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 | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 33°C | 100% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 37°C or higher | 0% |
Market context
Polymarket is pricing **0% YES** on this contract, so the market is effectively saying the highest temperature at Kuala Lumpur Intl Airport on 30 July will not land in the YES range. The settlement is tied to the Wunderground history page for Kuala Lumpur Intl Airport Station, with the result determined by the day’s recorded maximum rather than any citywide estimate or broad forecast[1].
For context, Kuala Lumpur’s July climatology is persistently hot, but the forecast spread for late July generally sits around the low 30s Celsius rather than extreme heat. AccuWeather puts July highs in the **86°F to 92°F** band, roughly **30°C to 33°C**, while the Met Office and other forecast services show highs around **32°C to 34°C** for nearby Kuala Lumpur stations[1][8][15]. That makes the contract read more like a question of where the day’s peak prints within a narrow tropical range than whether the city escapes heat altogether[4][9][17].
For a Polymarket user, the live inputs to watch are the airport’s actual observations through the day, especially any afternoon spike before the settlement window closes. In practice, USDC collateral and Polygon-settled conditional tokens mean the position only resolves from the specified source data, so nearby rain bands, cloud cover, and wind shifts matter only insofar as they change the airport’s recorded maximum. Short-range forecasts around today point to rain or partial cloud, high humidity, and afternoon temperatures around **31°C to 33°C**, which is consistent with a capped upside unless the airport briefly warms more than expected[2][10][13][14].
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
- 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 PolyGram. 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'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.
- 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.
- 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.
Trade Highest temperature in Kuala Lumpur on July 30? on PolyGram
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