Just a knot longer
Hang tight. We're checking the weather.
Just a knot longer
Hang tight. We're checking the weather.
United States · Ships call at Seattle, Washington
Mild, the rain starts to come back
Seattle in September offers pleasant temperatures, with highs around 69°F and comfortable lows near 49°F. Rain is uncommon, with only about 3 rainy days expected across the month, ideal for beach days and shore excursions. Mild, the rain starts to come back.
This is one of the most popular months to visit Seattle, so book shore excursions early. The top snorkeling spots and tours sell out fast. Lightweight layers work well: a light cardigan for evenings on deck and breathable tops for port days cover most conditions.
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Sailings that are at sea during September, with the date each one leaves port.
Great Alaska Explorer
HAL Cruises
Sails Aug 22, 2027
Gold Rush & Glaciers Vancouver to Seattle
Oceania Cruises
Sails Aug 23, 2027
Alaska: Inside Passage & Hubbard Glacier
Virgin Voyages Cruises
Sails Aug 24, 2027
Alaska Inside Passage & Glacier
Carnival Cruises
Sails Aug 26, 2027
Alaska Adventure Cruise
Royal Caribbean Cruises
Sails Aug 27, 2027
Alaska Dawes Glacier
Celebrity Cruises
Sails Aug 27, 2027
Most Seattle cruises leave from Smith Cove, Pier 91, a few miles north of downtown, and some use Pier 66 on the downtown waterfront. Sea-Tac Airport is 30 to 45 minutes away by car. The Link light rail runs from the airport to downtown, but not to Pier 91.
The average high temperature in Seattle during September is 69°F, with a low of 49°F.
Seattle typically sees 3 days of rain in September. Mild, the rain starts to come back.
For a September cruise to Seattle, you should pack layers, a light jacket, and comfortable walking shoes.