Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Trump Prediction) 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% |
| 29°C or below | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 34°C | 0% |
| 35°C | 0% |
| 37°C | 0% |
| 38°C | 0% |
| 39°C or higher | 0% |
Market context
Taipei's weather on 19 July 2026 will determine which temperature band captures the day's peak reading at Songshan Airport Station, the official measurement point for the city. July sits firmly within Taipei's summer monsoon season, when afternoon highs typically range between 32–35°C, though readings occasionally exceed 36°C during heat waves. The settlement mechanism relies on Wunderground's historical weather database, which archives hourly observations from the airport station throughout each day.
Historical July temperatures at Songshan Airport show considerable year-to-year variation. Between 2015 and 2024, recorded highs on mid-July dates ranged from 31°C to 37°C, with an average around 33–34°C. Notably, Taipei experienced a peak of 38.3°C in July 2022 during an exceptional heat event, though such extremes remain uncommon. The current 0% probability assigned to the market's highest resolution band suggests traders are anchoring to typical rather than exceptional conditions, reflecting the rarity of sustained extreme heat in Taipei despite its tropical climate.
Traders should monitor Taiwan's Central Weather Administration forecasts released in early July 2026, which typically provide 10-day outlooks identifying heat waves or unusual pressure systems. The Pacific typhoon season also influences July weather; tropical systems or their remnants can suppress temperatures through cloud cover and rainfall, whilst high-pressure systems intensify heat. Real-time satellite imagery and atmospheric pressure patterns in the week preceding 19 July will offer the most reliable signals for whether conditions favour typical summer heat or anomalous extremes.
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 July 19? 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.
FAQ
- 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.
- Which platform has the deepest political liquidity?
- Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.
- Why do Polymarket and Kalshi differ on elections?
- Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.
- Which political events have the biggest volume?
- US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.
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