Highest temperature in Wellington on July 23?

Platform comparison

Market context

Wellington’s hottest reading on 23 July will depend on the midwinter day’s maximum at Wellington International Airport, a site that often sits in a narrow band of cool, windy conditions rather than producing large temperature swings. With the market already at **0% YES**, traders are effectively saying the upper end of the forecast range is not yet priced in, so even a modestly warmer-than-expected afternoon would matter more than a typical summer-style spike.

There is no direct historical cluster available in the search results, so the cleanest comparator is the airport’s usual winter pattern: short daylight, maritime moderation, and frequent wind or cloud limiting the day’s peak. In that setting, the market is usually read through the lens of whether forecasters are converging on a tight maximum range or leaving room for a brief warm pulse; a small shift in the expected high can be enough to move the relevant temperature band.

The main catalyst to watch is the live forecast path for Wellington and any late revision to the official airport observation feed before settlement closes at 12:00 UTC. Traders will typically lean on updated local forecasts and terminal-area conditions, because the outcome is determined by the single highest airport temperature recorded on the day rather than a broader citywide reading.

Methodology

This page tracks Highest temperature in Wellington on July 23? 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

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.

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.

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.