Highest temperature in Shanghai on August 16?

Platform comparison

Market context

Shanghai's highest temperature on 16 August 2026 will be measured at Pudong International Airport Station and resolved against the Daily Observations table on Weather Underground, with settlement occurring at midday UTC on that date. The market currently shows 0% implied probability, suggesting traders expect temperatures to fall outside the upper range being priced.

August is Shanghai's peak summer month, with historical daily highs typically ranging between 32–35°C. Data from the past decade shows that mid-August temperatures at Pudong rarely exceed 36°C, though heat waves have occasionally pushed readings to 37–38°C. The 0% probability reflects either extreme confidence in a specific temperature band or minimal trading activity; comparable weather markets on prediction platforms typically see meaningful probability mass distributed across multiple temperature ranges rather than complete concentration in one outcome.

Traders should monitor China Meteorological Administration forecasts released in the week preceding 16 August, as these provide the most reliable early signals for anomalous heat events. Tropical cyclone activity in the Western Pacific during early-to-mid August could suppress temperatures through increased cloud cover and rainfall, whilst high-pressure systems stalling over eastern China would favour above-average heat. The settlement mechanism's reliance on Weather Underground's Daily Observations table—rather than summary figures—means traders must verify the specific station's historical recording practices, as instrumental differences or calibration changes can affect which temperature range ultimately resolves.

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Shanghai on August 16? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

UK Frequently Asked Questions

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

Are UK election prediction markets available from the UK?

Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.