Highest temperature in Shanghai on July 27?

Platform comparison

Market context

Shanghai’s heat on 27 July will be set by the day’s maximum at Shanghai Pudong International Airport, with the market resolving on the highest temperature recorded there in Celsius. The current crowd view is **0% YES**, which is most consistent with an event still far from settlement rather than a strong temperature call, especially since the relevant reading will not be final until the airport’s daily history page is updated after the observation window closes. [1][4]

July is Shanghai’s hottest and rainiest month, and comparable summer forecasts regularly put daytime highs in the low-to-mid 30s Celsius, with occasional hotter spikes when sunshine and humidity build through the afternoon. Current short-range forecasts for Shanghai are already pointing to a hot day, with one source showing a high of **35°C** and another suggesting **37°C**, which frames the market as leaning on the risk of a upper-30s print rather than a mild summer day. [3][4][5]

For traders, the main catalyst is the sequence of local weather forecasts between now and the settlement cut-off, especially any shift in cloud cover, rainfall timing, or heat advisories that would cap or amplify the afternoon high. The market should react most to official and near-term forecast updates rather than to political-style event timing, because the relevant dependency is purely meteorological: whether Shanghai Pudong Airport gets enough sustained heat and sun to push into the upper end of the forecast range. [1][5][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Shanghai on July 27? 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

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

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.

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.