Highest temperature in Sao Paulo on June 30?

Platform comparison

Market context

The real-world event is the daily high temperature at São Paulo–Guarulhos International Airport on 30 June 2026, measured in degrees Celsius. Historical data shows July is São Paulo’s coldest month, with average highs around 22°C (72°F) and lows near 13°C (56°F), while June is similarly mild[4]. The city’s absolute record high is 38.5°C, recorded in November 2023, but June extremes rarely exceed 30°C[2]. A 0% crowd-implied probability for any temperature above 15°C suggests the market expects a notably cold day, possibly influenced by recent patterns: the highest temperature in the last 15 days was 26.1°C (78.8°F) on 22 June, while the lowest was 9.4°C (48.9°F) on 18 June[3]. This wide swing indicates volatility, yet the 0% probability may reflect overconfidence in a cold spell rather than historical June norms.

Traders should monitor Wunderground’s daily update for 30 June, specifically the peak temperature recorded at SBGR, as this is the official resolution source[8]. Key catalysts include overnight cloud cover, wind direction from the Atlantic, and any sudden cold-front activity typical of late June in southern Brazil. Recent weather reports note a 1.39-inch rainfall total in the past 15 days, which often suppresses daytime highs through increased humidity and cloud density[3]. No major coaching changes or team absences apply here—this is purely atmospheric—but traders must watch for real-time Wunderground alerts before the 12:00 UTC settlement deadline. A beat-reporter source on São Paulo microclimates, such as local meteorologist João Silva’s June 2026 forecast, would clarify whether a cold anomaly is expected, though no such article is currently cited in available search results.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Sports-specific comparison page for Highest temperature in Sao Paulo on June 30?. Polymarket's live quote (Polygon order book) plus platform attributes for the three reference venues. Sports markets reward liquidity — Polymarket and Betfair are materially deeper than Kalshi or Manifold.

Resolution & payout

Sports markets typically settle on official final-whistle plus league confirmation. Polymarket uses UMA Optimistic Oracle with a source URL per contract — usually official league data feeds or ESPN/Soccerway. Two-hour dispute window, then smart-contract payout in USDC.

FAQ

When do sports markets resolve?

Typically within hours of the official final whistle. Polymarket uses UMA Optimistic Oracle with source URLs pointing at official league data feeds — e.g. the Premier League for EPL markets, UEFA for Champions League, FIFA for World Cup.

Can I bet on individual matches?

Yes, Polymarket lists every major Premier League / Champions League / World Cup match as its own market. Liquidity varies — top matches like El Clásico or a semi-final often have six-figure pools, lower-league games closer to three-figure.

What are live sports odds on Polymarket?

Some top-tier matches stay open during play — you can trade the half-time probability in the 70th minute. Polymarket mid-prices update second-by-second; any frontend mirroring the order book shows the same movement.

Which sports markets are available?

Football (soccer) dominates — Champions League, World Cup, Premier League, La Liga, Bundesliga — followed by NFL, NBA, tennis Grand Slams, Formula 1, boxing/MMA. Resolution via official league source confirmation.

How fast do sports winnings settle?

Once the official league outcome is logged in the UMA Oracle (typically 1-2 hours after the final whistle), Polymarket's smart contract triggers USDC payout. To your wallet within minutes.