Highest temperature in Hong Kong on August 12?

Platform comparison

Market context

The Hong Kong Observatory will record the highest temperature in Hong Kong on 12 August 2026, measured to one decimal place in Celsius. This market resolves based on the "Absolute Daily Max" figure published in the Observatory's Daily Extract once data is finalised.

August sits within Hong Kong's peak summer season, when daily maxima routinely exceed 32°C. Historical records show that mid-August temperatures in the territory typically range between 32–34°C, with occasional spikes to 35°C or above during heat waves. The 0% crowd probability suggests traders are either awaiting clearer atmospheric forecasting or treating this as a placeholder market pending seasonal pattern data. Hong Kong's August temperatures are influenced by monsoon patterns and the proximity of tropical systems; comparing recent years' August 12th readings would establish whether this date carries any particular climatic signature relative to the broader month.

The key dependency is the Hong Kong Observatory's publication schedule for the Daily Extract. Traders should monitor tropical cyclone activity in the Western Pacific during early August 2026, as storm systems can suppress temperatures through cloud cover and rainfall, whilst high-pressure systems typically drive maxima upward. The Observatory issues regular seasonal outlooks; its July 2026 forecast will be the most relevant guide for August conditions. Any significant weather anomalies or pattern shifts in late July could shift probability distributions materially, particularly if a typhoon approaches the region or if an unusual ridge of high pressure establishes itself over southern China.

Methodology

This page reviews Highest temperature in Hong Kong on August 12? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Who Will Win 2026, which mirrors the Polymarket order book at 0% fees.

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

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Who Will Win 2026. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Who Will Win 2026 trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.

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.