Highest temperature in London on August 2?

Platform comparison

Market context

The practical question is whether London City Airport’s late-summer daytime high on 2 August lands in the mid-20s Celsius or nudges a degree or two higher, because that is what will decide the settlement band. Met Office-linked forecast material in the market feed points to a daytime maximum of about 27°C for London under building high pressure, with light winds, increasing sunshine and a southerly air mass supporting daytime warming[1]. That setup makes a 26–27°C outcome more plausible than a cooler-than-average reading, but it still leaves room for small shifts if cloud cover arrives earlier or sea-breeze effects suppress the peak near the airport.

The current 0% YES pricing looks hard to reconcile with the forecast context unless traders are anchoring to a much cooler outcome or to the specific London City Airport station rather than central London. Comparable recent London readings have already shown how quickly the city can move into the high 20s: AccuWeather’s August outlook includes daily maxima around 27–28°C, and a separate weather summary for 2 August shows modelled highs clustered around 26.1°C to 28.5°C across providers[2][3]. For broader context, the Met Office said daily maximum temperatures across the UK were running 2.1°C above average at mid-season, even if season-to-date records were not being broken[12].

Traders should watch the final forecast updates, especially any change in cloud amount, wind direction or timing of sunshine, because those are the main short-window dependencies for the airport’s peak temperature. The market notes that revisions to temperatures within the settlement window count until the following day’s first datapoint is published, so late afternoon adjustments can still matter[1]. Recent UK coverage has also shown how quickly forecasters can revise London heat expectations, with national outlets reporting the capital could reach around 33°C in a separate August warm spell and the Met Office-linked press highlighting the year’s hottest day so far at Kew Gardens[15][17].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in London on August 2?. 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

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What's the difference between match odds and outright odds?

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