Highest temperature in Madrid on August 9?

Platform comparison

Market context

Madrid is set for another very hot afternoon, but the market resolves on the *airport station* reading in Weather Underground’s daily observations, not the broader city forecast. The current crowd price of 0% for YES implies traders see the listed outcome bands as mispriced only if the airport peaks far beyond the forecast range, yet the public forecasts are tightly clustered around the high 30s Celsius, with the day expected to be sunny and dry.[1][3][10]

For context, Madrid’s August highs commonly sit in the low-to-mid 30s Celsius, and exceptional spikes do happen, but they usually require a strong heat setup rather than an average summer day.[11][13] The current pricing should be read against that climatology: a 36–37°C afternoon is hot by local standards, but still within the sort of range forecasters were already flagging for today, while the market’s settlement source is the airport’s actual maximum, which can differ slightly from central Madrid.[3][10][18]

The key catalysts are whether the heat materialises on schedule through the early and mid-afternoon, and whether any late-day clouds, wind shifts, or outflow boundaries cap the maximum before the 12:00Z settlement window closes. Aemet-linked reporting points to clear skies, a minimum near 24°C, and a maximum around 36°C, which would leave the decision resting on whether the airport briefly edges into the next bracket rather than on any overnight move.[10][7]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Madrid on August 9?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Can I bet on individual matches?

Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.