Highest temperature in Shanghai on August 12?

Platform comparison

Market context

Shanghai's highest temperature on 12 August 2026 will be measured at Pudong International Airport Station and resolved against the Daily Observations table on Weather Underground. The settlement window closes at midday UTC on that date, meaning traders will have limited time after the observation period concludes to assess final readings.

August temperatures in Shanghai historically peak in the 32–35°C range, with occasional extremes reaching 36–37°C during particularly intense heat waves. The city's subtropical climate produces consistent summer heat, though inter-annual variation exists. The 0% crowd probability suggests traders currently expect the market's temperature brackets to exclude the actual recorded high, or that insufficient liquidity exists to price realistic outcomes. Historical August data from Pudong station provides the baseline: traders should cross-reference multi-year records from the China Meteorological Administration or Weather Underground's historical archives to calibrate expectations against the specific resolution methodology outlined.

The primary catalyst is the actual weather system affecting the Yangtze River Delta region in early August 2026. Tropical cyclone activity, monsoon patterns, and high-pressure systems will determine whether temperatures exceed seasonal norms. Traders should monitor China's meteorological forecasts and any typhoon alerts issued by the China Meteorological Administration in the week preceding 12 August. The resolution source's reliance on Daily Observations rather than summary figures introduces a technical dependency—discrepancies between the two tables have occurred historically, making familiarity with Weather Underground's data structure material to accurate settlement assessment.

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 12? 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

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

UK Frequently Asked Questions

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.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

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.