What is the weather like in Indiana Dunes National Park vs Mammoth Cave National Park in August?

In August, Indiana Dunes National Park averages 26°C high / 19°C low with about 94 mm of rain; Mammoth Cave National Park averages 32°C high / 19°C low with about 106 mm.

Indiana Dunes National Park vs Mammoth Cave National Park in August

Indiana Dunes National Park is the better pick in August — 76 vs 59 on SeasonMap's comfort score. Indiana Dunes National Park is hot, rainy, muggy air, while Mammoth Cave National Park is sweltering, rainy.

Indiana Dunes National Park vs Mammoth Cave National Park — August climate, side by side

	🇺🇸 Indiana Dunes National Park	🇺🇸 Mammoth Cave National Park
Comfort score	76/100 (B)	59/100 (D)
Feels-like high	29°C	35°C
Avg high / low	26° / 19°	32° / 19°
Rainfall	94 mm	106 mm
Rainy days	7	9
Humidity	77%	72%
Air quality (AQI)	56	55

Monthly climate normals (ERA5 reanalysis). Comfort scores are SeasonMap estimates.

Month by month

Indiana Dunes National Park vs Mammoth Cave National Park in August — FAQ

Is August better in Indiana Dunes National Park or Mammoth Cave National Park?: Indiana Dunes National Park is the better pick in August — 76 vs 59 on SeasonMap's comfort score. Indiana Dunes National Park is hot, rainy, muggy air, while Mammoth Cave National Park is sweltering, rainy.
What is the weather like in Indiana Dunes National Park vs Mammoth Cave National Park in August?: In August, Indiana Dunes National Park averages 26°C high / 19°C low with about 94 mm of rain; Mammoth Cave National Park averages 32°C high / 19°C low with about 106 mm.