Pronóstico: Highest temperature in Shanghai on June 27?

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Market context

Shanghai is entering its hot, humid rainy season, where June highs typically climb between 25°C and 35°C depending on cloud cover. On sunny days, temperatures regularly reach 30–35°C (86–95°F), while cloudy or rainy periods see highs hover around 25–30°C (77–86°F). The current crowd-implied probability of 0% for a specific temperature range suggests the market may be mispricing the likelihood of extreme heat, given that daily highs in June at Pudong Airport average 27°C (80.5°F) but frequently exceed 30°C under clear skies[3][6].

Historical data from June 2025 and long-term averages show that temperatures rarely fall below 21°C or exceed 35°C, yet the upper end of the range is well within normal variation for sunny conditions[2][7]. Traders should monitor Wunderground’s hourly updates for 27 June 2026, as real-time solar radiation and cloud cover will directly determine the peak temperature. A sudden shift to clear skies could push highs toward 34–35°C, while persistent rain would cap them near 28°C[2][3]. No official weather advisories have been issued yet, but local meteorological bulletins from the China Meteorological Administration will provide the most reliable near-term forecast[1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Pronóstico: Highest temperature in Shanghai on June 27? 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 PolyGram — 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 PolyGram, 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.

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PolyGram 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.

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.

How fast are USDC deposits?

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Do I need to KYC for this market?

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