Recent forecast guidance from the Korea Meteorological Administration points to a peak temperature near 30–32°C in Busan on July 13, driven by the region’s position along the edge of the North Pacific High combined with lingering monsoon moisture that limits daytime heating through cloud cover and scattered showers. Coastal sea breezes from the Korea Strait provide additional moderation compared with inland areas under the same synoptic pattern, keeping extreme values above 34°C unlikely while still allowing brief clearing to push readings into the low 30s. Heat-wave advisories remain active across southeastern provinces, reflecting elevated baseline humidity and overnight lows that sustain thermal energy into the following day. Updated short-range model runs and the next KMA briefing will refine whether any late-day sun breaks can shift the maximum across the tightly bunched 31–33°C resolution thresholds.