Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Who Will Win) Pick polygram.ink (preferred broker) |
99% | 1% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
99% | 1% | 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.
| Outcome | Probability |
|---|---|
| 33°C | 99% |
| 34°C | 1% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 37°C or higher | 0% |
Market context
Taipei’s airport station is being priced like a **dead heat to a modestly warm day**, with the crowd at **0% YES** implying the market sees little chance of an extreme reading and little appetite for the higher temperature bands. On the wider seasonal picture, August in Taipei is normally hot and humid, with average highs around **32–34°C** and lows in the **mid-20s°C**, so the favourite outcome is usually somewhere in the low-to-mid 30s rather than a spike far beyond that.[3][9][17]
That makes the **34°C and 35°C** ranges the obvious consensus cluster, while the lower brackets are the underdog side unless cloud, rain or a sea breeze knocks the airport down. Recent market pricing on similar Taipei August outcomes has also concentrated in the low-to-mid 30s, with one event board showing the largest shares around **34°C**, **33°C** and **35°C**, and very small weight on **37°C or higher**.[2] A contrarian angle is that Taipei has recently printed severe heat elsewhere in the city, including reports of **36°C** readings in late July, so if the ridge of heat lingers, the upside surprise is a fuller test of the top end rather than an outright bust.[11]
For traders, the key catalysts are the local forecast updates, any typhoon or heavy-rain shift, and the timing of the day’s actual observation at **Taipei Songshan Airport Station**, since the market resolves off the **Daily Observations** table rather than the summary high/low display. AccuWeather’s August outlook for Taipei shows **89–90°F** highs around the date, which is roughly **32–32.5°C**, reinforcing the market’s bias towards a warm but not exceptional outcome.[1] The value question is whether rain or cloud trims the peak into the low 30s, or whether another hot spell keeps the favourite in the mid-30s and leaves the current 0% YES as a possible misprice.[1][6]
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 Who Will Win, which mirrors the Polymarket order book directly.
Resolution & payout
Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.
Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.
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 Who Will Win. 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%.
Trade Highest temperature in Taipei on August 7? on Who Will Win
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