Highest temperature in Hong Kong on August 14?

Platform comparison

Market context

Hong Kong’s observatory reading for 14 August will be set by the **highest Celsius temperature** logged at the Hong Kong Observatory station, not by the city-wide extreme from outlying districts. That distinction matters for programmatic traders: if you are wiring in an auto-entry bot, the cleanest input is the HKO daily extract once the “Absolute Daily Max (deg. C)” row is finalised, rather than any live forecast feed or township station data. The current **0% YES** crowd price implies the market is being treated as unresolved rather than strongly bearish, which is consistent with a same-day weather contract that cannot settle until the official daily data is published. [2][16]

For historical framing, Hong Kong’s August climatology is typically hot enough that daily highs often sit in the high 20s to low 30s Celsius, with several August days in recent years producing delayed or disrupted weather patterns in HKO’s monthly records. The Observatory also recorded a city all-time maximum of **36.9°C** during a recent heat event, underlining that extreme outcomes are plausible even if the median case is much lower. For traders using conditional orders, that means the live market is best read as a range bet anchored to the official station, not a broad “Hong Kong weather” proxy. [8][3][14]

The key catalysts are the afternoon heating cycle, any thunderstorm or tropical disturbance over the Pearl River Delta, and the Observatory’s publication timing for the day’s extract. HKO’s own regional and forecast pages are the primary operational checks, while third-party forecast pages can help with intraday modelling but do not control settlement. Recent reporting has highlighted how quickly Hong Kong temperatures can spike under warm-air advection, so systematic traders often monitor whether warnings or storm signals appear during the morning and early afternoon, then wait for the official daily extract before finalising position sizing. [2][3][10][12]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Hong Kong on August 14? 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 Kalshi Fees, 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

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.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Kalshi Fees 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.