About Koyomi Japan
Koyomi Japan (koyomijapan.com) is a structured, English-language guide to Japan's seasonal travel events, built for international visitors planning a trip around Japan's seasons.
What this site does
Rather than editorial "top 10" listicles, Koyomi Japan maintains a growing database of individual event pages — fireworks festivals, autumn foliage spots, and eventually cherry blossoms and illuminations — each with exact dates, venue details, access directions, admission info, and practical viewing tips. Dates and details are collected from official municipal and tourism-association sources and re-checked on a regular schedule, with a visible "last verified" timestamp on every page.
The site also runs a Trip Date Matcher, which lets travelers enter their travel dates and see every event happening nearby during their trip.
Who runs it
Koyomi Japan is built and run independently by a single operator based in Japan. It is not affiliated with any tourism board, municipality, or event organizer. Event data is compiled from public, official sources; where the site links out to hotels, tours, or travel products, some of those links are affiliate links (see our Affiliate Disclosure for details).
Accuracy
Event dates in Japan — especially for outdoor festivals — can change due to weather, safety concerns, or organizer decisions. We check listed dates against official sources on a regular basis, but we always recommend confirming directly with the official event site before finalizing travel plans. Links to official sources are provided on every event page.
Contact
For corrections, partnership inquiries, or general questions, email hello@koyomijapan.com.