Japan’s long archipelago produces a wide variety of seasonal fruits and vegetables from north to south. You may have seen the fruit, vegetable, and seafood calendars before. September marks the start of early autumn and the harvest season in Japan. This is the perfect time to enjoy “the season of appetite” with the freshest, most flavorful foods of the year!
September Must-Eat in Japan: Chestnuts
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September is chestnut season in Japan, peaking from early September through late October. Whether roasted warm or made into desserts, chestnuts are a true taste of autumn. Starting in September, you’ll see Mont Blanc cakes, parfaits, and other chestnut-inspired sweets everywhere—no doubt one of Japan’s most iconic fall foods.
September Must-Eat in Japan: Pumpkin
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Pumpkins are harvested in July and August, but after being stored for 2–3 months, they become even sweeter and more flavorful. By autumn, their taste and nutritional value are at their best. That’s why many brands release pumpkin-flavored drinks and seasonal menus around September. If you’re visiting Japan in early fall, be sure to try them!
September Must-Eat in Japan: Potatoes & Sweet Potatoes
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Along with pumpkin, autumn is harvest season for potatoes and sweet potatoes, especially in Hokkaido. Driving past farms, you’ll see many different varieties being harvested, and local farm stands sell them fresh at great prices. Simply boiled or roasted, they’re naturally sweet and flavorful—an autumn treat not to be missed!
September Must-Eat in Japan: Clams
Clams are at their best in spring and autumn, during their spawning seasons. Major producing areas include Tokyo Bay, Ise Bay, Mikawa Bay, the Seto Inland Sea, and Ariake Bay. Whether in miso soup or steamed with sake, clams are delicious and packed with nutrients like iron and vitamin B12.
■ Related article: What seasonal seafood should you eat in Japan? The Seafood Calendar tells you when it’s best
September Must-Eat in Japan: Mackerel
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Mackerel is one of Japan’s favorite fish, found along the coast from Hokkaido down to Kyushu, including Nagasaki, Fukuoka, Shizuoka, and Miyagi. While available year-round, autumn is when mackerel are at their fattiest and most delicious after spawning. Popular dishes include grilled mackerel and nanban-zuke (marinated fried mackerel), staples in Japanese eateries.
Seasonal Foods to Enjoy in Japan This September
These are the must-try seasonal foods of September in Japan. If you’re planning a trip this fall, keep this guide handy and be sure to taste these seasonal specialties—whether fruits, vegetables, or seafood. It’s the perfect way to experience the flavors of Japan’s bountiful autumn harvest!
