Highest temperature in Wuhan on August 20?

Platform comparison

Market context

On 20 August 2026, Wuhan will experience peak summer heat, with the highest temperature recorded at Tianhe International Airport Station determining the settlement outcome. The market currently reflects zero probability across all temperature ranges, suggesting either insufficient trader participation or expectation of extreme heat exceeding available brackets.

Wuhan's August climate is consistently hot and humid, with historical daily highs typically ranging between 32–35°C. The city's location in the Yangtze River valley creates a "furnace effect" during summer months. Over the past decade, August temperatures at Tianhe have rarely exceeded 37°C on individual days, though the 2013 heat wave saw peaks near 40°C. The current zero probability reading appears disconnected from seasonal norms, indicating the market may be awaiting trader calibration against established temperature bands rather than reflecting genuine uncertainty about whether heat will occur.

Traders should monitor China Meteorological Administration forecasts released in early August 2026, which typically provide 10-day outlooks with reasonable accuracy for regional temperature patterns. The resolution hinges specifically on Weather Underground's Daily Observations table from Tianhe station, not summary high-low figures, making data source verification critical at settlement. Any significant atmospheric systems—monsoon patterns, high-pressure systems, or tropical cyclone activity in the region—could shift outcomes, though such events would be visible in meteorological bulletins weeks in advance. The settlement window closes at midday UTC on 20 August, allowing only morning observations to influence final resolution.

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 Wuhan on August 20? 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

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.