Sapporo Weather in September

Season: Transitional time from summer to autumn

Key Points:
1. Sapporo’s temperature in September is gradually dropping, marking the transition from summer to autumn.
2. Sapporo sees considerable rainfall in September, making rain gear important.
3. Sapporo Autumn Fest at Odori Park is a must-visit event, offering diverse food.

Diverse Food Stalls

Unstable and Overall Dropping Temperatures

Overall, Sapporo’s weather in September is highly variable, seeing great temperature swings between day and night, with average lows of 15°C (59°F) and average highs of 23°C (73°F). Urban areas tend to be slightly warmer than mountain areas. Besides, as the month proceeds, the temperature gradually drops.

In the first half of the month, Sapporo’s climate still continues its summer heat, with average temperatures ranging from 16-24°C (61-75°F). The actual weather can be hotter than you imagine due to global warming. Sometimes, on sunny days, the highest temperature can even reach 30 degrees Celsius (86 degrees Fahrenheit). Therefore, avoid prolonged outdoor activities during midday heat. Luckily, after the sunset, the weather cools down, dripping to around 23 degrees Celsius (73 degrees Fahrenheit) or lower.

By mid to late September, Sapporo sees a significant drop in temperatures. The average temperature shifts to 9-19°C (48-66°F), with highest temperatures of about 17-23°C (63-73°F) in the daytime. But if you encounter the rainy weather, consider wearing a trench coat as it gets a little bit chill.

On the whole, the weather of Sapporo in September is comfortable and lovely, suitable for all kinds of sightseeing activities. Trees in the city parks like Nakajima Park remain green and lush, offering vibrant natural views.

Lush Greenery

Considerable Rainfall

Rain in Sapporo comes still frequently during September, with average precipitation reaching 128 mm from over 11 days. Showers are the most common type of rainfall, limitedly affecting your travel plans. Plus, after the rain, the skies often clear up beautifully, with crisp air that's ideal for outdoor activities like visiting Maruyama Park, where you can combine animal viewing with light hiking.

One thing you need to keep in mind is that rain can cause the perceived temperature to drop by 5-10 degrees Celsius (41-50 degrees Fahrenheit), so it’s important to add layers accordingly.

Light Hiking in the Park

High Humidity Level

Sapporo Clock Tower

Due to the warm and rainy weather, Sapporo in September experiences a relatively high humidity level: around 71 %.

Sunshine Hours & Daytime Hours

Sunshine Hours: about 6 hours
Sunrise: 4:58-5:30
Sunset: 17:18-18:09
Daytime Hours: 11 hours 48 minutes - 13 hours 11 minutes

In September, the daylight hours gradually becomes shorter, so it’s best to arrange your travel itinerary wisely to make the most of your time. For example, if you intend to explore the surrounding suburban areas, be sure to start your journey early to ensure that you can return to downtown before it gets dark.

Because of high UV Index and considerable sunshine hours, sun protection is significant. Don’t forget to apply sunscreen.

Is September a Good Time to Visit Sapporo?

Yes, September is a great time to visit Sapporo. While the weather is a bit changeable, it’s suitable for outdoor explorations overall, providing visitors check the weather forecast first. Secondly, September in Sapporo can be considered as a shoulder season, witnessing fewer tourists and lower travel costs. Besides, there is a dramatic event in September: Sapporo Autumn Fest at Odori Park, where visitors can taste the snacks and local specialties from all over Hokkaido.

Crab Legs

Things You Need to Pack in September

Tops: In early September, T-shirts coupled with a light long-sleeve shirts or blouses are usually enough for daytime. As the month progresses and temperatures drop, a hoodie layered with a light jacket can be a good choice for your visit.

Bottoms: Long pants like jeans and sweat pants are ideal throughout the month. If you’re visiting in early September and the weather is sunny, mid-length skirts or shorts are also fine.

Shoes: A pair of comfortable sneakers or walking shoes is your best bet, especially for exploring city attractions or parks. If you plan to hike or visit mountainous areas, like Mount Moiwa or nearby nature spots, opt for anti-slippery hiking shoes.

Accessories:
A light scarf can be useful for cooler mornings or windy days, and it’s a useful prop for taking beautiful photos.
Don’t forget to pack an umbrella, or a rain coat.

Travel Highlight in September: Sapporo Autumn Fest

As Hokkaido’s largest gourmet festival, Sapporo Autumn Fest, held from September 6 to October 4, is a paradise for food lovers. It gathers food from all across Hokkaido, featuring everything from fresh crab and other seafood to Japanese ramen.

The event takes place in Odori Park, where you can stroll through stalls while tasting the seasonal flavors. No worries about the variable weather: covered outdoor dining areas are set, so you can enjoy your meal regardless of it’s rainy or shiny.

More Things to Do in Sapporo in September

Sapporo City Skyline

Whether you’re into light hiking or relaxing walks, Sapporo in September offers a pleasant climate and a perfect blend of city charm and natural beauty. Here are some recommended destinations:

City Sightseeing:
Sapporo Clock Tower: An iconic symbol of the city’s history, and a good spot to take photos.
Shiroi Koibito Park: A chocolate-themed wonderland for photography and making sweets in person.
JR Tower Observation Deck T38: A lovely place to overlook the whole city, near the city center.

Light Hiking:
Mt. Moiwa: Take the ropeway and enjoy panoramic views of Sapporo's transitional season colors
Hitsujigaoka Observation Hill: Admire the view of lamb eating on vast grasslands.
Jozankei Farm: Go fishing and enjoy the peaceful scene.

Travel Tips

1. Considering the unstable weather in September, it’s helpful to check the forecast in advance during your trip.
2. Try to start your journey early on weekends as there might be crowds during peak visiting period.