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Highest temperature in Busan on August 10?

"Highest temperature in Busan on August 10?" — odds, fees, regulatory status. Is Kalshi Legit as a Polymarket alternative.

32°C 99% 33°C 1% 24°C or below 0% 25°C 0% Volume: $66K Liquidity: $269K Closes: 10 Aug 2026
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Highest temperature in Busan on August 10?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via Is Kalshi Legit) Pick
polygram.ink (preferred broker)
99% 1% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle See live odds →
Polymarket (direct)
polymarket.com
99% 1% 0% Geo-blocked in US/UK/EU USDC, on-chain See live odds →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD See live odds →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR See live odds →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) See live odds →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
32°C99%
33°C1%
24°C or below0%
25°C0%
26°C0%
27°C0%
28°C0%
29°C0%
30°C0%
31°C0%
34°C or higher0%

Market context

Busan’s temperature on 10 August will be set by the highest reading logged at Gimhae Intl Airport Station in Weather Underground’s **Daily Observations** table, so the relevant number is the station maximum rather than any headline “Day High & Low” figure. In practical terms, the market is really asking whether the day tops out in the **high 20s, low 30s, or above**, with the current crowd price of 0% for YES implying traders see no live path to the named outcome range. Forecast context points to a warm, humid midsummer profile: AccuWeather and Timeanddate both put Busan’s August highs around the mid- to upper-20s Celsius, while recent Busan-specific forecast pages show around 28–31°C for 10 August and some thunderstorm risk.[1][8][12][15]

The historical frame is straightforward: August is Busan’s hottest month on average, but daily peaks can vary sharply with cloud, sea breeze, and convective rain. Climate references put typical August highs near 29–30°C, with the warmest days often reaching the mid-30s, and Busan’s all-time August 10 high cited in climate tables is 34.6°C, which is materially above the current forecast band.[7][11][18] That history means probabilities should be read as a distribution over a fairly tight summer range rather than as a binary hot/cool call, especially when thunderstorms can cap daytime maximums even in a heatwave.[16][18]

For accessibility and compliance, the market sits inside a broader regulatory frame that can matter to traders even when the forecast itself is simple. A German-accessed venue can trigger scrutiny under the **GlüStV** because prediction markets may be treated as gambling-like products, while the **US CFTC** has broad reach over event contracts offered to US persons, especially where they resemble derivatives on contingent outcomes. “No-KYC up to $1,500” generally means a user can transact without identity verification until cumulative activity hits that threshold, but it does not remove geo-restrictions, sanctions screening, or the possibility that access rules change by jurisdiction or platform policy.[3]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This overview of Highest temperature in Busan on August 10? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.

Resolution & payout

On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.

FAQ

Is Polymarket legal in my country?
Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Is Kalshi Legit has a different geo footprint.
Do I need to KYC for Is Kalshi Legit?
Not for lifetime trading volume under $1,500. Above that threshold, a quick KYC flow kicks in — ID, selfie, approximately 5-10 minutes. The threshold matches FATF travel standards for unregulated crypto platforms.
How are winnings taxed?
Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
What happens during a tax audit?
You're responsible for documenting your trades. Is Kalshi Legit exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
What if regulation changes?
If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Kalshi Legit would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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