Highest temperature in Chengdu on July 31?

Platform comparison

Market context

Chengdu’s 31 July high will be set by the hottest reading at Chengdu Shuangliu International Airport Station, so the market is really about how warm the afternoon peaks before showers or cloud limit the top end. The live forecast picture is already pointing to a warm day rather than a cool one: current third-party forecasts cluster around the low-to-mid 30s Celsius, with highs of 33°C from yr.no and 35°C from the Met Office, while some local weather services push the ceiling closer to 37–38°C.[2][10][12][8]

That makes a zero-priced YES look anchored to the possibility that the market is expecting a materially lower airport high than the broader forecast range, which is hard to square with Chengdu’s late-July climate. Comparable July guidance for the city commonly puts daytime highs around 30–35°C, with humid and rainy conditions but occasional spikes into the high 30s.[16][19][17] For a terminal reading at airport station level, the key question is not whether the day is warm, but whether cloud cover and rainfall suppress the maximum enough to keep it below the forecast consensus.

The main catalyst to watch is the day’s actual forecast evolution, especially any upgraded thunderstorm risk or earlier rainfall that would cap the afternoon maximum. The Met Office already flags rain chances and advises shade during the hottest hours, while AccuWeather and Ventusky both show temperatures reaching the mid-to-high 30s around midday and early afternoon before easing later.[10][14][12] In practice, traders should focus on whether forecast models keep the peak in the 33–37°C band or whether a wetter, cloudier revision emerges that would justify a lower settlement temperature.[10][12][2]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Chengdu on July 31? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Election Predictions UK provide a 0%-fee route into the same order book.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Election Predictions UK route into the same order book at 0% fees.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.