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Highest temperature in Hong Kong on August 8?

Live odds for "Highest temperature in Hong Kong on August 8?" pulled from the Polygon order book, alongside the platform attributes of every venue that runs this contract.

34°C 93% 35°C 9% 36°C 1% 31°C or below 0% Volume: $112K Liquidity: $90K Closes: 8 Aug 2026
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Highest temperature in Hong Kong on August 8?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Prediction Today) Pick
polygram.ink (preferred broker)
93% 7% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle Live odds →
Polymarket (direct)
polymarket.com
93% 7% 0% Geo-blocked in US/UK/EU USDC, on-chain Live odds →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD Live odds →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR Live odds →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) Live odds →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
34°C93%
35°C9%
36°C1%
31°C or below0%
32°C0%
33°C0%
37°C0%
38°C0%
39°C0%
40°C0%
41°C or higher0%

Market context

Hong Kong is already starting the day hot, with the Observatory reporting 29°C at 3 a.m., which leaves scope for a solid daytime climb if sunshine persists. AccuWeather’s forecast for the city points to a high around 97°F, or roughly 36.1°C, with similarly hot readings into the following day, so the market’s 0% yes price is sitting against a genuinely warm setup rather than a cool one.[7][1]

For context, the Hong Kong Observatory’s August normals put the mean maximum temperature on 8 August at 31.7°C, but the date has also produced much stronger extremes. The Observatory recorded 34.4°C on 8 August 2020 as the month’s highest reading, while 8 August 2015 produced a record 36.3°C at the Observatory, showing that this date can occasionally move well beyond seasonal averages.[6][11][2]

The main catalyst today is the Observatory’s hourly readings through the afternoon, then the final “Absolute Daily Max (deg. C)” once the Daily Extract is published on the climatology page; the market cannot settle until that file appears.[3] Traders should watch whether the city keeps cloud cover and sea-breeze influence low enough to challenge the low-to-mid 30s, as early-morning temperatures alone do not determine the final outcome.[7]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Prediction Today, which mirrors the Polymarket order book directly.

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.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?
Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
Is this market available outside the US?
Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
Is Polymarket legal in the UK?
Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.
Do I pay tax on prediction market profits in the UK?
UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.
How do I deposit on Polymarket from the UK?
UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.
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