Pronóstico: Highest temperature in Shanghai on July 2?

Platform comparison

Market context

Shanghai’s July heat is relentless, with daytime highs routinely exceeding 30°C and extreme peaks reaching 40°C. On Polymarket today, the contract for the highest temperature at Shanghai Pudong International Airport on 2 July 2026 shows a 0% probability for any outcome above 35°C, implying the crowd expects a cooler-than-average day. This stark pricing contrasts sharply with historical norms, where July 2 has frequently recorded highs between 32°C and 38°C.

Historical data frames this probability as unusually conservative. In past years, Shanghai’s average July high sits at 32.5°C, with extreme days hitting 40°C[2][6]. Even the lowest-temperature market for the same date currently prices 24°C at 98%, suggesting the broader climate is warm but not extreme[1]. The 0% YES pricing here likely reflects a specific, unannounced forecast rather than a genuine expectation of cool weather, making it a potential mispricing for traders who understand regional patterns.

Traders should monitor the Shanghai Meteorological Bureau’s 72-hour forecast and any incoming typhoon advisories, which can suppress temperatures significantly. A recent report from AccuWeather notes July 2026 highs ranging 83°F–94°F (28.3°C–34.4°C), with overnight lows 76°F–82°F[4]. If a typhoon approaches the Yangtze Delta within the next week, temperatures could drop below 30°C, validating the current pricing. Conversely, clear skies and high-pressure systems will likely push highs above 35°C, rendering the 0% YES position a high-risk bet. Conditional tokens on Polygon, settled in USDC, will resolve based on Wunderground’s official daily max[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Pronóstico: Highest temperature in Shanghai on July 2? 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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.