Highest temperature in Wellington on August 10?

Platform comparison

Market context

Wellington’s warmest August readings are usually modest, and the current market starts from a low base because the city’s August climatology clusters around 11–12°C for daytime highs, with long-run averages and weather-history pages pointing to a narrow late-winter range rather than frequent spikes. That makes a **0% YES** crowd price less surprising if traders are anchoring to the expectation that the highest temperature logged at Wellington Intl Airport on 10 August will sit in the lowest bands rather than break meaningfully higher than normal August conditions.[1][6][19]

For context, recent daily observations at Wellington show mid-single to low-teens Celsius highs across early August 2026, including 8 August at 55°F and 9 August at 50°F, which reinforces the idea that the market is leaning on a cool, settled winter profile rather than an outlier warmth event.[7][8] Comparable August history also shows that Wellington can briefly reach the mid-teens, but those warmer cases are still uncommon relative to the broader month, so a trader reading this market should focus on whether the airport station produces a one-day rebound above the usual August ceiling.[1][11][13]

The main catalyst is the actual Weather Underground daily observations feed for Wellington Intl Airport, not broader city forecasts or summary panels, so the key dependency is the intraday evolution of the station report itself up to the settlement cutoff.[3][7] Any short-term change in sun, wind, or passing fronts will matter more than generic monthly outlooks, and forecast pages currently point to highs around 50–60°F for August 2026, which keeps the market tied to whether the day can print a value near the top of that range rather than the median.[17]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Wellington on August 10? 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

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

UK Frequently Asked Questions

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.

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.

How fast do political markets react to news?

High-liquidity markets move within seconds to minutes. A Trump tweet on the economy can shift the "Trump 2024" market 2-5 points before mainstream media has written anything.

Are UK election prediction markets available from the UK?

Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.