Highest temperature in Kuala Lumpur on July 19?

Platform comparison

Market context

Kuala Lumpur's equatorial climate delivers consistent heat year-round, with July sitting firmly within the southwest monsoon season. The highest temperature recorded at Kuala Lumpur International Airport on 19 July 2026 will determine which range settles this market, with Wunderground's historical data serving as the authoritative source. Currently priced at 0% YES on Polymarket, the contract reflects either extreme confidence in a specific outcome or minimal trading activity; traders settling positions would need to bridge the USDC liquidity on Polygon to move the conditional tokens.

Historical records from the airport station show July highs typically cluster between 32–34°C, with occasional peaks reaching 35°C during particularly intense heat waves. The 0% probability suggests the market may be pricing in a narrow band—likely the most frequent outcome—with traders treating alternative ranges as negligible. Comparable July days at the station over the past decade have rarely exceeded 35°C, establishing a baseline for assessing which temperature bracket represents the true consensus expectation.

Traders monitoring this contract should track the Malaysian Meteorological Department's monsoon forecasts and any El Niño or La Niña updates from late June, as these influence regional temperature patterns. Cloud cover during the southwest monsoon typically moderates afternoon peaks, though occasional clear days can push readings higher. Real-time weather data from mid-July will sharpen probability estimates as settlement approaches, particularly if anomalous heat systems develop across Southeast Asia in the weeks prior.

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

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 Kalshi UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi UK 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.