Highest temperature in Beijing on July 16?

Platform comparison

Market context

Beijing’s highest temperature on 16 July 2026 will be recorded at the Beijing Capital International Airport Station, with the market resolving to the Celsius range containing that peak. The current crowd-implied probability for any specific outcome is effectively zero across the board, yet Polymarket data shows 33°C as the frontrunner at 39%, followed by 34°C at 27%, revealing a stark divergence between the zero-per-cent headline and the underlying distribution of odds [1].

Historical patterns frame this spread: July is one of Beijing’s wettest months, averaging 185 mm of rainfall, which often suppresses peak temperatures but does not eliminate hot spells [2]. Comparable mid-July days in recent years have frequently peaked between 32°C and 35°C, making the 33–34°C cluster a statistically plausible anchor despite the market’s initial 0% YES signal.

Traders should monitor daily Wunderground updates for the station’s recorded maximum, as the settlement source is explicitly tied to this dataset [1]. No scheduled announcements or policy shifts affect this weather contract; the only catalyst is the real-time temperature reading itself. The meaningful divergence lies between the flat 0% implied probability and the concentrated 66% combined odds for 33–34°C, suggesting early liquidity has not yet aligned with climatological expectations.

Sources: 1 · 2

Methodology

This page reviews Highest temperature in Beijing on July 16? 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 Best Prediction Markets, 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 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.

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.

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.