Highest temperature in Beijing on July 16?

Platform comparison

Market context

Beijing’s highest temperature on 16 July 2026 will be recorded at the Beijing Capital International Airport Station, with the market resolving to the Celsius range containing that peak. Historical July data shows the city routinely hits 31°C on average, but two-thirds of days exceed this, with spikes to 35°C common and a 2024 record of 37°C [2][3]. The current crowd-implied probability of 0% YES for any specific outcome appears misaligned with these patterns, as Polymarket’s frontrunner is 33°C at 39%, followed by 34°C at 27%, suggesting the market expects a hot day well above the monthly average [1].

Traders should monitor Beijing’s daily weather forecasts and real-time Wunderground updates, the official resolution source, as afternoon thunderstorms—frequent in July’s wet season—could suppress peak temperatures [2]. While no specific announcement is pending, the monsoon-driven rainfall pattern means cloud cover and precipitation remain key variables; a dry, clear day would likely push temperatures toward the 33–35°C range. Platform differences matter here: Polymarket displays implied probabilities (e.g., 39% for 33°C), whereas Kalshi, Betfair, and Smarkets typically use decimal odds, altering how traders assess risk and fee structures vary significantly across these books, with KYC requirements also diverging sharply [1].

Sources: 1 · 2 · 3

Methodology

We read Highest temperature in Beijing on July 16? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

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

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.

What about Smarkets as an alternative?

Smarkets is a UK betting exchange with a lower default commission (2%) than Betfair. Liquidity on political markets is below Polymarket, comparable to Kalshi. Geo-blocked in many jurisdictions.

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.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.