Calendar · 2026-06
June 2026 — Tsuyu, hydrangeas, and the year's halfway sweet
Past-month archive. Dates and conditions here refer to 2026-06; they are not announcements for the next season. Check the linked organisers for current plans.
June brings rainy-season planning, hydrangeas and the half-year observances associated with minazuki sweets. Rainfall and flowering differ by region: use a local forecast and a venue’s own reports rather than treating June as uniformly wet, quiet or inexpensive.
Events
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Late spring to summer; dates vary by region and year
Tsuyu (rainy season): regional timing
Regions covered by JMA’s rainy-season reports
JMA defines tsuyu by a period with frequent cloudy or rainy days and reports its start and end by region. The transition is gradual and differs by year. Check local forecasts, heavy-rain warnings and transport information when planning outdoor days.
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Early June–late July seasonal flowering window
Hydrangeas at Hakone Venetian Glass Museum
Sengokuhara, Hakone
The museum’s May 13, 2026 announcement describes early, middle and late-flowering hydrangeas across June and July. This was a seasonal estimate, not a promise of peak flowers on a particular date. The announcement also listed a July 13–17 closure; consult the museum’s calendar and flower reports for a later visit.
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Early summer; local viewing periods vary
Hotaru (firefly) viewing
Designated viewing sites, including Toyama City
Toyama City’s tourism guide places local firefly viewing typically around mid-June and notes that the best timing varies each year. Use a designated site’s season notice, access instructions and viewing rules to choose an evening.
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June; associated with June 30
Minazuki — the half-year sweet
Kyoto confectionery shops; stock and dates vary by shop
Minazuki is a triangular uiro sweet topped with azuki beans, associated with the June 30 Nagoshi no Harae observance. It is not sold only on that day: Tsuruya Yoshinobu lists its Kyoto main-store season from early June through June 30, with a shorter period at some other shops. Check the particular shop before a special trip.
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2026-06-30
Nagoshi no Harae purification
Participating shrines; Kyoto examples in the linked guide
At the half-year purification observance, some shrines offer chinowa reed rings to walk through. Kyoto City’s guide explains the custom and its connection with minazuki. Shrine schedules and participation arrangements differ; check the shrine’s programme rather than assuming one opening time or admission policy.
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