Highest temperature in Beijing on July 11?

Platform comparison

Market context

Beijing’s highest temperature on 11 July 2026 will be measured at the Beijing Capital International Airport Station, with settlement based on Wunderground’s daily peak in degrees Celsius. The market currently implies a 0% probability for any outcome, yet historical data shows July highs in Beijing routinely reach 30–36°C, with 2023 hitting 40°C and 2024 marking China’s hottest July month in recent history[2][9]. Polymarket data for the same event shows 30°C as the frontrunner at 25%, followed by 29°C at 21%, suggesting the 0% crowd-implied probability here may reflect a liquidity or listing anomaly rather than genuine climatic expectation[1].

Traders should monitor the China Meteorological Administration’s daily heatwave bulletins and the Beijing Meteorological Bureau’s forecast updates, as July is Beijing’s hottest and most humid month, with frequent peaks above 30°C[2][10]. The settlement window closes at 12:00 UTC on 11 July 2026, so real-time Wunderground readings for ZBAA will be the sole resolution source. In crypto markets, BTC and ETH funding rates and whale flows often shift ahead of major on-chain settlement events, and USDC-backed prediction markets like btc-prediction.bet may see correlated volume spikes if macro volatility rises around the settlement date.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.

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.

FAQ

What does a transaction cost on Polygon?

Polygon gas is typically under $0.01 per transaction. A full trade cycle (Approve + Order + Fill) totals around $0.03 — compared to $5-50 on Ethereum mainnet.

Can I use Bitcoin directly?

No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.

How volatile are crypto prediction markets?

Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.

Which crypto markets exist on Polymarket?

Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.

Are crypto prediction markets taxable in the US?

In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.