**Forecast consensus from the Hong Kong Observatory and multiple models points to a daily maximum of 28–30 °C on 13 September 2026 under persistent northeast monsoon flow.** Official guidance lists a 25–29 °C range with mainly cloudy skies, scattered showers, and isolated thunderstorms, especially early in the day, while ensemble outputs cluster near 29 °C. Cloud cover and precipitation timing are the dominant variables. Easterly winds of 15–25 km/h enhance mixing and limit surface heating, while showers reduce incoming solar radiation. If convective activity remains brief and clears by midday, temperatures can briefly reach 30–31 °C; prolonged or heavier rain keeps readings capped near 28 °C. Dew points near 24–25 °C and high humidity further moderate daytime peaks. Trader positioning—36.5 % on 29 °C and 29.5 % on 30 °C—reflects this narrow but uncertain window around the climatological September high of ~31 °C, adjusted downward by the active monsoon and shower threat. Later model runs or radar trends on the morning of the 13th will sharpen the exact maximum recorded at the official observatory station.
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 13?
Highest temperature in Hong Kong on September 13?
29°C 36%
30°C 28%
28°C 20%
31°C 12%
NEW
$10,083 Vol.
NEW
$10,083 Vol.
Sep 13, 2026
25°C or below
<1%
26°C
<1%
27°C
7%
28°C
20%
29°C
36%
30°C
28%
31°C
12%
32°C
3%
33°C
1%
34°C
<1%
35°C or higher
<1%
29°C 36%
30°C 28%
28°C 20%
31°C 12%
NEW
$10,083 Vol.
NEW
$10,083 Vol.
Sep 13, 2026
25°C or below
$538 Vol.
<1%
26°C
$610 Vol.
<1%
27°C
$1,807 Vol.
7%
28°C
$3,208 Vol.
20%
29°C
$1,123 Vol.
36%
30°C
$432 Vol.
28%
31°C
$971 Vol.
12%
32°C
$608 Vol.
3%
33°C
$455 Vol.
1%
34°C
$575 Vol.
<1%
35°C or higher
$153 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 13 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.**Forecast consensus from the Hong Kong Observatory and multiple models points to a daily maximum of 28–30 °C on 13 September 2026 under persistent northeast monsoon flow.** Official guidance lists a 25–29 °C range with mainly cloudy skies, scattered showers, and isolated thunderstorms, especially early in the day, while ensemble outputs cluster near 29 °C.
Cloud cover and precipitation timing are the dominant variables. Easterly winds of 15–25 km/h enhance mixing and limit surface heating, while showers reduce incoming solar radiation. If convective activity remains brief and clears by midday, temperatures can briefly reach 30–31 °C; prolonged or heavier rain keeps readings capped near 28 °C. Dew points near 24–25 °C and high humidity further moderate daytime peaks.
Trader positioning—36.5 % on 29 °C and 29.5 % on 30 °C—reflects this narrow but uncertain window around the climatological September high of ~31 °C, adjusted downward by the active monsoon and shower threat. Later model runs or radar trends on the morning of the 13th will sharpen the exact maximum recorded at the official observatory station.
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 13 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 11, 2026, 12:56 AM ET
Volume
$10,083End Date
Sep 13, 2026Market Opened
Sep 11, 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 13 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.**Forecast consensus from the Hong Kong Observatory and multiple models points to a daily maximum of 28–30 °C on 13 September 2026 under persistent northeast monsoon flow.** Official guidance lists a 25–29 °C range with mainly cloudy skies, scattered showers, and isolated thunderstorms, especially early in the day, while ensemble outputs cluster near 29 °C.
Cloud cover and precipitation timing are the dominant variables. Easterly winds of 15–25 km/h enhance mixing and limit surface heating, while showers reduce incoming solar radiation. If convective activity remains brief and clears by midday, temperatures can briefly reach 30–31 °C; prolonged or heavier rain keeps readings capped near 28 °C. Dew points near 24–25 °C and high humidity further moderate daytime peaks.
Trader positioning—36.5 % on 29 °C and 29.5 % on 30 °C—reflects this narrow but uncertain window around the climatological September high of ~31 °C, adjusted downward by the active monsoon and shower threat. Later model runs or radar trends on the morning of the 13th will sharpen the exact maximum recorded at the official observatory station.
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 13 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
$10,083End Date
Sep 13, 2026Market Opened
Sep 11, 2026, 12:56 AM ETResolver
0x69c47De9D...**Forecast consensus from the Hong Kong Observatory and multiple models points to a daily maximum of 28–30 °C on 13 September 2026 under persistent northeast monsoon flow.** Official guidance lists a 25–29 °C range with mainly cloudy skies, scattered showers, and isolated thunderstorms, especially early in the day, while ensemble outputs cluster near 29 °C. Cloud cover and precipitation timing are the dominant variables. Easterly winds of 15–25 km/h enhance mixing and limit surface heating, while showers reduce incoming solar radiation. If convective activity remains brief and clears by midday, temperatures can briefly reach 30–31 °C; prolonged or heavier rain keeps readings capped near 28 °C. Dew points near 24–25 °C and high humidity further moderate daytime peaks. Trader positioning—36.5 % on 29 °C and 29.5 % on 30 °C—reflects this narrow but uncertain window around the climatological September high of ~31 °C, adjusted downward by the active monsoon and shower threat. Later model runs or radar trends on the morning of the 13th will sharpen the exact maximum recorded at the official observatory station.
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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