Japan's Four Seasons Explained

Understand Japan's four seasons, from cherry blossoms and the rainy season to autumn color and snow country, plus the poetic 72 microseasons.

Published October 15, 2026 at 10:28 PM JST | By Tokyo Paul

Quick answer: Japan has four distinct seasons: cherry blossoms in spring, festivals and fireworks in summer, bright leaves in autumn, and snow and hot springs in winter. The rainy season runs mid-June to mid-July in most regions, and a traditional calendar adds 72 poetic microseasons.

Japan is a long, mountainous island nation, and its seasons shape almost everything: festivals, food, clothing, gardens, and the best time for a trip. Each season has its own look, its own flavors, and its own rhythm, and the changes are celebrated with real enthusiasm. This guide explains what each season is like, how the rainy season and typhoon months fit in, how climate varies from Hokkaido to Okinawa, and how Japan's traditional calendar divides the year into 72 tiny microseasons.

The Traditional Calendar Versus the Weather

Japan recognizes the same four seasons as many other countries: spring (haru), summer (natsu), autumn (aki), and winter (fuyu). The traditional calendar, however, starts them earlier than Western ones. Instead of beginning at an equinox or solstice, the traditional seasons begin roughly six to seven weeks sooner. Spring in the old calendar starts in early February, and winter begins in early November.

This can sound surprising on a cold February day, but it reflects a way of noticing early signs. People look for the first hints of change, such as the first plum blossoms or the first cool breeze, and they enjoy the turning of the year as it unfolds. Today, most people follow the familiar months for weather, while the traditional calendar adds a poetic layer that you will often see in greetings, seasonal sweets, and festival names.

Spring and the Rainy Season

Spring is the season most visitors dream about because of cherry blossoms. In many parts of the country, the blossoms usually appear between late March and April, and they sweep from south to north as the weather warms. Families and friends gather in parks for hanami, or flower viewing, and the mood is cheerful and relaxed. Other spring highlights include plum blossoms, azaleas, and fresh green leaves.

After spring comes tsuyu, the rainy season. In Honshu, Shikoku, and Kyushu it usually runs from mid-June to mid-July. Hokkaido is the notable exception, because the seasonal rain front fades before it reaches the northern island. Okinawa has its own earlier rainy period, starting around early May and running to mid-June, and its rain tends to be less constant than on the mainland.

The rainy season has its own beauty. Hydrangeas bloom in temple gardens, moss turns a deeper green, and a rainy walk can feel peaceful. Pack a compact umbrella and quick-drying clothes, and plan indoor stops such as museums, covered shopping streets, and cafes for the wettest days.

Summer and the Typhoon Months

Summer in Japan is hot, humid, and lively. Moist air from the Pacific brings warm, sticky days, particularly on the Pacific side of the country. This is the season of summer festivals, fireworks, shaved ice, and cool noodles. It is also a time to head to higher ground, where mountain resorts and highland trails offer a cooler escape.

Late summer and early autumn bring typhoon season. On average, five or six typhoons pass over or near Japan each year, mostly from early August to early October, although they can occur from July through October. For travelers, the practical approach is calm and simple. Check the weather forecast regularly, stay flexible with your plans, and follow the guidance of hotel staff and local authorities if a storm approaches. Trains and flights can be adjusted during a typhoon, so keep some buffer time in your itinerary.

Autumn, Winter, and Regional Variety

Autumn is a favorite among many people. The air turns crisp, the skies are often clear, and the leaves change color in a display known as koyo. Gardens and temples take on a warm palette of red, orange, and gold, and the harvest brings seasonal food such as chestnuts, persimmons, and sweet potatoes. Trees in traditional gardens are often chosen and arranged specifically for their autumn color, which is part of why these places look so stunning at this time.

Winter has two faces. A cold air flow brings freezing temperatures and heavy snow to the mountains facing the Sea of Japan, while the Pacific side tends to enjoy clear and sunny skies. That makes winter ideal for ski trips and hot spring stays in snowy regions, while cities such as Tokyo are often crisp and bright. Hokkaido has long, very cold winters with large snowfalls in places like Sapporo and Asahikawa, and its snow festivals and winter food attract many visitors. In gardens, you may see old pines supported by ropes to protect their branches from heavy snow, a beautiful example of seasonal care.

Because Japan stretches from north to south, the seasons feel very different depending on where you are. Hokkaido has warm, comfortable summers and long winters. Honshu has the classic four-season pattern. Okinawa and the Ryukyu Islands have a subtropical climate with warm winters, hot summers, plenty of rain, and exposure to typhoons. This means you can plan a trip around the weather you enjoy most, whether that is a ski holiday or a beach stay.

A few practical tips help in every season. Dress in layers, since indoor spaces can be heated or air-conditioned strongly. Carry a small towel or handkerchief in summer and a lightweight rain jacket in the wet months. Reserve popular places early for cherry blossom and autumn leaf periods, because they are favorite times for both visitors and locals. Seasonal events and blooming dates vary from year to year, so check local forecasts and official tourism pages close to your travel dates.

The 72 Microseasons

One of the most charming parts of the Japanese calendar is the system of 72 microseasons. The year is divided into 24 major periods called sekki, and each is split into three smaller periods called ko, giving 72 periods of roughly five days each. The idea came from China, but the names did not always suit Japan's climate. In 1685, a court astronomer named Shibukawa Shunkai rewrote them to fit Japan.

Each microseason has a short, poetic name that describes a natural event. Examples include "east wind melts the ice" in early February, the first cherry blossoms in late March, peonies blooming around the turn of April and May, and bears starting to hibernate in mid-December. The dates shift slightly from year to year. Many people enjoy these names as a kind of seasonal diary, and you may spot them in cafes, shops, and calendars. Even if you do not follow them closely, they are a lovely way to notice how nature changes in small steps.

Quick Takeaways

Japan has four seasons, each with its own highlights: cherry blossoms in spring, festivals and fireworks in summer, bright leaves in autumn, and snow and hot springs in winter. The rainy season usually comes from mid-June to mid-July in most regions, typhoons are most common from August to October, and climate varies widely from Hokkaido to Okinawa. The traditional calendar adds 24 solar terms and 72 microseasons for a more poetic view.

Choose the season that matches your interests, pack for the weather, and stay flexible. Whatever the month, there is almost always something in season worth celebrating.

Frequently Asked Questions

When is the rainy season in Japan?

The rainy season, called tsuyu, usually runs from mid-June to mid-July in Honshu, Shikoku and Kyushu. Hokkaido is the notable exception, and Okinawa has an earlier rainy period from around early May to mid-June. Hydrangeas bloom in temple gardens, and museums and cafes make good indoor stops on wet days.

When is typhoon season in Japan?

On average, five or six typhoons pass over or near Japan each year, mostly from early August to early October, though they can occur from July through October. Travelers should check forecasts regularly, stay flexible, follow guidance from hotel staff and local authorities, and keep buffer time in their itinerary.

What are the 72 microseasons?

The 72 microseasons divide the year into 24 major periods called sekki, each split into three smaller periods called ko, giving 72 periods of roughly five days each. Each has a short poetic name describing a natural event, such as east wind melts the ice in early February. Shibukawa Shunkai rewrote the names to fit Japan in 1685.

Keep Exploring

More guides from Tokyo Paul: The Cherry Blossom Forecast, Seasonal Flowers of Japan, Higanbana: Japan's Red Spider Lily Fields in Autumn.