Official observations from the Hong Kong Observatory confirm a daily minimum of 26°C on September 4, 2026, aligning with the market's near-certain 99.9% consensus. Early September climatology features persistent subtropical ridge influence, warm regional sea surface temperatures near 28–29°C, and light southerly flow that limits nocturnal cooling, producing typical overnight lows of 24–26°C. This outcome matches historical baselines and recent model guidance showing no significant cold advection or clear-sky radiative cooling. Only an unexpected data revision from the primary station or a shift to a non-standard measurement site could alter resolution, though such changes remain improbable given established verification protocols.
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 4?
26°C 99.5%
20°C or below <1%
23°C <1%
24°C <1%
$28,607 Vol.
$28,607 Vol.
20°C or below
1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
100%
27°C
<1%
28°C
<1%
29°C
<1%
30°C or higher
<1%
26°C 99.5%
20°C or below <1%
23°C <1%
24°C <1%
$28,607 Vol.
$28,607 Vol.
20°C or below
1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
100%
27°C
<1%
28°C
<1%
29°C
<1%
30°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 2, 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 observations from the Hong Kong Observatory confirm a daily minimum of 26°C on September 4, 2026, aligning with the market's near-certain 99.9% consensus. Early September climatology features persistent subtropical ridge influence, warm regional sea surface temperatures near 28–29°C, and light southerly flow that limits nocturnal cooling, producing typical overnight lows of 24–26°C. This outcome matches historical baselines and recent model guidance showing no significant cold advection or clear-sky radiative cooling. Only an unexpected data revision from the primary station or a shift to a non-standard measurement site could alter resolution, though such changes remain improbable given established verification protocols.
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