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 |
|---|---|
| 14°C | 100% |
| 8°C or below | 0% |
| 9°C | 0% |
| 10°C | 0% |
| 11°C | 0% |
| 12°C | 0% |
| 13°C | 0% |
| 15°C | 0% |
| 16°C | 0% |
| 17°C | 0% |
| 18°C or higher | 0% |
Market context
Wellington Airport’s highest temperature on 23 July will be set by the day’s observed peak at the Wellington Intl Airport Station, with the market resolving on Wunderground’s daily history record in degrees Celsius. A 0% yes price implies the crowd sees no plausible route to a materially warm mid-winter reading at the airport, which is consistent with Wellington’s July climatology, where cold southerlies, cloud, and short daylight hours usually cap maxima well below summer-like levels.
For framing, the nearest comparable way to read this market is as a narrow weather-distribution bet rather than a directional climate call: one station, one calendar day, one published peak. Under Germany’s GlüStV regime, access can be constrained if the venue is treated as offering unlicensed gambling to German residents, while US CFTC reach matters if the product is judged to be a commodity derivative or event contract offered into the United States. A “no-KYC up to $1,500” threshold generally means a user may transact or withdraw up to that amount before identity verification is triggered, improving low-value accessibility but not removing jurisdictional or regulatory screening.
For traders, the main catalysts are the local forecast updates, any wind-shift or front timing around the airport, and the precise observation window used by the settlement source. Because the market settles on the highest reading recorded for the full day, a brief late-afternoon or evening spike matters as much as the midday maximum, so changes in forecast confidence from MetService or similar official guidance are the relevant inputs. The probability can move quickly if a warm northerly intrusion is modelled, but without that, the airport’s winter profile keeps upside limited.
Methodology
This overview of Highest temperature in Wellington on July 23? 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.
- 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).
- 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.
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