Highest temperature in Seoul on June 22?

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Market context

The relevant real-world event is the **highest daytime temperature recorded at Incheon International Airport in Seoul on 22 June 2026**, with the market settling on the Wunderground history page rather than any broader citywide reading. In late June, Seoul’s climatology is already warm: average highs rise through the month from about **25°C to 27°C**, and daily highs rarely sit far outside the upper 20s Celsius[1]. With the market currently at **0% YES**, the pricing implies traders are not assigning any weight to the event landing in the specified settlement band, which is unusual given how often a single hot afternoon can lift airport maxima in a Korean summer.

Historically, the cleanest frame is not a political analogue but a temperature-distribution one: late-June Seoul routinely prints highs in the mid-to-upper 20s Celsius, while the upper tail can reach the high 30s in hotter spells[1][3]. South Korea has also seen a marked intensification of heat extremes in recent years, with commentary on official records pointing to a steady rise in heatwave days and a hotter 2024 summer than earlier decades[2]. That makes the market’s outcome highly sensitive to whether 22 June falls on the warm side of the season’s normal range or on one of the more extreme, less frequent spikes.

The main catalyst is the **day-of weather setup** rather than any scheduled declaration: traders should watch the short-range forecast for Seoul, cloud cover, rain chances and wind direction, plus whether the pre-noon warming phase looks strong enough to push the airport station towards its daily maximum before the settlement window closes. Recent historical data show Seoul has already produced a **91°F (about 33°C)** reading on 19 June 2026, so a warm start to the week would keep the upside open if the synoptic pattern stays dry and sunny[5].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Seoul on June 22? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

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On Election Predictions UK, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

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.

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.