Highest temperature in Tokyo on August 2?

Platform comparison

Market context

Tokyo’s maximum on 2 August will be set by the highest reading at Haneda Airport Station, with the market settling from Wunderground’s daily history page for that station. The current crowd price of 0% YES implies traders are treating the relevant outcome as either unavailable, already unlikely from the weather setup, or mispriced relative to the settlement rule, so the practical question is whether the day’s peak lands in a low, mid, or upper-30s Celsius band rather than a precise decimal. Tokyo’s August climate normally features average highs around 31°C, but summer maxima often push above 30°C in humid conditions.[8][11][17]

The comparison set matters because recent Tokyo summer heat has already produced 36°C-plus readings in central Tokyo, while Japan has also seen 40°C days elsewhere this season, underscoring how quickly synoptic heat can lift station maxima.[13] For this market, the key historical framing is that Haneda sits on the urban coastal plain and can track slightly differently from central Tokyo, so traders tend to watch whether a broad heat ridge, sea-breeze suppression, or afternoon cloud breaks the expected peak into one bracket or the next.[7][14] On that basis, a zero-implied price looks more like a market signalling issue than a firm weather view.

For catalysts, the main inputs are Japan Meteorological Agency heat guidance, any updated Tokyo hourly forecasts, and whether the first post-midnight reading for 3 August appears on the settlement source before revisions close. Wunderground’s rule means late corrections can still matter until the next day’s first datapoint is published, so a trader watching accessibility should note that the market description references no-KYC up to $1,500, which generally means smaller position sizes can be entered without full identity checks, while larger limits may trigger verification. German GlüStV exposure is a separate regulatory question for operators and users based in Germany, and US CFTC reach is relevant where a market is considered event-contract or derivatives-like rather than a simple wager.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Tokyo on August 2? 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. Is Kalshi Legal in California has a different geo footprint.

Do I need to KYC for Is Kalshi Legal in California?

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.

What happens during a tax audit?

You're responsible for documenting your trades. Is Kalshi Legal in California 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.