Highest temperature in Wellington on July 16?

Platform comparison

Market context

Wellington’s highest temperature on 16 July 2026 will be recorded at the Wellington International Airport Station, with the market resolving to the Celsius range containing that peak. The current crowd-implied probability of 0% YES suggests traders expect no outcome to meet the YES threshold, likely because the event’s conditions are misaligned with midwinter realities in New Zealand, where July is the coldest month.

Historical data for Wellington in mid-July shows average daily highs between 10°C and 14°C, with extreme lows rarely dipping below 2°C and highs seldom exceeding 18°C [1]. Comparable cases from 2020–2025 confirm that temperatures above 20°C are exceptionally rare in this period, reinforcing the 0% probability as a rational reflection of climatic norms rather than market inefficiency.

Traders should monitor the daily Wunderground history page for the official reading, as settlement depends solely on this source [2]. No announcements or schedules will alter the outcome, but sudden shifts in cloud cover or wind patterns from the Tasman Sea could marginally influence the peak. Unlike Kalshi’s decimal odds or Betfair’s spread betting, Polymarket’s implied probability format here offers a direct view of consensus without fee-layer distortion, while Smarkets’ lower commission may appeal to high-volume participants seeking cleaner execution.

[1] National Institute of Water and Atmospheric Research, “Wellington Climate Averages”, accessed July 2026. [2] Wunderground, “Wellington Intl Airport Station Daily History”, https://www.wunderground.com/history/daily/nz/wellington/NZWN.

Methodology

This page compares Highest temperature in Wellington on July 16? specifically across Polymarket, Kalshi, Betfair Exchange and Smarkets. The live probability is the Polymarket mid; the comparison columns summarise each venue's fee structure, KYC, settlement currency and payment rails. Every CTA routes to Kalshi Alternative UK, which mirrors the Polymarket order book at 0% fees.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

What does Polymarket cost vs Kalshi?

Polymarket: 0% fees, only Polygon network costs (~$0.01/trade). Kalshi: up to 7% per trade plus spread. For high-frequency traders, Polymarket is dramatically cheaper.

Is Betfair a Polymarket alternative?

Only partially. Betfair Exchange is UK-focused with a sports-betting emphasis; they have politics markets but with thinner liquidity than Polymarket. Settlement in GBP/EUR, 2-5% commission on winnings.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Kalshi Alternative UK has a different geo footprint and routes to Polymarket's order book at 0% fees.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Kalshi Alternative UK offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.