Highest temperature in Shenzhen on July 25?

Platform comparison

Market context

Shenzhen's peak temperature on 25 July 2026 will be measured at Bao'an International Airport Station and resolved against historical weather data from Wunderground. The market currently prices all temperature ranges at 0% YES, reflecting either technical settlement mechanics or minimal early liquidity on Polygon. Traders are pricing conditional tokens denominated in USDC, with resolution tied to a specific meteorological station rather than city-wide averages, which narrows the data source considerably.

July in Shenzhen typically sees daily highs between 32–35°C, with occasional peaks above 36°C during heat waves. The 2023 summer recorded several days exceeding 37°C in late July, whilst 2022 saw comparable conditions. Bao'an Airport's coastal location near the Pearl River Delta means maritime influence can moderate temperatures relative to inland districts, though urban heat island effects remain pronounced. Historical volatility suggests the range between 33–37°C captures most outcomes, though extreme heat events pushing above 38°C occur roughly once per decade during this period.

Traders should monitor tropical cyclone activity in the Western Pacific during early-to-mid July 2026, as storm systems can suppress temperatures significantly or, conversely, create pre-frontal heat spikes. China's meteorological authority typically issues heat warnings 3–5 days in advance, providing directional signals. El Niño or La Niña conditions established by mid-2026 will influence regional atmospheric patterns. The settlement window closes at 12:00 UTC on 25 July, requiring resolution within hours of the final daily reading, so any late-day weather shifts after local midnight could affect which range ultimately settles.

Methodology

This page reviews Highest temperature in Shenzhen on July 25? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.