Pronóstico: Highest temperature in Hong Kong on June 26?

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Market context

Hong Kong is set to experience its peak June heat on 26 June 2026, with the Hong Kong Observatory tracking the absolute daily maximum temperature in degrees Celsius. Long-term averages place daytime highs around 30°C, but the current seasonal forecast for June–August 2026 explicitly predicts above-normal temperatures across the region[3]. This climatic shift, driven by the latest ENSO status and climate model guidance, suggests the market’s 0% YES probability for higher ranges may be underestimating the likelihood of extreme heat events, especially given recent warnings of urban temperatures reaching 35°C and rural areas hitting 36–37°C[7].

Historical June data shows that tropical storms affect Hong Kong on roughly 1.4 days per month, often bringing temporary cooling, yet the current forecast indicates normal to below-normal rainfall, reducing that mitigating factor[1]. Traders should monitor the Hong Kong Observatory’s upcoming “Daily Extract” publication, which finalises the “Absolute Daily Max (deg. C)” once data is verified[3]. A key catalyst is the potential arrival of a tropical storm in the coming days; if one passes through, it could suppress temperatures, but the prevailing dry conditions increase the risk of sustained high heat. The resolution depends entirely on this official dataset, which will be available via the Observatory’s climate portal once finalized.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Pronóstico: Highest temperature in Hong Kong on June 26? 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

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

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.

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?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

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.

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.