Highest temperature in Busan on August 18?

Platform comparison

Market context

On 18 August 2026, the highest temperature recorded at Gimhae International Airport in Busan will be measured and compared against predefined Celsius ranges. The resolution will draw from Weather Underground's Daily Observations table rather than summary figures, establishing a precise baseline for settlement. Busan's August climate typically sees daytime highs between 28–32 °C, though heat waves can push readings above 35 °C. The current crowd probability of 0% suggests traders expect the temperature to fall outside whichever upper range this market's resolution brackets specify, though without visibility of those exact thresholds, the assessment remains preliminary.

Historical August temperatures in Busan show considerable year-to-year variation. The Korea Meteorological Administration records indicate that whilst extreme heat events (above 36 °C) occur roughly once every three to five years during summer, they are not the norm. Comparable markets tracking Korean summer temperatures have typically resolved in mid-range brackets, reflecting the region's maritime influence and monsoon patterns. The 0% probability may reflect either a very high temperature threshold or trader unfamiliarity with Busan's seasonal norms.

Traders should monitor the Korean Meteorological Administration's seasonal forecasts and any typhoon activity in the Western Pacific during early August 2026, as tropical systems can suppress temperatures significantly. El Niño or La Niña conditions, if present, would influence broader East Asian weather patterns. Weather Underground's data feed reliability and any station maintenance or recalibration should be tracked, given the explicit reliance on its Daily Observations table for settlement.

Methodology

This overview of Highest temperature in Busan on August 18? 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.

UK Frequently Asked Questions

Do I need to KYC for Polymarket Tax 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.

Is Polymarket regulated by the UKGC?

No. Polymarket is not licensed by the UK Gambling Commission (UKGC). It is a decentralised prediction market operated under US regulation. UK traders can use it but do not benefit from UKGC dispute resolution or player protection requirements.

What are the HMRC tax rules on Polymarket profits for UK traders?

Polymarket profits are treated as cryptocurrency disposal events by HMRC. Each USDC settlement is a taxable event subject to Capital Gains Tax (CGT). For 2026/27, the CGT rate is 18% (basic rate) or 24% (higher rate). The annual CGT exemption is £3,000. Report via HMRC Self Assessment if your total crypto gains exceed £3,000 or proceeds exceed £50,000.

Does Polymarket KYC apply to UK users?

Yes. Polymarket requires KYC (Know Your Customer) verification for all users, including UK residents. You must provide a government-issued photo ID and a selfie. The process typically takes 5–10 minutes via their ID verification provider.

What is the legal difference between Polymarket and Betfair Exchange for UK traders?

Betfair Exchange is UKGC-licensed, meaning UK consumer protections apply and winnings are typically tax-free. Polymarket is not UKGC-licensed — it operates under decentralised blockchain rules. Profits from Polymarket are subject to HMRC CGT as crypto disposals. Choose based on your regulatory preference and tax situation.