Highest temperature in Kuala Lumpur on August 10?

Platform comparison

Market context

Polymarket currently prices the **33°C** band as the front-runner for Kuala Lumpur’s highest temperature on 10 August, with the market also giving substantial weight to **34°C**, and shares settle in **USDC** on **Polygon** through conditional tokens rather than a cash guess on the weather itself.[12] For traders, the practical question is which temperature bucket the **Weather Underground Daily Observations** table will record as the day’s maximum at Kuala Lumpur Intl Airport Station, because that field is the resolver, not the summary high/low display.[8]

That framing matters because Kuala Lumpur’s August climatology sits close to the boundary between the low- and mid-30s Celsius. Historical August averages cluster around **30–31°C** for highs, with common daily peaks near **32°C**, while longer-run records show occasional excursions to the high 30s in extreme heat events.[1][3][4][10] In other words, a market that is only modestly above the climatological mean can still move sharply if the afternoon maximum lands one degree higher or lower than expected, especially when the settlement bands are narrow.

The main catalysts are the local forecast, cloud cover, rainfall timing, and any thunderstorm development, because these determine whether solar heating is capped before the station’s peak reading. Malaysia’s meteorological forecast for Kuala Lumpur calls for **no rain** and a **33°C max** on 10/08/2026, while private forecasts are also around the low 90s Fahrenheit with isolated thunderstorms in spots, so traders watching live price action will be tracking whether convection arrives early enough to suppress the station high or late enough to leave the midday maximum intact.[9][14] Weather Underground’s daily observations will only settle the contract once the station’s recorded high is in, so the on-chain price can remain sensitive until the day’s full observation cycle is complete.[8]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Kuala Lumpur on August 10? 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 Kalshi UK, 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.

UK Frequently Asked Questions

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.