Weather in Sapporo by Month: What to Expect

Саппоро experiences distinct seasons, each offering a different side of the city. Winters are cold and snowy, transforming Саппоро into a winter wonderland, while summers bring warmth and humidity. Spring and autumn provide mild, comfortable weather, making them ideal for exploring the city’s parks and outdoor attractions.

In Саппоро, January and February are the coldest months, with temperatures often dropping below freezing. By March, the weather begins to soften, though snow can linger. April and May see a rapid shift to spring, with blooming cherry blossoms and pleasant temperatures. The summer months, June through August, are warm but can be rainy, especially in August. Autumn arrives in September, bringing cooler air and vibrant foliage, while December marks the return of winter’s chill.

Winter in Саппоро is long and cold, with average temperatures in January hovering around -3.1 °C. Nighttime lows can dip to -5.6 °C, while daytime highs rarely rise above freezing. By March, temperatures begin to climb, reaching an average of +2.6 °C, though mornings and evenings remain chilly.

Spring in Саппоро is brief but pleasant. April brings average temperatures of +8.4 °C, with highs reaching +12.7 °C by the end of the month. May is significantly warmer, averaging +14.3 °C, making it one of the most comfortable months for outdoor activities. Summer arrives in June, with temperatures rising to +17.9 °C, and peaks in August at +23.2 °C, though humidity can make it feel warmer.

Autumn in Саппоро is cool and crisp. September averages +19.4 °C, but temperatures drop quickly in October to +12.5 °C. By November, the city cools further to +5.5 °C, and December sees a return to winter, with averages around -1.3 °C. The seasonal shifts in Саппоро are sharp, so packing layers is essential for comfort.

Саппоро receives steady precipitation throughout the year, though the type and intensity vary by season. Winter months, December through February, bring heavy snowfall, with January averaging 77.9 mm of precipitation, mostly as snow. Spring is drier, with April and May seeing around 65.9 mm and 59.8 mm of rain, respectively.

Summer in Саппоро is the wettest season, particularly in August, when rainfall peaks at 175.4 mm. June and July are also rainy, with 109.2 mm and 83.8 mm of precipitation, respectively. Autumn sees moderate rainfall, with September and October each receiving around 110 mm. The snow returns in November, though it’s lighter than in the heart of winter.

If you’re visiting Саппоро in August, be prepared for frequent rain showers, while winter travelers should expect snow. Spring and autumn offer a mix of dry and wet days, so a compact umbrella or waterproof layer is a good idea year-round.

For a winter trip to Саппоро, pack warm, insulated clothing to handle temperatures as low as -5.6 °C. A heavy coat, waterproof boots, gloves, and a hat are essential, especially if you plan to explore the city’s snow festivals or nearby ski resorts. Layering is key, as indoor spaces are well-heated.

Spring and autumn in Саппоро require versatile layers. In April and May, a light jacket or sweater is sufficient for daytime, but evenings can still be cool. September and October call for a mix of short-sleeve shirts and long-sleeve layers, as temperatures fluctuate between +12.5 °C and +19.4 °C. A light rain jacket is useful for occasional showers.

Summer in Саппоро is warm and humid, so lightweight, breathable clothing is ideal. Pack short-sleeve shirts, shorts, and comfortable walking shoes for exploring the city. Don’t forget a compact umbrella or raincoat for August, when rainfall is at its peak. Sunglasses and sunscreen are also recommended, as sunny days can be bright despite the humidity.