Japan Weather by Month
Japan is an island nation located in East Asia, known for its unique seasons, distinct climates, and beautiful landscapes. From snowy mountains to subtropical beaches, the weather in Japan offers diverse experiences year-round. The country’s four distinct seasons—spring, summer, autumn, and winter—are influenced by its geographical features, which range from tropical islands in the south to temperate climates in the central region and colder, snow-prone areas in the north.
In addition to the distinct seasons, Japan also experiences significant regional weather variations, from humid summers in cities like Tokyo and Osaka to cooler, snowy conditions in the mountains of Hokkaido. Understanding Japan’s monthly weather patterns is key to planning a visit, whether you’re seeking cherry blossoms in spring, summer festivals, the vibrant colors of autumn foliage, or the serene snowfall of winter.
January: Winter at Its Peak
General Overview
January is one of the coldest months in Japan, particularly in the northern regions, where winter is in full swing. Known for its snow, cold winds, and clear skies, January is the peak of winter across much of the country. The Japanese Alps and regions like Hokkaido receive heavy snowfall, making it an ideal time for skiing, snowboarding, and winter festivals. In the southern parts of Japan, such as Okinawa, the weather remains relatively mild, but still, the temperatures drop in comparison to the summer months.
Temperature and Rainfall
In northern Japan, such as in Hokkaido, the temperatures in January can drop to as low as -6°C to -10°C (21°F to 14°F). In the central regions, including Tokyo and Kyoto, the weather is cold but generally not as extreme, with temperatures ranging from 1°C to 10°C (34°F to 50°F). The southern regions, including Okinawa, are milder, with temperatures typically ranging between 15°C to 20°C (59°F to 68°F). January is also one of the driest months, with less rainfall throughout the country. Snowfall is common in areas with higher elevations, particularly in the northern regions, where it can accumulate to significant depths.
Regional Variations
While cities like Tokyo, Osaka, and Kyoto experience relatively dry but cold weather, the northern regions, including Sapporo in Hokkaido, face heavy snowfalls and sub-zero temperatures. In the southern regions, particularly Okinawa, the weather remains quite mild, with cool evenings and warm days. Coastal regions like Osaka and Kobe experience moderate winter temperatures, with occasional rain showers, but snowfall is rare.
February: Continuing Winter Chill
General Overview
February is still part of Japan’s winter season, and it remains cold across most of the country. Snow continues to fall in the northern and mountainous regions, while the southern areas experience milder conditions. However, February sees the days slowly beginning to lengthen, and the overall feeling of winter begins to give way to the approaching spring. This is a great time for winter sports enthusiasts to visit Japan’s ski resorts, especially in regions like Hokkaido and the Japanese Alps.
Temperature and Rainfall
In northern Japan, temperatures remain frigid, often staying below freezing in cities like Sapporo and Asahikawa, with highs ranging from -3°C to -6°C (27°F to 21°F). Central regions, such as Tokyo and Kyoto, see temperatures between 2°C to 10°C (36°F to 50°F), with cold winds making it feel even chillier. The southern areas, including Okinawa, remain mild, with temperatures averaging 16°C to 19°C (61°F to 66°F). February is still a dry month for most regions, with snow continuing to fall in areas like Hokkaido, Niigata, and Nagano, while the southern parts of the country experience occasional light rain.
Regional Variations
The northern regions of Japan, particularly Hokkaido, see the heaviest snowfalls and colder temperatures. In the central and southern parts of Japan, the weather remains cold but more temperate, with Tokyo and Kyoto experiencing chilly conditions but with little snow. Okinawa, located in the far south, remains warm and mild, with temperatures generally ranging between 15°C and 20°C (59°F to 68°F), making it a pleasant escape from the harsher winter conditions.
March: The Transition to Spring
General Overview
March marks the transition from winter to spring in Japan. While the weather remains chilly, especially in the northern and mountainous regions, the southern areas begin to warm up, and the first signs of spring emerge. It’s a time of change, as the country starts to shed its winter chill, and the cherry blossom season begins in southern parts like Kyoto and Tokyo by the end of the month. March is also a good time for travelers who want to enjoy the end of winter while witnessing the first signs of spring.
Temperature and Rainfall
In March, temperatures in northern Japan, such as in Hokkaido, begin to warm slightly, ranging from -2°C to 3°C (28°F to 37°F), with snow still common in the higher altitudes. Central Japan, including Tokyo and Kyoto, experiences temperatures between 5°C to 12°C (41°F to 54°F), and while it’s still cool, there is a noticeable shift toward milder weather. Southern Japan, particularly Okinawa, begins to warm up, with temperatures ranging from 18°C to 22°C (64°F to 72°F). Rainfall is moderate in March, as spring showers become more frequent, particularly in the southern and central regions.
Regional Variations
In northern Japan, particularly Hokkaido, snow still falls, but the weather gradually warms as spring approaches. Central regions like Tokyo and Kyoto experience more temperate conditions, with the first hints of cherry blossoms starting to bloom by the end of the month. The southern regions of Japan, including Okinawa, see milder temperatures, signaling the transition to spring. The weather is generally dry in the north, with rainfall starting to increase in the central and southern parts.
April: Spring Blossoms and Mild Weather
General Overview
April is one of the most beautiful months in Japan, as it is the peak of cherry blossom season. The weather is mild across the country, with the warmer temperatures in the south gradually moving northward. The southern and central regions experience pleasant spring conditions, with cherry blossoms in full bloom by mid-April. This month is one of the best times to visit Japan, as the weather is perfect for outdoor activities and viewing the iconic sakura.
Temperature and Rainfall
In April, the northern regions of Japan, such as Hokkaido, begin to warm up, with temperatures ranging from 1°C to 10°C (34°F to 50°F). The central regions, including Tokyo and Kyoto, enjoy comfortable spring weather, with temperatures ranging from 10°C to 17°C (50°F to 63°F). The southern parts, like Okinawa, see warmer temperatures, ranging from 20°C to 24°C (68°F to 75°F). Rainfall is moderate in April, with occasional spring showers in the central and southern parts of Japan. The north remains relatively dry as the weather warms, and the cherry blossoms are in full bloom in the southern and central regions.
Regional Variations
The northern regions, such as Hokkaido, are cooler, with the cherry blossoms arriving later in the month. Central regions like Tokyo and Kyoto experience mild, pleasant spring conditions, and cherry blossoms are in full bloom, attracting visitors from all over the world. The southern regions of Japan, including Okinawa, see warmer temperatures, and while the cherry blossom season is over, the weather is perfect for outdoor activities like hiking and sightseeing.
May: Warm Spring Days
General Overview
May is one of the best months to visit Japan, as the weather is warm but not too hot. It’s a time when the whole country comes alive with lush greenery, and outdoor festivals and events abound. The southern regions are warmer, and the central regions continue to enjoy pleasant spring conditions. By this time, the cherry blossoms have mostly finished, but other flowers, such as wisteria and azaleas, come into bloom. May is also the start of the Golden Week, one of Japan’s busiest travel periods, with locals and tourists alike enjoying the favorable weather.
Temperature and Rainfall
In May, temperatures in northern Japan, such as in Hokkaido, range from 5°C to 15°C (41°F to 59°F), making it a cool but comfortable time to visit. The central regions, including Tokyo and Kyoto, experience temperatures from 12°C to 21°C (54°F to 70°F), with pleasant days and cool evenings. The southern regions, including Okinawa, have temperatures ranging from 22°C to 26°C (72°F to 79°F). Rainfall is light in May, though the first signs of the rainy season (tsuyu) begin to appear towards the end of the month, particularly in the southern regions.
Regional Variations
The northern regions of Japan, such as Hokkaido, are cool and dry, with beautiful landscapes filled with spring flowers. Central regions, including Tokyo and Kyoto, experience mild temperatures and an abundance of greenery, making this a great time to explore gardens and parks. The southern regions, particularly Okinawa, enjoy warmer conditions, and May marks the beginning of beach season, with warm waters and ideal conditions for outdoor activities.
June: Rainy Season Begins
General Overview
June marks the start of the rainy season (tsuyu) in Japan, particularly in the central and southern regions. The weather becomes humid, with frequent showers and thunderstorms. While the northern regions, including Hokkaido, remain relatively dry, the rest of the country experiences higher rainfall. Despite the rain, temperatures remain warm, and the lush landscapes of Japan become even more vibrant. This is a good time to visit if you’re looking for fewer crowds and a chance to enjoy Japan’s beautiful greenery, though it’s important to prepare for rain.
Temperature and Rainfall
In June, temperatures in northern Japan remain moderate, ranging from 10°C to 17°C (50°F to 63°F), with little rainfall. Central regions like Tokyo and Kyoto see temperatures ranging from 15°C to 22°C (59°F to 72°F), with increased rainfall as the rainy season begins. The southern parts, including Okinawa, experience higher humidity levels and temperatures ranging from 23°C to 28°C (73°F to 82°F). Rainfall increases significantly in June, particularly in the central and southern regions, with monthly totals often exceeding 150mm in many areas.
Regional Variations
The northern regions of Japan, particularly Hokkaido, remain dry and relatively cool, making it an ideal destination for those looking to escape the rain. Central and southern regions, including Tokyo, Kyoto, and Okinawa, experience higher rainfall and increased humidity levels. The rainy season is at its peak, and daily downpours are common in many parts of the country. While the rain may put a damper on outdoor activities, the countryside becomes lush, and Japan’s gardens and parks are filled with vibrant greenery.
July: Hot and Humid Summer
General Overview
July is the height of summer in Japan, and the country experiences hot, humid conditions across much of the country. The rainy season typically ends in early July, giving way to hot, sunny weather in many regions. The central and southern parts of Japan experience some of the highest temperatures of the year, while the northern regions, particularly Hokkaido, remain cooler. This month is ideal for summer festivals, beach trips, and other outdoor activities, though the high humidity levels can make the heat feel more intense.
Temperature and Rainfall
In July, temperatures in northern Japan, including Hokkaido, range from 15°C to 22°C (59°F to 72°F), making it a comfortable time for outdoor activities. Central regions like Tokyo and Kyoto experience temperatures from 25°C to 35°C (77°F to 95°F), with high humidity levels making it feel even hotter. The southern regions, including Okinawa, experience temperatures of 28°C to 33°C (82°F to 91°F), with intense humidity. Rainfall is generally low in July, though thunderstorms are not uncommon.
Regional Variations
In the northern regions of Japan, such as Hokkaido, the weather is warm but much more comfortable than in the central and southern regions. Central and southern Japan, including Tokyo, Osaka, and Okinawa, experience hot and humid conditions, with occasional thunderstorms providing some relief from the intense heat. This is a busy month for festivals, including fireworks displays and traditional summer events.
August: Continued Summer Heat
General Overview
August is another hot and humid month in Japan, and the weather remains sweltering in much of the country. The heat and humidity are at their peak in central and southern Japan, with temperatures soaring into the high 30s°C (high 90s°F). The northern regions remain cooler, providing a respite from the heat. This month is also famous for its Obon festival, a time when families reunite to honor the spirits of their ancestors. Although it’s a great time for festivals, it’s also a month to prepare for intense heat and humidity.
Temperature and Rainfall
In August, temperatures in northern Japan, such as Hokkaido, range from 18°C to 25°C (64°F to 77°F), providing a cooler escape from the heat of the south. Central regions like Tokyo and Kyoto experience highs of 30°C to 38°C (86°F to 100°F), and the humidity makes it feel even hotter. Southern regions like Okinawa experience similar temperatures of 28°C to 33°C (82°F to 91°F), with intense humidity. Rainfall remains low, though occasional thunderstorms may bring short bursts of rain.
Regional Variations
The northern regions of Japan, including Hokkaido, remain cool, with comfortable temperatures and less humidity. In the central and southern regions, such as Tokyo, Osaka, and Okinawa, the weather is hot and humid, making outdoor activities challenging during the day. This is one of the best months for experiencing Japan’s summer festivals and cultural events.
September: Transition to Autumn
General Overview
September marks the transition from summer to autumn in Japan, and the weather gradually becomes cooler, particularly in the northern and central regions. The southern regions, however, remain hot and humid until the end of the month. September is also the peak of typhoon season in Japan, and strong storms can affect coastal and southern areas. While it remains warm in many regions, the intensity of the heat begins to subside, and autumn foliage starts to emerge in the northern and highland areas.
Temperature and Rainfall
In September, northern Japan experiences temperatures between 15°C and 25°C (59°F to 77°F), making it more comfortable for outdoor activities. Central Japan sees temperatures ranging from 22°C to 30°C (72°F to 86°F), with the end of the month bringing cooler conditions. Southern regions like Okinawa remain warm, with temperatures ranging from 26°C to 31°C (79°F to 88°F). Rainfall is significant during this month due to the typhoon season, with strong winds and heavy rains affecting coastal areas.
Regional Variations
Northern Japan, such as Hokkaido, begins to experience cooler conditions, while central regions like Tokyo and Kyoto still experience warm weather but less intense heat. Southern Japan, including Okinawa, remains hot, and the risk of typhoons increases, particularly in the southern and coastal areas.
October: Crisp Autumn Weather
General Overview
October is one of the best months to visit Japan, as the weather is cool and comfortable, and the autumn foliage begins to make its appearance. The northern and central regions experience mild temperatures, with autumn colors starting to emerge in the parks and mountains. Typhoon season usually subsides by this month, making it a great time for outdoor activities and sightseeing.
Temperature and Rainfall
In October, northern Japan experiences temperatures ranging from 10°C to 20°C (50°F to 68°F), with cool, crisp air. Central Japan sees temperatures between 14°C and 22°C (57°F to 72°F), and the weather is generally clear and dry. The southern regions, including Okinawa, remain warm, with temperatures between 24°C and 29°C (75°F to 84°F). Rainfall decreases significantly as the month progresses, though occasional typhoons can still affect the country in the first half of the month.
Regional Variations
The northern regions, including Hokkaido, experience beautiful autumn weather, with cool temperatures and vibrant fall foliage. Central Japan, including cities like Tokyo and Kyoto, enjoys mild temperatures and clear skies, making it a popular time for sightseeing. The southern regions, such as Okinawa, remain warm, but the typhoon risk decreases, making it an ideal time for beach trips.
November: Peak Autumn Colors
General Overview
November is one of the most picturesque months in Japan, as the country’s landscapes are transformed with vibrant autumn colors. The weather is cool and dry, particularly in the northern and central regions, making it a great time for hiking, sightseeing, and enjoying outdoor activities. Autumn foliage peaks during this month, especially in regions like Kyoto and Nikko, where the red and gold leaves create breathtaking views.
Temperature and Rainfall
In November, temperatures in northern Japan, such as Hokkaido, range from 5°C to 10°C (41°F to 50°F), with cool, crisp air. Central Japan sees temperatures between 10°C and 17°C (50°F to 63°F), while southern regions, including Okinawa, experience temperatures from 21°C to 26°C (70°F to 79°F). Rainfall is minimal in most areas, with the dry conditions making it an excellent time for outdoor activities and travel.
Regional Variations
Northern Japan, including Hokkaido, experiences cool temperatures and the peak of autumn foliage, making it ideal for scenic tours and outdoor adventures. Central regions like Tokyo and Kyoto enjoy mild conditions, and the autumn colors are in full swing. Southern Japan remains warmer, but the weather is still pleasant, making it a good time to visit for a more relaxed pace.
December: Winter Approaches
General Overview
December marks the official start of winter in Japan, with colder temperatures in the northern regions and the first signs of snow in areas like Hokkaido and the Japanese Alps. The southern regions remain mild, but the country begins to experience shorter days and colder nights. This is a great month for winter sports in northern Japan and for experiencing winter festivals in cities like Sapporo and Tokyo.
Temperature and Rainfall
In December, temperatures in northern Japan, including Hokkaido, drop significantly, ranging from -5°C to 5°C (23°F to 41°F). Central Japan, including Tokyo and Kyoto, experiences temperatures between 5°C and 12°C (41°F to 54°F), while southern regions like Okinawa remain mild, with temperatures ranging from 18°C to 22°C (64°F to 72°F). Rainfall is low across the country, but the northern regions begin to see snow, particularly in higher altitudes.
Regional Variations
In northern Japan, particularly in Hokkaido, snowfall becomes more frequent, marking the start of ski season. Central Japan sees colder but manageable temperatures, with occasional light snow in areas like the Japanese Alps. The southern regions, including Okinawa, experience mild conditions, and the weather remains relatively warm for beach activities.
