The honest answer: the visitation records show Glacier Bay effectively closed in December — about 210 recreation visits against 117,153 in July. No road connects to the outside; access is by plane or boat via Gustavus, and most visitors arrive by cruise ship.
December against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| December (this page) | Closed | 210 | −100% | 35°F | 24°F | — | 6.4 h |
| May (best) | Excellent | 82,478 | −30% | 57°F | 35°F | — | 16.8 h |
| July (peak crowds) | Good | 117,153 | peak | 63°F | 47°F | — | 17.6 h |
Weather figures are for the Bartlett Cove area — the Gustavus 2 Ne station. Visits are 2021–2025 averages; climate normals cover 1991–2020. Conditions vary across the park; check current status before you go.
Common questions
Is December a good time to visit Glacier Bay?
Mostly no — the visitation records show the park effectively closed in December. December ranks 12 of 12 at Glacier Bay on crowds, weather, daylight, and access together.
How crowded is Glacier Bay in December?
About 210 recreation visits on average — 100% below July, the park's peak.
How warm is Glacier Bay in December?
Average highs around 35°F and lows around 24°F at the Gustavus 2 Ne station.
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