Highest temperature in Busan on August 1?

Platform comparison

Market context

Polymarket has this contract at **0% YES** today, so the on-chain price on Polygon implies virtually no one is paying up for a Busan high that lands in the market’s winning temperature range. Because settlement uses USDC and conditional tokens, the practical question for traders is not whether Busan will feel hot, but whether the highest reading at Gimhae Intl Airport Station before the noon UTC cut-off prints into the specified band on Wunderground. Busan’s August climate is usually warm and humid, with average highs clustered in the mid-20s Celsius to low-30s Celsius depending on the source, which is why the market is framed around an exact daily maximum rather than a broad seasonal average.[1][5][6][13]

The historical lens is still important because Busan can occasionally overshoot its usual summer range when regional heat builds. Recent reporting has shown South Korea in a severe late-July heatwave, with Busan itself reaching 38.8°C in one 2026 report and nearby stations also posting extreme readings, illustrating that coastal cities are not immune to sharp spikes when the synoptic set-up is right.[10][17][20] For a market priced at zero, traders usually watch whether the day is starting from a benign early-morning base or from an already stressed atmosphere, since a strong overnight floor can help push the day’s maximum higher.

The main catalysts are straightforward: the evolution of the Korean heat dome, the timing of cloud cover or rain bands, and any official meteorological updates that affect the day’s temperature trajectory. AccuWeather and climate normals suggest Busan’s August highs commonly sit around 30°C to 31°C, but the recent July extremes show how quickly forecasts can be overtaken when the North Pacific High and Tibetan High trap hot air over the peninsula.[1][13][20] With settlement tied to Wunderground’s recorded high at Gimhae, the key for Polymarket users is the actual station print, not citywide headlines or marine moderation alone.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Busan on August 1? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to PolyGram, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is PolyGram. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like PolyGram trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.