The characters here say 温風, "warm wind" — but the reading, あつかぜ (atsukaze), actually means hot wind, running noticeably more intense than what's written. The rainy season is genuinely ending as this kō opens, and cicadas start their full daytime chorus almost overnight once it does.
The exact same south wind gets two different names depending only on what's overhead when it blows. During the rainy season, blowing beneath dark rain clouds, it's called 黒南風 (kurohae, "black south wind"). Once the rains clear and pale cirrus clouds take over the sky, the identical wind direction is instead called 白南風 (shirahae, "white south wind") — the wind itself hasn't changed at all, only the sky it happens to be moving under.
Still deep in its long summer season, holding the same prized status noted a few kō back.
Miyazaki's greenhouse mangoes reach their peak right around now, sold whole and ripened until the skin gives slightly to gentle pressure.
Deep into its best season, at its most nutrient-dense and least bitter.
Sweeter pound for pound than a full-size tomato at this point in summer, good eaten straight off the vine.
Mukuge blooms fresh every single morning and drops by evening, a new flower opening in the exact same spot the very next day — a rhythm so different from himawari's single, long-held bloom that the two flowers, appearing in the same season, represent almost opposite ideas of what "blooming" even means.
This kō opens the traditional window for sending shochū-mimai, running from 小暑 through the day before 立秋 (roughly August 7th) — a check-in card asking after someone's health during the hardest heat of the year. The custom traces to Edo-period Obon practice, when people carried offerings home to ancestors and, separately, to people who'd helped them; the gift-giving gradually simplified into the written greeting still sent today. A card arriving after the window closes isn't shochū-mimai anymore — it's 残暑見舞い, "lingering heat greeting," the same gesture renamed for landing on the other side of an August calendar line.
That 温風 ("warm wind") is deliberately read atsukaze ("hot wind") rather than the more literal onpū is a small, honest admission built into the calendar itself — an acknowledgment that "warm" undersells exactly what this stretch of summer actually delivers.
Kurohae and shirahae only make sense as a pair — worth watching for the exact moment the clouds change character while the wind itself stays constant.
The custom's whole premise is a genuine, low-effort inquiry into how someone's actually doing in the heat — text or call works as well as a physical card.
Delivery timing matters for the custom's own logic — better to send early in the window than risk it arriving as zansho-mimai instead.
The softer it gets, the more delicate the skin becomes, so this isn't a fruit to toss in a bag with anything heavier.
Kurohae and shirahae are the same wind, blowing from the same direction, at the same strength — the only thing that changed to earn it a new name is what happened to be in the sky above it that day. It's a small reminder that plenty of what gets treated as a meaningfully different thing is really just the same thing, seen against a different backdrop. What have you renamed, or re-categorized, in your own life recently — not because it changed, but because the conditions around it did?