Official forecasts from the Hong Kong Observatory project a minimum temperature of 27°C for September 20 under a persistent high-pressure ridge bringing partly sunny, dry, and hot conditions with light easterly winds. Multiple weather models align closely on this overnight low, reflecting typical late-summer patterns where radiative cooling is moderated by humidity levels near 55-90%. Trader consensus, with 27°C holding the highest implied probability at 65.5%, tracks this consensus outlook, while the 24.5% chance assigned to 26°C accounts for minor cooling if localized showers develop. No major atmospheric shifts have altered the guidance in the past 48 hours.
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 September 20?
Lowest temperature in Hong Kong on September 20?
27°C 68%
26°C 25%
25°C 6%
28°C 6%
NEW
NEW
Sep 20, 2026
22°C or below
<1%
23°C
1%
24°C
<1%
25°C
6%
26°C
25%
27°C
68%
28°C
6%
29°C
<1%
30°C
<1%
31°C
<1%
32°C or higher
<1%
27°C 68%
26°C 25%
25°C 6%
28°C 6%
NEW
NEW
Sep 20, 2026
22°C or below
$38 Vol.
<1%
23°C
$25 Vol.
1%
24°C
$29 Vol.
<1%
25°C
$309 Vol.
6%
26°C
$289 Vol.
25%
27°C
$2,101 Vol.
68%
28°C
$467 Vol.
6%
29°C
$41 Vol.
<1%
30°C
$459 Vol.
<1%
31°C
$37 Vol.
<1%
32°C or higher
$37 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 20 Sep '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
In the event that there is no data for the observation date by 11:59 PM ET on the seventh day following the observation date, this market will resolve to the lowest bracket.
This market will resolve once data for this date has been published on the resolution source, or by 11:59 PM ET on the seventh day following the observation date, whichever comes first.
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.Official forecasts from the Hong Kong Observatory project a minimum temperature of 27°C for September 20 under a persistent high-pressure ridge bringing partly sunny, dry, and hot conditions with light easterly winds. Multiple weather models align closely on this overnight low, reflecting typical late-summer patterns where radiative cooling is moderated by humidity levels near 55-90%. Trader consensus, with 27°C holding the highest implied probability at 65.5%, tracks this consensus outlook, while the 24.5% chance assigned to 26°C accounts for minor cooling if localized showers develop. No major atmospheric shifts have altered the guidance in the past 48 hours.
This market will resolve to the temperature range that contains the lowest temperature recorded by the Hong Kong Observatory in degrees Celsius on 20 Sep '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
In the event that there is no data for the observation date by 11:59 PM ET on the seventh day following the observation date, this market will resolve to the lowest bracket.
This market will resolve once data for this date has been published on the resolution source, or by 11:59 PM ET on the seventh day following the observation date, whichever comes first.
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
In the event that there is no data for the observation date by 11:59 PM ET on the seventh day following the observation date, this market will resolve to the lowest bracket.
This market will resolve once data for this date has been published on the resolution source, or by 11:59 PM ET on the seventh day following the observation date, whichever comes first.
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: Sep 18, 2026, 12:29 AM ET
Volume
$3,831End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 12:29 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 20 Sep '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
In the event that there is no data for the observation date by 11:59 PM ET on the seventh day following the observation date, this market will resolve to the lowest bracket.
This market will resolve once data for this date has been published on the resolution source, or by 11:59 PM ET on the seventh day following the observation date, whichever comes first.
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.Official forecasts from the Hong Kong Observatory project a minimum temperature of 27°C for September 20 under a persistent high-pressure ridge bringing partly sunny, dry, and hot conditions with light easterly winds. Multiple weather models align closely on this overnight low, reflecting typical late-summer patterns where radiative cooling is moderated by humidity levels near 55-90%. Trader consensus, with 27°C holding the highest implied probability at 65.5%, tracks this consensus outlook, while the 24.5% chance assigned to 26°C accounts for minor cooling if localized showers develop. No major atmospheric shifts have altered the guidance in the past 48 hours.
This market will resolve to the temperature range that contains the lowest temperature recorded by the Hong Kong Observatory in degrees Celsius on 20 Sep '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
In the event that there is no data for the observation date by 11:59 PM ET on the seventh day following the observation date, this market will resolve to the lowest bracket.
This market will resolve once data for this date has been published on the resolution source, or by 11:59 PM ET on the seventh day following the observation date, whichever comes first.
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
In the event that there is no data for the observation date by 11:59 PM ET on the seventh day following the observation date, this market will resolve to the lowest bracket.
This market will resolve once data for this date has been published on the resolution source, or by 11:59 PM ET on the seventh day following the observation date, whichever comes first.
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
$3,831End Date
Sep 20, 2026Market Opened
Sep 18, 2026, 12:29 AM ETResolver
0x69c47De9D...Official forecasts from the Hong Kong Observatory project a minimum temperature of 27°C for September 20 under a persistent high-pressure ridge bringing partly sunny, dry, and hot conditions with light easterly winds. Multiple weather models align closely on this overnight low, reflecting typical late-summer patterns where radiative cooling is moderated by humidity levels near 55-90%. Trader consensus, with 27°C holding the highest implied probability at 65.5%, tracks this consensus outlook, while the 24.5% chance assigned to 26°C accounts for minor cooling if localized showers develop. No major atmospheric shifts have altered the guidance in the past 48 hours.
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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