Highest temperature in Tokyo on August 5?

Platform comparison

Market context

Tokyo’s outcome will be set by the highest temperature recorded at Haneda Airport during the day, with settlement based on the Wunderground history page for Tokyo Haneda Airport Station. That makes the key variable not the citywide daily average, but the single warmest reading logged before the market’s cut-off window closes, so a late-afternoon spike can matter more than the morning profile.

The current 0% crowd-implied probability on the YES side is a market signal, not a weather forecast. Recent history shows Tokyo can still reach the mid-30s Celsius in early August, with the JMA listing 35.6°C at Haneda on 1 August 2026 and 33.0°C on 2 August, while a separate resolved Tokyo temperature market for 1 August settled on 35°C. Broader August guidance for Tokyo points to average highs around 30–31°C, with hotter-than-average days regularly clearing 30°C and occasional much stronger peaks.[1][17][9][13]

For accessibility, the practical constraint is regulatory rather than meteorological. Under German GlüStV rules, operators and users can face strict gambling-law limits, so availability can vary by jurisdiction even when a market is technically open; in the United States, CFTC reach can also matter if a venue is treated as offering regulated derivatives-like event contracts. A “no-KYC up to $1,500” setup generally means smaller users can access the market with lighter identity checks until cumulative activity crosses that threshold, which reduces friction but does not remove geo-blocking, account screening, or venue-side compliance checks. The main catalysts to watch are JMA and airport observations through the afternoon Tokyo time, plus any shift in cloud cover, rainfall, or sea-breeze suppression that can cap the daily high; current short-range forecasts still show temperatures in the high 20s to upper 30s Fahrenheit equivalent bands, consistent with a hot but not yet exceptional day.[6][8][15]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Tokyo on August 5? 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 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.

Can I trade anonymously?

Pseudonymously, yes — up to the KYC threshold. Is Kalshi Legal in California 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. 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.

What if regulation changes?

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