Japan will see a fairly unsettled week as the rainy season settles in across much of the country. According to the latest Japan Meteorological Agency update (June 7, 2026), the rainy season (tsuyu) has now officially begun across regions from Okinawa through Kanto-Koshinetsu, including Tokyo.

Most regions entered the season around their historical averages, although this year's onset is notably later than last year in many areas. As of June 7, the rainy season has been declared for Okinawa, Amami, Kyushu, Shikoku, Chugoku, Kansai, Tokai, and Kanto-Koshinetsu, while Hokuriku and Tohoku have yet to receive official announcements.

Rain and cloudy skies are expected in many areas early in the week, with somewhat brighter conditions developing across northern Japan later on. Temperatures range from pleasantly cool in Hokkaido to warm and humid in Okinawa.

A low-pressure system moving east of the Kuril Islands on June 10 and another near Amami on June 11 will help keep fronts draped across southern Japan. As a result, Eastern and Western Japan can expect plenty of cloudy or rainy weather through June 14, while Okinawa and Amami may see periods of heavy rain, especially around June 10–11. Currently, no typhoons are being tracked that are expected to affect Japan.

No typhoons are currently expected to affect Japan.

Japan's typhoon season runs from May through October, with most activity from July to September. During a typhoon, transit delays and cancellations can be expected. Be sure to stay updated on the latest weather and flight information. For real-time updates on railways and airports, visit LIVE JAPAN's transport information page.

June brings the start of early summer and Japan’s rainy season, known as tsuyu. Frequent showers blanket the country in fresh greenery, while hydrangeas and irises burst into vibrant shades of blue, purple, and pink. Temple gardens in Kamakura, Kyoto, and Tokyo are especially beautiful at this time of year.

Prefer to stay dry? June is also ideal for exploring museums, shopping arcades, and cozy cafes. Meanwhile, Hokkaido enjoys sunny skies and pleasant weather, making it perfect for outdoor adventures.

Seasonal treats include sweet melons, matcha desserts, and grilled ayu (sweetfish). Toward the end of the month, fireflies begin lighting up riversides and gardens, adding a touch of magic to Japan’s early summer evenings.

Tokyo is settling into a classic rainy-season pattern, with mostly cloudy skies and occasional showers throughout the week. Temperatures remain quite steady, with overnight lows around 18-19°C and daytime highs reaching 24-26°C. Despite the lack of sunshine, conditions will feel mild rather than cool, though humidity will be noticeable.

Sapporo starts the week with cloudy skies and periods of rain before gradually transitioning to brighter weather later in the week. Rain chances decrease steadily toward the weekend, and temperatures rise noticeably, with daytime highs climbing from the mid-teens into the mid-20s while nights remain cool at 10-14°C.

Sendai begins with a few damp days before shifting into more typical early-summer weather, featuring a mix of clouds and sunshine. Highs will reach the mid-20s, while mornings can feel quite cool, with lows dropping to around 13°C. Most of the week after the initial rain looks dry and pleasant.

Osaka will see cloudy skies and occasional showers at the start of the week, followed by longer stretches of dry weather and some sunshine. Temperatures gradually rise through the week, with highs moving from the mid-20s into the upper 20s and lows holding steady around 19-20°C.

Fukuoka begins the week under cloudy, occasionally rainy skies before improving to a mix of sunshine and clouds for much of the remainder of the week. Daytime temperatures stay comfortably warm at 26-28°C, while nights remain mild at 19-21°C.

Naha remains firmly in rainy-season mode, with cloudy skies and frequent showers expected throughout the week. Rain may become more persistent at times, and the combination of warm temperatures and high humidity will make conditions feel distinctly tropical.

The forecast was AI-generated and then human-edited. Source for forecast and images: Japan Meteorological Agency website (www.jma.go.jp)

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