Highest temperature in Beijing on August 8?

Platform comparison

Market context

Beijing’s temperature on 8 August will be judged off the highest reading at Beijing Capital International Airport Station, with the market settling into a Celsius range rather than a single point estimate. The crowd’s 0% YES price implies the contract is being treated as effectively inaccessible or already priced as a near-certain miss against the target range, while the broader weather backdrop still points to a hot midsummer day: Beijing’s August average high is around 31°C, and historical 8 August averages sit in the low 30s Celsius, with occasional spikes several degrees above that.[3][5][15]

That makes the relevant comparables the city’s normal August heat profile and the day’s realised airport observations, not the headline daily high card alone. Recent Beijing history shows highs in the high 20s to mid-30s Celsius are common in August, with 8 August averages around 31°C and a historical extreme above 38°C in some guides, so the market should be read as a range test rather than a binary hot/not-hot call.[5][7][13] I do not have sportsbook lines for this contract, but the contrast is clear: prediction markets are saying essentially no chance of the chosen temperature band, whereas climatological comparables suggest Beijing can still deliver a meaningful daytime peak on this date.[3][15]

The main catalysts are the live Weather Underground observation updates from the airport station and the timing of the day’s warmest hour, which in Beijing typically arrives around early-to-mid afternoon rather than at dawn. At 12:00 UTC, Beijing is already into the local afternoon, so the key trader watch is whether the airport station keeps climbing through the early afternoon observations or tops out before the settlement window closes at 12:00 UTC. Weather Underground’s history page for Beijing is the listed resolution source, so any divergence between its daily observations table and summary display matters only insofar as the table governs settlement.[17]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.

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 Best Prediction Markets. 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.

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 Best Prediction Markets 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.