Recent Hong Kong Observatory guidance and ensemble model runs project a daily maximum near 29–31°C for July 21, with scattered showers and variable cloud cover expected to moderate peak heating under typical July monsoon conditions. Subtle differences in timing and extent of rainfall across guidance keep the 29°C, 30°C, and 31°C outcomes tightly bunched in trader pricing, as additional moisture convergence can suppress temperatures by 1–2°C while clearer intervals allow brief spikes toward 32°C. Seasonal signals of normal-to-above-normal warmth provide limited upward bias, but the two-day horizon leaves resolution sensitive to the next official forecast updates and any rapid changes in steering flow.
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 July 21?
Highest temperature in Hong Kong on July 21?
30°C 92%
31°C 8%
32°C 1.0%
25°C or below <1%
$134,326 Vol.
$134,326 Vol.
Jul 21, 2026
25°C or below
<1%
26°C
<1%
27°C
<1%
28°C
<1%
29°C
<1%
30°C
92%
31°C
8%
32°C
1%
33°C
<1%
34°C
<1%
35°C or higher
<1%
30°C 92%
31°C 8%
32°C 1.0%
25°C or below <1%
$134,326 Vol.
$134,326 Vol.
Jul 21, 2026
25°C or below
$376 Vol.
<1%
26°C
$1,381 Vol.
<1%
27°C
$2,248 Vol.
<1%
28°C
$17,798 Vol.
<1%
29°C
$14,667 Vol.
<1%
30°C
$29,500 Vol.
92%
31°C
$15,817 Vol.
8%
32°C
$20,320 Vol.
1%
33°C
$18,244 Vol.
<1%
34°C
$12,497 Vol.
<1%
35°C or higher
$2,158 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 21 Jul '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
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.Recent Hong Kong Observatory guidance and ensemble model runs project a daily maximum near 29–31°C for July 21, with scattered showers and variable cloud cover expected to moderate peak heating under typical July monsoon conditions. Subtle differences in timing and extent of rainfall across guidance keep the 29°C, 30°C, and 31°C outcomes tightly bunched in trader pricing, as additional moisture convergence can suppress temperatures by 1–2°C while clearer intervals allow brief spikes toward 32°C. Seasonal signals of normal-to-above-normal warmth provide limited upward bias, but the two-day horizon leaves resolution sensitive to the next official forecast updates and any rapid changes in steering flow.
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 21 Jul '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
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.
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
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: Jul 19, 2026, 12:04 AM ET
Volume
$134,326End Date
Jul 21, 2026Market Opened
Jul 19, 2026, 12:04 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 21 Jul '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
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.Recent Hong Kong Observatory guidance and ensemble model runs project a daily maximum near 29–31°C for July 21, with scattered showers and variable cloud cover expected to moderate peak heating under typical July monsoon conditions. Subtle differences in timing and extent of rainfall across guidance keep the 29°C, 30°C, and 31°C outcomes tightly bunched in trader pricing, as additional moisture convergence can suppress temperatures by 1–2°C while clearer intervals allow brief spikes toward 32°C. Seasonal signals of normal-to-above-normal warmth provide limited upward bias, but the two-day horizon leaves resolution sensitive to the next official forecast updates and any rapid changes in steering flow.
This market will resolve to the temperature range that contains the highest temperature recorded by the Hong Kong Observatory in degrees Celsius on 21 Jul '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
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.
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
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.
Volume
$134,326End Date
Jul 21, 2026Market Opened
Jul 19, 2026, 12:04 AM ETResolver
0x69c47De9D...Recent Hong Kong Observatory guidance and ensemble model runs project a daily maximum near 29–31°C for July 21, with scattered showers and variable cloud cover expected to moderate peak heating under typical July monsoon conditions. Subtle differences in timing and extent of rainfall across guidance keep the 29°C, 30°C, and 31°C outcomes tightly bunched in trader pricing, as additional moisture convergence can suppress temperatures by 1–2°C while clearer intervals allow brief spikes toward 32°C. Seasonal signals of normal-to-above-normal warmth provide limited upward bias, but the two-day horizon leaves resolution sensitive to the next official forecast updates and any rapid changes in steering flow.
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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