2026-04-18 to 2026-04-18, the price of 28°C plunged from 25c to 14.5c, as updated weather forecasts confirmed the likely high temperature will be above 29°C, reducing the probability of cooler outcomes.

Weather prediction markets are relatively common on certain prediction platforms, but for the general public, forecasting the exact high temperature of a specific city (Busan, South Korea) on a specific date remains a rather niche micro-event lacking broad public discourse.

While the title refers broadly to Kuala Lumpur, the resolution rules strictly specify data from the Kuala Lumpur Intl Airport (WMKK) station, which is located far from the city center and may have a temperature variance. Additionally, the rule relies on whole degrees Celsius, meaning rounding methods at boundary values could cause disputes.

Predicting the exact daily maximum temperature of a specific city is highly niche and trivial. Unless one is actively participating in prediction markets or is a weather enthusiast, people rarely think about such mundane daily statistics.

Between 06:43 and 07:48 on April 18, 2026, the price of the '33°C' option surged from 18.5c to 31c, while the prices of '30°C' and '29°C' dropped significantly. This was driven by short-term weather model updates confirming reduced cold air activity and thinner cloud cover, leading to an upward revision of the expected daytime high temperature.

Predicting the daily high temperature of a specific city on a specific date is rarely discussed by everyday people, but it is a relatively common weather derivative in prediction markets, offering a moderate level of novelty.

There is a significant divergence and market inefficiency. Mainstream weather forecasts point to a high of 31°C-32°C, yet the market is heavily overpricing extreme high temperatures like 34°C and 36°C (giving them 15-25% probabilities). This inflates the overall Yes prices across the board, likely driven by low liquidity or retail over-hedging.