Music Festivals in May [2026]: Outdoor Festivals and Events Summary

This is a music event planned and run by local band members to energize Kagawa Prefecture. Since its start in 2018, it has been held with support from local music lovers, using venues like live houses, shopping arcades, and even rented udon shops. As a free-admission event, it has continued to grow in popularity and attendance. There are also exclusive items available only through crowdfunding, so why not take part and help boost Kagawa’s music scene?

In our “Free Music Festival,” the word “free” embodies three meanings: free of charge, freedom, and freedom from various boundaries. It’s a festival where artists of diverse genres perform, offering enjoyment across generations and opportunities for new discoveries.

The 1000-Person ROCK FES held in Gunma Prefecture is a participatory rock festival! It’s an event where they recruit people to perform together on the day and have a session with 1,000 participants. The sense of freedom of playing outdoors with such a large group must be truly special. It’s the kind of fun event that seems obvious but is surprisingly rare! Each year, set pieces are announced, and anyone who applies can join the performance, so if you’ve ever wanted to play music with a big crowd, be sure to sign up!

GREEN FLASH Fes is held at a resort facility in Fukui Prefecture, set against the backdrop of the sea. A “green flash” is the moment when a green light appears as the sun sinks into the ocean, and legend has it that seeing it brings good luck. With your favorite music as the soundtrack, it’s an event where participants can spend their time freely—lying on the grass while gazing at the vast sky and ocean, or enjoying delicious food. There’s also a fully equipped campground nearby, so how about adding it to your travel plans?