Highest temperature in Seoul (Incheon) on August 3?

Platform comparison

Market context

Incheon’s airport temperature on 3 August is being shaped by the same nationwide heatwave that has pushed the capital area into the high 30s in forecasts, with Seoul and neighbouring cities under heatwave warnings and daytime highs around 37°C in several Korean outlets’ KMA-based reports.[1][2][5] For this market, the key point is that the settlement source is the *Incheon Intl Airport Station* reading on Wunderground, not Seoul city proper, so sea breeze, cloud cover and any afternoon showers matter as much as the broader capital-area headline.

The historical frame is straightforward: early-August highs in Seoul are usually well into the 20s Celsius, but recent forecasts point materially hotter than average conditions, and August records in the capital region can reach the high 30s.[4][16][17] That makes a zero-priced “YES” on an extreme outcome look like a market that is leaning on the most severe tail, rather than the central forecast. In practice, traders should read this as a temperature-distribution question: if Incheon tops out near the official forecast high of about 34°C, the upper bands should remain less likely than the broader heatwave headlines suggest.[5][12]

The main catalyst to watch is the evolving KMA-led forecast flow for the capital area and west coast, especially any updates on cloud, showers and timing of peak heat during the day.[5][9][12] Recent reporting says the peninsula remains under the influence of the North Pacific high, with mostly clear weather and daytime highs of 33–39°C, while some forecasts also flag rain in Incheon and nearby areas that could restrain the maximum temperature.[9][12] If the rain arrives earlier or lasts longer than expected, the ceiling for the day’s high at Incheon airport could come in below the most aggressive heatwave scenarios.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Seoul (Incheon) on August 3? 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 Trump Prediction provide a 0%-fee route into the same order book.

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

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

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.

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.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.