As Hokkaido's autumn arrives earlier than in other parts of Japan, September brings cooler temperatures averaging around 18°C (64°F), a pleasant shift from the summer warmth. This month is often considered a shoulder season for visiting Hokkaido, as summer vacations have ended and the risk of typhoons increases.
However, this also means fewer crowds and lower prices, making it a great time to explore. Just be sure to keep an eye on typhoon forecasts to plan your trip accordingly and avoid potential disruptions.
Hokkaido's Weather and Climate in September
- Average Temperature: 18°C (64°F)
- Daytime Highs: 22°C (72°F)
- Nighttime Lows: 14°C (57°F)
- Rainfall: 171mm/ 6.73″
In September, Hokkaido starts to feel like autumn. The weather is cool, with temperatures going from 19°C (66°F) at the beginning of the month to 13°C (55°F) by the end. Leaves start turning yellow from mid-September, and the best fall colors happen from late September to mid-October.
The temperature difference between day and night becomes larger, so pack a coat or windbreaker with you, especially if you're visiting high-altitude areas. September is also the rainiest month in Hokkaido (171mm) and coincides with Japan's typhoon season, which could potentially disrupt flights and travel plans. Staying updated on typhoon forecasts and allowing flexibility in your itinerary is highly recommended.
Despite these considerations, September offers fewer crowds and more affordable travel costs, making it an ideal time for budget travelers to enjoy the early autumn scenery and the serene beauty of Hokkaido.
Is It Rainy in Hokkaido in September?
Yes, it can be rainy in Hokkaido in September.
While Hokkaido doesn't have a specific rainy season like other parts of Japan, September is its wettest month, with about 171mm of rainfall. The rain usually comes in short, heavy showers, and about half of the month is still sunny.
These showers are unlikely to ruin your trip, especially if you bring waterproof gear like umbrellas, raincoats, and waterproof shoes. With a well-planned itinerary, September is still a wonderful time to enjoy Hokkaido's cool weather and the early beauty of autumn.
Where to Go in September in Hokkaido
1. Sapporo
- Suggested Stay Duration: 2–3 days
In September, Sapporo enjoys mild weather with temperatures ranging from 12–22°C (54–72°F). While occasional rain showers may occur, popular attractions like the Tanukikoji Shopping Arcade, Sapporo Beer Museum, and Sapporo Clock Tower remain easily accessible.
If you are looking for a taste of local culture, don't miss the Sapporo Autumn Fest at Odori Park (September 12th – October 4th, 2025). This event is a big food festival where you could sample regional specialties like fresh seafood, savory soups, and dairy-rich desserts.
2. Hakodate
- Suggested Stay Duration: 2 days
September's crisp, cool weather makes Hakodate a perfect destination for exploration.
Begin your day early at the Hakodate Morning Market, where you could find fresh seafood and seasonal delicacies like sea urchin and crab. Next, immerse yourself in the city's history by riding the Hakodate City Tram, which connects key landmarks such as the red-brick warehouses and historic churches.
For an unforgettable highlight, take the Mount Hakodate Ropeway at sunset to witness the city transform into an ocean of lights after dark. Remember to take a light jacket with you for the cooler mountain evenings.
3. Daisetsuzan National Park
- Suggested Stay Duration: 1–2 days
Due to the mountainous landscape and higher altitude, autumn usually arrives early in Daisetsuzan National Park. The fall colors start appearing in mid-September, making it a great time for hikers and photographers.
Besides taking the ropeway to marvel at Mt.Asahidake, you could explore trails leading to Ginga no Taki (Milky Way Falls) and Ryusei no Taki (Shooting Star Falls), where flowing waters contrast with fiery autumn leaves. After hiking, relieve yourself at Sounkyo Onsen village, and soak in hot springs surrounded by forested cliffs.
4. Shiretoko Peninsula
- Suggested Stay Duration: 2 days
In September, Shiretoko Peninsula is a hiker's paradise with cool weather.
Begin your journey at the Shiretoko Five Lakes, strolling along serene trails encircled by ancient forests and mirrored waters. Then, venture to Cape Puyuni to witness dramatic cliffs meeting the wild Pacific coastline. Appreciate the stunning sunset at Sunset Terrace to end your day, where the horizon blazes in orange-red hues as the sun dips between sea and sky. If you're lucky, you might spot some sea eagles or whales from there.
Top Things to Do in September in Hokkaido
1. Enjoy Early Autumn Charm
Japan's earliest fall colors appear from mid-September in Daisetsuzan National Park. Leaves slowly turn bright red and yellow, making the mountains look like a painting. The weather is cool and nice for hiking, but it could change fast. Sudden showers could cause temperatures to drop to around 5°C(41°F).
To fully enjoy your adventure, bring a raincoat and warm clothes like sweaters and jackets to stay cozy. Whether you want to hike through the colorful trails or just sit and enjoy the quiet view, exploring Daisetsuzan in autumn is an unforgettable experience.
2. Attend to Vibrant Festivals
Normally Sapporo is your first stop in Hokkaido. If you arrive after September 12th, don't miss the Sapporo Autumn Fest.
This festival happens in Odori Park and showcases Hokkaido's bounty: fresh crab, autumn salmon, lamb BBQ (Genghis Khan), and seasonal produce like sweet corn and pumpkins. You would definitely have a good time trying new foods, listening to live music, and dancing.
3. Soak in the Hot Spring with Autumn Views
Besides visiting Noboribetsu Onsen for its famous mineral-rich hot springs, another great option is Sounkyo Onsen in Sounkyo Gorge, located in Daisetsuzan National Park.
If you're planning a day trip, many traditional Japanese inns(ryokans) offer daytime baths for a fee of around 1,000 yen(around 7 USD). However, it's highly recommended to stay overnight for a more relaxing experience. After hiking past waterfalls and forests, imagine soaking in a steamy bath while golden leaves float by. It's the perfect way to end an adventurous day!
4. Explore the Coast and Its Fresh Seafood
The Shiretoko Peninsula is known for its stunning coastal views and wild beaches, but it's quite remote, especially if your travel time is limited.
Consider visiting the Shakotan Peninsula instead just two hours from Sapporo, which is famous for its turquoise waters and cliffs. After exploring Cape Kamui, make sure to try some autumn flavors in Shakotan town, like uni donburi (sea urchin rice bowls).
For an extra treat, you could stay overnight in Otaru to enjoy fresh local sushi and autumn salmon. Then take a leisurely stroll along the historic canal and enjoy the cool evening breeze.
Crowds and Costs in September in Hokkaido
September is one of the best times to visit Hokkaido for those who are seeking a balance between good weather, fewer crowds, and reasonable costs.
September is less crowded than summer (July–August) and peak autumn foliage season (October). Schools in Japan reopen in September, reducing domestic tourism. Crowds increase slightly as foliage begins in mountainous areas like Daisetsuzan National Park, but it's still quieter than in October.
Prices in September are also lower than in summer or October, especially in cities like Sapporo. Book three months in advance to budget your itinerary with flights, popular onsen ryokan, or hotels near national parks that offer a free cancellation policy.
What to Pack and Wear in September in Hokkaido
Hokkaido's September weather shifts quickly and the temperature difference between day and night could be huge. Coastal areas are milder, while inland/high-altitude spots get colder.
Dress in light layers like long-sleeve shirts, sweaters, and light coats or jackets. Bring your waterproof hiking boots with you if you are planning to trek in national parks where trails may be unpaved and damp. Besides suncream and sunglasses for sunny days and high UV levels, you also need to prepare for sudden heavy showers with a compact umbrella or waterproof jacket.
FAQs About Trip to Hokkaido in September
How's Hokkaido Weather in September Like? Compared to October weather.
Hokkaido in September has mild temperatures (12-22°C/54-72°F) with occasional showers, great for planning a budget trip for outdoor activities. By October, temperatures drop to around 10–15°C (50–59°F) with frost at night, drawing crowds for vibrant peak foliage or even early snow in mountainous areas.
All in all, if your travel time is flexible, choose September for saving budgets and outdoor adventures, and October for peak fall scenery.
Can I See Early Snow in September in Hokkaido?
While early snow in September is uncommon in most of Hokkaido, high-altitude areas like Daisetsuzan National Park occasionally see light snow or frost in late September. Lower elevations and cities like Sapporo or Hakodate remain frost-free until October.
For reliable snow sightings, October is a safer bet.
What Should I Expect for A Hokkaido Autumn Trip?
Hokkaido's autumn is comprised of September and October, offering stunning foliage colors and the earliest snow in Japan.
From mid-September to early October, you could head to Daisetsuzan National Park for the earliest foliage and Sounkyo Onsen in Sounkyo Gorge. While from mid-October to the end of the month, autumn colors gradually spread all over Hokkaido. You could choose your preferred spots for a foliage view, such as Blue Pond in Biei, and Noboribetsu Onsen near Shikotsu-Toya National Park.
Let Us Help You Plan Your 2025/2026 Japan Trip
Are you expecting to travel to Japan in 2025/2026? See below for some of our most popular Japan tour itineraries that include Hokkaido:
- 8-Day Hokkaido Summer Vacation
- 9-Day Best of Japan's Winter
- 14-Day Japan Highlights and Skiing in Hokkaido
Contact us and we'll help you to plan your Japan itinerary based on your preferences.
Get Inspired with Some Popular Itineraries
At Japan Highlights, we create your kind of journey — your dates, your destinations, at your pace. You can have any trip tailor made for your travel.