Highest temperature in Shenzhen on August 6?

Platform comparison

Market context

Shenzhen’s airport temperature on 6 August will be set by the day’s **highest reading** at Shenzhen Bao’an International Airport Station, so the practical question for traders is whether the afternoon peak clears the low-30s Celsius bands that usually anchor August pricing. Historical guides put Shenzhen’s August average high around **32°C**, with typical lows near **26–27°C**, while live forecast pages are already showing daytime highs in the **low to mid-30s** for the city, which is consistent with a market that should usually trade towards the warmer bins rather than the cooler ones.[2][3][13][19]

For a programmatic workflow, the clean approach is to treat Wunderground’s daily history page as the settlement feed, poll the station page near and after the observation window, and map the reported maximum into the market’s resolution intervals. That matters because Shenzhen’s August weather is not just hot but volatile: humidity is high, rainfall is frequent, and tropical systems can suppress the max temperature on some days or, if clouds clear late, allow a sharp late-day spike. Travel and weather references also flag August as part of the wet season, with a notable typhoon risk in southern China.[13][18][20]

For catalysts, the main inputs are same-day forecast updates, rain timing, and any official tropical weather advisories affecting Guangdong or nearby coastal waters. The Hong Kong Observatory’s regional outlook for Shenzhen is already pointing to **fine to cloudy** conditions with a forecast maximum of **34°C**, which is the kind of signal that can move a temperature market even before the final station observation is published.[1][3] Traders using bots or conditional orders would usually watch for forecast downgrades after overnight model runs, then reprice if cloud cover or rain bands shift the expected daily peak away from the mid-30s.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Shenzhen on August 6? 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

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

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.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.