Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | View on Polymarket → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | View on Polymarket → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | View on Polymarket → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | View on Polymarket → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 34°C | 100% |
| 27°C or below | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C | 0% |
| 33°C | 0% |
| 35°C | 0% |
| 36°C | 0% |
| 37°C or higher | 0% |
Market context
The underlying event is the highest temperature recorded at Incheon International Airport on 5 August, measured over the full day and settled by the Wunderground station record, not by the city forecast alone. That matters because airport readings can differ from central Seoul, and the market is about the day’s single peak, which may occur briefly in the afternoon rather than during the headline forecast window.
The current 0% crowd-implied price sits against a very hot backdrop: the Korea Meteorological Administration has issued a severe heat-wave warning for the Seoul metropolitan area, and local reporting today points to Seoul around 38°C with oppressive heat persisting day and night.[1][5][11] Comparable August climate data also show that Seoul commonly sits in the high 20s to low 30s Celsius, with record highs in the upper 30s, so a very hot outcome is not unusual in late-summer Korea even if it is still sensitive to clouds, showers, and onshore flow.[13][16][18]
For traders, the main catalysts are the day’s actual airport observations, any KMA forecast updates, and whether showers or cloud cover limit the afternoon peak; the market will be driven by what the station records, not by apparent temperature or a city-wide average.[1][5][15] From a regulatory angle, German GlüStV treatment can affect whether this kind of weather event is available in Germany at all, while US CFTC reach is relevant if a platform is deemed to be offering derivatives or event contracts to US persons. The “no-KYC up to $1,500” claim, where offered, usually means a small-value account can be opened with reduced identity checks, but it does not remove geographic blocks, platform terms, or the possibility that higher limits trigger full verification and withdrawal scrutiny.
Methodology
This overview of Highest temperature in Seoul (Incheon) on August 5? 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
- Do I need to KYC for Polymarket Germany Legal?
- 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.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Germany Legal 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.
- 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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