Highest temperature in Tokyo on July 9?

Platform comparison

Market context

The real-world event hinges on the peak heat recorded at Tokyo Haneda Airport on 9 July 2026, a date historically prone to intense summer highs driven by humidity and heat domes. Current crowd-implied probability of 0% for a specific outcome suggests the market views the target temperature range as virtually unattainable, likely because recent data indicates July highs in the region typically span 23–30°C, with perceived temperatures soaring above 40°C due to 80% humidity[1]. Comparable early-July events, such as the recent record of 40.2°C in Isesaki (85km northwest of Tokyo), demonstrate that extreme spikes are possible but geographically variable, framing the 0% probability as a reflection of the specific station’s typical rather than absolute limits[2].

Traders should monitor official announcements from the Japan Meteorological Agency regarding heat dome formations and scheduled weather updates for the Haneda area, as these dependencies directly influence resolution. Recent forecasts for Haneda indicate daily highs ranging from 76° to 91°F (24–33°C), with averages near 87°F (31°C), suggesting the market’s 0% stance may stem from a mismatch between the target range and these established norms[3][6]. For regulatory accessibility, German GlüStV implications and US CFTC reach create a complex landscape, yet the ‘no-KYC up to $1,500’ threshold allows traders to access this market without identity verification, provided the bet size remains within this limit, enhancing liquidity despite the stringent regulatory backdrop.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Tokyo on July 9? 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.

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).