Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Germany Legal) Pick polygram.ink (preferred broker) |
98% | 2% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | View on Polymarket → |
Polymarket (direct) polymarket.com |
98% | 2% | 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 |
|---|---|
| 28°C | 98% |
| 25°C | 1% |
| 26°C | 1% |
| 27°C | 1% |
| 22°C or below | 0% |
| 23°C | 0% |
| 24°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C or higher | 0% |
Market context
Hong Kong’s lowest temperature on 8 August will be taken from the Hong Kong Observatory’s final “Absolute Daily Min (deg. C)” in the Daily Extract, so the settlement is about the overnight and early-morning floor rather than the daytime high. August is normally one of Hong Kong’s warmest months, with the Observatory’s 1991–2020 normals showing an average minimum of 26.9°C for 8 August, which is why sub-26°C outcomes are structurally uncommon[1].
The crowd’s 0% YES on an unsettled weather market should be read cautiously: for a one-day minimum-temperature event, the outcome usually clusters tightly around the seasonal overnight range, and recent August reference data show typical lows in the high-20s Celsius rather than anything materially cooler[4][15]. Comparable Hong Kong August records also show that temperature extremes exist, but they are usually driven by broader synoptic conditions and not by isolated daily swings; the Observatory has previously reported an August record high of 36.3°C, underscoring how event-specific extremes can still occur on a single date[3].
For traders, the main catalyst is the Hong Kong Observatory’s forecast and whether any tropical disturbance, rainband, or stronger cloud cover changes the overnight minimum before the daily extract is finalised. The market cannot resolve until the Observatory publishes the relevant date, so late updates matter more than intraday trading noise. On accessibility, German GlüStV rules are relevant because regulated online gambling and similar offerings in Germany face licensing, advertising, and consumer-protection constraints; US CFTC reach matters because offshore event contracts can still raise US regulatory questions depending on product structure and access. “No-KYC up to $1,500” typically means a platform may allow limited trading or withdrawals before identity verification, but it does not remove geography, sanctions, or account-level compliance checks for this specific market.
Methodology
This overview of Lowest temperature in Hong Kong on August 8? 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 Germany Legal has a different geo footprint.
- 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.
- 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.
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Germany Legal would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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