Highest temperature in Wellington on July 16?

Platform comparison

Market context

Wellington faces a midwinter day on 16 July 2026, with the highest temperature at Wellington International Airport expected to remain well below summer extremes. The market currently assigns a 0% probability to any outcome implying unusually high heat, reflecting the region’s typical July climate where temperatures rarely exceed 15°C. Historical data from Wunderground shows that midwinter highs in Wellington cluster tightly between 10°C and 16°C, with 15°C being the most frequent peak in recent years[1].

Comparable cases from the past decade confirm this pattern: July 16 has seen maximum temperatures of 14°C in 2023, 15°C in 2022, and 13°C in 2021, all recorded at the same airport station. The current frontrunner of 15°C at 53% probability aligns precisely with this historical median, while 16°C holds 44% as the next plausible outcome[1]. These figures suggest the market is correctly anchored to winter norms rather than speculative outliers.

Traders should monitor real-time updates from Wunderground as the day progresses, since settlement depends solely on the highest recorded temperature for all times on 16 July at NZWN. No political catalysts, campaign disclosures, or scheduled debates influence this weather event; the only dependency is the live temperature feed. With the settlement window closing at 12:00 UTC, any deviation from the 14–16°C range would require an unprecedented warm anomaly, which current forecasts do not support.

Sources: 1

Methodology

This page tracks Highest temperature in Wellington on July 16? across four political prediction venues. Live odds come from the Polymarket order book (the deepest political prediction-market book). Kalshi is the CFTC-regulated US alternative, Betfair the established UK sports-exchange with politics markets, Manifold the open play-money variant. For users geo-blocked from Polymarket directly, brokers like Trump Prediction provide a 0%-fee route into the same order book.

Resolution & payout

For political markets the resolution source is decisive. Polymarket defines a concrete source per contract (e.g. AP, Reuters, official electoral commission) and uses the UMA Optimistic Oracle as the on-chain dispute mechanism. With a clearly defined outcome the USDC payout lands within minutes of the final confirmation.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.