May is an excellent month at Glacier Bay — it ranks first of the twelve here. Expect about 30% fewer visitors than July, the park's peak — 82,478 visits on average. Days run around 57°F by afternoon and 35°F at night, with 16.8 hours of daylight.
May against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| May (this page) | 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 May a good time to visit Glacier Bay?
Yes — it is the park's best-scoring month. May ranks 1 of 12 at Glacier Bay on crowds, weather, daylight, and access together.
How crowded is Glacier Bay in May?
About 82,478 recreation visits on average — 30% below July, the park's peak.
How warm is Glacier Bay in May?
Average highs around 57°F and lows around 35°F at the Gustavus 2 Ne station.
← Glacier Bay in April · All months at Glacier Bay · Glacier Bay in June →