Highest temperature in Shanghai on June 23?

Platform comparison

Active sub-markets

Market context

The underlying event is the highest temperature recorded at Shanghai Pudong International Airport on 23 June 2026, measured in degrees Celsius. Historical data shows that late June in Shanghai falls within the hot season, which runs from mid-June to mid-September, with average daily highs consistently exceeding 80°F (27°C) [3]. Typical June highs at Pudong range from 77°F to 83°F (25°C to 29°C), rarely dropping below 69°F or surpassing 92°F (33°C) [7]. During peak sunny conditions, temperatures can reach 35°C (95°F), and summer highs regularly exceed 30°C (86°F) [5]. Given this climatic baseline, a 0% implied probability for any temperature range suggests a significant divergence from analyst consensus, which anticipates temperatures well within the 25–33°C band, unlike sportsbook lines that may reflect different risk models or liquidity constraints.

Traders should monitor the Shanghai Meteorological Centre’s daily alerts and the specific weather schedule for the Pudong area, as extreme heat events often trigger orange or red alerts. A recent orange alert was issued after three consecutive days of high temperatures, with reports noting temperatures reaching 60°C at airport surfaces, though this likely refers to surface heat rather than air temperature [6]. The primary catalyst is the official Wunderground record for the day, which will be the sole resolution source [1]. Forecast models for June 2026 predict daily highs between 77°F and 96°F (25°C to 36°C), with overnight lows between 68°F and 79°F (20°C to 26°C) [4]. Any sudden shift in cloud cover, wind direction, or precipitation could alter the peak temperature, making real-time monitoring of the National Weather Service timeseries for ZSPD essential for accurate cross-platform odds comparison [1].

Sources: 1 · 2 · 3 · 4 · 5

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

Is this market available outside the US?

Best Prediction Markets 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.

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, Best Prediction Markets 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.