- Will Seoul have less than 75mm of precipitation in September?40¢
- Will Seoul have between 75-100mm of precipitation in September?9¢
- Will Seoul have between 100-125mm of precipitation in September?13¢
- Will Seoul have between 125-150mm of precipitation in September?11¢
- Will Seoul have between 150-175mm of precipitation in September?9¢
- Will Seoul have between 175-200mm of precipitation in September?3¢
- Will Seoul have between 200-250mm of precipitation in September?7¢
- Will Seoul have 250mm or more of precipitation in September?7¢
This market will resolve according to the total precipitation in mm in Seoul in September, 2026, according to the Korea Meteorological Administration's information for the region/branch of "Seoul". If the reported value falls exactly between two brackets, then this market will resolve to the higher range bracket. The resolution source for this market will be the Korea Meteorological Administration, specifically the figure for monthly precipitation in mm when the classification is set for "ground", the region/branch is set for "Seoul", the element is set for "precipitation", and the period is set for the month of September at the https://data.kma.go.kr/climate/RankState/selectRankStatisticsDivisionList.do link once the figure is finalized for the whole month of September 2026. If the relevant data is not available by December 7, 2026, 11:59 PM ET, another credible resolution source will be chosen. The resolution source for this market measures precipitation to 1 decimal place (e.g., 1.5), thus, this is the level of precision that will be used when resolving this market. Any revisions to precipitation recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market-implied odds favor below-average September totals in Seoul, with the <75 mm bin leading at 40% amid expectations of drier autumnal conditions as the East Asian monsoon retreats. Historical September averages range from 128–168 mm (1991–2020 normals near 141.5 mm), driven by residual monsoon rains and occasional typhoon influences through early autumn. Recent early-September observations and short-term forecasts from the Korea Meteorological Administration show modest accumulations and low precipitation probabilities in the coming days, with limited tropical cyclone activity projected. Model consensus points to reduced moisture transport and stabilizing high-pressure patterns, supporting trader sentiment for totals well below the climatological mean. Extended-range updates and any late-month storm developments remain key variables that could shift these implied probabilities.