Hong Kong Observatory observations confirm a maximum air temperature of 26.4°C at its headquarters and 26.2°C at King's Park on April 4, 2026, driving trader consensus to a 99.3% implied probability for the 26°C outcome as evening readings drop to around 24°C under cloudy skies and showers from a lingering trough of low pressure. This aligns with the latest 9-day forecast range of 22–26°C amid high humidity (75–95%) and unsettled conditions over southern China, consistent with above-normal early April temperatures following a record-warm winter. Scenarios challenging this would require an improbable late-day surge above 26.5°C before midnight, unlikely given cooling trends and diminishing solar heating. Updated HKO readings expected overnight will finalize resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Hong Kong on April 4?
Highest temperature in Hong Kong on April 4?
26°C 99.4%
27°C <1%
25°C <1%
19°C or below <1%
$117,417 Vol.
$117,417 Vol.
19°C or below
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
99%
27°C
<1%
28°C
<1%
29°C or higher
<1%
26°C 99.4%
27°C <1%
25°C <1%
19°C or below <1%
$117,417 Vol.
$117,417 Vol.
19°C or below
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
99%
27°C
<1%
28°C
<1%
29°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
This market can not resolve to "Yes" until data for this date has been finalized.
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 finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Mar 29, 2026, 3:14 PM 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
This market can not resolve to "Yes" until data for this date has been finalized.
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 finalized for this market's timeframe will not be considered for this market's resolution.
Resolver
0x69c47De9D...Hong Kong Observatory observations confirm a maximum air temperature of 26.4°C at its headquarters and 26.2°C at King's Park on April 4, 2026, driving trader consensus to a 99.3% implied probability for the 26°C outcome as evening readings drop to around 24°C under cloudy skies and showers from a lingering trough of low pressure. This aligns with the latest 9-day forecast range of 22–26°C amid high humidity (75–95%) and unsettled conditions over southern China, consistent with above-normal early April temperatures following a record-warm winter. Scenarios challenging this would require an improbable late-day surge above 26.5°C before midnight, unlikely given cooling trends and diminishing solar heating. Updated HKO readings expected overnight will finalize resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions