The first kō of 立秋 — the beginning of autumn. The calendar says so; the thermometer disagrees. Days are still fiercely hot, and this stretch has its own name, 残暑 (zansho), the lingering heat that runs from Risshū all the way to the autumn equinox.
But the name of this kō points somewhere more specific than the temperature. It says the cool wind arrives. Not the cool weather — the wind. On some morning in these five days, stepping outside before the day has properly started, the air moves differently. It is the first evidence of autumn, and it arrives through the skin and the ear rather than the eye.
At its best through late summer — the small ones are good simply grilled with salt.
Rich and oily now. Cheap, plentiful, and a staple of the late-summer table.
Thought of as high summer, but in haiku it is classified as an early-autumn seasonal word — a small reminder that the old calendar has already turned.
The peak of the season. Best eaten cold, over a plate, without ceremony.
Coming into their own now and running on through 処暑 into September.
The bitterness is the point — traditionally eaten to push back against summer fatigue.
Takes oil well; at its peak through the whole of this month.
Cooling and high in water — a plain one with miso is a summer habit worth keeping.
Sweetest right now, and worth buying the day you plan to eat it.
In season alongside the corn, and the natural companion to a cold drink in the evening.
All three belong to the early part of the day. Asagao opens at dawn and is finished by noon; tsuyukusa does much the same, its blue lasting only a morning. Flowers that ask you to be up early to see them at all — which is also when the cool wind this kō is named for is easiest to catch.
Seasonal greeting cards change their name at Risshū. Up to the day before, a card enquiring after someone's health in the heat is 暑中見舞い (shochū-mimai); from Risshū onward the same card becomes 残暑見舞い — an enquiry after the *remaining* heat. Nothing about the weather has changed. The calendar has, and the letter follows it. Conventionally sent from around August 7 until the end of the month.
涼 (ryō/suzu) is coolness, 風 (fū/kaze) wind, 至 (shi/itaru) to arrive. Usually read すずかぜいたる (suzukaze itaru), though りょうふういたる also appears. The autumn wind carries two older names worth knowing: 金風 (kinpū, 'metal wind') and 白風 (hakufū, 'white wind') — both from the five-element system, in which autumn corresponds to metal and to the colour white. Like the rest of the 72 kō, this one came from China and was revised in the Edo period by the astronomer Shibukawa Shunkai to fit Japan's climate.
The window is short — roughly August 7 to the end of the month. A few lines to someone you have not spoken to since spring.
The wind this kō is named for is a dawn and dusk phenomenon. It is genuinely not there at midday.
There is no fixed festival food for Risshū, but cold noodles heaped with ginger, myōga and shiso is the standard answer to heat.
"That autumn has come is not clearly visible to the eye — yet the sound of the wind startles me into knowing it."
"So autumn has come — a sneeze convinced me of it."
暑中見舞い becomes 残暑見舞い from Risshū. In formal writing, 立秋の候 is the correct opening from roughly August 7 to 22.
Calendar autumn is not actual autumn. The midday sun is still at full strength and heatstroke risk does not drop for weeks.
Gōya, tomato, cucumber and aubergine are high in vitamin C and potassium, and are the traditional counter to accumulated summer fatigue.
There is something worth sitting with in a calendar that declares autumn while the heat is still at its worst. It is not a mistake, and it is not wishful thinking. It is a claim that the turn has already happened — below the level at which it can be felt — and that the evidence will reach you slightly later than the fact. The old poem gets this exactly right. Toshiyuki does not say he saw autumn. He says he was startled into noticing it, by a sound, having missed it entirely with his eyes. What in your own life has probably already turned, even though nothing visible has caught up to it yet — and what would it actually take for you to notice, the way Toshiyuki did, by ear rather than by eye?