Highest temperature in Seoul on June 8?

Platform comparison

Active sub-markets

Market context

On 8 June 2026, the highest temperature recorded at Incheon International Airport's weather station will determine the settlement outcome for this market. The resolution uses Wunderground historical data, which aggregates official meteorological readings throughout the day. Unlike some weather markets that settle on forecast models or airport-reported daily highs, this one relies on granular recorded data, making it sensitive to measurement timing and station-specific microclimates around the airport's location in Gyeonggi Province.

Seoul's early June climate typically ranges between 20–28°C, though heat waves can push readings above 30°C. Historical June 8th data shows considerable year-to-year variation; the 2023 reading was 26.1°C whilst 2022 recorded 23.5°C. The 0% crowd probability suggests traders are pricing in either extreme confidence in moderate conditions or sparse liquidity on this niche settlement date. Kalshi's weather markets often attract tighter spreads on major US cities; this Seoul-specific market shows the liquidity fragmentation across regional books. Polymarket's decimal-odds display and Betfair's lay functionality would reveal whether the 0% reflects genuine consensus or thin order books, a distinction harder to assess on platforms with limited depth transparency.

Relevant catalysts include the Korea Meteorological Administration's seasonal forecasts, typically updated monthly, and any tropical systems tracking toward the Korean peninsula in early June. El Niño or La Niña patterns influence regional temperature anomalies. Traders should monitor late May weather patterns; a sustained warm spell across East Asia would shift probabilities upward, whilst any cold-air intrusions from the north would support lower ranges. Settlement occurs at 12:00 UTC on 8 June, allowing Wunderground's historical database time to populate complete daily records.

Methodology

This page compares Highest temperature in Seoul on June 8? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. Live odds come from the Polymarket order book; the other venues' contract details are maintained manually because their APIs aren't directly comparable. Every CTA routes to Polymarket Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Is this market available outside the US?

Polymarket Alternative 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.

What does it cost to trade on Polymarket Alternative UK?

Zero. Polymarket Alternative UK routes every order to the live Polymarket order book; the only cost is the Polygon network fee, typically under $0.01 per transaction.

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 Alternative 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.