Highest temperature in Chongqing on August 20?

Platform comparison

Market context

Chongqing will experience peak summer heat on 20 August 2026, with the settlement hinging on the highest temperature recorded at Jiangbei International Airport Station throughout that calendar day. The market resolves using Weather Underground's Daily Observations table rather than the summary high-low figures, a distinction that matters when intraday spikes occur outside standard reporting windows. Current crowd pricing at 0% YES suggests either extreme confidence in a specific temperature band or insufficient liquidity to establish meaningful odds across the full range of possible outcomes.

Chongqing's August climate is remarkably consistent. Historical data from the past decade shows daily highs clustering between 32–37°C during mid-August, with extreme readings above 40°C occurring roughly once every three to five years during exceptional heat events. The 2022 heatwave pushed temperatures to 40.9°C in early September; similar atmospheric patterns would be required to breach the upper thresholds this market likely prices. Traders should examine long-range forecasts from China Meteorological Administration releases, typically published 10–14 days ahead, which carry material weight for Asian weather markets on-chain.

The settlement window closes at 12:00 UTC on 20 August 2026, creating a hard deadline for USDC payouts once Weather Underground data confirms the daily maximum. Monitoring tropical cyclone activity across the South China Sea in mid-August becomes critical, as any system tracking toward the Yangtze River valley would suppress temperatures significantly. Funding rate movements on crypto derivatives markets often correlate with macro risk-off sentiment that precedes severe weather systems; sustained elevated rates might signal trader positioning ahead of potential weather disruption.

Methodology

This page reads Highest temperature in Chongqing on August 20? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

UK Frequently Asked Questions

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UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

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