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 |
|---|---|
| 15°C | 100% |
| 9°C or below | 0% |
| 10°C | 0% |
| 11°C | 0% |
| 12°C | 0% |
| 13°C | 0% |
| 14°C | 0% |
| 16°C | 0% |
| 17°C | 0% |
| 18°C | 0% |
| 19°C or higher | 0% |
Market context
Wellington International Airport will record a single highest temperature on 14 July 2026, measured in degrees Celsius. The market resolves to whichever temperature band contains that reading, sourced from Weather Underground's historical data for the airport station. The settlement window closes at midday UTC on that date, capturing the full calendar day's observations.
July is Wellington's coldest month, with mean daily highs around 8–9 °C and overnight lows near 4–5 °C. Historical records show the airport station rarely exceeds 12 °C during July; the highest July temperature on record there is 20.3 °C, set in 1962. The 0% crowd probability reflects the extreme unlikelihood of any outcome falling into the highest temperature bands offered by the market structure. Comparable winter days at Wellington Airport show that temperatures above 15 °C occur fewer than one in fifty Julys, making mid-range and lower brackets vastly more probable than the upper tiers currently priced at zero.
Traders should monitor the Southern Hemisphere winter weather pattern in the week preceding 14 July 2026. A rare warm air mass or föhn-like wind event from the north could push temperatures above seasonal norms, though such occurrences remain statistically rare. The New Zealand MetService issues five-day forecasts roughly one week in advance; checking those forecasts around 8–9 July will clarify whether any unusual warmth is expected. Sea surface temperatures around Cook Strait and upper-air wind patterns in early July will determine whether any northerly flow develops, the primary mechanism for anomalous warmth during Wellington's winter.
Methodology
This overview of Highest temperature in Wellington 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. Polymarket Legal UK has a different geo footprint.
- Do I need to KYC for Polymarket Legal UK?
- 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 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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