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 6, 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 6 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.
On Polymarket, prices reflect that venue's order book, liquidity, and how traders price the outcome right now. On Polymarket, the highest temperature in Madrid on June 6 is priced through binary or categorical outcome contracts, where each temperature range or specific threshold trades as a separate share. Traders buy and sell these shares at prices between 0 and 1 (or 0–100 cents), with the price reflecting the implied probability of that outcome occurring. As new information emerges—seasonal forecasts, climate data, or real-time weather patterns—traders adjust positions, moving prices up or down. The market-clearing price at any moment represents the marginal trader's belief about the likelihood of each temperature outcome.
The market resolves on Jun 6, 2026, after the highest temperature in Madrid on June 6, 2026, has been recorded and verified. Resolution depends on identifying the official peak temperature for that calendar day in Madrid. The specific data source and measurement methodology are defined in the market's terms at creation. Once the event occurs and the temperature is confirmed, the outcome is determined and all shares are settled according to which temperature bracket or threshold was reached. Traders should review the market's resolution criteria before trading to understand how the winning outcome will be officially determined.
Several factors could shift odds for Madrid's peak temperature on June 6. Seasonal climate patterns and long-range weather forecasts released closer to the date will influence trader expectations. Heat waves, cold fronts, or unusual atmospheric conditions affecting southern Europe could trigger repricing. El Niño or La Niña cycles and broader climate anomalies may alter baseline temperature expectations. Real-time weather model updates in the days leading up to June 6 will likely drive significant volume and price movement. Additionally, any major volcanic activity or solar events affecting global temperatures could indirectly influence Madrid's forecast. Monitor meteorological updates and European weather services for catalysts.