Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Prediction Today) Pick polygram.ink (preferred broker) |
59% | 41% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
59% | 41% | 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 |
|---|---|
| 38°C | 59% |
| 39°C | 27% |
| 40°C | 2% |
| 41°C | 1% |
| 42°C | 1% |
| 35°C or below | 0% |
| 36°C | 0% |
| 37°C | 0% |
| 43°C | 0% |
| 44°C | 0% |
| 45°C or higher | 0% |
Market context
Chengdu is starting the day under hot, humid summer conditions, with recent forecasts keeping daytime highs in the mid-30s Celsius and only limited relief from cloud or rain. Live and forecast feeds point to temperatures around 35–36°C today, which keeps the market focused on whether the airport station can print a distinctly hotter afternoon maximum rather than merely a typical July heat peak.[4][8][9]
That matters because July in Chengdu is already one of the city’s hottest and wettest periods, with common daytime ranges around 30–35°C and occasional spikes higher when sunshine breaks through. Travel and forecast sources describe July as both muggy and rain-prone, with some days reaching 38°C, so a zero-implied probability is unusually conservative unless cloud cover and showers cap the afternoon upside more firmly than expected.[5][7][13]
For traders, the key catalysts are the timing of cloud build-up, any afternoon thunderstorm risk, and how much rainfall reaches the airport station itself, since convective showers can quickly suppress the day’s maximum. There are no relevant policy or event-driven announcements here; the market will be driven mainly by the evolving intraday weather picture and any official forecast updates from the surrounding hours, with airport observations and nearby station trends the most useful guide to whether the high lands in the upper 30s or settles closer to the mid-30s.[3][8][9]
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.
- 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 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.
- 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.
Trade Highest temperature in Chengdu on July 24? on Prediction Today
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