**Recent short-range forecasts for Busan on June 15, 2026, indicate a mostly sunny day with a daytime high near 26°C (79°F), consistent with early-summer climatology for the coastal city.** Sea breezes and moderate humidity from the East Sea typically cap maximum temperatures a few degrees below inland areas, aligning with the market’s concentration of probability on 27–29°C outcomes. National and global models (including those referenced by the Korea Meteorological Administration) show stable high-pressure influence supporting gradual daytime warming without strong advection of hotter air masses, while the pre-monsoon pattern keeps cloud cover limited. Historical June averages for Busan cluster around 24–26°C highs, with mid-month values rising modestly; current guidance places June 15 slightly above the monthly mean but well below peak-summer thresholds. This consensus, combined with low precipitation chances and light winds, underpins the leading implied probabilities at 28°C (43.5%) and 27°C (28.5%), with modest tail risk priced for 29–30°C if insolation exceeds expectations. Updated model runs and official briefings in the final 24 hours before resolution remain the key near-term catalysts.