Hong Kong Observatory's latest short-range forecast models project peak temperatures of 26–27°C on March 28, fueling trader consensus with 31% implied probability for 27°C and 30% for 26°C amid tight uncertainty. This reflects current weak high-pressure ridging over the South China Sea steering mild southerly winds and moist air masses northward, following a warm spell earlier this week where highs exceeded 27°C. However, an approaching upper trough introduces cloud cover risks that could limit solar heating and insolation, capping intensity—echoing springtime variability in Hong Kong's subtropical climate where daily fluctuations of 1–2°C are common. Model ensembles like ECMWF and GFS show slight divergence, with the evening HKO update expected to refine land-based observations against historical March norms around 24°C.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Hong Kong on March 28?
Highest temperature in Hong Kong on March 28?
27°C 31%
26°C 30%
25°C 20%
28°C or higher 17%
18°C or below
1%
19°C
1%
20°C
1%
21°C
1%
22°C
1%
23°C
4%
24°C
9%
25°C
18%
26°C
30%
27°C
31%
28°C or higher
21%
27°C 31%
26°C 30%
25°C 20%
28°C or higher 17%
18°C or below
1%
19°C
1%
20°C
1%
21°C
1%
22°C
1%
23°C
4%
24°C
9%
25°C
18%
26°C
30%
27°C
31%
28°C or higher
21%
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 24, 2026, 6:02 AM ET
Resolver
0x69c47De9D...Resolver
0x69c47De9D...Hong Kong Observatory's latest short-range forecast models project peak temperatures of 26–27°C on March 28, fueling trader consensus with 31% implied probability for 27°C and 30% for 26°C amid tight uncertainty. This reflects current weak high-pressure ridging over the South China Sea steering mild southerly winds and moist air masses northward, following a warm spell earlier this week where highs exceeded 27°C. However, an approaching upper trough introduces cloud cover risks that could limit solar heating and insolation, capping intensity—echoing springtime variability in Hong Kong's subtropical climate where daily fluctuations of 1–2°C are common. Model ensembles like ECMWF and GFS show slight divergence, with the evening HKO update expected to refine land-based observations against historical March norms around 24°C.
Experimental AI-generated summary referencing Polymarket data · Updated
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