Glacier Bay in March: Crowds, Weather & What to Pack
Harsh season · VisitWhen score 61/100 · #4 of 12 months
March is a harsh-season month at Glacier Bay National Park: crowds run under 1% of the July peak (243 average visits). Weather: highs average 40°F and lows 31°F, with 7.8″ of precipitation and 11.7 hours of daylight. Roads and services are only partly open this month — see the access note below. Computed from NPS and NOAA data.
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Bring for Glacier Bay in March
- Insulated jacket, beanie and glovesSee it on AmazonWhy: nights average 31°F, below freezing.
- Rain shell + pack coverSee it on AmazonWhy: 7.8″ of precipitation is normal this month.
- Traction devices (microspikes) and gaitersSee it on AmazonWhy: 20″ normal snowfall.
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Glacier Bay in March: what the park service says
March sees Glacier Bay's wildlife cycle start to turn. The park describes many species that disappear from the bay over winter and return or re-emerge in spring. Humpback whales, for one, feed in Glacier Bay in summer but range elsewhere in winter to breed and give birth. The park stays open, but visitor services remain very limited outside the late-May to early-September season.
Source: NPS, checked 2026-11-05.
Crowds in March
Glacier Bay averages 243 recreation visits in March — under 1% of what July, the peak month, draws. That crowd level sets the tone for parking, permits and lodging — crowds are thin by this park's standards.
Weather & daylight
It is properly cold (highs average 40°F), and nights drop below freezing (lows average 31°F). This is one of the wetter months (7.8″ of precipitation on average). Normal snowfall is 20″ — expect snow on the ground. Mid-month daylight runs 11.7 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 March.
What to pack for Glacier Bay in March
Computed from the month's weather normals above — not a generic list.
- Insulated jacket, beanie and gloves — nights average 31°F, below freezing
- Rain shell + pack cover — 7.8″ of precipitation is normal this month
- Traction devices (microspikes) and gaiters — 20″ normal snowfall (compare other options)
- Insulated, waterproof boots — plus navigation and a basic first-aid kit — 20″ of snow is normal this month
- Bear spray — recommended by the park in grizzly country (check current park regulations before you carry)
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Want quieter or kinder conditions? The computed best months for Glacier Bay are April and May.
Also at their best in March
Other parks whose computed March verdict is a best window — same NPS × NOAA formula:
- Great Basin in March — 10% of peak crowds, highs 48°F, score 81/100
- Shenandoah in March — 23% of peak crowds, highs 55°F, score 78/100
- Wind Cave in March — 15% of peak crowds, highs 50°F, score 78/100
- Mesa Verde in March — 17% of peak crowds, highs 47°F, score 77/100
Common questions
Is Glacier Bay crowded in March?
No — March is one of the quieter months: under 1% of the July peak, averaging 243 visits (NPS, 2021–2025). See every month at Glacier Bay.
What is the weather like in Glacier Bay in March?
Average highs of 40°F, lows of 31°F, 7.8″ of precipitation (NOAA 1991–2020 normals, ELFIN COVE, AK US station). Compare it with other national parks in March.
What should I pack for Glacier Bay in March?
Insulated jacket, beanie and gloves; Rain shell + pack cover; Traction devices (microspikes) and gaiters — the full weather-computed list is on this page. Going in April instead? Glacier Bay in April has its own list.
Is everything open at Glacier Bay in March?
Park waters are open year-round, but tour boats and most visitor services operate roughly late May–early September. Always check the park's live NPS alerts for current conditions.
See also: the best national parks to visit in March · Last verified 2026-09-24