Highest temperature in Wellington on August 5?

Platform comparison

Market context

Wellington’s airport temperature on 5 August is usually shaped less by summer warmth than by a winter ceiling near the low teens Celsius. Multiple forecast sets for that date cluster around highs of about 10–13°C, with current guidance split between a mild, breezy day and a cooler, cloudier outcome[2][6][9]. That makes the market’s 0% YES price stand out: it is effectively pricing in an outcome at the extreme low end of the settlement bands, rather than the centre of the forecast distribution[2][6].

For context, Wellington’s August climate is typically stable, with average highs around 12°C and lows around 9°C, so a reading above the top of the usual range would need an unusually warm air mass and limited marine influence[9][14][18]. The current airport observation is already cool and breezy, with BBC Weather reporting 10°C at Wellington/Intl alongside northerly winds and high humidity, while NZ Herald is flagging strong northerlies easing later in the day[3][4]. That combination usually favours modest afternoon gains, not a large spike.

The main catalyst to watch is the day-of forecast evolution at Wellington International Airport, especially whether northerly flow strengthens or cloud and precipitation suppress the daytime maximum[3][4][5]. Traders should also track the Wunderground history page itself as the resolution source, because the market settles on the highest airport temperature recorded during the full day rather than a generic city forecast[1]. In practice, the key dependency is whether the airport briefly reaches a higher band during a clearer or windier window, or remains anchored near the low teens shown in current forecasts[2][6][9].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page tracks Highest temperature in Wellington on August 5? 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.

FAQ

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.

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.

Which political events have the biggest volume?

US Presidential election, party nominations (DNC/RNC), Senate majorities, individual state outcomes (Pennsylvania, Michigan, Wisconsin), and major European elections. Peak markets reach $50-500M per event.