Highest temperature in Chengdu on August 3?

Platform comparison

Market context

Chengdu’s hottest reading on 3 August will be determined at the airport station, and the market is currently pricing an exceptionally low chance of a very warm outcome despite the city’s midsummer climatology. August is usually one of Chengdu’s hottest periods, with typical daytime highs around 30–32°C and occasional days above 35°C, so a zero-implied price looks more like a statement about current expectations than about the city’s normal seasonal baseline.[1][2][13][16]

Historical August comparisons suggest that the key question is not whether Chengdu can reach the low 30s, but whether it can push into the upper 30s at the airport site on a specific day. Long-run guides place August highs in a narrow band around 30°C, while forecast services for early August routinely show 33°C to 35°C days, which is enough to keep the upper temperature brackets live if conditions dry out and sunshine persists.[2][3][14] In other words, the market is leaning on the fact that Chengdu often runs hot and humid, but not every August day becomes extreme.

The main catalyst to watch is the day-specific forecast for Chengdu Shuangliu Airport, especially any late changes in cloud cover, rain, or a stronger-than-expected warm-up before the afternoon peak, since the settlement source is the recorded high for the full day rather than a single midday observation.[3][14] For traders, the relevant comparison is between broad August averages and the live short-range forecast: if the airport sees a sunnier, drier setup than expected, the probability of landing in a higher temperature band rises quickly; if showers persist, the ceiling on the day’s high is lower.[1][13][16]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Chengdu on August 3? 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.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

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.