Glacier Bay in May: Crowds, Weather & What to Pack

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May is one of the best months of the year to visit Glacier Bay National Park: crowds run 70% of the July peak (82,478 average visits), days average 52°F with 16.8 hours of daylight. Computed from NPS and NOAA data.

Crowds in May

Glacier Bay averages 82,478 recreation visits in May — 70% of what July, the peak month, draws. Plan lodging and entries with that in mind — book early and start days at dawn.

Weather & daylight

Expect cool days (highs average 52°F), and mornings are chilly (lows average 41°F). This is one of the wetter months (4.7″ of precipitation on average). Mid-month daylight runs 16.8 hours.

NOAA 1991–2020 monthly normals, station ELFIN COVE, AK US (42 mi from park coordinates, 20 ft elevation) — conditions vary inside the park, especially with elevation. Daylight computed for the 15th of May.

What to pack for Glacier Bay in May

Computed from the month's weather normals above — not a generic list.

• Warm mid-layer (fleece or light puffy) — mornings average 41°F
• Rain shell + pack cover — 4.7″ of precipitation is normal this month
• Sturdy broken-in footwear, navigation and a basic first-aid kit — every park, every month
• Bear spray — recommended by the park in grizzly country (check current park regulations before you carry)

Common questions

See also: the best national parks to visit in May · Last verified 2026-07-16