Hong Kong's subtropical climate typically brings September daily highs near 30–31°C, and official Hong Kong Observatory forecasts for September 5 project a maximum of 31°C under weak winds, partly cloudy skies, and isolated showers that cap intense solar heating. Recent model runs and station observations through early September 5 show readings climbing into the low 30s at urban sites but remaining consistent with the 31°C threshold rather than pushing higher, supporting the dominant market-implied probability for that outcome. Persistent humidity around 70% and light southeasterly flow further moderate extremes, while the absence of stronger high-pressure ridging or clear skies reduces the likelihood of 32°C or above. Updated local forecasts and real-time observatory data through the afternoon will determine final resolution.
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 September 5?
Highest temperature in Hong Kong on September 5?
31°C 75%
32°C 27%
33°C <1%
34°C or higher <1%
$57,690 Vol.
$57,690 Vol.
Sep 5, 2026
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
75%
32°C
27%
33°C
1%
34°C or higher
<1%
31°C 75%
32°C 27%
33°C <1%
34°C or higher <1%
$57,690 Vol.
$57,690 Vol.
Sep 5, 2026
24°C or below
$2,299 Vol.
<1%
25°C
$167 Vol.
<1%
26°C
$577 Vol.
<1%
27°C
$974 Vol.
<1%
28°C
$2,978 Vol.
<1%
29°C
$4,935 Vol.
<1%
30°C
$14,467 Vol.
<1%
31°C
$7,297 Vol.
75%
32°C
$9,786 Vol.
27%
33°C
$9,708 Vol.
1%
34°C or higher
$4,502 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 5 Sep '26.
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
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.Hong Kong's subtropical climate typically brings September daily highs near 30–31°C, and official Hong Kong Observatory forecasts for September 5 project a maximum of 31°C under weak winds, partly cloudy skies, and isolated showers that cap intense solar heating. Recent model runs and station observations through early September 5 show readings climbing into the low 30s at urban sites but remaining consistent with the 31°C threshold rather than pushing higher, supporting the dominant market-implied probability for that outcome. Persistent humidity around 70% and light southeasterly flow further moderate extremes, while the absence of stronger high-pressure ridging or clear skies reduces the likelihood of 32°C or above. Updated local forecasts and real-time observatory data through the afternoon will determine final resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 5 Sep '26.
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
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 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
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 3, 2026, 12:56 AM ET
Volume
$57,690End Date
Sep 5, 2026Market Opened
Sep 3, 2026, 12:56 AM ETResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 5 Sep '26.
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
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.Hong Kong's subtropical climate typically brings September daily highs near 30–31°C, and official Hong Kong Observatory forecasts for September 5 project a maximum of 31°C under weak winds, partly cloudy skies, and isolated showers that cap intense solar heating. Recent model runs and station observations through early September 5 show readings climbing into the low 30s at urban sites but remaining consistent with the 31°C threshold rather than pushing higher, supporting the dominant market-implied probability for that outcome. Persistent humidity around 70% and light southeasterly flow further moderate extremes, while the absence of stronger high-pressure ridging or clear skies reduces the likelihood of 32°C or above. Updated local forecasts and real-time observatory data through the afternoon will determine final resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 5 Sep '26.
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
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 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
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
$57,690End Date
Sep 5, 2026Market Opened
Sep 3, 2026, 12:56 AM ETResolver
0x69c47De9D...Hong Kong's subtropical climate typically brings September daily highs near 30–31°C, and official Hong Kong Observatory forecasts for September 5 project a maximum of 31°C under weak winds, partly cloudy skies, and isolated showers that cap intense solar heating. Recent model runs and station observations through early September 5 show readings climbing into the low 30s at urban sites but remaining consistent with the 31°C threshold rather than pushing higher, supporting the dominant market-implied probability for that outcome. Persistent humidity around 70% and light southeasterly flow further moderate extremes, while the absence of stronger high-pressure ridging or clear skies reduces the likelihood of 32°C or above. Updated local forecasts and real-time observatory data through the afternoon will determine final resolution.
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