May is an excellent month at Mount Rainier — it ranks first of the twelve here. Expect about 80% fewer visitors than July, the park's peak — 85,473 visits on average. Days run around 48°F by afternoon and 33°F at night, with 15 hours of daylight.
May against the park's best
| Month | Verdict | Avg. visits | vs. peak | High | Low | Snow | Daylight |
|---|---|---|---|---|---|---|---|
| May (this page) | Excellent | 85,473 | −80% | 48°F | 33°F | — | 15 h |
| July (peak crowds) | Good | 420,918 | peak | 62°F | 44°F | — | 15.5 h |
Weather figures are for the Paradise area (5,400 ft) — the Rainier Paradise RS 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 Mount Rainier?
Yes — it is the park's best-scoring month. May ranks 1 of 12 at Mount Rainier on crowds, weather, daylight, and access together.
How crowded is Mount Rainier in May?
About 85,473 recreation visits on average — 80% below July, the park's peak.
How warm is Mount Rainier in May?
Average highs around 48°F and lows around 33°F at the Rainier Paradise RS station.
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