Highest temperature in Shenzhen on July 16?

Platform comparison

Market context

Shenzhen will experience its peak daytime heat on 16 July 2026 at the Bao’an International Airport station, with the market betting on which Celsius bracket captures that maximum. Today’s current reading shows 88°F (31°C) under sunny skies with a RealFeel of 104°F, indicating the city is already in a high-heat phase typical of mid-summer in Guangdong [2].

Historically, Shenzhen’s July highs at this station cluster between 29°C and 32°C, with 29°C and 30°C currently the frontrunners in the market at 38% and 29% respectively [1]. The crowd-implied 0% probability for any outcome suggests a data lag or mispricing rather than a genuine expectation of impossible temperatures, as comparable years show no deviation below 28°C in July. Traders evaluating this programmatically should script a Wunderground fetcher to poll the daily history endpoint for ZGSZ, comparing real-time station data against the resolution source to arbitrate the gap [1].

Key catalysts include the official 12:00 UTC settlement cutoff and any sudden shifts in the Pearl River humidity or cloud cover that could suppress peak temperatures. Watch the UV index, currently at 11, and wind speeds of 20 mph, as sustained high UV with low wind often pushes maxima toward the 30–31°C range [2]. No official meteorological announcements are scheduled before settlement, so the dependency remains purely on the automated Wunderground feed for the Bao’an station.

Sources: 1 · 2 · 3

Methodology

We track Highest temperature in Shenzhen on July 16? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

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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.

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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.