Official observations from the Hong Kong Observatory headquarters station recorded a daily maximum of 31°C on August 21, 2026, aligning with typical late-summer conditions under the influence of the prevailing subtropical ridge, light winds, and high humidity that limit diurnal temperature swings. This outcome dominates market-implied odds because the verified measurement from the authoritative reference station matches the 31°C bucket exactly, with climatological averages for the month hovering near that value and no anomalous heat or cooling events reported. Minor probabilities on adjacent outcomes reflect residual uncertainty only until final data confirmation, though revisions to official records remain rare given standardized instrumentation and quality controls at the site.
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 August 21?
31°C 99.9%
33°C <1%
24°C or below <1%
25°C <1%
$251,416 Vol.
$251,416 Vol.
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C
<1%
31°C
100%
32°C
<1%
33°C
<1%
34°C or higher
<1%
31°C 99.9%
33°C <1%
24°C or below <1%
25°C <1%
$251,416 Vol.
$251,416 Vol.
24°C or below
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C
<1%
31°C
100%
32°C
<1%
33°C
<1%
34°C or higher
<1%
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 until data for this date has been published.
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 initially published for this market's timeframe will not be considered for this market's resolution.
Market Opened: Aug 19, 2026, 12:56 AM ET
Resolver
0x69c47De9D...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 until data for this date has been published.
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 initially published for this market's timeframe will not be considered for this market's resolution.
Resolver
0x69c47De9D...Official observations from the Hong Kong Observatory headquarters station recorded a daily maximum of 31°C on August 21, 2026, aligning with typical late-summer conditions under the influence of the prevailing subtropical ridge, light winds, and high humidity that limit diurnal temperature swings. This outcome dominates market-implied odds because the verified measurement from the authoritative reference station matches the 31°C bucket exactly, with climatological averages for the month hovering near that value and no anomalous heat or cooling events reported. Minor probabilities on adjacent outcomes reflect residual uncertainty only until final data confirmation, though revisions to official records remain rare given standardized instrumentation and quality controls at the site.
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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