**Persistent cloud cover, scattered showers, and moderate southwesterly flow from a broad low-pressure trough over the northern South China Sea kept overnight radiative cooling minimal on August 22, 2026.** Hong Kong Observatory forecasts and early observations pointed to a minimum of exactly 27°C, matching the tight historical late-August climatology where overnight lows typically cluster between 26–28°C amid high humidity and frequent monsoon influences. Traders priced the 27°C outcome at 99.9% because official guidance aligned with this expected range and no model runs or observational updates suggested deviation. Subtropical summer conditions in Hong Kong routinely suppress temperature drops below 26°C unless a rare clear, calm night or northerly surge occurs—neither of which developed here. Only an unanticipated shift to clearer skies or a stronger cold-air intrusion could have realistically produced a lower reading, but the prevailing pattern locked in the outcome.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Hong Kong on August 22?
Lowest temperature in Hong Kong on August 22?
27°C 99.9%
22°C or below <1%
23°C <1%
24°C <1%
$38,458 Vol.
$38,458 Vol.
Aug 22, 2026
22°C or below
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
100%
28°C
<1%
29°C
<1%
30°C
<1%
31°C
<1%
32°C or higher
<1%
27°C 99.9%
22°C or below <1%
23°C <1%
24°C <1%
$38,458 Vol.
$38,458 Vol.
Aug 22, 2026
22°C or below
$760 Vol.
<1%
23°C
$621 Vol.
<1%
24°C
$2,916 Vol.
<1%
25°C
$4,893 Vol.
<1%
26°C
$5,570 Vol.
<1%
27°C
$9,560 Vol.
100%
28°C
$7,736 Vol.
<1%
29°C
$4,510 Vol.
<1%
30°C
$876 Vol.
<1%
31°C
$501 Vol.
<1%
32°C or higher
$516 Vol.
<1%
This market will resolve to the temperature range that contains the lowest temperature recorded by the Hong Kong Observatory in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Min (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.**Persistent cloud cover, scattered showers, and moderate southwesterly flow from a broad low-pressure trough over the northern South China Sea kept overnight radiative cooling minimal on August 22, 2026.** Hong Kong Observatory forecasts and early observations pointed to a minimum of exactly 27°C, matching the tight historical late-August climatology where overnight lows typically cluster between 26–28°C amid high humidity and frequent monsoon influences.
Traders priced the 27°C outcome at 99.9% because official guidance aligned with this expected range and no model runs or observational updates suggested deviation. Subtropical summer conditions in Hong Kong routinely suppress temperature drops below 26°C unless a rare clear, calm night or northerly surge occurs—neither of which developed here.
Only an unanticipated shift to clearer skies or a stronger cold-air intrusion could have realistically produced a lower reading, but the prevailing pattern locked in the outcome.
This market will resolve to the temperature range that contains the lowest temperature recorded by the Hong Kong Observatory in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Min (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.
The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Min (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 20, 2026, 12:28 AM ET
Volume
$38,458End Date
Aug 22, 2026Market Opened
Aug 20, 2026, 12:28 AM ETResolver
0x69c47De9D...This market will resolve to the temperature range that contains the lowest temperature recorded by the Hong Kong Observatory in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Min (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.**Persistent cloud cover, scattered showers, and moderate southwesterly flow from a broad low-pressure trough over the northern South China Sea kept overnight radiative cooling minimal on August 22, 2026.** Hong Kong Observatory forecasts and early observations pointed to a minimum of exactly 27°C, matching the tight historical late-August climatology where overnight lows typically cluster between 26–28°C amid high humidity and frequent monsoon influences.
Traders priced the 27°C outcome at 99.9% because official guidance aligned with this expected range and no model runs or observational updates suggested deviation. Subtropical summer conditions in Hong Kong routinely suppress temperature drops below 26°C unless a rare clear, calm night or northerly surge occurs—neither of which developed here.
Only an unanticipated shift to clearer skies or a stronger cold-air intrusion could have realistically produced a lower reading, but the prevailing pattern locked in the outcome.
This market will resolve to the temperature range that contains the lowest temperature recorded by the Hong Kong Observatory in degrees Celsius on 22 Aug '26.
The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Min (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.
The resolution source for this market will be information from the Hong Kong Observatory, specifically the "Absolute Daily Min (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.
Volume
$38,458End Date
Aug 22, 2026Market Opened
Aug 20, 2026, 12:28 AM ETResolver
0x69c47De9D...**Persistent cloud cover, scattered showers, and moderate southwesterly flow from a broad low-pressure trough over the northern South China Sea kept overnight radiative cooling minimal on August 22, 2026.** Hong Kong Observatory forecasts and early observations pointed to a minimum of exactly 27°C, matching the tight historical late-August climatology where overnight lows typically cluster between 26–28°C amid high humidity and frequent monsoon influences. Traders priced the 27°C outcome at 99.9% because official guidance aligned with this expected range and no model runs or observational updates suggested deviation. Subtropical summer conditions in Hong Kong routinely suppress temperature drops below 26°C unless a rare clear, calm night or northerly surge occurs—neither of which developed here. Only an unanticipated shift to clearer skies or a stronger cold-air intrusion could have realistically produced a lower reading, but the prevailing pattern locked in the outcome.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions