Recent official forecasts from the Hong Kong Observatory indicate a maximum of 30°C for September 12, with partly cloudy skies, scattered showers, and stronger northeast monsoon winds potentially suppressing peak readings amid higher humidity and cloud cover. A developing low-pressure system over the South China Sea is expected to enhance convective activity and rainfall chances that weekend, introducing forecast uncertainty around intensification or steering patterns that could allow brief clearing and slightly higher temperatures near 31–32°C. Trader consensus clusters tightly around 30–32°C because short-range models show modest day-to-day variability in insolation and shower timing, with historical September maxima near 30.1°C providing climatological context for the narrow probability spread.
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 12?
31°C 33%
30°C 25%
32°C 20%
29°C 17%
25°C or below
<1%
26°C
2%
27°C
3%
28°C
6%
29°C
17%
30°C
25%
31°C
33%
32°C
20%
33°C
3%
34°C
1%
35°C or higher
<1%
31°C 33%
30°C 25%
32°C 20%
29°C 17%
25°C or below
<1%
26°C
2%
27°C
3%
28°C
6%
29°C
17%
30°C
25%
31°C
33%
32°C
20%
33°C
3%
34°C
1%
35°C or higher
<1%
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 10, 2026, 12:56 AM ET
Resolver
0x69c47De9D...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.
Resolver
0x69c47De9D...Recent official forecasts from the Hong Kong Observatory indicate a maximum of 30°C for September 12, with partly cloudy skies, scattered showers, and stronger northeast monsoon winds potentially suppressing peak readings amid higher humidity and cloud cover. A developing low-pressure system over the South China Sea is expected to enhance convective activity and rainfall chances that weekend, introducing forecast uncertainty around intensification or steering patterns that could allow brief clearing and slightly higher temperatures near 31–32°C. Trader consensus clusters tightly around 30–32°C because short-range models show modest day-to-day variability in insolation and shower timing, with historical September maxima near 30.1°C providing climatological context for the narrow probability spread.
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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