Trader consensus has coalesced around a 22°C high in Busan on May 23 because official Korea Meteorological Administration guidance and ensemble models project a daytime maximum near that threshold, consistent with mid-May climatology and coastal moderation from the Korea Strait. Light easterly or northeasterly winds, broken cloud cover, and possible light showers limit afternoon warming despite peak solar input, keeping values within the typical 20–23°C historical range. Recent short-range forecasts show no strong southerly flow or clear-sky surge that would elevate readings. A sudden shift to full sun and reduced marine influence could allow 23°C, but current observational trends and model consensus make such an outcome improbable before resolution.