Highest temperature in Kuala Lumpur on August 3?

Platform comparison

Market context

Polymarket is pricing this contract at **0% YES**, so the market is currently treating a high-end Kuala Lumpur temperature reading as effectively unpriced even though the settlement source is a specific airport station, not the city generally. Because the outcome is based on the **highest temperature recorded at Kuala Lumpur Intl Airport Station** on 3 August 2026 and settles from Wunderground in **°C**, the relevant range is the airport’s daytime maximum, with traders holding **USDC** on Polygon through conditional tokens rather than betting on a generic city forecast.

The historical frame is straightforward: Kuala Lumpur’s August climate is typically hot, with nearby forecast services pointing to daily highs around **32–33°C** and August averages close to **91°F** or **33°C**. AccuWeather’s August outlook for Kuala Lumpur shows highs between **88°F and 93°F** and an average high of **91°F**, while other August guides place Kuala Lumpur’s usual highs near **32°C**. That puts the likely settlement band in the low-30s Celsius, making anything materially above that depend on a hotter-than-normal reading at the airport rather than the broader metro area.[1][15][18]

For catalysts, traders should watch the intraday temperature path, any thunderstorm timing, and whether rain arrives early enough to cap the day’s peak before the noon UTC settlement window closes. Current forecast services show mixed cloud, humidity, and thunderstorm risk in Kuala Lumpur, with hourly readings around **77°F** this morning and day forecasts still reaching the low-90s Fahrenheit, so the main dependency is whether cloud cover or showers suppress the maximum at Kuala Lumpur International Airport rather than in central Kuala Lumpur.[6][7][13]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). That keeps the comparison honest — a single canonical probability across the row, with the venue-by-venue trade-offs spelt out in the columns next to it.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

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.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

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.