Highest temperature in Shenzhen on July 21?

Platform comparison

Market context

Shenzhen will experience peak summer heat on 21 July 2026, with the highest temperature recorded at Bao'an International Airport Station determining the settlement outcome. July represents the height of Shenzhen's monsoon season, when subtropical air masses and high humidity create consistently elevated daytime temperatures across the Pearl River Delta region.

Historical records from Wunderground show Shenzhen's July temperatures typically peak between 32°C and 35°C, with occasional readings exceeding 36°C during particularly intense heat waves. The 0% crowd probability suggests traders are either uncertain about the specific temperature brackets available or expect the market to resolve outside currently listed ranges. Comparable July days at the airport station over the past decade provide the most reliable baseline; 2015 and 2019 saw peaks of 34.5°C and 35.2°C respectively, whilst 2023 recorded 33.8°C on a similar date. These historical patterns indicate the market should centre on temperature ranges spanning 33–36°C.

Traders should monitor real-time weather forecasting from the China Meteorological Administration and Wunderground's extended outlook as July approaches, particularly tracking any tropical cyclone activity in the South China Sea that could suppress temperatures through cloud cover and rainfall. Atmospheric pressure systems and the strength of the East Asian summer monsoon in early July will prove decisive. The settlement window closes at midday UTC on 21 July, meaning traders have only the morning's preliminary data before final resolution, making early-season weather pattern analysis critical for positioning.

Methodology

This page tracks Highest temperature in Shenzhen on July 21? 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 Election Predictions UK provide a 0%-fee route into the same order book.

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.

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.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

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.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

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.