Pronóstico: Highest temperature in Hong Kong on June 25?

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Market context

Hong Kong’s June 25, 2026, high temperature is the real-world event this Polymarket contract prices, and today the market shows a 0% chance that the peak will hit 32°C. On-chain, USDC sits on Polygon, with conditional tokens locking the bet against the Hong Kong Observatory’s finalised “Absolute Daily Max” in the Daily Extract. The zero probability is stark, but it clashes with historical patterns where June highs in Hong Kong routinely exceed 32°C.

Historical data frames this 0% as an outlier. AccuWeather’s June 2026 forecast for Hong Kong lists daily highs between 85°F and 92°F (roughly 29°C to 33°C), with an average of 89°F (32°C)[1]. The Hong Kong Observatory’s seasonal forecast for June–August 2026 predicts above-normal temperatures, reinforcing that 32°C is not an extreme threshold for late June[2]. Just last Friday, Hong Kong hit 34°C at the Observatory, peaking at 36.7°C in Sheung Shui, proving 32°C is easily reachable in current conditions[7].

Traders should watch the Observatory’s Daily Extract release schedule and any sudden shifts in the Pearl River Delta’s multi-model consensus forecast, which could alter the finalised max temperature[8]. The key dependency is the publication of the official “Absolute Daily Max” for June 25, which the market cannot resolve until[4]. No recent news announcement has contradicted the above-normal temperature trend, so the 0% price likely reflects a mispricing of the event’s likelihood rather than a genuine absence of risk.

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?

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?

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.