توقع: Highest temperature in London on July 21?

Platform comparison

Market context

The highest temperature recorded at London City Airport on 21 July 2026 will determine which temperature band resolves this market. The 2% crowd probability suggests traders expect a notably cool day for late July in London, implying temperatures below the range thresholds being wagered on.

London's July climate typically produces daily highs between 20–24°C, with extremes rare but not unprecedented. The UK's highest temperature on record is 40.3°C (set in July 2022), though London itself has never reached such peaks. Historical July data from City Airport shows the station regularly records highs in the low-to-mid 20s; days exceeding 28°C occur roughly once per decade in the capital. The 2% probability reflects the statistical rarity of extreme heat rather than typical summer conditions.

Traders should monitor the Met Office's extended forecast as the settlement date approaches, particularly any warnings for heat waves or unusual pressure systems in late July 2026. Atlantic weather patterns and jet stream positioning in mid-summer typically determine whether continental heat reaches southern England or cooler maritime air dominates. The specific resolution source—Wunderground's historical data for London City Airport Station—will be the definitive measure, so familiarity with that station's typical readings versus central London observations matters for calibrating expectations around microclimatic variation.

Methodology

Football-specific comparison page for توقع: Highest temperature in London on July 21?. 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 (US-focused) or Manifold (play-money).

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.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.