Seoul Set for Wet May as Rainfall Nears Seasonal High
Seoul is expected to record roughly 120 to 130 millimeters of precipitation in May 2026, pointing to a notably wet month for the capital.
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Will Seoul have between 120-130mm of precipitation in May? Prediction Market OddsSeoul is on track for a rainy May, with total precipitation expected to fall between 120 and 130 millimeters by the end of the month, according to data standards used by the Korea Meteorological Administration. The figure would place the capital firmly in a wetter-than-usual pattern as spring transitions toward the early summer monsoon season.
The anticipated rainfall could bring periodic disruptions to commuting, outdoor events and construction activity across the metropolitan area. City officials and residents are likely to monitor drainage conditions closely, particularly during heavier rain episodes, as Seoul prepares for the seasonal rise in humidity and storm activity heading into June.