Choosing Where to Go in Japan by Season
Japan runs 3,000 kilometres from sub-arctic Hokkaido to subtropical Okinawa, so on the same day Sapporo can be under snow while Naha is swimming. Add the sharp contrast between the Sea of Japan side and the Pacific side, the June rains and the typhoons of summer and autumn, and the same month can deliver opposite experiences in different places. This guide recommends destinations month by month, explains the weather logic behind each season, and says what to look for on this site’s Japan temperature ranking. Temperatures are long-run typical values; check the seven-day forecast before you travel.
1. Three geographic lines that explain Japan’s weather
The first is latitude: Hokkaido to Okinawa spans twenty degrees, so in January Sapporo sits at −1°C by day and Naha at 19°C, and in July Sapporo at 26°C and Naha at 32°C. The second is the divide between the Sea of Japan and the Pacific, the mountain spine of central Honshu: in winter, Siberian air picks up moisture over the Sea of Japan and dumps world-class snowfall on Niigata, Kanazawa and Toyama, then crosses the mountains as dry, clear cold, which is why Tokyo and Osaka have sunny, low-rain winters. The third is the northward march of the rains and typhoons: the plum rains reach Okinawa in early May, Kyushu and Honshu in early June, and end in mid-July, while Hokkaido has almost no rainy season; typhoons affect Okinawa and Kyushu first from July and sweep north-east across Honshu through October. Understand these three lines and you understand why “when is the best time to visit Japan” has no answer without “where”.
2. January–February: snow country and the warm islands
These are Japan’s coldest months and the golden season for snow travel. Sapporo, Otaru and Asahikawa sit at −2 to −5°C by day under deep snow, the Sapporo Snow Festival in early February is the year’s biggest event, and Niseko and Rusutsu powder is most reliable in January and February. Shirakawa-go, Kanazawa and Niigata on the Sea of Japan side offer equally fine snowscapes, and the Nagano and Niigata ski resorts have their best conditions. On the Pacific side Tokyo, Kyoto and Osaka see 8–12°C with plenty of sun and dry air — low season, cheaper and quieter, and Kyoto’s temples have a particular winter mood — but mornings and evenings approach freezing and need a heavy coat. The only escape from the cold is Okinawa: Naha at 18–20°C by day, with cherry blossom from late January, the earliest in Japan. Southern Kyushu’s Kagoshima and Miyazaki hover around 12°C, good hot-spring weather.
3. March–April: the cherry front moves north
Cherry blossom is Japan’s biggest seasonal theme, and its order of bloom is the order of warming: Okinawa in late January; Kyushu, Shikoku, Tokyo and Nagoya in late March; Kyoto, Osaka and Kanazawa around the turn of April; Sendai and Hirosaki in Tohoku in mid-April; Hakodate and Sapporo in Hokkaido from late April into early May. Peak bloom lasts about a week in any one place and shifts by up to two weeks from year to year, so check the bloom forecasts before departure. March weather on Honshu is fickle: Tokyo sees 12–16°C but a cold front can push highs back into single digits, so carry a layer you can shed. April is among Honshu’s most comfortable months, with Tokyo and Kyoto at 17–21°C, little rain and much sun, the best time for city walking. Hokkaido is still cool at 8–13°C in Sapporo. Golden Week begins at month’s end and transport and rooms fill fast; book early.
4. May: the clear window after Golden Week
Once Golden Week ends in the first week of May, Honshu enters its most settled weather of the year: Tokyo and Osaka at 22–26°C, low humidity, frequent sunshine, all the way until the rains begin in early June. Hokkaido gets its spring in May — Sapporo’s cherry and moss-phlox and Furano’s tulips in the first half, highs of 15–20°C — and it is a fine time to see the island without crowds. Okinawa enters its rainy season in early May with more overcast, humid days, so May is not the month for it, and southern Kyushu turns wet late in the month. Mid to late May is Honshu’s last clear window before the rains and offers the best value of the year.
5. June to mid-July: the rains, except in Hokkaido
From early June the rainy season advances from Kyushu to Kansai and Kanto, and Tokyo, Nagoya and Osaka settle into long overcast, humid spells at 24–28°C. Hydrangeas bloom in Kyoto and Kamakura, a sight peculiar to the season and still worthwhile if you can accept the rain. Hokkaido has no rainy season: Sapporo in June enjoys 20–24°C, frequent sun and low humidity, the most comfortable place in the country, and Furano’s lavender begins to colour at month’s end and peaks in mid-July. Okinawa’s rains end in late June and full summer heat follows at once, so July opens its beach season. The answer for June is therefore simple: go to Hokkaido.
6. Late July–August: heat, festivals and typhoons
As soon as the rains end, Honshu turns hot and humid: Tokyo and Osaka at 31–35°C by day and above 26°C at night, the Kyoto basin worst of all. But this is festival season — the Gion Matsuri and the Sumida River fireworks in July, Aomori’s Nebuta, Tokushima’s Awa Odori and Obon in August. If the festivals are the point, accept the heat and confine daytime activity to indoors and the edges of the day. For relief go to Hokkaido (Sapporo at 24–28°C, Kushiro and Nemuro cooler still under sea fog) or to the highlands of Tohoku and Nagano. Typhoon season opens in July and is active in August, with the Okinawa, Kyushu and Shikoku coasts liable to be hit at short notice, so keep slack in the schedule. The Obon holiday in mid-August is the most crowded travel week of the year; avoid it if you can.
7. September–October: lingering heat, typhoon peak, first colour
Early September is still the tail of summer on Honshu, with Tokyo and Osaka near 30°C, and it cools clearly from the last ten days. September is the month with the most typhoon landfalls and the autumn rain front brings long wet spells, so Kanto, Tokai and Kyushu itineraries need flexibility. Hokkaido turns to autumn first, with Sapporo at 20–24°C and the Daisetsuzan mountains colouring from mid-September, the earliest foliage in Japan. October is one of Japan’s most comfortable months: typhoons are largely over, Tokyo, Kyoto and Osaka sit at 20–24°C with low humidity and much sun; Hokkaido’s colour peaks in the first half of the month, Tohoku’s in the second, and the highlands of Honshu such as Nikko and Kamikochi colour in the second half. The Sports Day long weekend in mid-October and Silver Week in late September are peak domestic travel times with tight accommodation.
8. November–December: foliage season and first snow
In November the foliage front reaches Honshu’s cities: Tokyo in the second half, Kyoto from late November into early December, with days of 13–18°C, nights of 5–8°C and cold temple mornings. Skies are mostly clear and dry in one of the least rainy stretches of the year, and Kyoto is at its most crowded, so an early start is the only remedy. Hokkaido enters early winter in November with steady snow cover in Sapporo from mid-month. In December Hokkaido and Tohoku settle into full winter and the ski resorts open through the second half; Tokyo and Osaka are mostly sunny at 10–13°C, with winter illuminations as the month’s signature. The year-end holidays begin around 29 December and transport fills quickly, so book ahead.
9. By destination: when to go where
Hokkaido: June to September for cool air and flower fields, late December to February for snow, May for uncrowded blossom. Tokyo: April, mid to late May, October and November are best; avoid mid-June to mid-September. Kyoto: late November foliage and early April blossom are the most beautiful and the most crowded; May and October are comfortable and relatively relaxed; avoid the heat of July and August. Osaka and Kobe: in step with Kyoto but more tolerant of weather, with plenty indoors. Okinawa: November to March is most comfortable, July to September is beach season with typhoons, May to June is the rainy season to avoid. Kyushu: March to May and October to November, with the hot-spring towns fine in winter too; avoid the typhoons and heat of July to September. Kanazawa, Shirakawa-go and the Sea of Japan side: best in April–May and October–November; January–February for snow scenes, but be prepared for disrupted transport.
10. Reading Japan’s weather on this site
The Japan temperature ranking puts the Japan Meteorological Agency’s forecasts for ten regions and 48 representative locations on one map, with date buttons that step through the next seven days; region pages show each location’s seven-day forecast and chance of rain — a useful extra that the Chinese forecasts lack — and a day with a 50% or higher chance of rain should simply be planned as wet. Location pages carry the clothing, UV and exercise indices and a travel guide. Japan’s holiday specials go live a month before each long weekend and address typhoon and snow risk explicitly. All of it is compiled from the agency’s public forecasts and is not an official warning.