Highest temperature in Seoul (Incheon) on August 7?

Platform comparison

Market context

Seoul’s weather on 7 August is being shaped by an active late-summer heatwave, with local reporting saying daytime temperatures could reach 39°C and that heat warnings have been expanded across the greater Seoul area.[2] That makes the market’s current 0% yes price look anchored in the idea that an outcome high enough to land in the upper temperature bands is already baked in, rather than in any expectation of a surprise cool spell.[2][1]

Historically, August in Seoul is hot and humid, but the month still usually sits far below the sort of extreme maximums that would matter here: AccuWeather’s August outlook puts average highs around 84°F, while WeatherSpark says daily highs in August typically run from about 85°F down to 81°F, rarely exceeding 91°F.[1][13] That means a reading in the high 30s Celsius would be well above normal, so the market should be read as a test of whether the present heat surge can hold through the measurement window rather than as a routine summer forecast.[1][13]

For traders, the main catalyst is the official station observation at Incheon Intl Airport, because the market settles on the highest temperature in Weather Underground’s Daily Observations table, not the summary high-and-low display. The key dependency is whether the current heat peak is recorded before conditions ease later in the day; SBS says temperatures are expected to improve slightly from tomorrow, with weekend highs in Seoul dropping back to around 34°C.[2] In practice, the only meaningful driver now is the live observation stream and any late-day spikes or thunderstorm-driven swings that could change the station’s recorded maximum.[2][15]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Seoul (Incheon) on August 7? 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.

UK Frequently Asked Questions

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.

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.

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.

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.