Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Best Prediction Markets) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| 35°C | 100% |
| 28°C or below | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 36°C | 0% |
| 37°C | 0% |
| 38°C or higher | 0% |
Market context
Taipei’s July climate routinely delivers peak daytime highs between 32°C and 38°C, with the Taipei Songshan Airport Station historically recording temperatures within this band during midsummer [1]. Given that the settlement window closes on 20 July 2026 and the crowd-implied probability for a YES outcome sits at 0%, the market appears to be pricing in an extreme outlier event—such as a temperature exceeding a specific high threshold not defined in the prompt but implied by the binary nature—rather than the typical seasonal maximum. Historical July data shows no deviation from this hot, sticky pattern, suggesting the 0% probability reflects a mismatch between the contract’s threshold and realistic meteorological expectations for the station [1].
Traders should monitor real-time updates from Wunderground, the designated resolution source, for any anomalies in the daily high recorded at RCSS on 20 July 2026, as cloud cover and humidity levels can temporarily suppress or elevate readings [2]. While no specific weather announcements are scheduled for that date, the broader East Asian monsoon pattern and any incoming tropical systems could act as catalysts for temperature divergence. Current conditions at Songshan Airport show cloudy skies with an 84% humidity level and a RealFeel of 92°F (33°C), indicating that even under non-peak sunshine, the station remains in a high-heat regime consistent with July norms [2]. Any sudden shift in wind patterns or precipitation ahead of the settlement date would be the primary signal to reassess the implied probability.
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 Best Prediction Markets, which mirrors the Polymarket order book directly.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- 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.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- How fast are USDC deposits?
- Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
Trade Highest temperature in Taipei on July 20? on Best Prediction Markets
Live order book, 0% fees, USDC settlement in seconds.
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