Korean summers and winters seem extreme compared to what I am used to?

Korean summers and winters can be intense, especially if you are coming from a more temperate climate. Here is how to prepare.

Summer (June to September). Hot, humid, and rainy. July peaks around 30 to 35 degrees with 80 to 90 percent humidity. Heat waves can push 38 degrees. Monsoon season (장마) runs June to July with heavy rain and flooding risk.

Summer survival. Use air conditioning aggressively at home. Most Korean apartments have wall units. Set to 24 to 26 degrees with dehumidifier mode when humidity is high. Drink electrolyte beverages like Pocari Sweat to prevent heatstroke. Carry a portable fan (휴대용 선풍기), widely sold for 10,000 to 30,000 won. Wear breathable linen, cotton, and UV-protective clothes. Sunscreen daily (Korean brands like Beauty of Joseon and Anua are excellent and cheap).

During heat waves (폭염 경보), avoid outdoor exercise from 11 am to 4 pm. Subway stations, large malls, and the public library are free cooling shelters. Watch for 노약자 (elderly and vulnerable) warnings on news. If you feel dizzy or nauseous, move to AC immediately and drink cold water.

Winter (December to February). Cold, dry, and windy. January averages -5 to 5 degrees with cold snaps reaching -15 in Seoul. Northern provinces like Gangwon hit -25. Humidity drops to 30 percent indoors with heating, causing dry skin and respiratory issues.

Winter survival. Layered clothing is essential. Heat tech long underwear (Uniqlo Heattech is the standard, also Spao and Coupang house brands), thick socks, gloves, scarf, and a heavy down coat or padded jacket. Korean padded coats (long puffer jackets) are extremely warm and stylish, with brands like Discovery, Kolon, and Black Yak.

Use a humidifier indoors to combat dry air. Drink plenty of water and use moisturizer. Heated floor (ondol) helps keep feet warm. Wear indoor padded slippers. For sub-zero days, hand warmers (핫팩) sold at convenience stores for 1,000 to 2,000 won are excellent.

Ice on sidewalks is the biggest winter hazard. Wear non-slip soles. Subway entrances and apartment building entrances often have ice rugs. Walk slowly and avoid carrying heavy loads on icy days.

Both seasons are intense but manageable with the right gear and habits.