Highest temperature in Tokyo on July 28?

Platform comparison

Market context

On 28 July 2026, Tokyo's highest temperature will be recorded at Haneda Airport Station and settled against historical weather data from Wunderground. The settlement window closes at 12:00 UTC that day, meaning traders must assess the likelihood of specific temperature thresholds before the market locks. Tokyo's summer climate is characterised by high humidity and frequent heat waves; July averages peak temperatures between 32–35°C, though extremes regularly exceed 36°C during heatwave periods.

Historical precedent shows Tokyo experienced temperatures of 37.5°C in July 2022 and 36.4°C in July 2023, both recorded at central monitoring stations. The current 0% implied probability suggests the market may be pricing in either an unusually cool July or settlement uncertainty. Traders should note that Haneda Airport's coastal location typically records temperatures 1–2°C lower than central Tokyo due to maritime influence, a material factor when assessing whether extreme heat scenarios materialise.

The Japan Meteorological Agency publishes seasonal forecasts and weekly heat advisories; their mid-July 2026 outlook will be the primary catalyst for probability shifts. El Niño or La Niña conditions, if present, influence Pacific typhoon activity and upper-air patterns affecting July temperatures. Traders should monitor the JMA's official forecast releases and any significant atmospheric pressure systems developing in late June, as these determine whether anomalous heat or cooler-than-normal conditions prevail during the settlement window.

Methodology

This overview of Highest temperature in Tokyo on July 28? 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.

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. 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.

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).