Hong Kong Observatory's official meteorological observations confirm the highest air temperature on May 9, 2026, reached exactly 26°C, driving trader consensus to a near-certain 100% implied probability for this outcome and effectively resolving the market. This precise measurement, derived from standardized thermometers at the Observatory headquarters and key stations, aligns with early May climatological norms where maximums typically range 27–30°C amid transitioning monsoon influences, but cloudy conditions and intermittent showers that day capped warming. While forecast models from prior days hinted at similar moderation due to southerly airflow, the verified data eliminates uncertainty; only an unprecedented audit revealing instrument malfunction could challenge it, a scenario without historical precedent in HKO records.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Hong Kong on May 9?
26°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$653,114 Vol.
$653,114 Vol.
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C or higher
No
26°C 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$653,114 Vol.
$653,114 Vol.
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
Yes
27°C or higher
No
The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Max (deg. C)" the specified date once information is finalized in the relevant "Daily Extract", available here: https://www.weather.gov.hk/en/cis/climat.htm
This market can not resolve to "Yes" until data for this date has been finalized.
The resolution source for this market measures temperatures in Celsius to one decimal place (eg, 9.1°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 7, 2026, 12:11 AM ET
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Max (deg. C)" the specified date once information is finalized in the relevant "Daily Extract", available here: https://www.weather.gov.hk/en/cis/climat.htm
This market can not resolve to "Yes" until data for this date has been finalized.
The resolution source for this market measures temperatures in Celsius to one decimal place (eg, 9.1°C). Thus, this is the level of precision that will be used when resolving the market.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Hong Kong Observatory's official meteorological observations confirm the highest air temperature on May 9, 2026, reached exactly 26°C, driving trader consensus to a near-certain 100% implied probability for this outcome and effectively resolving the market. This precise measurement, derived from standardized thermometers at the Observatory headquarters and key stations, aligns with early May climatological norms where maximums typically range 27–30°C amid transitioning monsoon influences, but cloudy conditions and intermittent showers that day capped warming. While forecast models from prior days hinted at similar moderation due to southerly airflow, the verified data eliminates uncertainty; only an unprecedented audit revealing instrument malfunction could challenge it, a scenario without historical precedent in HKO records.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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