Micro-Season: “Light Rain Showers” (2022)

We have entered the micro-season of “Light Rain Showers”.  This is the second micro-season of the mini-season of Frost Descent.  The micro-seasons within Frost Descent are:

  • The First Frost Falls (Oct 23 – Oct 27)
  • Light Rain Showers (Oct 28 –  Nov 01)
  • The Maple and the Ivy Turn Yellow (Nov 02 – Nov 07)

These seasons were established in 1685 by Japanese astronomer Shibuka Shunkai and are specific to Japan. However, just because the calendar focuses on Japan doesn’t mean it isn’t applicable to others.  No matter where you live you can use these seasons as a starting point for your personal exploration of the world around you. 

As a way to celebrate this season, we will learn about rain, the different classifications of rainfall, and how the sound of rain can quiet a restless mind.  After that, we will read seasonal haiku by Issa, Buson, and Basho. 

About Rain

Rain is the term we use for liquid precipitation. Precipitation is the term used for all forms of water that fall to the earth from the upper atmosphere.  Clouds, which are made up of water droplets or ice crystals, release rain when the water droplets get too heavy to stay suspended in the air. 

Raindrops are formed around tiny pieces of material in the air called “cloud condensation nuclei (CCN)”.(2)  CCN can be dust, salt, smoke, pollution, or algae.(2)  Raindrops usually measure about .02 inches or .5 millimeters in diameter by the time they fall toward the earth.  Raindrops might actually start falling as snow. However, they can transition back to liquid form as they get closer to the earth and the atmospheric temperatures increases.  

Intensity of Rain

Scientists classify rain by the rate at which it falls per hour.  Light rain, which is highlighted in this micro-season, is when the precipitation rate is less than .098 in (2.5 mm) per hour.  The full range of rainfall rates are:

  • Light Rain: precipitation rate is less than .098 in (2.5 mm) per hour
  • Moderate rain: precipitation rate is between .098 in (2.5 mm)  and .30 in ( 7.6 mm) per hour
  • Heavy rain: when the precipitation rate is greater than 0.30 in (7.6 mm) but less than 2.0 ( 50 mm) per hour.
  • Violent rain: when the precipitation rate is greater than  2.0 in (50 mm) per hour(1)

The Sound of Rain

The sound of light rain can be very relaxing for some. Emily Mendez, MS, EdS. comments in a recent Healthline.com article, “Rain has a regular, predictable pattern . . . Our brain processes it as a calming, non-threatening noise.”(3)  Author Ginger Wojcik further supports this idea by stating:

“I find listening to rain fall is a visceral experience. It feels like each drop massages my whole body. . . I often listen to rainstorms while I work to drown out the chorus of distracting thoughts competing for my attention.”(3)

So it seems that the sound of gentle rain has the potential to calm the mind and allow for focused attention.  Perhaps this means that the sound of light rain could be helpful for those who want to write haiku.  


Seasonal Haiku

In the World Kigo Database, Dr. Gabi Greve tells us that rain by itself is not a kigo or seasonal word.  However, Dr. Greve does explain that “since the rain is a constant partner throughout the year, there are many kigo connected with it. A friend suggested there are more than 400 kigo connected to the rain.”(4) Possible rain-related kigo are “spring drizzle” or harusame, “long summer rain” or samidare, and “cold showers” or shigure which is typical for autumn and winter. 

With this in mind, let’s read some haiku.


raindrops --
only three
but fall's here
(translated by Chris Drake)
the mountain pigeon
winter rain
(translated by David G. Lanoue)


It may transform itself, 
This umbrella lent by a temple, 
In the winter rain. 
(Translated by R. H. Blyth)
meditating in the dripping rain a snail 
(The Path of Flowering Thorn: The Life and Poetry of Yosa Buson by Makoto Ueda)


already autumn
even sprinkles of rain
in the moon’s shape
(translated by Jane Reichhold)
a rainy day 
the autumn world 
of a border town 
(translated by Jane Reichhold) 
banana in a windstorm: 
a night of listening to rain 
dripping in the tub. 
(translated by David Landis Barnhill)

A Haiku Invitation

This week’s haiku invitation is to write a haiku or senryu that references autumn rain.

Share your haiku in the comments below, or post on your own page and link back to this post. I can’t wait to read what you write! 


  1. “Rain”; Wikipedia
  2. “Rain”; National Geographic
  3. Ginger Wojcik; “How the Sound of Rain Can Calm an Anxious Mind”; Healthline.com
  4. “Rain in various Kigo”; World Kigo Database

Issa’s haiku were retrieved from World Kigo Database and David G. Lanoue’s  HaikuGuy.com.  Buson’s haiku were retrieved from “Haiku of Yosa Buson Organized by Rōmaji, in alphabetical order; translated into English, French, Spanish.”  Basho’s haiku were retrieved from “Matsuo Bashō’s haiku poems in romanized Japanese with English translations” Editor: Gábor Terebess 


63 thoughts on “Micro-Season: “Light Rain Showers” (2022)

Add yours

    1. Thanks! There are so many rain related haiku it is hard to choose. Rain dripping in the tub is just a great image. Thanks for the comment and have a great weekend!

  1. Rain and gold leaves fall
    Leaves to rest, rain to feed
    Earth’s winter embrace

    Rain has been intense here in the last week, but we have glorious blue sky days too. The turning full tilt towards winter begins in November.

    1. Thank you so much for sharing your poem. We have had a little rain this week but nothing that intense. We are getting ready for a clear and cold weekend. Thanks again for the comment!

    1. autumn rain–
      all the jack-o-lanterns
      are dark

      Nothing like the rain to calm and refresh, despite any inconvenience to trick-and-treaters. Thank you for these posts.

      1. Thanks for joining the conversation and sharing your wonderful haiku! I definitely appreciate the rain and Halloween tie in. I hope you have a great week. Next season is the Maple and Ivy turn yellow!

  2. So beautiful , Light Rain Showers video and lovely poem written to read 🌷🙏👍🏻📖🌧
    Here don’t have 4 seasons , only two seasons hot season and rainy season 🌧😊
    God’s creations are rain and shine , exactly the video showing , like
    Malaysia’s down power 🌧
    Heavy rain , light rain ,lightning and Thunder we can experience here , hill stations only
    can see mist 👍🏻👏here 4 borders sea 🌊 so always get rain and Malaysia is tropical
    Country ❤️👏always morning shine and evening rain , wonderful climate for us 😊
    Thank you for this explanation about the climate changes and how the rain falling
    from sky to earth 🌎 grace wishes and happy weekend 🌷🙏♥️🌷

    1. Hi Thattamma, Only 2 seasons! That is very different than here where was really have all the seasons and then some made up ones like “stick season” and “mud season”. Stick season is when all the trees are bare and there is no snow. Mud season is when the snow starts to thaw and the dirt roads become deep mud. Thanks for the comment and the ongoing support. Have a good weekend

      1. Europe and USA all 4seasons , autumn, winter, summer and spring 🌷🙏👍🏻
        Malaysia don’t have changing seasons 😊here rain and shine season only 👍🏻
        Thank you so much for this lovely message and happy weekend 🌷🙏♥️🌷

    1. Hi Ashley, Yes. I hear that! I usually apprecaite the rain until I have an outside painting project that needs to be completed! I hope all is well. Have a good weekend.

    1. Hi Sara, Thanks for the visit. You have been sharing some great rainy day photos lately. They are perfect for the season. Thanks again and have a good weekend.

  3. soggy leaves
    surprise October rain
    hastens their descent

    Here in Southern CA we are so much in drought that any and all rain is a surprise. Many people don’t realize that we also have falling leaves as temperature isn’t the reason they let go. Happily there are lots of maple and sweetgum trees in my neighborhood.

    1. Hi Eavonka, Another wonderful haiku for the season. I didn’t know that Southern California had Maple trees! I really do learn something new every day.

  4. rain always welcome
    our parched earth drinks greedily
    in the dusty West

    Light rain showers are my absolute favorite, but I’ll take whatever’s offered. This week we had a bit of rain and then about two inches of snow. Moisture!

    1. Hi Tracy,
      Thanks so much for the comment and sharing your haiku. This season has brought up a lot of thoughts about climate change and drought. Your poem does a great job at highlighting this issue. Thanks again and I hope all is well.

  5. rivers of rain
    flood the streets
    leaf-clogged gutters

    We’ve had a very dry summer out here in the Pacific Northwest but the rain has finally returned. Of course with the falling leaves it causes other problems…

    1. Hi Petro, Thanks so much for stopping by and adding to the conversation. Wonderful seasonal haiku. It seems like it has been a difficult couple of years out there weather wise.
      Have a good week and I hope the rain causes minimal problems.

  6. With thanks again to Nan for redirection…
    I introduced a flash fiction piece with these three haiku;

    each droplet
    back lit by sunshine
    day showers

    just enough
    puddles in the road
    squirrel drinks

    orange hue
    turns opaque pastel
    dusk shower

    © JP/dh

    The rest of the piece can be found HERE

  7. I came back to read the rest of the post after I posted my longer piece and the haiku for ‘light rain showers’ in the comments here.

    I enjoyed reading about the rain. I have always been a fan of water – even when there is too much. I used to have a skylight that allowed the rain to sort of echo and drum. But when we redid our roof and put in a new skylight – we only hear the rain when it is really heavy. But on the plus side this one is clear and I can see the stars and the moon through it (though just at certain times).

    1. The sound of rain is so magical sometimes. I also get that interesting trade off between a well-sealed house and losing the connection to the outside world. We also replaced the roof and the insulation in the attic and it is so quiet in the house now! Thanks again for sharing your work. Have a great weekend.

      1. I know some folks who put on a metal roof… just to hear the rain. But the insulation even with that kind of roof is different now so the rain gets ‘muffled’.

        Having some more light rain showers today… and around 9am…

        one young buck rambles
        through light rain

        © JP/dh

      2. That must have been a wonderful sight!
        The other day I was just thinking about how weather adverse I had become as I have gotten older. When I was younger, I spent plenty of time out in the rain. Now, not so much. Hmm, that haiku may have a double meaning?!

      3. Maybe… the double meaning bit – folks can read what they want into it…
        I just saw the young buck 😉

        Word play is like that. As well as interpretation – I don’t mind if someone finds something that I didn’t intend.

      4. I like that…
        I just saw the new prompt from Nan – (maple and ivy…)
        Once I catch up on some other things I hope to be by…

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