Highest temperature in Shenzhen on August 10?

Platform comparison

Market context

Shenzhen’s airport is the real-world event here, and the market is effectively asking which Celsius bucket will contain the day’s top reading from the Weather Underground daily observations table. At a 0% YES crowd price, the field is treating the obvious summer-heat outcome as massively underpriced or, more likely, the market has yet to re-rate against the day’s live forecast evidence; in handicapper terms, the favourite is the mid-30s Celsius band, with the underdog being a materially cooler outcome only if cloud, rain or coastal flow caps the afternoon spike. Recent forecast pages point to a very hot, humid day around 35–36°C, which sits comfortably inside the upper-end consensus rather than a surprise scenario.[10][12][17]

For historical framing, Shenzhen in August is normally a high-30s-feels-like, low- to mid-30s-actual affair, with August climatology and recent daily histories both showing that 33–36°C is a regular range rather than an outlier.[3][8][15] Comparable recent readings near the same station have already reached 98–99°F, which is roughly 37–37.2°C, so the value spot is less about a heatwave shock and more about whether the day prints just above or just below the market’s leading bucket.[1][2][5] That makes the contrarian angle a cooler-than-models finish only if late cloud cover or showers arrive early enough to suppress the peak.[12][14]

The main catalysts are the day’s live hourly observations and any short-term forecast shifts from the weather services traders are watching, especially if showers or thicker cloud move the ceiling down in the late morning or early afternoon.[12][17] AccuWeather’s Shenzhen forecast currently shows a hot day with a high near 97°F, while timeanddate’s hourly outlook is similar, though with some late-day shower risk.[12][17] Because the resolution depends on the Weather Underground daily observations table rather than the summary high/low, the key trading risk is an intraday spike versus a flattened profile; if the first post-midnight UTC datapoints for the next day appear, they also matter for final settlement timing under the market rules.[5][9]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shenzhen on August 10? 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 Who Will Win 2026, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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 Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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 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.