**Latest Hong Kong Observatory guidance points to a maximum of 28–29°C on September 13 under the influence of a northeast monsoon.** Persistent easterly to northeasterly winds of 4–5, locally 6–7 at exposed sites, combined with mostly cloudy skies and scattered showers or thunderstorms, are expected to limit daytime heating compared with typical September conditions. Long-term normals show mean daily maxima near 30.9°C for mid-September, but the current pattern favors greater cloud cover and moisture, which reduce solar insolation and enhance evaporative cooling. Model consensus and post-processed ensemble outputs place the most likely peak in the narrow 28–29°C window, with small differences arising from the precise timing and coverage of showers, local sea-breeze interactions, and urban heat-island intensity at the reference station. Any reduction in cloud or shower activity could push readings toward 30°C, while heavier or earlier precipitation would favor 28°C or below. Fresh model runs and morning observations on the 13th will refine the outcome before market 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 13?
Highest temperature in Hong Kong on September 13?
29°C 31%
28°C 29%
30°C 19%
27°C 11%
NEW
NEW
Sep 13, 2026
25°C or below
<1%
26°C
2%
27°C
11%
28°C
29%
29°C
31%
30°C
19%
31°C
10%
32°C
2%
33°C
<1%
34°C
<1%
35°C or higher
<1%
29°C 31%
28°C 29%
30°C 19%
27°C 11%
NEW
NEW
Sep 13, 2026
25°C or below
$538 Vol.
<1%
26°C
$289 Vol.
2%
27°C
$1,151 Vol.
11%
28°C
$812 Vol.
29%
29°C
$536 Vol.
31%
30°C
$223 Vol.
19%
31°C
$483 Vol.
10%
32°C
$495 Vol.
2%
33°C
$88 Vol.
<1%
34°C
$120 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.**Latest Hong Kong Observatory guidance points to a maximum of 28–29°C on September 13 under the influence of a northeast monsoon.** Persistent easterly to northeasterly winds of 4–5, locally 6–7 at exposed sites, combined with mostly cloudy skies and scattered showers or thunderstorms, are expected to limit daytime heating compared with typical September conditions. Long-term normals show mean daily maxima near 30.9°C for mid-September, but the current pattern favors greater cloud cover and moisture, which reduce solar insolation and enhance evaporative cooling.
Model consensus and post-processed ensemble outputs place the most likely peak in the narrow 28–29°C window, with small differences arising from the precise timing and coverage of showers, local sea-breeze interactions, and urban heat-island intensity at the reference station. Any reduction in cloud or shower activity could push readings toward 30°C, while heavier or earlier precipitation would favor 28°C or below. Fresh model runs and morning observations on the 13th will refine the outcome before market resolution.
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
$4,888End 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.**Latest Hong Kong Observatory guidance points to a maximum of 28–29°C on September 13 under the influence of a northeast monsoon.** Persistent easterly to northeasterly winds of 4–5, locally 6–7 at exposed sites, combined with mostly cloudy skies and scattered showers or thunderstorms, are expected to limit daytime heating compared with typical September conditions. Long-term normals show mean daily maxima near 30.9°C for mid-September, but the current pattern favors greater cloud cover and moisture, which reduce solar insolation and enhance evaporative cooling.
Model consensus and post-processed ensemble outputs place the most likely peak in the narrow 28–29°C window, with small differences arising from the precise timing and coverage of showers, local sea-breeze interactions, and urban heat-island intensity at the reference station. Any reduction in cloud or shower activity could push readings toward 30°C, while heavier or earlier precipitation would favor 28°C or below. Fresh model runs and morning observations on the 13th will refine the outcome before market resolution.
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
$4,888End Date
Sep 13, 2026Market Opened
Sep 11, 2026, 12:56 AM ETResolver
0x69c47De9D...**Latest Hong Kong Observatory guidance points to a maximum of 28–29°C on September 13 under the influence of a northeast monsoon.** Persistent easterly to northeasterly winds of 4–5, locally 6–7 at exposed sites, combined with mostly cloudy skies and scattered showers or thunderstorms, are expected to limit daytime heating compared with typical September conditions. Long-term normals show mean daily maxima near 30.9°C for mid-September, but the current pattern favors greater cloud cover and moisture, which reduce solar insolation and enhance evaporative cooling. Model consensus and post-processed ensemble outputs place the most likely peak in the narrow 28–29°C window, with small differences arising from the precise timing and coverage of showers, local sea-breeze interactions, and urban heat-island intensity at the reference station. Any reduction in cloud or shower activity could push readings toward 30°C, while heavier or earlier precipitation would favor 28°C or below. Fresh model runs and morning observations on the 13th will refine the outcome before market resolution.
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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