Gentle Rains of Early May, Iris Blooms & Japanese Traditions

The picture above was taken in Miyazaki Shrine. The shrine maidens are about to begin their workday, which includes sacred cleansing, ritual dances, and running the shrine’s shops.

In Japan, early May brings gentle rains known as samidare, a hallmark of the country’s early summer traditions. These rains coincide with Children’s Day, a national celebration of youth, health, and seasonal renewal.

Samidare, literally “fifth month rain,” refers to the gentle showers of early summer. Unlike the heavy downpours of the rainy season to come, samidare is soft and lingering, soaking the soil and enriching the colors of the landscape. It is a quiet prelude to summer.

In the traditional Japanese calendar, summer begins on May 5. This date is also the Children’s Day national holiday (kodomo no hi) and Iris Day (ayame no hi).

Among the oldest traditions observed on this day are preparing baths with iris leaves (shōbu-yu) as well as yomogi leaves.

Iris Baths and Early Summer Wellness

In the traditional Japanese calendar, early May is a time when the body adjusts to warmer, more humid days. Seasonal bathing customs such as shōbu-yu reflect this older way of living with the rhythms of nature.

The fragrance of iris leaves, the warmth of the bath, and the symbolism of purification all come together in a simple ritual of renewal. It is a quiet custom, but one that still carries the feeling of early summer in Japan.

Thoughts and Reflections

It has been raining for the past few days. Rivers are full, and their banks are covered with ayame irises.

The following haiku was written over two centuries ago. It still rings fresh today.

• after the rain
• colors of a deep rainbow
• irises

- Issa Kobayashi (1763–1828)