Highest temperature in Shenzhen on August 15?

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Market context

On 15 August 2026, the highest temperature recorded at Shenzhen Bao'an International Airport Station will determine the settlement outcome. The market will reference the Daily Observations table on Weather Underground rather than summary figures, establishing a precise measurement standard. Settlement occurs in USDC against the specific temperature range that captures the daily high.

Shenzhen's August climate is consistently hot and humid, with historical highs typically ranging between 32–35°C. Over the past decade, mid-August temperatures at Bao'an have rarely exceeded 36°C, though extreme heat events pushing toward 37–38°C occur roughly once every three to four years during particularly intense summer patterns. The 0% crowd probability suggests traders are pricing in either a cooler-than-normal August or confidence in sub-32°C outcomes, which would represent a significant departure from seasonal norms and warrant scrutiny of long-range forecasting models.

Key variables include the strength of the western Pacific subtropical high-pressure system and any tropical cyclone activity in the South China Sea during mid-August 2026. The China Meteorological Administration typically issues extended forecasts by late July; traders should monitor those releases alongside sea-surface temperature anomalies reported by NOAA. Any tropical system tracking toward the region would suppress temperatures through cloud cover and precipitation, whilst a dominant high-pressure ridge would amplify heat. Historical precedent suggests the 34–35°C range captures the modal outcome, making extreme tails less probable but not negligible given climate variability.

Methodology

This page reads Highest temperature in Shenzhen on August 15? on-chain. Polymarket's quote comes directly from the Polygon order book — the only comparable venue with on-chain settlement. Kalshi (USD, off-chain), Betfair (GBP/EUR, off-chain) and Manifold (play-money) are listed alongside for venue context. Every CTA routes to BTC Prediction, which mirrors the Polymarket order book directly.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

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