Highest temperature in Hong Kong on July 1?

Platform comparison

Market context

The Hong Kong Observatory’s official daily maximum temperature on 1 July 2026 is the real-world event this market tracks, with resolution tied to the “Absolute Daily Max (deg. C)” once finalized in the Daily Extract. On Polymarket today, the contract prices the 33°C range at 55% implied probability, while the 34°C range sits at 13%, reflecting a trader consensus clustered between 31–33°C. This pricing contradicts the 0% YES crowd-implied probability you mentioned, suggesting either a data lag or a misreading of the frontrunner; the market clearly assigns significant weight to 33°C as the likely outcome.

Historical July climatology frames this probability: daytime highs in Hong Kong typically average 31°C under prevailing southwesterly flow, but the warmest period (late May to mid-September) sees daily highs averaging 33°C, with the 2026 seasonal forecast calling for above-normal temperatures amid long-term warming [1][3][4]. The 55% price on 33°C aligns with this pattern, as early July often hits 33°C when synoptic conditions amplify seasonal warmth, while nocturnal lows rarely drop below 25°C, supporting the 28°C minimum temperature market’s 55.5% probability [2].

Traders should monitor the Hong Kong Observatory’s Daily Extract release schedule, as resolution cannot occur until data is published, and watch for short-term synoptic shifts like southwesterly surges or cloud cover that could push temperatures above 33°C. The Observatory’s July–September 2026 forecast explicitly notes normal to above-normal temperatures and rainfall, a key dependency for traders assessing upside risk [3]. Recent tourist forecasts for 1 July 2026 show a range of 28–33°C with 65–95% humidity, confirming the 33°C threshold is plausible under current conditions [6]. USDC settlements on Polygon via conditional tokens will execute once the Daily Extract confirms the final value, making timing of the data release critical for position management.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page reviews Highest temperature in Hong Kong on July 1? 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 Polymarket Scam?, 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 Polymarket Scam?. 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 Polymarket Scam? 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.