Highest temperature in Seoul on June 5?

Market context

On 5 June 2026, the highest temperature recorded at Incheon International Airport Station will determine which temperature band resolves YES. The settlement uses Wunderground historical data for that specific location and date, measured in Celsius. Early-June Seoul typically experiences early monsoon conditions with mean highs around 26–28°C, though variability is substantial depending on whether subtropical high-pressure systems dominate or frontal systems bring cooler air from the north.

The 0% crowd probability suggests traders are either uncertain about which temperature band the market offers, or the resolution mechanics remain unclear to participants. Historical June temperatures at Incheon show occasional peaks above 30°C during heat waves, but also days where cloud cover and precipitation keep highs in the low-to-mid 20s. Comparable weather markets on this date would benefit from reviewing Korea Meteorological Administration forecasts and seasonal patterns; June sits at the threshold between spring and summer monsoon onset, making it less predictable than July or August.

Key catalysts include the official Korea Meteorological Administration seasonal outlook (typically released in late April) and any El Niño or La Niña signals that influence East Asian pressure patterns. Real-time monitoring of upper-level ridge positioning and tropical cyclone activity in the Western Pacific during late May and early June will sharpen forecasts. Traders should verify which specific temperature bands the market offers before committing, as the current 0% reading may reflect ambiguity about available resolution categories rather than genuine consensus on the day's weather outcome.

Methodology

This overview of Highest temperature in Seoul on June 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

Resolution source: This market settles from the official publication at https://www.wunderground.com/history/daily/kr/incheon/RKSI. A proposer submits the result to the UMA Optimistic Oracle on Polygon, the two-hour challenge window opens, and the smart contract pays out in USDC.

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. PolyGram has a different geo footprint.

Can I trade anonymously?

Pseudonymously, yes — up to the KYC threshold. PolyGram 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. PolyGram 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.

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).