Highest temperature in Wellington on July 21?

Platform comparison

Market context

Wellington’s highest temperature on 21 July 2026 will be recorded at the Wellington International Airport Station, with the market resolving based on Wunderground’s daily maximum in degrees Celsius. Today, the city is experiencing 15°C with strong south-south-westerly winds and 72% humidity, conditions typical of midwinter in New Zealand’s capital [2]. The crowd-implied probability of 0% YES suggests traders are confident the temperature will not exceed the threshold set for a “YES” outcome, likely a high value inconsistent with historical winter peaks.

Historically, Wellington’s July maxima rarely exceed 12°C, with the 2026 seasonal outlook indicating temperatures near or below average for the west of the North Island [4]. On Polymarket, the 12°C range holds 100% probability, reinforcing that traders view higher thresholds as implausible given typical winter form and recent atmospheric patterns [1]. Comparable cases from previous winters show maxima clustering between 7°C and 12°C, with extremes above 15°C being rare anomalies driven by rare northerly surges.

Traders should monitor real-time Wunderground updates for the day’s peak, as well as NIWA’s daily weather bulletins for any sudden shifts in wind direction or cloud cover that could elevate temperatures [4]. The settlement window closes at 12:00 UTC on 21 July 2026, so any late-morning northerly wind change could act as a catalyst, though current Met Office forecasts show only a 10% rain chance and stable pressure [3]. No suspensions or injuries apply here—this is purely a function of atmospheric dynamics and historical winter norms.

Sources: 1 · 2 · 3 · 4

Methodology

Football-specific comparison page for Highest temperature in Wellington on July 21?. 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.

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.

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.