The Hong Kong Observatory's latest 9-day forecast update on April 30 projects a maximum temperature around 25°C for May 1 under mainly cloudy skies, moderate east-northeasterly winds force 4 (occasionally 5 offshore), and one or two rain patches, driven by a persistent cloud band over Guangdong's coast and the ongoing northeast monsoon delivering slightly cooler air. Trader consensus on Polymarket favors 26°C at 48% implied probability, with 25°C (29%) and 27°C (23%) close behind, reflecting expectations of minor sunny intervals or model variability amid 70-90% humidity that could cap peaks below May's climatological average of ~28°C. Inherent short-range forecast uncertainty persists; monitor HKO's hourly observations and overnight revisions for potential shifts as the trough evolves into a cold front over the weekend.
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 May 1?
Highest temperature in Hong Kong on May 1?
26°C 47%
25°C 30%
27°C 23%
24°C 2.6%
$81,075 Vol.
$81,075 Vol.
19°C or below
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
1%
24°C
3%
25°C
30%
26°C
47%
27°C
23%
28°C
2%
29°C or higher
1%
26°C 47%
25°C 30%
27°C 23%
24°C 2.6%
$81,075 Vol.
$81,075 Vol.
19°C or below
<1%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
1%
24°C
3%
25°C
30%
26°C
47%
27°C
23%
28°C
2%
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: Apr 29, 2026, 12:06 AM 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...The Hong Kong Observatory's latest 9-day forecast update on April 30 projects a maximum temperature around 25°C for May 1 under mainly cloudy skies, moderate east-northeasterly winds force 4 (occasionally 5 offshore), and one or two rain patches, driven by a persistent cloud band over Guangdong's coast and the ongoing northeast monsoon delivering slightly cooler air. Trader consensus on Polymarket favors 26°C at 48% implied probability, with 25°C (29%) and 27°C (23%) close behind, reflecting expectations of minor sunny intervals or model variability amid 70-90% humidity that could cap peaks below May's climatological average of ~28°C. Inherent short-range forecast uncertainty persists; monitor HKO's hourly observations and overnight revisions for potential shifts as the trough evolves into a cold front over the weekend.
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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