Official Hong Kong Observatory forecasts indicate a 27°C minimum for September 17 under fine, dry conditions driven by a fresh northeast monsoon and strengthening anticyclone aloft, which suppress cloud cover and moisture. This aligns with the market's leading 27°C outcome at 60.5% implied probability, as traders weigh the consensus model guidance against typical September baselines near 26–27°C. Minor probabilities for 26°C or lower reflect potential local cooling from wind patterns or minor forecast revisions, while the low odds for 28°C or higher stem from the expected clear nocturnal radiative cooling over land. Updated HKO briefings and any last-minute model runs will likely anchor final positioning ahead of resolution.
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 17?
27°C 62%
26°C 29%
25°C 8%
28°C 4%
21°C or below
2%
22°C
2%
23°C
3%
24°C
3%
25°C
8%
26°C
29%
27°C
62%
28°C
4%
29°C
2%
30°C
1%
31°C or higher
1%
27°C 62%
26°C 29%
25°C 8%
28°C 4%
21°C or below
2%
22°C
2%
23°C
3%
24°C
3%
25°C
8%
26°C
29%
27°C
62%
28°C
4%
29°C
2%
30°C
1%
31°C or higher
1%
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 15, 2026, 12:29 AM ET
Resolver
0x69c47De9D...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.
Resolver
0x69c47De9D...Official Hong Kong Observatory forecasts indicate a 27°C minimum for September 17 under fine, dry conditions driven by a fresh northeast monsoon and strengthening anticyclone aloft, which suppress cloud cover and moisture. This aligns with the market's leading 27°C outcome at 60.5% implied probability, as traders weigh the consensus model guidance against typical September baselines near 26–27°C. Minor probabilities for 26°C or lower reflect potential local cooling from wind patterns or minor forecast revisions, while the low odds for 28°C or higher stem from the expected clear nocturnal radiative cooling over land. Updated HKO briefings and any last-minute model runs will likely anchor final positioning ahead of 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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