Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legal in California) Pick polygram.ink (preferred broker) |
100% | 0% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
100% | 0% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| 13°C | 100% |
| 8°C or below | 0% |
| 9°C | 0% |
| 10°C | 0% |
| 11°C | 0% |
| 12°C | 0% |
| 14°C | 0% |
| 15°C | 0% |
| 16°C | 0% |
| 17°C | 0% |
| 18°C or higher | 0% |
Market context
Wellington International Airport's highest temperature on 14 August 2026 will be recorded in the Daily Observations table on Weather Underground, with resolution tied to the specific station data rather than summary figures. August is mid-winter in New Zealand's capital, where mean daily highs typically range from 11–13 °C; the 0% crowd probability reflects the absence of any forecast anomaly suggesting an unusually warm day. The market's reliance on granular station data—not rounded summaries—means resolution hinges on precise instrumental readings rather than editorial presentation, a distinction that occasionally produces discrepancies in weather markets.
Historical Wellington August temperatures show little volatility. Over the past decade, daily highs have rarely exceeded 15 °C during the month, and extreme heat events are absent from the winter season. Comparable markets on similar southern-hemisphere winter dates have consistently resolved to narrow ranges (10–14 °C), establishing a baseline against which any deviation would signal either unusual atmospheric conditions or measurement anomalies. The current crowd assessment reflects this stability.
Traders should monitor the MetService New Zealand forecast and NIWA climate outlooks released in early August 2026, which will clarify whether any subtropical air mass or pressure system might push temperatures above the historical norm. The settlement window closes at 12:00 UTC on 14 August, allowing only morning observations to count; any late-day warming will not affect resolution. Weather Underground's data feed from Wellington Intl Airport is the sole authoritative source, making station maintenance or sensor recalibration during the resolution window a secondary risk factor.
Methodology
This overview of Highest temperature in Wellington on August 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
- 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. Is Kalshi Legal in California 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.
- What happens during a tax audit?
- You're responsible for documenting your trades. Is Kalshi Legal in California 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), Is Kalshi Legal in California would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
Trade Highest temperature in Wellington on August 14? on Is Kalshi Legal in California
Live order book, 0% fees, USDC settlement in seconds.
Open live market →