Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax 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
The market hinges on the highest temperature recorded at Wellington International Airport on 16 July 2026, with current data showing 13°C at 1 AM UTC and southerly winds dominating the conditions [1]. Crowd-implied probability sits at 0% for a YES outcome on any specific high-temperature threshold, while the frontrunner outcome is 15°C at 53% probability, suggesting the market expects a mild summer day rather than extreme heat [3].
Historical July weather in Wellington typically features cool temperatures averaging 10–14°C, with rare spikes above 16°C, which aligns with the current 53% weighting on 15°C and 44% on 16°C as the likely resolution points [3]. This distribution mirrors past settlement patterns where mid-range outcomes dominate, reinforcing the 0% probability assigned to outlier high-temperature scenarios that would trigger a YES on extreme heat brackets.
Traders should monitor the National Institute of Water and Atmospheric Research (NIWA) daily forecasts and Wunderground’s hourly updates for the Wellington Intl Airport Station, as these are the official resolution sources [2]. Any sudden shift in wind direction from southerly to northerly could rapidly elevate temperatures, but current meteorological schedules show no such anomaly expected before the 12:00 UTC settlement window. Regulatory clarity remains critical: German GlüStV implications restrict access for EU residents without KYC, while US CFTC reach limits participation for Americans, though the ‘no-KYC up to $1,500’ tier ensures this specific weather market remains accessible to non-restricted global traders under current polymarket-tax.co.uk frameworks.
Methodology
This overview of Highest temperature in Wellington on July 16? 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 Tax UK has a different geo footprint.
- 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.
- 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.
- 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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