Highest temperature in Seoul (Incheon) on August 9?

Platform comparison

Market context

The real-world driver here is the day’s maximum at Incheon International Airport Station, and the market is already pricing in an extreme outcome at **0% YES**, which leaves very little room unless the station posts a clearly high-end reading later in the day. The broader Seoul forecast is hot but not exceptional: AccuWeather has 93°F/34°C for Sunday with a shower risk, Time and Date shows 92°F/33°C, and the World Weather Information Service also points to 34°C, all of which suggest a warm but not obviously record-breaking setup.[2][3][6]

For historical framing, the more useful comparison is that August in Seoul is normally the peak heat season rather than an outlier month, with outside sources noting that August is typically the hottest period in South Korea and average Seoul temperatures sit well below today’s forecast highs.[18][17] That matters because the market resolves from a specific station observation table, not a citywide summary, so traders should think in terms of whether Incheon Airport can spike above the forecast envelope rather than whether Seoul feels broadly hot.[16]

The catalyst to watch is the intraday evolution of the airport reading through Weather Underground’s Daily Observations table, especially any afternoon warm-up, sea-breeze moderation, or passing shower effects that can cap the top temperature. Recent regional coverage from SBS said Seoul had lifted severe heatwave warnings but still faced highs around 34°C and scattered showers, which is the kind of pattern that can produce a middling official maximum even when headline heat looks strong.[4]

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 (Incheon) on August 9? 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

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

UK Frequently Asked Questions

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.

Are UK election prediction markets available from the UK?

Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.