Highest temperature in Hong Kong on June 29?

Platform comparison

Market context

The real-world event is the peak of Hong Kong’s summer heat on 29 June 2026, when the Hong Kong Observatory will record the day’s absolute maximum temperature in degrees Celsius. Historically, June in Hong Kong sees average highs around 31°C (88°F), with summer months (June to August) typically ranging from 28°C to 32°C (82°F to 90°F) and frequent hot, humid conditions [1]. July and August are usually the hottest months, averaging 32°C (90°F), suggesting that a June 29 peak near or above 32°C is plausible but not guaranteed [1]. The current crowd-implied probability of 0% YES implies traders believe the temperature will fall below the highest range threshold, yet seasonal forecasts for June–August 2026 predict above-normal temperatures for Hong Kong, raising the chance of an extreme heat day [2].

Traders should monitor the Hong Kong Observatory’s finalised “Daily Extract” data for 29 June 2026, which will confirm the official “Absolute Daily Max (deg. C)” once published [2]. Key catalysts include real-time weather updates from the Observatory’s regional forecast system, which tracks maximum temperatures across the Pearl River Delta [5], and any sudden typhoon activity that could suppress temperatures despite the above-normal seasonal trend [1]. The Observatory’s 2026 outlook, aligned with WMO projections of 1.3–1.9°C above pre-industrial averages, further supports the likelihood of elevated heat [6]. Watch for the official release of the Daily Extract, as the market cannot resolve until this data is finalized and publicly available [2].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Highest temperature in Hong Kong on June 29?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi (US-focused) or Manifold (play-money).

Resolution & payout

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