Great Smoky Mountains National Park vs Olympic National Park in September

Great Smoky Mountains National Park is the better pick in September — 84 vs 78 on SeasonMap's comfort score. Great Smoky Mountains National Park is nice, rainy, clean air, while Olympic National Park is cool, rainy, clean air.

Great Smoky Mountains National Park vs Olympic National ParkSeptember climate, side by side

Great Smoky Mountains National ParkOlympic National Park
Comfort score84/100 (A)78/100 (B)
Feels-like high23°C12°C
Avg high / low23° / 14°14° / 6°
Rainfall146 mm148 mm
Rainy days911
Humidity78%75%
Air quality (AQI)3731

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

Great Smoky Mountains National Park vs Olympic National Park in September — FAQ

Is September better in Great Smoky Mountains National Park or Olympic National Park?
Great Smoky Mountains National Park is the better pick in September — 84 vs 78 on SeasonMap's comfort score. Great Smoky Mountains National Park is nice, rainy, clean air, while Olympic National Park is cool, rainy, clean air.
What is the weather like in Great Smoky Mountains National Park vs Olympic National Park in September?
In September, Great Smoky Mountains National Park averages 23°C high / 14°C low with about 146 mm of rain; Olympic National Park averages 14°C high / 6°C low with about 148 mm.