1. A Survey Found About 4 in 10 People Feel Cool When They Hear Wind Chimes
Weathernews conducted a survey on August 2 and 3, 2019, asking 7,618 people how they felt about the sound of wind chimes [1]. About 42% said they felt "cool," while 49% said they felt the sound was "pretty." This means slightly more people appreciated the beauty of the sound than the feeling of coolness. The survey also found a trend where older people were more likely to answer that they felt cool.
This data is a summary of opinions, not a controlled experiment. However, it suggests that the way people feel coolness varies by individual, and age or experience might play a role.
2. How a Wind Chime Makes Sound When the Wind Blows
A wind chime consists of a bell-shaped body with a "tongue" hanging inside. A paper strip, called a tanzaku, is tied to the tongue. When wind blows, the tanzaku sways, causing the tongue to hit the body and make a sound. The tanzaku is designed specifically so that the chime rings even in weak wind [3].
Therefore, the sound of a wind chime is a signal that "wind is blowing now." When wind blows, people often feel cooler. It is a natural flow for the sound of a wind chime and the feeling of coolness to become linked in the mind. If we compare it to a letter, the wind chime is a message from the wind. However, receiving this message does not mean the air temperature itself drops.
3. How Wind Chimes Changed from Ancient Chinese Divination Tools to Summer Decorations
The prototype of the wind chime is said to be the "shofutaku," which was hung in bamboo forests in China about 2,000 years ago. People used the direction of the wind and the way the bells rang to predict good or bad fortune [2]. It came to Japan along with Buddhism and was hung under the eaves of temples as a charm to ward off evil.
By the Edo period, wind chimes began to be seen as objects that provided a sense of coolness in summer. It seems that not just the sound, but the sight of the tanzaku swaying in the wind, also contributed to this feeling [3]. Glass wind chimes are said to have arrived in Edo (now Tokyo) from Nagasaki during the Edo period, becoming common in towns around 1800. They were initially reported to be expensive [2]. These historical details come from municipal explanations and secondary sources, so verification from old documents is limited.
4. Kyoto Prefectural University Experiment on How Sound and Color Affect Temperature Perception
A team led by Naoki Matsubara at Kyoto Prefectural University studied how sound and color affect temperature perception to help with home energy saving (2002–2004). Participants stayed in rooms with various environmental sounds and colors and reported their feelings [4].
The report states that when the temperature was neutral to slightly high, the environmental sound of a "wind chime" made participants feel cooler or more comfortable. This effect was most significant under gray color conditions. The study also found that color affected how warm or cool participants felt: warm colors made people feel warmer, and cool colors made them feel cooler, matching theories linking color and temperature perception. However, this result is based on the subjective feeling of "feeling cool," not a drop in actual temperature. The specific numbers showing the size of the effect are not listed in the referenced abstract.
5. Can People Tell Hot Water from Cold Water by Sound Alone?
In 2024, a paper was published investigating the "ability to know temperature from sound." It found that people can distinguish between hot water and cold water to some extent just by listening to the sound of the water being poured [5].
Interestingly, many people are unaware they have this ability. Researchers think this skill may be acquired through long-term experience in daily life. It is possible that the experience of hearing wind chimes every summer also influences how we feel coolness. However, this study is about water sounds, not wind chimes. Applying these findings to wind chimes is only a hint for thinking about the topic.
6. How Sound and Color Changed Perceived Temperature in VR Experiments
In VR experiments published in 2025 (with 20 and 24 participants), cues like sound and color significantly changed subjective judgments about temperature [6]. However, the effect of illusions caused by sound and color on the temperature actually perceived was small, about ±0.5°C, and sometimes did not match "hot/cold" evaluations. The paper notes that sound cues can substitute for or assist visual information.
This paper is a preprint (not yet peer-reviewed) and was not a wind chime experiment. It is unknown if the same effect applies to wind chimes. Still, it serves as a reference that we need to separate "feeling cool because of sound" from "actually becoming cool." The 0.5°C figure does not mean the air temperature drops by 0.5°C when a wind chime rings.
7. Simple Ways to Investigate Cool Sounds at Home
If you want to investigate this yourself, you can try simple activities at home. Look for three sounds in your house that you think are "cool," and note the coolness you feel on a scale of 0 to 5. If you have a thermometer, check the temperature before and after listening. You can also check with a thermometer to see if the temperature changes.
Ask an adult to pour room-temperature or lukewarm water in another room and guess if it is "cold water" or "lukewarm water" just by the sound. Do not use hot water. For further reading, articles from Weathernews and the Edo Ward page on Edo wind chimes are available in Japanese.