Highest temperature in Seoul (Incheon) on August 5?

Platform comparison

Market context

Seoul’s weather on 5 August is the underlying event, with the market resolving off the highest temperature recorded at Incheon Intl Airport Station, not the city forecast as a whole. Early pricing at **0% YES** implies traders are treating a qualifying reading for the chosen temperature band as very unlikely, even though the day falls in the peak of the Korean summer heat season and forecasts are pointing to widespread heat across the capital area.[1][2][15]

That framing matters because August in Seoul often produces highs around the upper 20s to low 30s Celsius, with occasional spikes into the high 30s when heat alerts are in force.[2][15][18] A comparable hot-season case is the present forecast set-up, where official and media forecasts are already warning of severe heat in the Seoul metropolitan area, including a daytime high of 38°C in Seoul itself.[1] By contrast, airport readings can run a little differently from central Seoul because of coastal influence, cloud cover, and local showers, so a market keyed to Incheon can settle below the headline city forecast even on a very hot day.[1][4][11]

The main catalyst to watch is the short-range forecast and any update to heat warnings from the Korea Meteorological Administration, alongside whether showers or marine-layer cloud affect western Incheon around the settlement period.[1][7][11] SBS English reported the severe heat warning and said intense heat should persist day and night in western regions, which is the clearest near-term driver for upside temperature risk.[1] Traders should also watch intraday changes in cloud, rain, and wind in western Seoul-Incheon observations, because those are the factors most likely to keep the airport’s maximum below the city-wide forecasts.[1][4][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Seoul (Incheon) on August 5? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Election Predictions UK provide a 0%-fee route into the same order book.

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.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

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 Election Predictions UK 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.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.