Highest temperature in Guangzhou on June 27?

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Market context

On 27 June 2026, the highest temperature recorded at Guangzhou Baiyun International Airport will determine the outcome of a prediction market where the crowd currently assigns zero probability to the “YES” side. Historical data shows Guangzhou’s June highs typically cluster between 31°C and 35°C, with the absolute record reaching 36.6°C. The 0% YES probability likely reflects a specific temperature threshold—perhaps 32°C or higher—that traders deem unlikely despite the region’s intense heat and humidity. Comparable late-June days in Guangzhou consistently fall within this narrow band, suggesting the market may be mispricing the likelihood of a peak near the upper end of the seasonal range[1][8].

Traders should monitor real-time weather updates from Wunderground and forecast revisions from AccuWeather, which currently project daily highs between 87°F and 91°F (30.6°C–32.8°C) for June 2026[2]. A sudden surge in subtropical high-pressure activity or the onset of a typhoon could push temperatures beyond expectations, altering the book depth. Recent analysis from Lines.com notes that late-June peaks in Guangzhou rarely exceed 35°C, but a synoptic shift could breach this ceiling[8]. The market’s traction correlates directly with funding flows: as deposit fees via Klarna and withdrawal rails like SEPA or USDC become more efficient, liquidity increases, tightening spreads and improving price accuracy. Investors prioritising low-friction on-ramps will drive deeper books, making this market a proxy for payment infrastructure performance rather than just weather speculation.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Guangzhou 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 Polymarket Klarna UK — 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

Is this market available outside the US?

Polymarket Klarna UK 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.

What does it cost to trade on Polymarket Klarna UK?

Zero. Polymarket Klarna UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket Klarna UK 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.