Highest temperature in Madrid on August 16?

Platform comparison

Market context

The market seeks to identify the highest temperature recorded at Madrid-Barajas Airport on 16 August 2026, with resolution determined by the Daily Observations table on Weather Underground rather than summary figures. The 0% crowd probability suggests traders expect temperatures to fall outside the upper range being priced, though the specific threshold bands are not disclosed in available market documentation.

Madrid's August climate presents consistent heat patterns. Historical data from the past decade shows mid-August temperatures at Barajas typically ranging between 28–36°C, with extremes occasionally reaching 38–40°C during heat waves. The 2022 European heat event saw Madrid record 40.5°C on 13 August; conversely, cooler August periods have produced daily highs near 26–27°C. The current crowd assessment of zero probability on the YES outcome suggests either an exceptionally high temperature threshold or trader confidence in below-average August conditions for 2026.

Traders monitoring this market should track European weather forecasting models as mid-August 2026 approaches, particularly outputs from ECMWF and national meteorological services. Atmospheric pressure systems and potential heat dome formation across the Iberian Peninsula typically become clearer 10–14 days before the resolution date. Any significant deviation from seasonal norms—whether driven by North African high-pressure systems or Atlantic weather patterns—would shift probability assessments. The specific resolution methodology requiring Daily Observations data rather than summary highs means traders should verify Weather Underground's reporting practices at Barajas, as instrumental placement and measurement timing can affect recorded values.

Methodology

Sports-specific comparison page for Highest temperature in Madrid on August 16?. 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.

UK Frequently Asked Questions

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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.