Highest temperature in Hong Kong on October 2?
The conditions, incentives and evidence that could shape the answer.What this event actually asks
The useful question is precise: Will the highest temperature in Hong Kong be 31°C on October 2? In the API observation at 09:57 UTC on 2026-10-04, the selected contract’s first listed outcome was priced at 99.95%. The parent event had recorded $110,242 in cumulative volume. This is turnover across the event, not a count of independent forecasters or proof that this outcome is correctly priced. [1][2]
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 2 Oct '26. [2]
The API still marks this event open for orders even though its scheduled end date has passed. This is a pending-resolution question, not a new future window. Assess evidence from the original interval and the rules for later confirmation. [1][2]
The recorded daily maximum is the settlement variable
The Hong Kong Observatory provides daily extracts alongside monthly summaries and other climate series. Selecting the correct observation is essential: the rule here names the absolute daily maximum, not a forecast or a different station’s peak. [3]
This observation date has already passed. The remaining question is which finalized value the rule recognizes and whether it has been published within the allowed interval. A forecast model’s best estimate cannot override that recorded value.
Which evidence would change the assessment?
The designated daily extract showing a value inside the selected range would support that range’s outcome.
A nearby station, rounded news report or later revision excluded by the rule may point to a different number without changing settlement.
The next useful checkpoint
Written-rule date: October 2 (ET). The selected contract and any reporting grace period govern settlement. [2]
Our reading is conditional: compare the next primary record with the exact threshold above, then revisit the case if the evidence contradicts it. A high quoted chance does not establish certainty; a low quote does not make the event impossible. The value of the article is a clearer test of the claim, not an asserted trading advantage.
WEIGH BOTH SIDES
What would change the outlook?
Will the highest temperature in Hong Kong be 31°C on October 2?
Quoted market evidence: Oct 4, 2026, 09:57 UTC. The live market panel may show a newer observation.
The designated daily extract showing a value inside the selected range would support that range’s outcome.
A nearby station, rounded news report or later revision excluded by the rule may point to a different number without changing settlement.
The next signals to watch
- The exact observation date in the Observatory’s daily extract.
- The absolute daily maximum to the precision required by the contract.
- The initial publication and the rule’s seven-day no-data fallback.
The selected contract’s first outcome was 99.95% at 09:57 UTC on 2026-10-04. That price is the observation being analyzed, not an independent estimate of fair value. The separately timestamped live panel may differ. [2]
Form a view by checking the specified event against the evidence above. Publicly available context can explain a price without proving that it is wrong; this article does not establish a positive trading edge.
A FEW GOOD QUESTIONS
What else should you know?
What exactly does this Polymarket event measure?
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 2 Oct '26. [2]
What evidence matters most for this outcome?
The designated daily extract showing a value inside the selected range would support that range’s outcome. Read the linked rules for the exact evidence standard. [2]
CHECK THE EVIDENCE
Sources & further reading
- Polymarket: Highest temperature in Hong Kong on October 2? — event and aggregate volume ↗polymarket.com
- Polymarket: Will the highest temperature in Hong Kong be 31°C on October 2? — selected contract and full resolution rules ↗polymarket.com
- Hong Kong Observatory: Climatological database and daily extracts ↗weather.gov.hk
Published . AI-assisted, source-linked analysis. We distinguish evidence from interpretation; this article does not establish a trading edge. How we work →



