Highest temperature in Shanghai on July 14?

Platform comparison

Market context

Shanghai's highest temperature on 14 July 2026 will be recorded at Pudong International Airport Station and resolved via Wunderground historical data. July in Shanghai typically sees daily highs between 32–35°C, though extreme heat events can push readings above 37°C. The 0% crowd probability across major platforms suggests either a technical settlement issue or that traders are avoiding this category entirely, which is unusual for a straightforward weather observation market where historical data provides a clear baseline.

Shanghai's climate record shows July as consistently hot but not anomalous by regional standards. The city's 30-year average high for mid-July sits around 32–33°C, with readings exceeding 36°C occurring roughly once per decade during that month. The current zero probability across Polymarket, Kalshi, and Betfair indicates minimal trading volume rather than genuine conviction that no temperature will register. Smarkets and other decimal-odds platforms show similarly thin liquidity, suggesting the market may lack sufficient trader participation to establish meaningful price discovery.

Traders monitoring this market should track China Meteorological Administration forecasts released in early July 2026, which typically provide 10-day outlooks with reasonable accuracy for Shanghai. The settlement window closes at midday UTC on 14 July, creating a tight window between final morning temperatures and resolution. Kalshi's stricter KYC requirements may limit participation compared to Polymarket's broader access, potentially explaining why even basic weather markets show sparse activity across platforms. The absence of competing resolution sources—Wunderground is specified exclusively—removes ambiguity but also means no arbitrage opportunity exists between books.

Methodology

This page compares Highest temperature in Shanghai on July 14? 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

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

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.

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.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Robinhood Prediction Markets 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.