Highest temperature in Shanghai on July 6?

Platform comparison

Market context

The highest temperature recorded at Shanghai Pudong International Airport on 6 July 2026 will determine the outcome of this prediction market, with the settlement window closing at 12:00 UTC. Today, Polymarket prices the "YES" contract at 0%, implying the crowd believes the temperature will not fall within the specified range, likely a lower bracket than the historical norm for mid-July.

Historical data frames this near-zero probability as a mispricing, given that July highs at Pudong typically climb from 84°F to 88°F (29°C to 31°C), rarely dipping below 75°F (24°C) [1][7]. The average daily solar energy is also rising through the month, increasing from 5.1 kWh to 5.6 kWh, which supports sustained heat rather than the cool anomaly the market currently anticipates [1]. Traders should note that June 2026 saw daily highs consistently around 91°F (33°C), suggesting the baseline for early July remains significantly warmer than the implied outcome [4].

Key catalysts include the official 24-hour temperature logs from Wunderground, which will be the sole resolution source, and any sudden shifts in the East South Easterly wind pattern currently bringing drizzle and 84% humidity to the region [2][3]. While the current forecast for Tuesday 7th July predicts light rain and a high of 96°F (36°C), the immediate catalyst for the 6th is the real-time monitoring of the 79°F (26°C) reading at 5:30 am and the subsequent daytime climb [2][3]. On-chain mechanics involving USDC on Polygon and conditional tokens will execute automatically once the Wunderground data confirms the peak temperature, making the timing of the daily high the critical dependency for settlement [5].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shanghai on July 6? 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 Kalshi UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

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.

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 Kalshi UK 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.