Highest temperature in Tokyo on July 23?

Platform comparison

Market context

Tokyo’s highest temperature on 23 July will be set by the day’s peak reading at Haneda Airport, using Wunderground’s daily history for the station in Tokyo. July in Tokyo is normally hot and humid, with a typical daily high around 30°C, so the relevant question is whether the afternoon maximum lands in the high-20s, low-30s, or well above that benchmark.[1]

A 0% crowd-implied probability on the YES side means the market is treating that exact outcome as presently unpriced, not impossible. In weather markets, late-day heat spikes can still matter because the settlement uses the single highest recorded temperature on the calendar day, so the reading is driven by the warmest hour rather than the daily average.[1] Comparable July climatology also suggests humidity and cloud cover can blunt extremes, but Tokyo still often reaches the low-30s Celsius in midsummer.[1]

For accessibility and regulation, the practical issue is where the market is offered and who can verify participation requirements. Under Germany’s GlüStV regime, prediction-market access can trigger licensing and consumer-protection constraints if the activity is treated as gambling rather than a regulated financial product, while US CFTC reach is relevant where a contract is considered a derivatives instrument and US persons are involved. “No-KYC up to $1,500” usually means small deposits or withdrawals may be allowed with lighter identity checks, but that does not remove platform limits, geo-restrictions, or source-of-funds checks on this market if the operator applies them.

Sources: 1

Methodology

This overview of Highest temperature in Tokyo 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

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 Polymarket Legal in Canada has a different geo footprint.

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 Polymarket Legal in Canada 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).