Pronóstico: Highest temperature in Sao Paulo on June 30?

Platform comparison

Market context

On 30 June 2026, the highest temperature recorded at São Paulo–Guarulhos International Airport will determine the outcome of a prediction market where the crowd currently assigns zero probability to any “yes” result. This implies traders believe the day will be exceptionally cool, likely due to the intense polar air mass that has recently swept across southern Brazil, driving temperatures down drastically in major capitals.

Historically, June in São Paulo is the coldest month of the year, with average highs around 72°F (22°C) and lows near 56°F (13°C), while the city’s record June low occurred on 30 July 2021 at 3.1°C. Recent data shows the highest temperature in the last 15 days was 78.8°F (26°C) on 22 June, but a YouTube report confirms São Paulo recorded its lowest June temperature in 30 years just days ago, reinforcing the current 0% market sentiment.

Traders should monitor official weather bulletins from Brazil’s National Meteorology Institute (INMET) for updates on the polar front’s duration and any sudden shifts in cloud cover or wind patterns that could trigger a brief warm spell. A recent INMET advisory, cited by local news outlets, warns the cold mass may persist through early July, making a significant temperature spike on 30 June highly improbable unless an unexpected northerly wind surge occurs.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: 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 (US-focused) or Manifold (play-money).

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.

Can I import form data and lineups?

This page shows the live Polymarket quote as an implied probability. Form data and lineups must be researched separately via sports data providers (e.g. Soccerway, ESPN, FBref) — we surface the market probability, not the sport analysis.