10-Night Cruise on Royal PrincessInside Passage (Seattle to Vancouver) - Weather

Join Princess Cruises's Royal Princess for a 10-night voyage on the Inside Passage (Seattle to Vancouver) route, setting out from Seattle, Washington on September 11, 2027. It's a classic Alaska cruise. Travelers sailing in September 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 Seattle, Washington, Ketchikan, Alaska, Juneau, Alaska, with 5 more along the way. The forecasts below break the weather down port by port.

1. Day 1 — Saturday, Sep 11, 2027 — Seattle, Washington

   Seattle, Washington is a scheduled port of call on day 1 of the 10-night Inside Passage (Seattle to Vancouver) cruise on Royal Princess. Expected weather: partially cloudy with highs near 71°F.

2. Day 2 — Sunday, Sep 12, 2027 — At Sea

   Day 2 of 11 is a day at sea aboard Royal Princess, cruising between ports on the Inside Passage (Seattle to Vancouver) itinerary.

3. Day 3 — Monday, Sep 13, 2027 — Ketchikan, Alaska

   Ketchikan, Alaska is a scheduled port of call on day 3 of the 10-night Inside Passage (Seattle to Vancouver) cruise on Royal Princess. Expected weather: partially cloudy with highs near 58°F.

4. Day 4 — Tuesday, Sep 14, 2027 — Juneau, Alaska

   Juneau, Alaska is a scheduled port of call on day 4 of the 10-night Inside Passage (Seattle to Vancouver) cruise on Royal Princess. Expected weather: partially cloudy with highs near 60°F.

5. Day 5 — Wednesday, Sep 15, 2027 — Skagway, Alaska

   Skagway, Alaska is a scheduled port of call on day 5 of the 10-night Inside Passage (Seattle to Vancouver) cruise on Royal Princess. Expected weather: partially cloudy with highs near 53°F.

6. Day 6 — Thursday, Sep 16, 2027 — Icy Strait Point, Alaska

   Icy Strait Point, Alaska is a scheduled port of call on day 6 of the 10-night Inside Passage (Seattle to Vancouver) cruise on Royal Princess. Expected weather: partially cloudy with highs near 54°F.

7. Day 7 — Friday, Sep 17, 2027 — Sitka, Alaska

   Sitka, Alaska is a scheduled port of call on day 7 of the 10-night Inside Passage (Seattle to Vancouver) cruise on Royal Princess. Expected weather: partially cloudy with highs near 58°F.

8. Day 8 — Saturday, Sep 18, 2027 — Glacier Bay, Alaska

   Glacier Bay, Alaska is a scheduled port of call on day 8 of the 10-night Inside Passage (Seattle to Vancouver) cruise on Royal Princess. Expected weather: partially cloudy with highs near 54°F.

9. Day 9 — Sunday, Sep 19, 2027 — At Sea

   Day 9 of 11 is a day at sea aboard Royal Princess, cruising between ports on the Inside Passage (Seattle to Vancouver) itinerary.

10. Day 10 — Monday, Sep 20, 2027 — At Sea

    Day 10 of 11 is a day at sea aboard Royal Princess, cruising between ports on the Inside Passage (Seattle to Vancouver) itinerary.

11. Day 11 — Tuesday, Sep 21, 2027 — Vancouver, Canada

    Vancouver, Canada is a scheduled port of call on day 11 of the 10-night Inside Passage (Seattle to Vancouver) cruise on Royal Princess. Expected weather: partially cloudy with highs near 69°F.