Highest temperature in Shanghai on July 27?

Platform comparison

Market context

Shanghai’s airport high for 27 July will be set by the warmest reading at Pudong International Airport, so the key question is whether the day produces a routine mid-to-high-30s summer peak or a cooler, rain-affected outcome. The broader July climate profile points to a hot, humid pattern, with typical highs around 32°C and the possibility of temperatures above 35°C in summer, while late July also sits inside the city’s typhoon-sensitive period. [2][6]

That helps explain why a **0% YES** crowd price looks much lower than the climatology would suggest. Current public weather pages already show Shanghai in the low 30s to low 40s Fahrenheit equivalent overnight and, for the coming day, forecast daytime maxima in the **mid-to-high 30s Celsius** on some platforms, which is consistent with a market that would normally expect a qualifying high above several common contract bands if the heat holds. [1][3][4] Compared with that backdrop, analyst-style weather consensus looks materially more bullish on a high-temperature outcome than the market-implied price.

The main catalysts are the short-range forecast updates, especially any shift in cloud cover, rainfall timing, or thunderstorm risk that could cap the airport’s maximum reading before midday UTC settlement. Shanghai’s July rainfall is often concentrated in a wet, humid monsoon pattern, with around 12 rainy days in the month and a late-July typhoon risk that can abruptly cut highs, so traders will watch whether the airport stays under convective cloud or gets a dry, sun-heated window. [2][6] Because settlement is tied to the Pudong Airport station rather than the city as a whole, small local forecast changes near the airport matter more than broad Shanghai headlines.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shanghai on July 27? 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 Kalshi vs Polymarket, 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 Kalshi vs Polymarket. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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 Kalshi vs Polymarket trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.