Highest temperature in Beijing on July 24?

Platform comparison

Market context

Beijing’s highest temperature on 24 July will be set by the daily maximum at Beijing Capital International Airport Station, so the key question is whether the afternoon heat peaks in the low, mid or upper 30s Celsius rather than whether it stays merely warm. July is Beijing’s hottest month, with typical daytime highs around 31°C and occasional readings up to about 38-40°C, while rain and thunderstorms can cap the maximum if cloud cover develops early.[2][3]

The current 0% YES is more a reflection of market structure than of meteorology. On Polymarket, this event is shown as a multi-outcome book with prices expressed as implied probabilities, while rival venues usually present the same uncertainty differently: Kalshi quotes contract prices in cents, and exchange-style books such as Betfair and Smarkets show decimal odds, which can make the same view look less extreme once fees are included. Recent comparable Beijing temperature markets have already resolved in the mid-30s Celsius, including a 34°C close on 16 July, which is a useful reference point for how quickly summer highs can move when the forecast is hot and dry.[1][5]

For traders, the main catalysts are the local forecast trajectory for Thursday afternoon, any shift in precipitation timing, and whether a heat plume or convective cloud build-up arrives before the airport’s daily maximum is logged. The resolution source is Wunderground’s history page for Beijing Capital International Airport Station, so the relevant dependency is the station’s recorded high rather than citywide averages or a different Beijing observation point.[1] Because the settlement window ends at 12:00 UTC, the last meaningful price change will usually come from updated short-range forecasts, radar, and morning observations rather than late-evening commentary.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Beijing on July 24? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Robinhood Prediction Markets, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Robinhood Prediction Markets has a different geo footprint and routes to Polymarket's order book at 0% fees.