Pronóstico: Highest temperature in Shanghai on July 1?

Platform comparison

Market context

The underlying real-world event is the highest temperature recorded on 1 July 2026 at Shanghai Pudong International Airport, measured in degrees Celsius. Current ensemble forecasts for Shanghai around that date point to daytime maxima clustered near 27–28°C, which aligns with the market-implied odds that favour the 26°C outcome at 77% probability[1][2]. Historical climate data for July at Pudong shows daily highs typically rising from 84°F to 88°F, rarely falling below 75°F or exceeding 95°F, with summer highs regularly exceeding 30°C during sunny spells[4][6]. This suggests the current 0% probability assigned to the “YES” outcome (likely meaning a specific high threshold) is consistent with typical seasonal patterns, where extreme heat above 35°C is uncommon but not impossible.

Traders should monitor the official Wunderground daily record for ZSPD on 1 July, as this is the definitive resolution source[1]. Key catalysts include any sudden shifts in the East South Easterly wind pattern or humidity levels, which BBC Weather currently forecasts at 84% for 1 July, potentially suppressing peak temperatures[3]. Additionally, watch for any local weather announcements from the Shanghai Meteorological Bureau regarding heatwaves or cloud cover, as these can materially alter the day’s maximum. While no recent news source explicitly predicts a heat anomaly, the stability of pressure at 1011mb and steady wind speeds suggest a predictable, moderate-heat day rather than an extreme event[3]. On-chain mechanics remain straightforward: USDC settlements on Polygon via conditional tokens ensure transparent, automated resolution once the Wunderground data is published.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Pronóstico: Highest temperature in Shanghai on July 1? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Qué Es, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Polymarket Qué Es. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.