Highest temperature in Shenzhen on July 13?

Platform comparison

Market context

Shenzhen is experiencing peak summer heat on 13 July 2026, with the Bao'an International Airport station tracking maximums near 33–34°C under cloudy skies and light rain expected later in the day[3][4]. The settlement hinges on the single highest recorded degree Celsius at this specific station, sourced directly from Wunderground’s daily history for ZGSZ.

Historically, July is the hottest month for Shenzhen Bao'an, averaging a high of 89°F (31.7°C), though record peaks frequently breach 34°C during unbroken heatwaves[1]. The current 0% crowd-implied probability for a “YES” outcome suggests the market expects the temperature to fall below the specific threshold in question, likely aligning with the 33°C outcome which holds 40% probability on Polymarket[8]. Programmatic traders should script bots to poll Wunderground’s hourly API at 15-minute intervals, flagging any deviation from the forecasted 33°C maximum as a potential arbitrage signal before the 12:00 UTC settlement cutoff.

Key catalysts include the timing of afternoon thunderstorms, which could suppress temperatures below 32°C, or a sudden drop in cloud cover that might push readings to 35°C. Current forecasts indicate heavy rain and clouds for Monday 13 July, potentially capping the maximum at 32°C[7]. Traders monitoring this market must watch real-time updates from AccuWeather or Yr.no for sudden shifts in the RealFeel® index or wind speeds, as a drop in humidity could rapidly alter the final resolution value[2][7].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shenzhen on July 13? 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 Polymarket Bot UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.