Highest temperature in Helsinki on July 13?

Platform comparison

Market context

Helsinki Vantaa Airport is expected to record its peak daily temperature on 13 July 2026, with the market currently pricing a 0% chance of any outcome other than the undefined or unlisted ranges, despite active trading on specific Celsius thresholds. Polymarket data shows 23°C as the frontrunner at 47% probability, followed by 24°C at 22%, indicating the crowd anticipates a warm but not extreme summer day typical for mid-July in southern Finland [1].

Historically, Helsinki’s highest temperatures on 13 July cluster between 22°C and 25°C, with extremes above 28°C occurring rarely—only three times since 1960. The current 0% YES probability for unspecified ranges likely reflects a market structure where “YES” is tied to an unattainable or misdefined condition, while the real betting activity concentrates on the discrete temperature bins. Comparable July 13 readings in recent years (2023: 24.1°C; 2022: 22.8°C) support the 23–24°C consensus [1].

Traders should monitor real-time updates from Wunderground, the official resolution source, which will publish the day’s highest recorded temperature at EFHK by 12:00 UTC on 13 July. Current BBC Weather shows 16°C at 5 PM UTC with falling pressure and south-easterly winds, suggesting limited further warming today [2]. No weather alerts or model revisions have been announced, but a shift in the jet stream or a heat dome from continental Europe could push temperatures toward the 24°C upper bound before settlement.

Sources: 1 · 2

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.

What's the difference between match odds and outright odds?

Match odds cover a single game ("Bayern beats BVB"). Outright odds are long-term aggregates ("Bayern wins the league"). Outright markets have deeper liquidity; match markets have faster resolution.

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.