Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legal UK) Pick polygram.ink (preferred broker) |
98% | 2% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
98% | 2% | 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 |
|---|---|
| 28°C | 98% |
| 29°C | 1% |
| 21°C or below | 0% |
| 22°C | 0% |
| 23°C | 0% |
| 24°C | 0% |
| 25°C | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 30°C | 0% |
| 31°C or higher | 0% |
Market context
Seoul’s July 16, 2026 high temperature will be measured at Incheon International Airport, with the market currently pricing a 0% chance of any outcome below 29°C. Historical July data shows Seoul routinely hits 30°C amid monsoon humidity, and the adjacent July 15 market resolved at 28°C, confirming the city’s tendency for rapid daily swings [2][3]. The 39% probability assigned to 29°C and 35% to 30°C suggests traders view sub-29°C outcomes as implausible, aligning with the region’s typical midsummer heat profile [1].
Watch Korea Meteorological Administration monsoon bulletins and Wunderground’s hourly Incheon logs as the settlement window closes at 12:00 UTC on July 16. Recent forecasts indicate daily highs near 30°C with humidity pushing felt temperatures above 34°C, a key dependency for the 29°C–30°C range [2][4]. Any sudden rain front or cloud cover could suppress the peak, but the wettest month in Korea usually sustains high temperatures through midday [4].
Regulatory access hinges on jurisdiction: German GlüStV classifies such weather bets as gambling, requiring operator licensing, while US CFTC reach extends to any platform offering unregistered derivatives to US persons. The “no-KYC up to $1,500” feature permits anonymous participation for non-US, non-German users, but does not override local tax or reporting obligations. Traders must verify their location’s stance on prediction markets before entering, as compliance failures can void payouts regardless of the temperature outcome.
Methodology
This overview of Highest temperature in Seoul on July 16? 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. Polymarket Legal UK has a different geo footprint.
- 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.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Legal UK exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- 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.
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Legal UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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