Highest temperature in Beijing on July 24?

Platform comparison

Market context

Beijing’s late-July heat is the real-world driver here, with the settlement tied to the highest temperature recorded at Beijing Capital International Airport rather than a citywide average. July is typically the hottest month in Beijing, and climatology pages put the average daytime high around **31°C**, with some years far above that when the heat builds under humid summer conditions.[2]

That context makes the market’s current **29°C** lead easier to read: it sits below the normal July peak, but still within the range that Beijing commonly reaches on a warm, cloudy or rainy day.[1][2] For comparison, Beijing has seen July extremes as high as **40°C** in recent years, so the upper outcomes remain plausible if conditions turn very hot.[2] In a weather market like this, the distribution usually matters more than any single forecast, and a 0% implied chance for the top bin would suggest traders think the airport is unlikely to post a genuinely exceptional afternoon high.

The main catalyst is the **day-of weather pattern** over the capital region: cloud cover, rainfall, and the timing of any afternoon convection will determine whether the airport station tops out in the high 20s or low 30s. July is Beijing’s rainiest month, with showers and thunderstorms often appearing from mid-month onwards, and those systems can cap the day’s maximum even when the broader seasonal backdrop is hot.[2] Traders are therefore leaning on short-range forecast updates and any shift in rainfall timing, rather than on longer-term seasonal heat alone.[2]

Sources: 1 · 2

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Beijing on July 24? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

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 Trump Prediction route into the same order book at 0% fees.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

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.