Great Smoky Mountains in May: Crowds, Weather & What to Pack
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May is one of the best months of the year to visit Great Smoky Mountains National Park: crowds run 77% of the October peak (1,240,272 average visits). Weather: highs average 66°F and lows 47°F, with 6.2″ of precipitation and 14 hours of daylight. Computed from NPS and NOAA data.
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Bring for Great Smoky Mountains in May
- Rain shell + pack coverSee it on AmazonWhy: 6.2″ of precipitation is normal this month.
- Waterproof boots — plus navigation and a basic first-aid kitSee it on AmazonWhy: 6.2″ of rain is normal this month.
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Crowds in May
Great Smoky Mountains averages 1,240,272 recreation visits in May — 77% of what October, the peak month, draws. Trailheads and parking fill accordingly — book early and start days at dawn.
Weather & daylight
Days are mild (highs average 66°F), and nights stay mild (lows average 47°F). This is one of the wetter months (6.2″ of precipitation on average). Mid-month daylight runs 14 hours.
NOAA 1991–2020 monthly normals, station NEWFOUND GAP, TN US (0 mi from park coordinates, 5,040 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of May.
What to pack for Great Smoky Mountains in May
Computed from the month's weather normals above — not a generic list.
- Rain shell + pack cover — 6.2″ of precipitation is normal this month
- Waterproof boots — plus navigation and a basic first-aid kit — 6.2″ of rain is normal this month
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Also at their best in May
Other parks whose computed May verdict is a best window — same NPS × NOAA formula:
- Lake Clark in May — 7% of peak crowds, highs 59°F, score 96/100
- North Cascades in May — 11% of peak crowds, highs 69°F, score 96/100
- Katmai in May — 1% of peak crowds, highs 52°F, score 95/100
- Gates of the Arctic in May — 12% of peak crowds, highs 56°F, score 94/100
Common questions
Is Great Smoky Mountains crowded in May?
Yes — May runs 77% of Great Smoky Mountains's peak, averaging 1,240,272 recreation visits (NPS, 2021–2025).
What is the weather like in Great Smoky Mountains in May?
Average highs of 66°F, lows of 47°F, 6.2″ of precipitation (NOAA 1991–2020 normals, NEWFOUND GAP, TN US station).
What should I pack for Great Smoky Mountains in May?
Rain shell + pack cover; Waterproof boots — plus navigation and a basic first-aid kit — the full weather-computed list is on this page.
See also: the best national parks to visit in May · Last verified 2026-09-24