Highest temperature in Shanghai on July 18?

Platform comparison

Market context

Shanghai's highest temperature on 18 July 2026 will be measured at Pudong International Airport Station and resolved against historical weather data. The settlement window closes at midday UTC on that date, capturing the full calendar day's temperature record in Shanghai's subtropical climate zone.

July represents peak summer in Shanghai, with average daily highs typically ranging between 32–34°C. Historical records from the China Meteorological Administration show that mid-July temperatures in the city frequently exceed 35°C, with extreme heat waves occasionally pushing readings above 38°C. The 0% crowd probability suggests traders are either awaiting clearer seasonal forecasting data or treating this as a calibration exercise given the eighteen-month lead time before resolution. Comparable July markets in other Asian cities have shown that extreme-heat outcomes (above 37°C) occur in roughly 15–25% of years, depending on regional monsoon patterns and El Niño conditions.

Traders should monitor long-range climate forecasts issued by the China Meteorological Administration and international seasonal outlooks from June 2026 onwards, which typically provide confidence intervals for summer temperature anomalies across East Asia. The Western Pacific subtropical high-pressure system's positioning in early July will be the primary driver of whether Shanghai experiences typical summer heat or an exceptional heatwave. Recent reporting from Xinhua News Agency and local Shanghai meteorological bulletins will provide updated seasonal expectations as the resolution date approaches, though current distance from the event date explains the minimal trading activity reflected in the crowd probability.

Methodology

This page tracks Highest temperature in Shanghai on July 18? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Election Predictions UK provide a 0%-fee route into the same order book.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

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 Election Predictions UK route into the same order book at 0% fees.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

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.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.