13-Night Cruise on Crystal SerenityTransoceanic Yokohama Tokyo To Seward Anchorage, Alaska - Weather

Departing Yokohama, Japan on May 8, 2027, the Crystal Cruises ship Crystal Serenity runs this 13-night Transoceanic Yokohama Tokyo To Seward Anchorage, Alaska sailing. It's a classic Alaska cruise. Travelers sailing in May 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 Yokohama, Japan, Hitachinaka, Japan, Sendai, Japan, with 5 more along the way. Scroll the daily outlook below to pack smart for every port of call.

1. Day 1 — Saturday, May 8, 2027 — Yokohama, Japan

   Yokohama, Japan is a scheduled port of call on day 1 of the 13-night Transoceanic Yokohama Tokyo To Seward Anchorage, Alaska cruise on Crystal Serenity. Expected weather: partially cloudy with highs near 70°F.

2. Day 2 — Sunday, May 9, 2027 — Hitachinaka, Japan

   Hitachinaka, Japan is a scheduled port of call on day 2 of the 13-night Transoceanic Yokohama Tokyo To Seward Anchorage, Alaska cruise on Crystal Serenity. Expected weather: partially cloudy with highs near 65°F.

3. Day 3 — Monday, May 10, 2027 — Sendai, Japan

   Sendai, Japan is a scheduled port of call on day 3 of the 13-night Transoceanic Yokohama Tokyo To Seward Anchorage, Alaska cruise on Crystal Serenity. Expected weather: partially cloudy with highs near 61°F.

4. Day 4 — Tuesday, May 11, 2027 — Hakodate, Japan

   Hakodate, Japan is a scheduled port of call on day 4 of the 13-night Transoceanic Yokohama Tokyo To Seward Anchorage, Alaska cruise on Crystal Serenity. Expected weather: partially cloudy with highs near 52°F.

5. Day 5 — Wednesday, May 12, 2027 — Aomori, Japan

   Aomori, Japan is a scheduled port of call on day 5 of the 13-night Transoceanic Yokohama Tokyo To Seward Anchorage, Alaska cruise on Crystal Serenity. Expected weather: partially cloudy with highs near 68°F.

6. Day 6 — Thursday, May 13, 2027 — Kushiro, Japan

   Kushiro, Japan is a scheduled port of call on day 6 of the 13-night Transoceanic Yokohama Tokyo To Seward Anchorage, Alaska cruise on Crystal Serenity. Expected weather: partially cloudy with highs near 45°F.

7. Day 7 — Wednesday, May 19, 2027 — Kodiak, Alaska

   Kodiak, Alaska is a scheduled port of call on day 7 of the 13-night Transoceanic Yokohama Tokyo To Seward Anchorage, Alaska cruise on Crystal Serenity. Expected weather: partially cloudy with highs near 49°F.

8. Day 8 — Thursday, May 20, 2027 — Seward, Alaska

   Seward, Alaska is a scheduled port of call on day 8 of the 13-night Transoceanic Yokohama Tokyo To Seward Anchorage, Alaska cruise on Crystal Serenity. Expected weather: partially cloudy with highs near 50°F.