Highest temperature in Chengdu on July 13?

Platform comparison

Market context

Chengdu is currently experiencing peak summer heat, with July historically delivering fuggy conditions where temperatures frequently spike to 38°C. The Polymarket contract for the highest temperature on 13 July 2026 at the Shuangliu International Airport Station shows the crowd-implied probability for a specific outcome sitting at 0% YES, despite the leading market outcome being 38°C with a 34% probability. Traders on the Polygon network are using USDC to bet on conditional tokens, pricing the likelihood of extreme heat against the settlement window closing at 12:00 UTC tomorrow.

Historical climatology for Chengdu in July centres on 30–32°C averages, yet occasional spikes reach 35°C or higher, with records showing a peak of 38.6°C in August 2022. The current market pricing, which favours 38°C over 37°C at 28%, aligns with recent data indicating China experienced its hottest July on record since 1961, suggesting a baseline shift towards higher extremes. This context frames the 0% probability for the specific binary outcome as a potential mispricing if the day follows the pattern of recent record-breaking heatwaves.

Traders should monitor real-time updates from Wunderground, the designated resolution source, specifically checking the hourly logs for the Shuangliu station as the day progresses. Any official announcements regarding heatwave warnings from local meteorological authorities could act as immediate catalysts, potentially shifting liquidity towards the higher temperature brackets. With the settlement deadline imminent, the on-chain mechanics will lock in the final USDC payouts based strictly on the verified maximum temperature recorded before the 12:00 UTC cutoff.

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Methodology

This page reviews Highest temperature in Chengdu on July 13? 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 UK, 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 Kalshi UK. 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.

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 UK 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.