Highest temperature in Shanghai on July 10?

Platform comparison

Market context

The real-world event hinges on the highest temperature recorded at Shanghai Pudong International Airport on 10 July 2026, measured in degrees Celsius and sourced from Wunderground. Historical data confirms July is the hottest month in Shanghai, with average highs reaching 32°C (87°F) and summer peaks regularly exceeding 35°C (95°F) during sunny conditions[1][6]. Given these consistent climatic patterns, the current crowd-implied probability of 0% for a "YES" outcome (presumably indicating a temperature below a specific threshold) appears statistically anomalous, as temperatures in this range are virtually guaranteed for this date and location.

A power-user approaching this market programmatically would monitor real-time weather feeds and historical anomalies rather than relying on crowd sentiment. Key catalysts include incoming monsoon activity or sudden cloud cover, which could marginally suppress peak temperatures, though such events are rare in mid-July. Recent forecasts for Shanghai indicate overcast conditions with temperatures around 32°C, suggesting no immediate deviation from the seasonal norm[2][4]. Traders should also watch for official meteorological announcements from the China Meteorological Administration, as any declared heatwave or extreme weather event would directly validate the market's resolution criteria. A recent BBC forecast for the region shows temperatures hovering near 32°C with high humidity, reinforcing the expectation of standard summer heat[7].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Highest temperature in Shanghai on July 10? 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

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

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 Polymarket Review UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

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 Polymarket Review UK trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.