Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Kalshi UK) 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 |
|---|---|
| 36°C | 99% |
| 28°C or below | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 37°C | 0% |
| 38°C or higher | 0% |
Market context
Polymarket prices this contract at 0% for **YES** right now, so the market is effectively saying none of the listed temperature bands are being assigned meaningful probability by traders. On-chain, that means positions are still just USDC-settled conditional tokens on Polygon, with shares paying out $1 only if the Taipei Songshan Airport Station’s recorded high on 6 August 2026 lands in the winning range. The venue matters: this is not a general Taipei forecast, but a single-station maximum, as resolved from Wunderground’s daily history page for RCSS.
For context, Taipei in August is normally very warm, with typical highs around 33–34°C and occasional days reaching 35°C or above in published monthly guides and forecast summaries.[5][14][16] That makes the market’s current zero price for YES unusual if interpreted as a broad “no-trade” signal rather than a view on the weather itself. For comparison, Polymarket’s own live board shows the middle bands clustered around the mid-30s, with 35°C currently the leading outcome at 31% and 36°C close behind at 27%.[1] In other words, the crowd is not pricing a cold day; it is concentrating around a hot but still fairly ordinary Taipei summer high.[1][5]
A trader watching this market would focus on the day’s heat evolution, cloud cover, rain timing, and any updated local forecasts for Songshan rather than citywide averages. Forecast services currently point to highs in the low-to-mid 30s and some suggest patchy rain or heavy humidity, both of which can cap the afternoon peak even when the air feels oppressive.[2][6][7] Because resolution depends on the highest temperature recorded by a single airport station, late-day changes and the official Wunderground reading matter more than headlines about broader weather conditions.[1]
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 Kalshi UK, 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
- 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.
- How does resolution work?
- Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.
- 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 6? on Kalshi UK
Live order book, 0% fees, USDC settlement in seconds.
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