months that precede it. While the average temperature hovers at a pleasant 25°C, the heat can soar to sweltering highs of 35°C, making it the hottest month of the year. The humidity, lingering around 70%, adds a sticky, tropical feel to the air, often contrasting with the crispness felt in spring and fall. However, the month also brings a fair share of rain, with plenty of days registering precipitation, marking a transition toward the more unpredictable weather of autumn. For a more comprehensive understanding of what to expect, explore the details here: Louisville Climate.