7-Night Cruise on MSC PoesiaAlaska - Weather

The MSC Poesia sails a 7-night Alaska itinerary with MSC Cruises, departing Seattle, Washington on September 7, 2026. 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, Tracy Arm/Endicott Arm, Alaska, with 3 more along the way. Use the day-by-day forecast below to plan what to pack for each stop.

1. Day 1 — Monday, Sep 7, 2026 — Seattle, Washington

   Seattle, Washington is a scheduled port of call on day 1 of the 7-night Alaska cruise on MSC Poesia.

2. Day 2 — Tuesday, Sep 8, 2026 — At Sea

   Day 2 of 8 is a day at sea aboard MSC Poesia, cruising between ports on the Alaska itinerary.

3. Day 3 — Wednesday, Sep 9, 2026 — Ketchikan, Alaska

   Ketchikan, Alaska is a scheduled port of call on day 3 of the 7-night Alaska cruise on MSC Poesia.

4. Day 4 — Thursday, Sep 10, 2026 — Tracy Arm/Endicott Arm, Alaska

   Tracy Arm/Endicott Arm, Alaska is a scheduled port of call on day 4 of the 7-night Alaska cruise on MSC Poesia.

5. Day 5 — Friday, Sep 11, 2026 — Icy Strait Point, Alaska

   Icy Strait Point, Alaska is a scheduled port of call on day 5 of the 7-night Alaska cruise on MSC Poesia.

6. Day 6 — Saturday, Sep 12, 2026 — At Sea

   Day 6 of 8 is a day at sea aboard MSC Poesia, cruising between ports on the Alaska itinerary.

7. Day 7 — Sunday, Sep 13, 2026 — Victoria, British Columbia

   Victoria, British Columbia is a scheduled port of call on day 7 of the 7-night Alaska cruise on MSC Poesia.

8. Day 8 — Monday, Sep 14, 2026 — Seattle, Washington

   Seattle, Washington is a scheduled port of call on day 8 of the 7-night Alaska cruise on MSC Poesia.