What to Expect and How to Have Fun During Tsuyu

What is Tsuyu?

Tsuyu, also known as the rainy season in Japan, typically lasts from May to early July, affecting most parts of the country except for Hokkaido and the Ogasawara Islands. This period is characterized by frequent rain showers and high humidity, resulting from the collision of cold northerly and warm southerly air masses.

When Does Tsuyu Occur?

The timing of Tsuyu varies slightly by region. In Okinawa, the rainy season starts in May and ends in June, while in the rest of Japan, it generally begins in early June and lasts until mid-July. For example, in Tokyo, Tsuyu usually occurs between mid-May and mid-June.

Regional Variations

The rain patterns during Tsuyu differ across Japan. Western Japan experiences strong, sudden showers, known as "yosei tsuyu," whereas eastern Japan sees more intermittent rain, referred to as "insei tsuyu".

Weather Conditions

During Tsuyu, the weather is not consistently rainy; there are periods of sunny days known as "tsuyu no nakayasumi" (temporary periods with no rain). However, when it does rain, the precipitation can be significant. The humidity level often exceeds 70%, and strong winds are common.

Health Considerations

The high humidity and temperature fluctuations during Tsuyu can lead to health issues such as heatstroke on sunny days and rapid temperature drops on rainy days. It is essential to stay hydrated, wear appropriate clothing, and bring cold-preventing medicine.

What to Wear

Given the unpredictable weather, it is crucial to dress accordingly. Pack light, waterproof jackets, raincoats, and removable layers to adapt to temperature changes. Rain boots and a sturdy umbrella are must-haves. Umbrellas can be purchased inexpensively at convenience stores, and it is advisable to mark your umbrella to avoid mix-ups.

Enjoying the Rainy Season

Hydrangeas and Other Attractions

One of the highlights of Tsuyu is the blooming of hydrangeas, which are at their peak in June. Popular spots to see these flowers include Meigetsuin Temple in Kamakura, known as the "Hydrangea Temple," and other temples and gardens around Japan.

Indoor Activities

Tsuyu offers a great opportunity to explore Japan's indoor attractions, such as cinemas, museums, and izakayas. These places provide a dry and comfortable environment to enjoy while the rain falls outside.

Fashionable Rainwear

In recent years, fashionable rainwear has become popular, allowing you to stay stylish while staying dry. Various types of raincoats, rain boots, and umbrellas are available, making it fun to dress up for rainy days.

Frog-Themed Items

Frogs are a common theme during Tsuyu, and you can find frog-decorated stationery, tableware, ornaments, and stuffed animals. These items can make for fun and unique souvenirs.

Travel Tips

Avoiding Crowds

Traveling during Tsuyu can be advantageous if you prefer fewer tourists. Popular outdoor attractions are less crowded, making it easier to explore without the usual throngs of visitors.

Alternative Destinations

If you prefer to avoid the rain altogether, Hokkaido is a good domestic destination. It is exempt from the rainy season and offers a different experience, including the first lavender blooms in June.

Natural Disaster Preparedness

While Tsuyu does not typically bring severe natural disasters, it is always wise to be prepared. Heavy rainfall can lead to flooding and landslides, so having a preparedness kit is advisable, especially if you live in or plan to visit areas prone to these risks.

Cultural Traditions

Teru Teru Bozu

The Japanese have a traditional way to wish for good weather: the Teru Teru Bozu doll. Made from a piece of fabric and a ball, this doll is hung from windows to bring back sunny skies.

By understanding and preparing for Tsuyu, you can enjoy this unique season in Japan and experience the country in a different and often more serene way.