Highest temperature in Shenzhen on August 1?

Platform comparison

Market context

Shenzhen’s early-August weather is usually hot, humid and prone to showers, so the relevant question is whether the city reaches an outright daily peak above its typical low-30s Celsius range rather than whether it merely stays warm. Seasonal guides put Shenzhen’s August average high around 31-32°C, with some day-by-day August forecasts already clustering near 32-36°C, which makes the market’s 0% YES implication look anchored to an unusually narrow reading of the settlement band rather than to the climatology itself.[2][12][13]

Historical comparisons point in the same direction: Shenzhen’s August records can run well above the mean, with one source citing a monthly record high of 103°F (about 39.4°C), while other climate references describe frequent tropical heat and heavy summer rainfall through May to September.[6][14][18] For traders, the key catalyst is not a political-style announcement but the actual Shenzhen Bao’an Airport observation on the day, since the market resolves off the highest temperature recorded there on 1 August; with the settlement window closing at noon UTC, the most important dependency is whether the local daytime heat spike lands before the cutoff, especially if cloud cover, rain bands or typhoon-related disruptions suppress the afternoon high.[2][18][19]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Shenzhen on August 1? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.

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.

FAQ

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.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.