Highest temperature in Shanghai on July 23?

Platform comparison

Market context

Shanghai’s daytime heat in late July is usually well into the low 30s Celsius, with typical July highs around 31°C and humid, muggy conditions common in the city. That makes sub-35°C outcomes relatively unusual but not impossible, while 35–36°C sits closer to the upper end of the normal Shanghai July range.[2]

That is reflected in the market’s shape: 36°C is currently the frontrunner at 40%, with 35°C next at 35%, which implies traders are leaning towards a hot but not extreme day rather than a cooler one.[1] For context, Shanghai’s July climate supports plenty of warm days, but the spread between the two leading outcomes shows how sensitive this market is to a single degree either side of the local heat peak.[2]

The key catalysts are the developing forecast for Pudong, especially the combination of clear-sky heating, humidity, wind direction and any rain bands that could cap the afternoon maximum before the settlement window closes at noon UTC. The resolution is based specifically on the highest reading recorded at Shanghai Pudong International Airport Station on Wunderground, so late-morning updates and any change in the airport’s observed peak matter more than citywide averages or inland forecasts.

Sources: 1 · 2

Methodology

Football-specific comparison page for Highest temperature in Shanghai on July 23?. 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.

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.