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Hakone (Lake Ashi & Owakudani) in May

箱根（芦ノ湖・大涌谷） · Hakone · May 2027

Across all 31 days of May, Hakone (Lake Ashi & Owakudani) averages 40/100 on the crowd index. The calmest day looks like Mon 31 May 2027 and the worst is Mon 3 May 2027.

No major curated events fall in May at this location — crowd levels are driven mostly by weekends, holidays and season.

Every day in May

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Quietest dates in May

  • Mon 31 May 2027Moderate
  • Tue 25 May 2027Moderate
  • Wed 26 May 2027Moderate
  • Thu 27 May 2027Moderate
  • Fri 28 May 2027Moderate

Busiest dates in May

  • Mon 3 May 2027Busy
  • Sat 1 May 2027Busy
  • Sun 2 May 2027Busy
  • Tue 4 May 2027Busy
  • Wed 5 May 2027Busy

Weekday vs weekend

Weekdays average 36/100. Weekends and public holidays average 44/100.

Common questions

Is May a good time to visit Hakone (Lake Ashi & Owakudani)?
May averages 40 out of 100 on the crowd index at Hakone (Lake Ashi & Owakudani). The quietest dates are around Mon 31 May, Tue 25 May, Wed 26 May, and the busiest is Mon 3 May.
What is the least crowded day in May at Hakone (Lake Ashi & Owakudani)?
Mon 31 May 2027 — forecast "Moderate" at 33/100.
Are weekends much busier at Hakone (Lake Ashi & Owakudani) in May?
Weekdays average 36/100 and weekends and public holidays average 44/100, a difference of 8 points on the crowd index.

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Other months: January · February · March · April · June · July · August · September · October · November · December

How this forecast is built

Each day's crowd level combines the landmark's baseline popularity, Japanese national holidays (computed from the official rules, including substitute holidays), curated local festival and season windows, a national tourism seasonality curve derived from published visitor-arrival patterns, and live rain probability from the Japan Meteorological Agency — weighted by how much that specific place actually empties out in the rain.

It's a model, not a measurement. It's good at "this weekend will be much worse than the following Tuesday" and it is not a headcount. Days beyond the JMA's ~7-day window use seasonal rain climatology.