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 |
|---|---|
| 36°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% |
| 35°C | 0% |
| 37°C | 0% |
| 38°C or higher | 0% |
Market context
Taipei’s temperature on 6 August is the settlement event, measured by the highest reading at Taipei Songshan Airport Station and rounded to the market’s temperature bands. The current crowd price of **0% YES** is notably lower than the live Polymarket board, where the main outcomes sit around **35°C (31%)** and **36°C (27%)**, with **37°C** still assigned **5%** and the hotter bins priced as possible but less favoured.[2] That gap suggests either the contract is thinly traded or the crowd is discounting the chance of an exact high ending up in the listed ranges, rather than ruling out a warm afternoon altogether.[2]
Seasonally, the market sits in the part of the year when Taipei is usually hot and humid, with August climate averages around **93°F/34°C** for the daily high and around **80°F/27°C** for the low, while broader guides describe August as the city’s hottest month with frequent rain and storm risk.[15][13][19] That means the key historical frame is not whether the day is warm, but whether the peak reaches the mid-30s Celsius that the live market is already clustering around.[2][15] Compared with those norms, a zero-per-cent contract price looks much more like an outlier in market pricing than a statement about the weather itself.[2][15]
The main catalysts are the short-range forecast updates before the noon UTC settlement window, especially any shift in cloud cover, rain bands, or typhoon tracking that could cap daytime heating or, conversely, allow a late spike in temperature.[6][12] AccuWeather’s Taipei outlook shows highs near **90°F/32°C** early in the month and a wider August range up to the low **90s°F**, which leaves room for either a low-30s or mid-30s Celsius finish depending on local conditions on the day.[3][4] Traders watching cross-platform signals will likely focus on whether forecast sites tighten towards **33°C–35°C** or whether weather models start to support an extreme late-day push above that band.[3][6]
Methodology
Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.
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
- 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 Best Prediction Markets. 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.
- 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 August 6? on Best Prediction Markets
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