Highest temperature in London on August 20?

Platform comparison

Market context

The market concerns the highest temperature recorded at London City Airport on 20 August 2026, with settlement based on Weather Underground's Daily Observations table rather than summary figures. The 0% crowd probability suggests traders expect temperatures to fall outside all available resolution ranges, though this reflects uncertainty about which specific bracket will contain the day's peak rather than confidence in any particular outcome.

August temperatures at London City Airport typically range from 18°C to 24°C, with historical highs occasionally reaching 26–28°C during warm spells. The Met Office's 30-year climate normals show mid-August averages around 20–21°C, though the station has recorded 29°C on rare occasions during heat waves. The current probability distribution may reflect difficulty in predicting 2026 conditions with precision, or concentration of bets in specific ranges rather than absence of trading interest across all brackets.

Traders should monitor seasonal forecasting updates from the Met Office in the months preceding August 2026, particularly any signals of anomalous warmth or cool patterns developing in the Atlantic. The resolution methodology's reliance on Weather Underground's specific Daily Observations table—rather than alternative sources or summary sections—creates a technical dependency worth verifying before settlement. Any planned maintenance or data gaps at the London City Airport station could affect availability of the primary resolution source.

Methodology

Sports-specific comparison page for Highest temperature in London on August 20?. 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

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 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.

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.

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.