Highest temperature in Shanghai on June 4?

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Market context

Shanghai's weather on 4 June 2026 will determine which temperature band captures the day's peak reading at Pudong International Airport Station. Early June sits within Shanghai's transition into summer, when daytime highs typically range between 28°C and 32°C, though heat waves can push readings several degrees higher. The current zero probability assigned to this market suggests traders are either awaiting historical baseline data or treating the outcome as genuinely uncertain until nearer the settlement date.

Historical Shanghai weather records show considerable variability in early June temperatures. Between 2015 and 2024, 4 June highs ranged from 24°C to 34°C across different years, with an average around 29°C. This ten-degree spread reflects how monsoon patterns and subtropical pressure systems create genuine unpredictability at this seasonal transition point. Comparable markets on specific daily temperatures typically see probability shifts only within two to three weeks of the settlement window, when meteorological forecasts gain meaningful accuracy.

Traders should monitor long-range weather models from mid-May onwards, particularly those tracking the East Asian summer monsoon onset timing and any developing heat dome patterns across eastern China. The China Meteorological Administration issues extended forecasts that can signal whether anomalous warmth is probable. Sea surface temperature anomalies in the Western Pacific, typically reported by late May, will indicate whether conditions favour above-average or below-average June temperatures across the region.

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Shanghai on June 4? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

Is this market available outside the US?

Trump Prediction is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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, Trump Prediction 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.