Written by
Angus Miyaji
June marks the beginning of early summer and, most significantly, the start of Tsuyu (梅雨), Japan’s rainy season.
The landscape transforms into a deep, electric green, and the misty atmosphere creates a mystical, “Old Japan” vibe that you won’t find during the drier months. It is also the peak blooming season for flowers such as Hydrangeas.
A reliable umbrella, a waterproof jacket, and waterproof shoes are highly recommended. Opt for light, breathable clothing (cotton, linen, quick-dry fabrics) to stay comfortable in the humidity. Evenings or air-conditioned interiors can feel cool, so a light layer is still useful.
While you can pack a high-end raincoat, I recommend doing what the locals do. Pick up a high-quality “70cm clear umbrella” at any 7-Eleven or FamilyMart (convenient store) for about 700–900 JPY (5 to 8 USD) after arriving in Japan. Or pop into a UNIQLO (found anywhere in Japan) and buy a raincoat for around 8-10 USD. Both are great value for money and useful for walking through crowded areas or scenic trails.
June is a “sweet spot” for budget-conscious travelers. There are no national holidays in Japan during June, which means mid-week travel is incredibly quiet. Since many domestic tourists stay home to avoid the rain, you can often find significant discounts on high-end ryokan (traditional inns) .
Despite the possibility of rain, June highlights the vibrant beauty of hydrangeas (Ajisai) and irises (Ayame) in full bloom across the region. Notable suggestions include Ohira Mountain and Mito’s Hydrangea Festival, both set against stunningly lush green landscapes. Additionally, take the opportunity to enjoy waterfalls and excellent rainy-day activities, such as water sports, Sake brewery tours, various museums, relaxing in an onsen, or participating in local craft experiences like Mashiko pottery.
One of our writers, Heather wrote a guide with ‘4 Interesting Rainy Season Activities Nearby Tokyo’, so have a read below if you are interested.
Japan’s Ministry of Transport has officially recognized the “North Kanto Flower Corridor” under its Garden Tourism registration system. This exciting initiative connects 12 beautiful gardens across Tochigi, Gunma, and Ibaraki prefectures, such as Ashikaga Flower Park and Hitachi Seaside Park aiming to boost regional tourism by showcasing their unique floral attractions.