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Alaska in Summer: A Week-by-Week Guide

May 6, 2026·Cruise Wave Editorial
Alaska in Summer: A Week-by-Week Guide

When to sail Alaska

Alaska's cruise season runs roughly mid-May to late September. Each window has trade-offs.

Mid-May to early June

  • Lower prices, fewer crowds
  • Cooler temperatures (can be 8–14°C)
  • Spring wildlife emerging

Mid-June to mid-August (peak)

  • Long daylight hours (18+ hours of sun)
  • Best whale watching
  • Highest prices

Late August to September

  • Northern Lights start becoming visible on later sailings
  • Salmon runs and bear viewing peak
  • Cooler, occasional rain

What to pack

Layers, waterproof shell, gloves, hat, comfortable hiking shoes for shore excursions.