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Churaumi Aquarium in September

美ら海水族館 · Motobu · September 2026

Across all 30 days of September, Churaumi Aquarium averages 46/100 on the crowd index. The calmest day looks like Mon 14 Sep 2026 and the worst is Mon 21 Sep 2026.

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

Every day in September

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Quietest dates in September

  • Mon 14 Sep 2026Busy
  • Tue 15 Sep 2026Busy
  • Wed 16 Sep 2026Busy
  • Thu 17 Sep 2026Busy
  • Fri 18 Sep 2026Busy

Busiest dates in September

  • Mon 21 Sep 2026Busy
  • Tue 22 Sep 2026Busy
  • Wed 23 Sep 2026Busy
  • Sun 27 Sep 2026Busy
  • Sat 5 Sep 2026Busy

Weekday vs weekend

Weekdays average 44/100. Weekends and public holidays average 49/100.

Common questions

Is September a good time to visit Churaumi Aquarium?
September averages 46 out of 100 on the crowd index at Churaumi Aquarium. The quietest dates are around Mon 14 Sep, Tue 15 Sep, Wed 16 Sep, and the busiest is Mon 21 Sep.
What is the least crowded day in September at Churaumi Aquarium?
Mon 14 Sep 2026 — forecast "Busy" at 42/100.
Are weekends much busier at Churaumi Aquarium in September?
Weekdays average 44/100 and weekends and public holidays average 49/100, a difference of 5 points on the crowd index.

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Other months: January · February · March · April · May · June · July · August · 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.