Highest temperature in Shanghai on July 7?

Platform comparison

Market context

The underlying event is the peak daily temperature recorded at Shanghai Pudong International Airport on 7 July 2026, a date that historically sits within the city’s hottest month. Current crowd-implied probability for the “YES” outcome is 0%, suggesting the market consensus believes the temperature will not reach the specified threshold. This zero valuation appears contrarian when weighed against historical data: July at Pudong regularly sees highs exceeding 30°C (86°F), often climbing to 35°C (95°F) under clear skies, with average daily highs reaching 87°F (31°C) [6][7]. Recent forecasts for 7 July already indicate a maximum of 33°C (91°F) at the airport, with similar readings of 34°C recorded on adjacent days [2][5].

Traders should monitor real-time weather updates, particularly cloud cover and wind direction, as these directly influence peak temperatures. A shift to southeasterly winds, as currently observed, typically brings warmer air from the ocean, while broken clouds may limit solar heating [2][5]. The settlement relies on Wunderground’s official daily record, so any discrepancy between forecast models and the final logged value could create value opportunities. Recent similar markets, such as the 5 July Shanghai temperature event which resolved at 31°C, confirm that thresholds near 33°C are frequently breached in this period [3]. With consensus locked at 0%, the value spot likely lies in betting that the temperature will exceed the threshold, given the strong seasonal tendency for such highs.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Shanghai on July 7? 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 Who Will Win 2026, 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 Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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 Who Will Win 2026 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.