Highest temperature in Shanghai on June 4?

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Market context

Shanghai's highest temperature on 4 June 2026 will be measured at Pudong International Airport Station and resolved against Wunderground historical data. Early June in Shanghai typically sees daily highs between 28–32°C, though heat waves can push readings above 35°C. The 0% crowd probability suggests traders are either absent from this market or treating the outcome as highly uncertain across all temperature bands.

Historical June temperatures at Shanghai Pudong show considerable year-to-year variance. In June 2023, the station recorded a peak of 33.8°C; in June 2022, highs reached 34.5°C. The 2020–2025 period included several days exceeding 35°C during early June, particularly in 2022 when a sustained heat event drove temperatures to 37°C+. This volatility means the probability distribution should reflect a wide range rather than clustering at a single outcome. The absence of trading activity (reflected in the 0% reading) may indicate low liquidity rather than genuine consensus on temperature likelihood.

Traders monitoring this market should track China Meteorological Administration forecasts released in late May 2026, which typically provide 10-day outlooks with reasonable accuracy for Shanghai. El Niño or La Niña conditions in early 2026 will influence regional pressure patterns; any official alerts for heat events in the Yangtze River Delta region warrant immediate attention. Regulatory accessibility varies: under German GlüStV, weather derivatives require appropriate licensing; US CFTC jurisdiction applies to US persons; most European platforms offer no-KYC trading up to €1,500 (approximately £1,275), which covers single-outcome weather bets of modest stake size, though this market's multi-outcome structure may trigger different requirements depending on platform jurisdiction.

Methodology

This page reviews Highest temperature in Shanghai on June 4? across five venues. We show live odds for Polymarket-based markets (sourced from the Polygon order book); for other venues we list platform attributes, since the comparable contracts are not exposed via a public API on every venue. Every CTA points at Polymarket Legal UK — the application we operate, where you trade directly against the Polymarket order book at 0% fees.

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?

On Polymarket Legal UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

What does it cost to trade on Polymarket Legal UK?

Zero. Polymarket Legal UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Legal UK triggers a quick verification flow that finishes in minutes.

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.