Highest temperature in Madrid on August 15?

Platform comparison

Market context

Madrid's highest temperature on 15 August 2026 will be measured at Adolfo Suárez Madrid-Barajas Airport Station and resolved via Weather Underground's Daily Observations table. The market currently implies a 2% probability for the YES outcome, suggesting traders assess a low likelihood of an exceptionally high reading on that specific date.

August temperatures in Madrid typically peak between 35°C and 40°C, with historical records showing that extreme heat days above 42°C occur irregularly across the month. The city's all-time August high stands at 42.2°C, recorded in 2003 during Europe's severe heatwave. Daily highs on 15 August specifically have ranged from 28°C to 39°C over recent decades, making the current crowd assessment reasonable given that the market likely settles on a specific temperature bracket rather than an open-ended figure. The 2% probability reflects the rarity of record-breaking conditions on any given day.

Traders should monitor European weather forecasting models as August 2026 approaches, particularly tracking whether Atlantic pressure systems or Saharan air masses are forecast to influence the Iberian Peninsula during mid-August. Spain's national meteorological agency (AEMET) publishes monthly climate outlooks that may indicate whether anomalous heat is anticipated. Additionally, broader climate patterns such as sea surface temperatures in the Mediterranean and the North Atlantic Oscillation index will influence seasonal conditions. Resolution depends entirely on the automated station reading at Barajas Airport, making instrument calibration and data availability the only operational dependencies beyond atmospheric conditions themselves.

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Madrid on August 15? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

UK Frequently Asked Questions

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