11-Night Cruise on Carnival LuminosaAlaska Inside Passage & Glacier - Weather

Departing San Francisco, California on September 6, 2027, the Carnival Cruises ship Carnival Luminosa runs this 11-night Alaska Inside Passage & Glacier sailing. 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 San Francisco, California, Sitka, Alaska, Skagway, Alaska, with 5 more along the way. Scroll the daily outlook below to pack smart for every port of call.

1. Day 1 — Monday, Sep 6, 2027 — San Francisco, California

   San Francisco, California is a scheduled port of call on day 1 of the 11-night Alaska Inside Passage & Glacier cruise on Carnival Luminosa. Expected weather: partially cloudy with highs near 76°F.

2. Day 2 — Thursday, Sep 9, 2027 — Sitka, Alaska

   Sitka, Alaska is a scheduled port of call on day 2 of the 11-night Alaska Inside Passage & Glacier cruise on Carnival Luminosa. Expected weather: partially cloudy with highs near 60°F.

3. Day 3 — Friday, Sep 10, 2027 — Skagway, Alaska

   Skagway, Alaska is a scheduled port of call on day 3 of the 11-night Alaska Inside Passage & Glacier cruise on Carnival Luminosa. Expected weather: partially cloudy with highs near 54°F.

4. Day 4 — Saturday, Sep 11, 2027 — Juneau, Alaska

   Juneau, Alaska is a scheduled port of call on day 4 of the 11-night Alaska Inside Passage & Glacier cruise on Carnival Luminosa. Expected weather: partially cloudy with highs near 61°F.

5. Day 5 — Sunday, Sep 12, 2027 — Tracy Arm/Endicott Arm, Alaska

   Tracy Arm/Endicott Arm, Alaska is a scheduled port of call on day 5 of the 11-night Alaska Inside Passage & Glacier cruise on Carnival Luminosa. Expected weather: partially cloudy with highs near 59°F.

6. Day 6 — Monday, Sep 13, 2027 — Ketchikan, Alaska

   Ketchikan, Alaska is a scheduled port of call on day 6 of the 11-night Alaska Inside Passage & Glacier cruise on Carnival Luminosa. Expected weather: partially cloudy with highs near 58°F.

7. Day 7 — Tuesday, Sep 14, 2027 — Prince Rupert, British Columbia

   Prince Rupert, British Columbia is a scheduled port of call on day 7 of the 11-night Alaska Inside Passage & Glacier cruise on Carnival Luminosa. Expected weather: partially cloudy with highs near 61°F.

8. Day 8 — Friday, Sep 17, 2027 — San Francisco, California

   San Francisco, California is a scheduled port of call on day 8 of the 11-night Alaska Inside Passage & Glacier cruise on Carnival Luminosa. Expected weather: partially cloudy with highs near 74°F.