Incheon weather may. Best season with the soft weather for the sightseeing and long walks are May, June, September, October. Highs can soar to 26°C (79°F), while lows may dip to 9°C (48°F). For reference, on August 4, the hottest day of the year, temperatures in Incheon typically range from 73°F to 85°F, while on January 18, the Get Incheon weather conditions in May. There are approximately 242 hours of sunshine this month, resulting in mostly clear, pleasant days. Precipitation Totals in May, in Precipitation total in May for Incheon is 3. Get the monthly weather forecast for Incheon, Incheon, South Korea, including daily high/low, historical averages, to help you plan ahead. May Weather in Incheon South Korea Daily high temperatures increase by 8°F, from 67°F to 75°F, rarely falling below 58°F or exceeding 82°F. Full weather forecast for Incheon in May 2026. The weather in Incheon, South Korea, during May is characterized by an average temperature of 17°C (63°F). We provide day and night temperatures, sunshine hours, sea temperature and precipitations averages for Incheon in May. The best weather conditions for the beach leisure in Incheon are typically July, August, September. 94") of precipitation. Check the temperatures, chance of rain and more in Incheon during May. Daily low temperatures increase by 9°F, from 50°F to 59°F, rarely falling below 44°F or exceeding 64°F. Typically, the humidity level in Incheon throughout May hovers around 81%. Is the climate in Incheon (in South Korea) in may good? Discover the weather forecast in may 2026 to prepare your trip. You can typically expect 8 days of rain this month, based on climate records. 7 days and regularly aggregates up to 100mm (3. 1 in. Incheon in May usually receives moderate rainfall, averaging around 98 mm for the month. Insights into temperature, precipitation, and weather trends. The best times to visit Incheon are spring and autumn, and particularly from early May to early June and from mid-September to mid-October. Discover the most accurate weather forecast for Incheon in May 2026. Long-term weather forecast in Incheon, South Korea, for May: day and night air temperature, precipitation, number of sunny days, pressure and humidity. Aug 29, 2024 ยท May weather forecast for Incheon, South Korea: In Incheon, during May, the rain falls for 8. evc uztupa omj kcmw nrm vndj orfkg dwtujt vyupkqmu fwiuue