Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Polymarket Legal in Canada) Pick polygram.ink (preferred broker) |
97% | 3% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Open the market → |
Polymarket (direct) polymarket.com |
97% | 3% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Open the market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Open the market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Open the market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Open the market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 32°C | 97% |
| 33°C | 3% |
| 34°C | 1% |
| 25°C or below | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 35°C or higher | 0% |
Market context
Seoul's peak temperature on 14 July 2026 will be measured at Incheon International Airport's official weather station and recorded in Celsius. This reading determines which temperature band—likely spanning 5°C intervals—captures the day's high, with settlement tied to Wunderground's historical data archive for that specific date and location.
July in Seoul typically sees highs between 28–32°C, though extreme heat events pushing above 35°C have occurred with increasing frequency over the past decade. The 0% crowd probability suggests either market illiquidity or uncertainty about whether the resolution criteria will be met. Historical precedent matters: South Korea's meteorological agency recorded 40.3°C in Hongcheon in 2018 and 39.6°C in Seoul proper in 2015, establishing that outlier temperatures are possible but rare. Comparing this market's settlement mechanism—reliance on Wunderground's Incheon station data rather than Seoul's central observatory—introduces a geographic variance that traders should account for, as airport readings often differ from urban centres by 1–3°C.
Traders should monitor the Korea Meteorological Administration's seasonal forecasts and any heat-wave warnings issued in early July 2026. El Niño or La Niña patterns, typically announced by international agencies by mid-year, influence East Asian summer temperatures materially. The settlement window closes at 12:00 UTC on 14 July, meaning the market resolves based on the full calendar day's peak at Incheon, not a snapshot at market close. Accessibility varies by jurisdiction: German traders face GlüStV restrictions on prediction markets; US participants fall under CFTC oversight of event contracts; platforms offering no-KYC entry up to $1,500 may restrict this weather derivative depending on their licensing model and whether they classify it as a financial instrument or gambling product.
Methodology
This overview of Highest temperature in Seoul on July 14? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
FAQ
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Is Polymarket Legal in Canada has a different geo footprint.
- Do I need to KYC for Is Polymarket Legal in Canada?
- Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
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