Highest temperature in Wellington on July 9?

Platform comparison

Market context

Wellington faces a classic July 9 showdown between strong south-southwesterly winds and rain, with current observations showing temperatures hovering near 15°C under heavy cloud cover and gusts up to 48 mph[1][4]. The crowd-implied probability for the YES outcome sits at 0%, a stark contrarian signal that the market expects the high to fall well outside the target range, likely clustering around the seasonal average low of 47°F (47°F is roughly 8.3°C, but the average high is higher)[5]. Historical extremes for the region show a modest warming trend of +1.7°C over 90 years at nearby Kelburn, yet July remains the coldest month, making extreme heat events statistically rare and framing the current 0% pricing as a reflection of typical winter volatility rather than an anomaly[2].

Traders should monitor the National Weather Service timeseries for any sudden pressure shifts or wind direction changes, as the current rising pressure at 996mb suggests stable, cold conditions persisting through the morning[1][4]. The primary catalyst is the continuation of the forecasted strong winds and rain for Thursday 9th July, which will suppress temperatures and prevent any significant solar heating[1]. With the market pricing the 11°C outcome at nearly even odds elsewhere, the consensus here appears to undervalue the likelihood of a slightly warmer day if the rain clears, though the prevailing weather pattern strongly supports the current bearish stance on temperature[3]. The settlement window closes at 12:00 UTC, leaving little time for late-day temperature spikes to alter the resolution.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Who Will Win 2026, which mirrors the Polymarket order book directly.

Resolution & payout

Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.

Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.

FAQ

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

What does Polymarket cost to trade?

Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.