TOTAL VOLUME:
$134.2b
24H VOL:
$126,324,530
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,434,646,834
406,019
Markets across
30,401
events
MATCHED EVENTS:
2,689
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: Jun 27, 8:00 AM EST
Polymarket
This market will resolve to the temperature range that contains the highest temperature recorded at the Adolfo Suárez Madrid-Barajas Airport Station in degrees Celsius on 27 Jun '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Adolfo Suárez Madrid-Barajas Airport Station, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve until the first data point for the following date has been published on the resolution source. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
This market will resolve to the temperature range that contains the highest temperature recorded at the Adolfo Suárez Madrid-Barajas Airport Station in degrees Celsius on 27 Jun '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Adolfo Suárez Madrid-Barajas Airport Station, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD. To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C. This market can not resolve until the first data point for the following date has been published on the resolution source. The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°C). Thus, this is the level of precision that will be used when resolving the market. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Prediction market odds reflect real-money trader conviction and often diverge from traditional weather forecasts issued by meteorological agencies. While analysts rely on atmospheric models and historical data, this market aggregates dispersed information from participants betting on the actual outcome. Comparing implied probabilities here to official forecasts from Spain's national weather service or international models can reveal where the crowd expects surprises. Markets typically price in uncertainty more dynamically than static forecasts, especially as the event date approaches and new data emerges.
This market resolves around Jun 27, 2026, once June 27 concludes and the highest temperature recorded in Madrid that day becomes verifiable. The outcome is confirmed against credible public sources documenting the actual peak temperature. Traders who correctly predicted whether the temperature would meet or exceed the specified threshold receive their winnings, while incorrect positions expire worthless. Resolution timing depends on when official data is published and validated by the platform.
Weather model updates and seasonal forecasts are primary drivers; significant revisions from European meteorological centers can shift odds sharply. Atmospheric patterns—such as heat waves, cold fronts, or unusual pressure systems—will influence trader positioning as June 27 approaches. Real-time weather alerts, historical temperature anomalies for that date, and broader climate trends in southern Europe may also trigger repricing. As the event date nears, intraday forecasts become more precise, typically narrowing uncertainty and stabilizing prices in this market.