Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) Pick polygram.ink (preferred broker) |
78% | 22% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Live odds → |
Polymarket (direct) polymarket.com |
78% | 22% | 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 |
|---|---|
| 33°C | 78% |
| 34°C | 19% |
| 35°C | 1% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 36°C | 0% |
| 37°C or higher | 0% |
Market context
Taipei’s reading will be set by the **highest temperature logged at Songshan Airport**, not the headline “Day High & Low” figure, so the market is really about whether the official station record reaches the next Celsius band before the settlement window closes. August is normally among Taipei’s hottest months: AccuWeather’s monthly outlook shows early-August highs around **89°F to 90°F** (about **32°C to 32.2°C**), while Time and Date puts the city’s August average high at **93°F** (about **34°C**).[1][9]
That matters because the current **0% YES** price is far below what climatology alone would suggest, which usually means traders are discounting either a documentation issue or the possibility that the true recorded peak stays below the market’s threshold. Comparable August guides for Taipei point to persistent heat and humidity, with typical highs around **32°C to 34°C** across the month, so a single warm afternoon can materially shift the outcome even when daily averages look ordinary.[3][7][11]
The main catalyst is the local weather pattern over the last few hours before the settlement cut-off: cloud cover, rain bands, or an island heat surge will determine whether Songshan Airport posts a higher observed maximum than the forecast-style monthly summaries imply. Traders should watch short-range Taipei forecasts and any Taiwan Central Weather Administration heat or rain updates, since those are the practical drivers of the station observation that Wunderground will use for resolution.[6][14]
Methodology
Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Taipei on August 7? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.
Resolution & payout
For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.
UK Frequently Asked Questions
- How accurate are political prediction markets?
- Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.
- What resolution source is used for elections?
- Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.
- Can prediction markets influence election outcomes?
- Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.
- How fast do political markets react to news?
- High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.
- Are UK election prediction markets available from the UK?
- Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.
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