Highest temperature in Seoul on June 26?

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Market context

The real-world event driving this market is the daily peak temperature recorded at Incheon International Airport on 26 June 2026, which historically averages 26°C in Seoul during June with low heat and humidity[1]. Long-term averages show daytime highs typically range between 19°C and 28°C, while recent data from early June 2026 recorded a maximum of 34.0°C on 19 June, indicating that extreme spikes are possible but not standard[2][8]. The current crowd-implied probability of 0% for a higher-than-expected range aligns with these baselines, as June remains warm but not extreme compared to the intense tropical heat of July and August, where averages climb to 84°F–91°F[2][7].

Traders should monitor the onset of Korea’s monsoon season, which usually begins in late June and brings increasing humidity and short afternoon showers that rarely disrupt entire days[2]. Key catalysts include official forecasts from the Korea Meteorological Administration, which currently show clear conditions with temperatures at 28°C and zero precipitation probability for the next 18 hours[4]. Recent weather reports from 25 June 2026 noted heavy downpours in the afternoon with daytime highs of 26°C, suggesting that rain events may cap temperature peaks even if humidity rises[10]. Accessibility for this market is influenced by regulatory frameworks: German GlüStV implications and US CFTC reach mean that platforms offering “no-KYC up to $1,500” allow traders to participate without identity verification for smaller stakes, though larger positions may require compliance checks depending on jurisdiction.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Is this market available outside the US?

Polymarket KYC UK is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

Not under $1,500 of lifetime trading volume. Above that threshold, Polymarket KYC UK triggers a quick verification flow that finishes in minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.