August weather forecast
Mammoth Cave National Park, KY

August ushers in a minor respite from the extreme summer weather seen in July. While remaining considerably warm, temperature and UV index show slight declines. The extended daylight hours continue to contract gradually, hinting at the upcoming autumn season. Rainfall remains consistent, ensuring the land remains hydrated amidst the summer heat. For tourists and locals, August continues to offer the joys of summer without the severe heat of the preceding month.

Temperature

Mammoth Cave National Park starts August with an average high-temperature of a still tropical 86°F (30°C), a minor shift from July's 87.8°F (31°C). August, marked by an average low-temperature of 64.4°F (18°C), indicates a large temperature drop from the daytime peak.

Rainfall

In August, in Mammoth Cave National Park, the rain falls for 9 days. Throughout August, 3.78" (96mm) of precipitation is accumulated. In Mammoth Cave National Park, Kentucky, during the entire year, the rain falls for 126 days and collects up to 50.63" (1286mm) of precipitation.

Daylight

In August, the average length of the day is 13h and 32min.
On the first day of August in Mammoth Cave National Park, sunrise is at 5:49 am and sunset at 7:51 pm. On the last day of the month, sunrise is at 6:14 am and sunset at 7:14 pm CDT.

Sunshine

In August, the average sunshine in Mammoth Cave National Park is 9h.

UV index

In August, the average daily maximum UV index is 9. A UV Index value of 8 to 10 symbolizes a very high health risk from exposure to the Sun's UV radiation for ordinary individuals.
Note: In August, the maximum UV index of 9 suggests this advice:
Being unprotected puts skin and eyes at risk of rapid damage. Always be safe. Seek shade and limit direct sun exposure between 10 a.m. and 4 p.m., the peak period for UV radiation. Keep in mind that shade structures like parasols or canopies do not offer complete sun protection. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Even on a cloudy day, a sunscreen with at least a 30 SPF should be applied generously and frequently reapplied, including after a swim or outdoor exercise.