Highest temperature in Madrid on July 24?

Platform comparison

Market context

Madrid’s late-July heat is the real-world event behind this market: it settles on the day’s maximum at Adolfo Suárez Madrid-Barajas Airport, not on a forecast or city centre reading. With the crowd still at **0% YES**, the implied view is that the market is pricing in either a very low threshold or an outcome that traders currently see as unlikely to clear, so the key question is whether the airport station logs an unusually hot afternoon by local standards.

The closest framing is historical heat in Spain, where extreme summer temperatures have repeatedly pushed July readings into the mid-40s Celsius in the south, including a reported 46°C in Morón de la Frontera on 24 July during a record-hot July for the country.[1] Madrid is typically cooler than inland Andalusia, but it is still vulnerable to sharp spikes when Iberian high-pressure systems lock in clear skies and dry air. For a temperature market like this, the relevant comparison is not the national record but whether Madrid’s airport can reach the upper end of its summer distribution on a single afternoon.

The main catalyst to watch is the short-range weather setup over central Spain: whether the forecast on 24 July points to an afternoon heat surge, or to cloud, wind, or a sea-breeze intrusion that caps the maximum. Traders will also be watching any updated advisories from Spain’s meteorological service and overnight model runs, because the settlement source is an observed reading at the airport rather than a general Madrid forecast. The market is therefore leaning most directly on the next 12–24 hours of temperature guidance, rather than on broader seasonal signals or political-style event schedules.

Sources: 1

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 July 24? 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

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.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

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.

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.