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Halloween at the Seattle Aquarium 2026

Family event in Seattle, WA, confirmed for Halloween 2026 on its official site.

Halloween-day trick-or-treat route around the aquarium's habitats, with costumed visitors welcome.

• trick-or-treating
• costume-friendly

Quick Answers

When is Halloween at the Seattle Aquarium open for Halloween 2026?

Halloween at the Seattle Aquarium: Saturday, Oct. 31, 2026. Dates can change, so check the official site before you go.

Is Halloween at the Seattle Aquarium scary for kids?

BooMap suggests All Ages and rates it 1 of 5 ghosts on our scare scale.

Where is Halloween at the Seattle Aquarium?

1483 Alaskan Way, Seattle, WA 98101.

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