Highest temperature in Shanghai on June 30?

Platform comparison

Market context

On 30 June 2026, the Shanghai Pudong International Airport Station will record its peak temperature for the day, a single data point that determines whether the market settles on the higher temperature range. The crowd currently assigns a 31% probability to the "YES" outcome, implying a belief that the temperature will likely fall below the threshold defining the upper bracket. This probability sits in a zone where historical precedent suggests significant volatility, as summer highs in Shanghai regularly exceed 30°C and can reach 35°C during the most sunny intervals[5].

Comparable weather markets often mirror the 50/50 split seen in Eurovision, where jury and public votes balance each other, yet here the public sentiment leans slightly against the upper range despite the onset of the hot season which begins 17 June[6]. Daily highs in June typically climb from 77°F to 83°F, rarely falling below 69°F or exceeding 92°F, creating a narrow window where a single cloud cover event or wind shift could invalidate the "YES" bet[1]. The 31% figure reflects a cautious stance, acknowledging that while the hot season is active, the average daily shortwave solar energy is gradually decreasing through the month, potentially limiting peak temperatures[1].

Traders should monitor the real-time weather feed from Wunderground for the specific station, as the resolution depends entirely on the highest temperature recorded for all times on this day[7]. Key catalysts include the wind speed, which remains essentially constant at roughly 11.3 miles per hour, and the humidity levels which can reach 84%, both factors that influence how heat is retained or dispersed[1]. A sudden drop in pressure or an unexpected East South Easterly wind, similar to patterns observed at nearby Hongqiao Airport, could act as a decisive dependency that pushes the temperature below the threshold[2]. The settlement window closes at 12:00:00Z on 30 June, leaving no room for post-event adjustments once the data is locked in.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Entertainment-specific comparison page for Highest temperature in Shanghai on June 30?. Polymarket's live quote (Polygon order book) shows the award probability. For awards markets, Polymarket usually has the deepest liquidity; Betfair runs comparable markets for Oscars/Emmys; Manifold for Eurovision.

Resolution & payout

Entertainment markets settle on official award ceremony or show end. Polymarket uses UMA Optimistic Oracle with a source URL to the official award website. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

Which entertainment markets are available?

Oscars / Academy Awards (Best Picture, Best Director, Best Actor/Actress), Eurovision Song Contest, Emmy Awards, Grammy Awards, Golden Globes, plus reality-TV outcomes (Bachelor, Survivor). Volume usually sits in the five- to six-figure range per market.

How accurate are award predictions?

Variable. Industry-predictable awards (Oscar Best Picture) have high market accuracy (Brier ~0.15). Reality-TV outcomes with small markets carry more noise. Eurovision is notorious for market upsets due to bloc voting.

What was the top Oscar 2025 market?

Best Picture, with ~$2.8M volume on Polymarket. "Anora" started as an underdog at ~8% and closed at ~62% before the ceremony — the biggest single Oscar market swing since 2019.

How are reality-TV outcomes verified?

UMA Oracle uses the official show website or producer statement as the resolution source. Very narrowly defined markets (e.g. "Will X be voted off the island?") rely on the official show notes.

Are there politics-entertainment crossover markets?

Yes — e.g. "Will X be parodied on SNL?", "Who will host the next Oscars?". These have thinner liquidity but offer alpha for traders who read pop-culture and political worlds together.