Ruby Princess — 10-Night Inside Passage (Roundtrip San Francisco) Cruise Weather

The Ruby Princess sails a 10-night Inside Passage (Roundtrip San Francisco) itinerary with Princess Cruises, departing San Francisco, California on May 31, 2027. It's a classic Alaska cruise. Travelers sailing in May can generally expect cool days, crisp nights, and long hours of daylight typical of the Alaska cruise season — with rain never far off. Ports of call include San Francisco, California, Sitka, Alaska, Juneau, Alaska, with 4 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Monday, May 31, 2027 — San Francisco, California

   San Francisco, California is a scheduled port of call on day 1 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess.

2. Day 2 — Thursday, Jun 3, 2027 — Sitka, Alaska

   Sitka, Alaska is a scheduled port of call on day 2 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess.

3. Day 3 — Friday, Jun 4, 2027 — Juneau, Alaska

   Juneau, Alaska is a scheduled port of call on day 3 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess.

4. Day 4 — Saturday, Jun 5, 2027 — Glacier Bay, Alaska

   Glacier Bay, Alaska is a scheduled port of call on day 4 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess.

5. Day 5 — Sunday, Jun 6, 2027 — Ketchikan, Alaska

   Ketchikan, Alaska is a scheduled port of call on day 5 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess.

6. Day 6 — Monday, Jun 7, 2027 — Prince Rupert, British Columbia

   Prince Rupert, British Columbia is a scheduled port of call on day 6 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess.

7. Day 7 — Thursday, Jun 10, 2027 — San Francisco, California

   San Francisco, California is a scheduled port of call on day 7 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess.