Highest temperature in Kuala Lumpur on July 30?

Platform comparison

Market context

Polymarket currently prices this Kuala Lumpur airport temperature contract at **0% YES**, so the market is implying the highest temperature on 30 July will *not* land in the YES band. On Polymarket, holders trade USDC-backed conditional tokens on Polygon, so the relevant question is the exact station reading that Wunderground posts for Kuala Lumpur Intl Airport before the 12:00 UTC settlement cut-off, not the city forecast in general.

The historical setup argues for caution around low convective ceilings and the airport’s inland heat profile. July forecasts for Kuala Lumpur commonly cluster around the low-30s Celsius, with daily highs in the 32–34°C range and warm, humid nights, while recent model guidance shows a similar pattern for today, including around 31–32°C in the afternoon and a material rain chance.[1][2][3][5][10] For a temperature-range market, that matters because a one- or two-degree difference can move the outcome across adjacent bands, and airport observations can sit slightly below headline city forecasts if showers or cloud build before the daily maximum.

The main trader watch-list is timing and local weather evolution: afternoon thunderstorm development, rainfall intensity, and whether the day’s high is achieved before cloud cover suppresses further warming. The available forecasts point to patchy rain or thunderstorms and highs around 32–33°C, with some models showing 90% precipitation odds and others only light rainfall, so the spread across forecasters is wider than the market’s current 0% pricing suggests.[2][6][9][10] As always, the last word is the station history page on Wunderground, because the resolution depends on the highest observed airport temperature, not the forecast peak.[1]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Kuala Lumpur on July 30? 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 Polymarket Scam?, which mirrors the Polymarket order book at 0% fees.

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

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 Polymarket Scam?. 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.

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.

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.