Highest temperature in London on August 5?

Platform comparison

Market context

London’s afternoon high on 5 August is being forecast in the mid-20s Celsius, with several daily models clustering around 24.3°C to 25.7°C and a broadly similar view of partly cloudy or sunny conditions. That places the current 0% YES price well below the sort of outcome implied by the forecast stack, although the market settles on the highest temperature recorded at London City Airport Station, not a city-wide average.[1][3][4]

For context, early August in London usually sits in a comfortable summer band rather than an extreme-heat regime, so readings in the low-to-mid 20s are far more common than very hot spikes. Recent comparative forecasts also point to only modest variation across providers, with daily highs generally near 25°C and light-to-breezy winds rather than a setup that would typically drive a sharp overshoot at the airport station.[2][3][5][11]

The key catalysts now are the same-day observational updates and any shift in cloud cover, wind, or precipitation timing around the midday-to-afternoon warming window before the 12:00Z settlement cutoff. Earlier private forecast guidance has already leaned dry or low-rain, but if convection develops later than expected or the marine layer lingers, the recorded maximum could finish a degree or two below the consensus; traders should watch the London City Airport observation stream and any refreshed local forecast amendments through the morning.[1][3][13]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in London on August 5?. 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.

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.