Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legal UK) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
100% | 0% | 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 |
|---|---|
| 16°C | 100% |
| 10°C or below | 0% |
| 11°C | 0% |
| 12°C | 0% |
| 13°C | 0% |
| 14°C | 0% |
| 15°C | 0% |
| 17°C | 0% |
| 18°C | 0% |
| 19°C | 0% |
| 20°C or higher | 0% |
Market context
Wellington International Airport’s afternoon peak temperature is usually modest in early August, with long-run August averages clustering around 12–14°C and typical daily lows near 9°C, so the market will probably settle in the low teens rather than in warm-season territory.[1][2][14] For context, historical August records cited by weather sites show occasional outliers into the high teens or low 20s, but those are uncommon against the city’s generally cool, windy winter pattern.[7][9][12]
The current **0% YES** crowd price can be read as a strong expectation of an unusually cool reading, but the more useful comparator is the station’s winter baseline rather than a generic calendar average.[1][2][14] For German users, a market on a weather outcome is not itself a betting licence, but the GlüStV framework still matters because access, payment routing and marketing can be constrained if the platform’s offering is treated as gambling-like. US users face a different overlay: the CFTC’s reach is relevant where a contract is viewed as a derivatives-style event market, even if the underlying event is meteorological rather than financial. A “no-KYC up to $1,500” policy generally means smaller deposits or positions may be available before identity verification is requested, which can widen access for casual participants, but it does not remove geoblocking, sanctions screening or any jurisdictional restrictions tied to the venue.
For traders, the main catalysts are the overnight and morning weather observations at Wellington, because the market resolves to the day’s highest temperature at the airport station, not to a city-wide average.[5][6] The most important inputs are the local forecast trend, cloud cover, wind and any brief sunshine windows that could lift the midday or early afternoon maximum; once the daily high is locked in before the settlement cut-off, later conditions will not matter. Wunderground’s airport history page is the stated resolution source, so the key dependency is the station’s own final recorded high rather than a third-party summary or nearby location data.[5]
Methodology
This overview of Highest temperature in Wellington on August 3? 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.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Polymarket Legal UK stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- 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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