Pronóstico: Highest temperature in Tokyo on July 4?

Platform comparison

Market context

Tokyo’s July heat is a relentless, concrete jungle where mid-to-late month days routinely climb to 36–40°C with humidity exceeding 95%, making the 0% crowd-implied probability for a 26°C peak on 4 July 2026 appear deeply misaligned with reality[1]. Historical data confirms Tokyo Haneda Airport’s July highs typically range from 26°C to 33°C (76°–91°F), with overnight lows staying between 20°C and 26°C[3]. Japan’s all-time record of 41.2°C, set in Hyogo Prefecture in July 2025, underscores the region’s extreme volatility, while Tokyo’s average July temperature of 28.7°C further invalidates the notion that 26°C is an unlikely ceiling[6][8].

Traders must monitor Wunderground’s real-time updates for the Haneda station on 4 July, as the market resolves solely on the day’s highest recorded temperature in Celsius[1]. The settlement window ends at 12:00 UTC, meaning any afternoon spike between 11 AM and 6 PM—when peak temperatures typically occur—will directly determine the outcome[1]. Recent reports note Japan’s July average temperature hit a record high for the third consecutive year, suggesting a strong upward trend in thermal extremes that could push Haneda’s reading well above 26°C[8]. No injury or lineup news applies here, but the dependency on a single day’s snapshot demands vigilance for sudden heatwave announcements from the Japan Meteorological Agency.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Football-specific comparison page for Pronóstico: Highest temperature in Tokyo on July 4?. 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

Are prediction markets better than sports betting?

Prediction markets tend toward tighter odds than bookmakers because they use peer-to-peer exchange rather than bookmaker margin. On major matches, Polymarket quotes typically sit 2-5% closer to the true probability model than bet365 or DraftKings.

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.

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.