Highest temperature in Helsinki on July 13?

Platform comparison

Market context

Helsinki's weather on 13 July 2026 will be measured at Vantaa Airport, the primary meteorological station for the region. July is Finland's warmest month, with historical daily highs typically ranging from 20–24°C, though extremes have occasionally pushed toward 30°C during heat waves. The settlement mechanism relies on Wunderground's historical database, which pulls official Finnish Meteorological Institute data recorded at the airport station throughout the calendar day.

The current 0% implied probability suggests traders are pricing in either exceptionally cool conditions or systematic uncertainty about the market's resolution mechanics. Historically, Helsinki has recorded July temperatures exceeding 25°C in roughly one year per decade; the all-time July high at Vantaa stands at 33.2°C (set in 1972). Recent summers have shown increased volatility, with 2023 and 2024 producing several days above 25°C during mid-July, though sustained heat waves remain episodic rather than routine.

Traders monitoring this market should track European weather pattern forecasts from mid-June onwards, particularly the position of high-pressure systems over Scandinavia. Jet stream positioning and Atlantic storm tracks will determine whether continental warm air reaches Finland or maritime influences keep conditions moderate. The settlement window closes at midday on 13 July, meaning overnight lows recorded after 12:00 UTC will not factor into resolution, creating a technical advantage for traders aware of Vantaa's diurnal temperature cycle.

Methodology

Football-specific comparison page for Highest temperature in Helsinki on July 13?. 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.