Highest temperature in Madrid on July 12?

Platform comparison

Market context

Madrid is currently experiencing an intense summer heatwave that has pushed temperatures well above seasonal averages across central Spain, with the city under an official heat alert as extreme conditions persist. The settlement window for this weather market closes at noon UTC on 12 July 2026, capturing the peak daily temperature recorded at the Adolfo Suárez Madrid-Barajas Airport Station.

Historical data from early July 2026 shows the region already hitting record-breaking highs, with daytime temperatures reaching 42°C on 5 and 6 July, while the broader first half of the year marked Spain’s hottest start since records began [2][9]. July forecasts for 2026 typically show daily highs between 31°C and 39°C, yet the current heatwave has consistently exceeded these norms, suggesting the 0% YES probability for lower ranges may be misaligned with the active meteorological trend [1][2].

Traders should monitor real-time updates from Wunderground and Euronews for the specific 12 July reading, as the heatwave is expected to remain above 40°C until at least 7 July with authorities warning of dangerous afternoon heat [2][6]. The market leans heavily on the continuation of this extreme weather pattern, with no scheduled political debates or campaign disclosures expected to influence the outcome, making the sole catalyst the atmospheric conditions dominating the Iberian Peninsula [4][6].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Madrid on July 12? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.