Highest temperature in Chengdu on July 25?

Platform comparison

Market context

Chengdu will record a daily high temperature on 25 July 2026, measured at Shuangliu International Airport Station. The settlement hinges on which temperature band that reading falls into, with resolution sourced from Wunderground's historical weather database. The current 0% implied probability across major platforms suggests either extreme confidence in a specific outcome or insufficient liquidity to establish meaningful odds.

Chengdu's July climate is consistently hot and humid. Historical data from the past decade shows daily highs in late July typically range between 28–35°C, with occasional peaks above 36°C during heat waves. The city experienced a 40.2°C reading in August 2022, though July temperatures rarely exceed 37°C. Comparing this market across platforms reveals structural differences: Polymarket displays decimal odds and charges 2% fees on both sides, whilst Kalshi uses American odds with a 2% maker/taker fee structure. Betfair's exchange format allows lay betting unavailable on fixed-odds platforms, potentially creating price discovery advantages for outlier temperature scenarios. Smarkets similarly offers lay options with a 2% commission. These mechanics matter when pricing tail-risk temperature bands—exchange platforms may show tighter spreads on extreme outcomes if traders actively hedge.

Traders should monitor China Meteorological Administration forecasts released in early July 2026, which typically project 10–15 day outlooks with reasonable accuracy. La Niña or El Niño patterns influence East Asian summer temperatures; any official alerts regarding heat waves in Sichuan Province would shift probabilities substantially. Wunderground's historical data feed occasionally shows minor discrepancies with official Chinese sources, though the platform's airport station readings are generally reliable for settlement purposes.

Methodology

This page compares Highest temperature in Chengdu on July 25? 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 Kalshi Alternative, 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

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.

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. Kalshi Alternative 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.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Kalshi Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.