The title asks for the highest temperature in Seoul, but the resolution rules explicitly specify using data from Incheon International Airport (RKSI). Temperatures between Seoul city and the coastal Incheon airport often differ, posing a significant trap for traders relying solely on Seoul forecasts. Additionally, the rule uses whole degrees Celsius, introducing rounding risks.

Market pricing significantly diverges from the consensus of weather forecasts. The market assigns unusually high probabilities (over 20% each) to 13°C, 14°C, and 15°C, whereas mainstream meteorological forecasts (like AccuWeather and the Aviation Meteorological Office) project highs specifically between 17°C and 19°C for RKSI on April 29. The market is severely overestimating the likelihood of lower temperatures.

The title broadly refers to Beijing, but resolution strictly relies on a single weather station (ZBAA) via Wunderground. Rounding to whole degrees and ignoring post-finalization revisions could cause disputes if equipment glitches or data synchronization delays occur.

Significant divergence exists. Mainstream weather forecasts (e.g., AccuWeather) explicitly predict that the high temperature at San Francisco International Airport (SFO) on April 28 will reach 69°F, and CBS forecasts 67°F. However, the 'Yes' price for '66°F or higher' in the prediction market is only 28c, implying a 28% probability. This indicates that the market is severely lagging behind the latest meteorological data, presenting a substantial cognitive bias.