Highest temperature in Wellington on August 3?

Platform comparison

Market context

Wellington’s August weather is usually cool and changeable rather than strongly directional, with average highs around 12–14°C and frequent rain or cloud affecting daytime temperatures. Long-run climate summaries put Wellington’s August mean high at about 13.6°C, while other weather references cluster the month’s typical maximum near 12°C, so a result far above the low teens would require an unusual warm spell rather than a normal winter afternoon.[1][2][8]

For market framing, the 0% implied probability is easy to read against the station’s seasonal baseline: August highs in Wellington are normally tight around the low teens, and recent climate summaries describe the city as wet and relatively cold compared with the rest of New Zealand.[1][5][18] On that basis, traders should treat the market as leaning on whether a transient warm, dry air mass arrives over the lower North Island; the relevant comparator is not broad national weather, but the single highest reading at Wellington Intl Airport on the day.[9][15]

The catalyst to watch is the live sequence of forecast updates and airport-station observations into the settlement window, especially any change in the expected afternoon high at Wellington before midday UTC, when local daytime warming is still in play. Because the resolution source is Wunderground’s Wellington Intl Airport history page, the key dependency is whether a short-lived spike appears in the station record rather than whether the day ends up broadly mild across the city.[9]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Highest temperature in Wellington on August 3? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

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

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.

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 Election Predictions UK route into the same order book at 0% fees.

Are political prediction markets legal in my country?

It varies. They sit in legal gray areas in most jurisdictions. Polymarket is geo-blocked from US/UK/EU; some broker frontends have a different geo footprint. Trade only with capital you can afford to lose, and only if you understand the legal status in your jurisdiction.

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.