Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
98% | 2% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
98% | 2% | 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 | 98% |
| 36°C | 2% |
| 37°C | 1% |
| 29°C or below | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 38°C | 0% |
| 39°C or higher | 0% |
Market context
Taipei’s heat profile is still the main driver here: the market opened with **0% for YES**, even though the city’s July climate normally supports highs in the low-to-mid 30s and the current crowd is leaning to **35°C** and **36°C** rather than the extremes. Long-run July averages for Taipei sit around **32–34°C**, with heat and humidity enough to make a mid-30s reading a routine outcome rather than an outlier.[3][6][1]
That historical frame matters because the resolution is the *single highest temperature* at Taipei Songshan Airport on the day, not the day’s average, so one hot afternoon spike can settle the market in a higher band. July in Taipei is typically the hottest month, but also one of the wettest, with frequent showers and occasional typhoon-related disruption; that mix can cap temperatures if cloud cover and rain arrive early, yet still leave room for sharp heating if the morning stays clear.[6][2][4]
For traders, the key catalysts are the near-term forecast swings, any rainfall or thunderstorm timing over northern Taiwan, and whether a larger-scale weather system suppresses or sharpens daytime heating before the airport reading is fixed at the settlement window close. If the morning is sunny and winds stay light, the upper temperature bins gain; if cloud and rain build earlier, the lower bins become more credible. The market is therefore most sensitive to the day-of forecast rather than broader July climatology.[4][3]
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 Prediction Today, 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
- 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 Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.
- 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 Prediction Today 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 27? on Prediction Today
Live order book, 0% fees, USDC settlement in seconds.
Open live market →