Highest temperature in Tokyo on August 1?

Platform comparison

Market context

The underlying event is the highest temperature recorded at Tokyo Haneda Airport Station on 1 August, with settlement driven by the daily peak on Wunderground rather than by a forecast or airport terminal reading. In practical terms, a **0% YES** crowd price means the market is currently treating the specified outcome as effectively absent, but that can still change if Tokyo posts an unusually hot afternoon or a late data update revises the day’s maximum.

Tokyo’s August climate gives this market its main historical frame: August is typically the hottest part of the year, with average highs around 31°C and monthly averages often near the high 20s to low 30s, while recent JMA monthly data show August mean daily highs in Tokyo at 34.4°C in 2025, underscoring how easily the city can reach the mid-30s in peak summer heat.[10][11][12] The broader Japan record also shows how extreme heat can cluster in early August, with the national maximum reached at 41.8°C on 5 August 2025, so traders usually read a Tokyo August 1 market as a question of whether the day stays in the low-30s or pushes into a hotter tail.[14] For accessibility, German GlüStV rules can affect whether German users are able to access or participate in prediction markets at all, while US CFTC reach is relevant because event contracts may fall within US derivatives scrutiny depending on structure and venue; a “no-KYC up to $1,500” policy generally means smaller accounts may be able to open and trade without full identity verification until cumulative activity crosses that threshold, which affects onboarding friction rather than the contract’s weather basis.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Tokyo on August 1? 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 Legal 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 Legal 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 Legal 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.

What if regulation changes?

If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Legal UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.