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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Join Royal Caribbean Cruises's Serenade Of The Seas for a 7-night voyage on the Alaska Inside Passage Cruise route, setting out from Vancouver, Canada on September 13, 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 Vancouver, Canada, Sitka, Alaska, Juneau, Alaska, with 3 more along the way. The forecasts below break the weather down port by port.
Vancouver, Canada is a scheduled port of call on day 1 of the 7-night Alaska Inside Passage Cruise cruise on Serenade Of The Seas. Expected weather: partially cloudy with highs near 71°F.
Sitka, Alaska is a scheduled port of call on day 2 of the 7-night Alaska Inside Passage Cruise cruise on Serenade Of The Seas. Expected weather: partially cloudy with highs near 59°F.
Juneau, Alaska is a scheduled port of call on day 3 of the 7-night Alaska Inside Passage Cruise cruise on Serenade Of The Seas. Expected weather: partially cloudy with highs near 60°F.
Ketchikan, Alaska is a scheduled port of call on day 4 of the 7-night Alaska Inside Passage Cruise cruise on Serenade Of The Seas. Expected weather: partially cloudy with highs near 57°F.
Prince Rupert, British Columbia is a scheduled port of call on day 5 of the 7-night Alaska Inside Passage Cruise cruise on Serenade Of The Seas. Expected weather: partially cloudy with highs near 60°F.
Vancouver, Canada is a scheduled port of call on day 6 of the 7-night Alaska Inside Passage Cruise cruise on Serenade Of The Seas. Expected weather: partially cloudy with highs near 68°F.
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