Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
99% | 1% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
99% | 1% | 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 |
|---|---|
| 13°C | 99% |
| 7°C or below | 0% |
| 8°C | 0% |
| 9°C | 0% |
| 10°C | 0% |
| 11°C | 0% |
| 12°C | 0% |
| 14°C | 0% |
| 15°C | 0% |
| 16°C | 0% |
| 17°C or higher | 0% |
Market context
The market tracks the highest temperature recorded at Wellington International Airport on 13 July 2026, with settlement tied to Wunderground’s daily peak reading in degrees Celsius. Historical MetService data shows July highs in Wellington typically cluster between 11–14°C, averaging near 12°C, which aligns with the current crowd-implied probability of 0% for any outcome outside this band [2][6]. Comparable weather prediction markets for Wellington in early July 2026—such as the July 7 and July 2 contracts—showed heavy weighting on 13°C, with implied probabilities of 100% and 53.5% respectively, reinforcing that 13°C is the statistically dominant expectation for mid-July [1][3].
Traders should monitor MetService’s daily forecasts released each morning, as sudden shifts in cloud cover or wind patterns can alter peak temperatures by 1–2°C within hours. The resolution depends entirely on Wunderground’s recorded maximum for NZWN, making data latency or station anomalies a key dependency [2]. While no immediate weather alerts have been issued for Wellington as of 13 July 2026, forecasters note that July remains the coldest month in New Zealand, with minimal variance from the mean [10].
From a regulatory angle, German GlüStV rules may restrict access for users in Germany unless the platform holds a local licence, while US CFTC reach could apply if the market is deemed a commodity-based derivative. The ‘no-KYC up to $1,500’ threshold means this market remains accessible to most retail traders without identity verification, provided they stay under the limit and are not in a jurisdiction with explicit bans on unlicensed prediction markets.
Methodology
This overview of Highest temperature in Wellington on July 13? 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 Tax 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.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Polymarket Tax 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.
- What happens during a tax audit?
- You're responsible for documenting your trades. Polymarket Tax 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.
- 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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