Highest temperature in Hong Kong on August 8?

Platform comparison

Market context

Hong Kong’s highest temperature on 8 August will be set by the Hong Kong Observatory’s **Absolute Daily Max (deg. C)**, and the reference point is the reading recorded for that day once the daily extract is finalised. Early-hour observations on 8 August already showed 29°C at the Observatory at 3 a.m., with several urban stations clustered around 27–30°C, which is consistent with a warm start but does not by itself determine the day’s peak.[14]

For context, 8 August has produced extreme heat before: the Observatory logged **36.3°C** on 8 August 2015, then the hottest August reading on record there, narrowly above 36.1°C reached in 1900 and 1990.[4] More typical August conditions are much lower, with the Observatory’s 1991–2020 normals showing a mean maximum of **31.7°C** for 8 August and broader August averages around 30–31°C at the city level.[1][3] That gap matters for reading a 0% implied probability: it suggests the market is pricing a very specific temperature band outcome rather than a general “hot day” thesis.

The main catalysts are the Observatory’s daytime evolution, any short-term weather bulletins, and the timing of the final daily extract rather than deposit-side headlines. For traders focused on book depth, the practical issue is whether fresh capital can enter quickly enough to move odds before the settlement window closes: card-style on-ramps such as **Klarna**, bank transfers via **SEPA**, and stablecoin funding in **USDC** all affect how fast liquidity arrives and how tightly the market can reprice. If funding friction is low, late-day temperature updates tend to translate into sharper order-book moves; if withdrawals and top-ups are slow, pricing can stay sticky even when the weather outlook changes.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page compares Highest temperature in Hong Kong on August 8? with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. Polymarket Klarna UK additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.

Resolution & payout

Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like Polymarket Klarna UK add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).

UK Frequently Asked Questions

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Polymarket Klarna UK charges no fees for SOFORT. The only cost is the internal FX spread (typically <1%) on EUR→USDC conversion. SOFORT itself has no end-user fees — the platform absorbs acquirer costs.

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