Highest temperature in Wellington on July 13?

Prediction market odds often diverge from traditional weather analyst forecasts because they aggregate real-money bets from many participants with different information and incentives. While meteorologists rely on physics-based models and historical data, this market reflects traders' collective judgment about the most likely outcome. Comparing the two can reveal where consensus is strong or where uncertainty remains. Analysts may publish point forecasts or ranges, whereas this market distills expectations into a single probability, making it a useful cross-check against conventional weather predictions.

On Polymarket, this market is priced through an automated market maker that sets odds based on the ratio of shares bought and sold. On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. Traders purchase YES or NO shares at prices reflecting their belief in the outcome, and the cumulative trading activity determines the displayed probability. As more capital flows into one side, the price adjusts to rebalance supply and demand. This continuous repricing mechanism ensures the market stays responsive to new information and trader sentiment right up until resolution.

This market resolves around Jul 13, 2026, once the highest temperature recorded in Wellington on July 13 becomes verifiable from credible public sources. The outcome is determined by comparing actual weather data against the specific temperature threshold embedded in the market's terms. Once the event date passes and official readings are confirmed, the market settles automatically, paying out traders who correctly predicted the outcome. Resolution typically occurs within hours of the event, pending data verification.

Weather forecasts updated by meteorological agencies can shift market odds significantly as new model runs refine temperature predictions. Seasonal weather patterns, ocean temperatures, and atmospheric pressure systems all influence expectations. Major weather events or unusual atmospheric conditions in the days leading up to July 13 may prompt rapid repricing. Additionally, historical temperature records for Wellington on that date and recent climate anomalies can sway trader conviction. Real-time trading activity itself—large bets from informed participants—often signals changing views and drives price movement.