How do foreigners survive the extreme heat and humidity during Korean summers?

Korean summer heat (July to mid-August) is no joke. Daytime temperatures regularly hit 33 to 36 Celsius with humidity over 80 percent, and the urban heat island effect pushes Seoul nights into 27 to 29 Celsius (yeolda-jeya, 열대야 tropical nights), making sleep miserable without AC. Heatwave alerts (폭염경보) trigger when feels-like temperatures exceed 35 for 2+ days.

Survival starts with hydration (3+ liters of water daily, electrolyte drinks like Pocari Sweat) and avoiding outdoor activity between 12pm and 4pm when possible. Carry a small electric mini-fan, sun umbrella (양산, very common and not just for women), and a cold gel towel (쿨토시) for arms or neck. UV index hits extreme levels, so SPF 50+ sunscreen, sunglasses, and a wide hat are essential. Most apartments use AC heavily during this period (KEPCO bills can spike to 200,000 won/month), but heat-protection housing subsidies (에너지바우처) are available for low-income households including foreigners.

Public cooling shelters (무더위 쉼터) at community centers, libraries, subway stations, and large stores like Lotte Mart and Emart open free of charge during heatwaves. The 24-hour jjimjilbang sauna (12,000 won) might sound counterintuitive but their cold rooms (얼음방) and AC sleeping floors save many through tropical nights. Watch for heat exhaustion symptoms (dizziness, nausea, stop sweating despite heat) and call 119 immediately. Korean summer foods like samgyetang (chicken ginseng soup), naengmyeon (cold noodles), and patbingsu (shaved ice) are designed for this weather and worth trying.