Your Cruise, Your Weather
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Loading Travel Forecast…Loading Travel Forecast…Loading Travel Forecast…Join Princess Cruises's Ruby Princess for a 10-night voyage on the Inside Passage (Roundtrip San Francisco) route, setting out from San Francisco, California on August 1, 2026. It's a classic Alaska cruise. Travelers sailing in August 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, Ketchikan, Alaska, Juneau, Alaska, with 4 more along the way. The forecasts below break the weather down port by port.
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. Expected weather: partially cloudy with highs near 73°F.
Ketchikan, Alaska is a scheduled port of call on day 2 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess. Expected weather: partially cloudy with highs near 61°F.
Juneau, Alaska is a scheduled port of call on day 3 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess. Expected weather: partially cloudy with highs near 68°F.
Haines, Alaska is a scheduled port of call on day 4 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess. Expected weather: partially cloudy with highs near 66°F.
Tracy Arm/Endicott Arm, Alaska is a scheduled port of call on day 5 of the 10-night Inside Passage (Roundtrip San Francisco) cruise on Ruby Princess. Expected weather: partially cloudy with highs near 64°F.
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. Expected weather: partially cloudy with highs near 65°F.
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. Expected weather: partially cloudy with highs near 74°F.
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