Persistent cloud cover, scattered showers, and a moist southerly flow associated with the East Asian monsoon are keeping overnight radiative cooling limited, supporting Hong Kong Observatory and ensemble model guidance for a minimum near 27–28 °C on 25 August. Recent runs show little change in the warm, humid boundary layer, with dew points holding in the mid-20s °C and only modest diurnal ranges expected under mostly overcast skies. Historical climatology for late August places typical lows around 25–26 °C, but current conditions favor the higher end of that range. Traders have therefore concentrated probability on 27 °C and 28 °C outcomes, with new forecast updates from the Hong Kong Observatory and global models the next potential catalyst for shifts.
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 August 25?
28°C 42%
27°C 31%
26°C 19%
29°C 11%
23°C or below
1%
24°C
1%
25°C
5%
26°C
19%
27°C
31%
28°C
42%
29°C
11%
30°C
<1%
31°C
<1%
32°C
<1%
33°C or higher
<1%
28°C 42%
27°C 31%
26°C 19%
29°C 11%
23°C or below
1%
24°C
1%
25°C
5%
26°C
19%
27°C
31%
28°C
42%
29°C
11%
30°C
<1%
31°C
<1%
32°C
<1%
33°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
This market can not resolve until data for this date has been published.
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: Aug 23, 2026, 12:30 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
This market can not resolve until data for this date has been published.
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...Persistent cloud cover, scattered showers, and a moist southerly flow associated with the East Asian monsoon are keeping overnight radiative cooling limited, supporting Hong Kong Observatory and ensemble model guidance for a minimum near 27–28 °C on 25 August. Recent runs show little change in the warm, humid boundary layer, with dew points holding in the mid-20s °C and only modest diurnal ranges expected under mostly overcast skies. Historical climatology for late August places typical lows around 25–26 °C, but current conditions favor the higher end of that range. Traders have therefore concentrated probability on 27 °C and 28 °C outcomes, with new forecast updates from the Hong Kong Observatory and global models the next potential catalyst for shifts.
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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