Highest temperature in Sao Paulo on August 7?

Platform comparison

Market context

São Paulo’s 7 August reading is trading like a nailed-on **25°C** outcome, with the market effectively pricing the top temperature band at near-certain probability and leaving the underdog elsewhere. The crowd-implied probability sits at **0% YES**, which is consistent with a market that has already converged on the same daily maximum shown in local forecasts and trader pricing, rather than any broader upside case.[1][3][10]

For a handicapper, the historical read is straightforward: São Paulo’s August climate is usually mild, with average daytime maxima in the low 20s Celsius, so a **25°C** cap is not an outlier and sits comfortably within the city’s seasonal range.[6][13] That is why the favourite is so dominant and why the main value discussion, if any, is contrarian rather than directional; the only plausible angle is a late-day overshoot from sun and delayed cloud cover, but the consensus already assumes a modest warm-up and full-sun conditions.[3][10]

The catalyst to watch is not a policy announcement or schedule change, but the intraday weather evolution and the resolution source itself. The market settles off the **Daily Observations** table at the São Paulo-Guarulhos station, so traders care less about headline summaries than about whether the station records a higher hourly print before the final data line for the day is published.[1] CGE’s morning bulletin pointed to stable conditions early, followed by showers and thunderstorms later, yet still capped the capital’s forecast near **25°C**, which reinforces the consensus and leaves value only in a contrarian move on a higher band if the airport station briefly runs warmer than citywide guidance suggests.[10]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Sao Paulo on August 7? 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 Who Will Win 2026, 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

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 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 Who Will Win 2026 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.