Highest temperature in London on August 1?

Platform comparison

Market context

London City Airport’s peak temperature on 1 August will come down to whether the day tops out in the mid-20s or gets a little hotter than forecast. The market is currently pricing a **0% YES** chance, which is far more sceptical than the broader weather setup implied by the available forecasts and comparable London summer outcomes, so the key question is not whether it gets warm, but whether the airport station edges into the range that would settle the contract. The market description ties resolution to the highest reading at London City Airport Station, so even a city-wide warm spell does not help unless the specific station prints the relevant number.

The most useful comparison is with recent London highs in the mid-to-upper 20s rather than with long-run August averages. A recent London reading of **26.6°C at Kew Gardens** was reported as the city’s hottest day of 2026 so far, showing that London has already been capable of reaching the band that matters here.[4] Broader August norms for London sit lower, around the low-20s, which means a 26°C-plus outcome usually needs a decent sunshine and light-wind setup rather than an ordinary summer day.[3][9] Against that backdrop, a zero-price implies traders are assuming either a miss on the forecasted warmth or that the airport station will underperform the wider city.

The main catalysts are the final forecast updates and any late changes to cloud cover, wind, or sea-breeze influence around the Thames corridor, because those can move London City Airport away from a marginal 25–26°C outcome. One recent weather write-up described August 1 as sunny to mildly warm with highs around **26°C**, which sits close to the market’s likely decision zone and leaves little room for error if conditions ease even slightly.[12] Because the settlement source is a single station reading, the exact timing of the day’s warmest hour and any post-event revisions in the published history matter more than general London forecasts or wider regional headlines.[1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Highest temperature in London on August 1?. 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.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

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.