Japan in April: Weather, Crowds & What to Expect
Climate Map for April
Average temperature across Japan in April.
City Weather in April
| City | High | Low | Rain | UV | Feels |
|---|---|---|---|---|---|
| Yokohama | 18° | 10° | 140 mm | high | Cool |
| Nagoya | 20° | 9° | 191 mm | high | Cool |
| Sapporo | 11° | 2° | 73 mm | moderate | Cold |
| Fukuoka | 19° | 10° | 137 mm | high | Cool |
| Kawasaki | 19° | 10° | 135 mm | high | Cool |
| Kobe | 19° | 10° | 132 mm | high | Cool |
| Saitama | 19° | 9° | 108 mm | high | Cool |
High / low are average daily temperatures (°C). “Feels” reflects how hot or cold it feels, allowing for humidity.
Hokkaido (Sapporo, Niseko, Furano, Asahikawa)
April’s daylight grows quickly and the plains shrug off snow; cherry blossoms open late in southern Hokkaido (Hakodate to early May). Mountain trails can be sloppy or still snowbound, so high-elevation hiking is premature; Niseko facilities may begin to close by month’s end. Expect cool evenings-bring a warm jacket-and quieter train and ferry services compared with Honshu’s spring rush.
Tohoku & the Sea-of-Japan Coast (Aomori, Akita, Sendai, Niigata, Kanazawa)
April is when Tohoku’s cherry blossom season unfolds later than Tokyo-expect blooms in Sendai and Aomori late April to early May. Mountain snows persist, so alpine trails remain wet or icy and the Yamase occasional cool easterly can keep temperatures lower than expected. Golden Week drives bring crowds, so reserve trains and lodgings early if visiting for hanami.
Tokyo & the Kanto Plain (Tokyo, Yokohama, Kamakura, Mt. Fuji approaches)
April is cherry-blossom peak for most of Tokyo and surrounding towns: parks brim with picnickers and restaurants run sakura menus. The weather is mild and humid days are rare; it’s one of the most popular travel windows, so accommodation and cultural attractions fill up. Bring a lightweight jacket for cooler evenings under open-air spring festivals.
Central Alps & Japanese Alps (Nagano, Matsumoto, Takayama, Kamikochi, Mt. Fuji approaches)
April sees large snowmelt on valley floors and closed high trails; lowland cherry blossoms in Nagano Prefecture occur later than central Honshu. Road access to remote alpine areas is often limited and many mountain huts remain closed. This is a shoulder month for sightseeing-bring waterproof boots and check road re-openings if planning hikes.
Kansai & the Seto Inland Sea (Kyoto, Osaka, Nara, Hiroshima, Okayama, Takamatsu)
April is peak hanami season in Kyoto and Osaka-parks fill with celebrants and travel crowds swell, especially on weekends. Weather is pleasant and ideal for temple gardens and river walks, so book restaurants and trains early. Expect clear days interleaved with sudden showers, so bring a compact umbrella for unpredictable spring rain.
Kyushu & Okinawa (Fukuoka, Nagasaki, Kumamoto, Kagoshima, Yakushima, Okinawa main and outlying islands)
April is very pleasant across Kyushu with flowering magnolias and mild evenings-perfect for castle towns and hot-spring visits in Beppu and Kurokawa. Okinawa is warmer and greener; early marine-season bookings can be good value compared to summer. Golden Week in late April-early May will swell domestic travel, so book ahead if visiting during that window.