Highest temperature in Singapore on July 27?

Platform comparison

Market context

Polymarket is currently putting the Singapore Changi Airport high for 27 July into a fairly tight band, with **31°C** leading at **35%** and **30°C** close behind at **32%**.[1] On the user side, that means the contract is being priced as a standard USDC market on Polygon, with conditional tokens paying out $1 if the correct temperature band resolves from the Wunderground Changi Airport daily history page.[1]

That distribution is consistent with how Singapore often behaves in late July: hot, humid, and usually not far from the low 30s Celsius at the day’s peak. For a prediction market user, the key point is that the implied probability is not making a strong call on an extreme; it is treating a one-degree swing as the main uncertainty, which is typical when traders are anchoring to a narrow tropical range rather than to a wide weather dispersion.[1]

The main catalysts are operational rather than political: the day’s observed maximum at Singapore Changi Airport, any sudden convective rain, and whether the station’s afternoon reading tops out early or late before the settlement window closes at 12:00 UTC. Because resolution is tied to a single station and a specific daily history source, traders will watch the same intraday temperature feed that determines settlement rather than broader Singapore forecasts.[1]

Sources: 1

Methodology

This page reviews Highest temperature in Singapore on July 27? 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

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.

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.

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 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 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 Polymarket Scam? trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.