Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via PolyGram) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 36°C | 100% |
| 29°C or below | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 39°C or higher | 0% |
Market context
The real-world event in question is the highest temperature recorded on 1 July 2026 at Taipei Songshan Airport, measured in degrees Celsius, with data sourced from Wunderground. This single-day peak will determine the outcome of a prediction market where the crowd currently assigns a 0% probability to the “YES” side, implying near-total certainty that the temperature will fall outside the specified range.
Historically, July is Taipei’s hottest month, with average highs around 33.3°C (92°F) at Songshan Airport, and recent extremes have pushed past 39.7°C (104°F), as seen in a record-breaking day 124 years ago [9]. Overcast data shows that daily highs in early July typically range between 32.4°C and 35.2°C, with about 25% of days falling below 32.4°C [6]. Given this baseline, the 0% implied probability suggests the market’s defined range is either implausibly low or misaligned with climatic norms, creating a stark divergence from analyst expectations that such temperatures are routine in midsummer.
Traders should monitor incoming weather forecasts for July 1, particularly any announcements of thunderstorms or heatwaves, which could significantly shift peak temperatures. Current forecasts indicate a 40% chance of precipitation and highs near 35°C (95°F) [1], while real-time data from the Central Weather Administration shows hot, partly cloudy conditions with temperatures at 34.9°C [4]. A sudden shift in monsoon patterns or urban heat amplification could invalidate the market’s current pricing, especially if Wunderground records a spike beyond the expected band. The settlement window closes on 1 July 2026 at 12:00 UTC, leaving little time for late adjustments.
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 PolyGram, 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.
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's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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