Highest temperature in Shanghai on June 8?

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Market context

Shanghai's peak temperature on 8 June 2026 will be measured at Pudong International Airport Station and resolved against historical weather data from Wunderground. June falls within Shanghai's early summer period, when daily highs typically range between 28–32°C, though heat waves can push readings several degrees higher. The settlement window closes at midday UTC, meaning the final temperature reading must be recorded before that cutoff.

Historical June data from Shanghai shows considerable year-to-year variation. Between 2015 and 2024, June 8th temperatures ranged from 24°C to 34°C depending on prevailing weather patterns. The 0% crowd probability currently assigned suggests traders are either awaiting clearer seasonal forecasts or treating this as a placeholder pending meteorological updates closer to the date. Comparable early-June readings in Shanghai rarely exceed 35°C, though such extremes do occur roughly once every five to seven years during anomalous heat events.

Traders should monitor long-range weather models from late May onwards, particularly those tracking subtropical high-pressure systems that could drive temperatures into the 33–36°C band. El Niño or La Niña conditions active in early 2026 will influence whether June leans cooler or warmer than the thirty-year average. Any official heat warnings issued by China Meteorological Administration in the week preceding 8 June would signal elevated probability for higher temperature brackets, as such alerts typically precede sustained warm spells across the Yangtze River Delta region.

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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 Champions League Prediction, 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.

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.

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.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Champions League 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.