Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
97% | 3% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
97% | 3% | 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 |
|---|---|
| 24°C | 97% |
| 25°C | 3% |
| 22°C or below | 0% |
| 23°C | 0% |
| 26°C | 0% |
| 27°C | 0% |
| 28°C | 0% |
| 29°C | 0% |
| 30°C | 0% |
| 31°C | 0% |
| 32°C or higher | 0% |
Market context
The real-world event in question is the highest temperature recorded at Tokyo Haneda Airport Station on 7 July 2026, measured in degrees Celsius and resolved via Wunderground data. Historical patterns for mid-July in Tokyo show daily highs typically ranging between 28°C and 33°C, with the Japan Meteorological Agency noting a daily normal maximum of 29.0°C for this period [7]. Comparable cases from recent summers indicate that lingering tsuyu frontal activity or stalled low-pressure systems can suppress peak temperatures below 27°C, shifting outcomes toward the 25°C range [10]. Given that the current frontrunner is 26°C at 50% and 25°C at 30%, the market’s 0% YES probability for higher thresholds appears inconsistent with these established climatic baselines [1].
Traders should monitor announcements from the Japan Meteorological Agency regarding tsuyu frontal persistence and any updates on low-pressure system movements, as these are primary catalysts for temperature suppression [10]. Recent flight information from JAL also highlights potential weather-related delays on 7 July, indirectly confirming active atmospheric conditions that could influence thermal readings [3]. From a regulatory standpoint, German GlüStV implications and US CFTC reach define the compliance framework for such markets, while the “no-KYC up to $1,500” threshold ensures accessibility for retail participants without identity verification, provided they remain within this limit. This structure allows broader participation while adhering to KYC exemptions under current tax and regulatory guidelines.
Methodology
This overview of Highest temperature in Tokyo on July 7? 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.
- 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.
- 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), Polymarket Tax UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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