Trader consensus on Polymarket heavily favors a high of 28°C or above in Hong Kong on March 25 at 40.5% implied probability, driven by the Hong Kong Observatory's latest forecast predicting 27-29°C amid a ridge of high pressure ushering warm southerly winds and minimal cloud cover. Recent data shows March 23's peak at 26.2°C and 24's at 27.1°C, exceeding seasonal norms of 23-24°C averages, fueled by elevated South China Sea surface temperatures boosting low-level advection. While historical March highs rarely top 28°C outside heatwaves, current ensemble models from ECMWF and GFS align on mild instability risks but low precipitation odds, positioning 27°C (28.5%) and 26°C (25%) as strong contenders amid typical late-winter variability.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Hong Kong on March 25?
Highest temperature in Hong Kong on March 25?
28°C or higher 41%
27°C 29%
20°C 25.0%
26°C 25%
18°C or below
9%
19°C
5%
20°C
16%
21°C
7%
22°C
8%
23°C
14%
24°C
14%
25°C
17%
26°C
25%
27°C
29%
28°C or higher
41%
28°C or higher 41%
27°C 29%
20°C 25.0%
26°C 25%
18°C or below
9%
19°C
5%
20°C
16%
21°C
7%
22°C
8%
23°C
14%
24°C
14%
25°C
17%
26°C
25%
27°C
29%
28°C or higher
41%
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 21, 2026, 6:03 AM ET
Resolver
0x69c47De9D...Resolver
0x69c47De9D...Trader consensus on Polymarket heavily favors a high of 28°C or above in Hong Kong on March 25 at 40.5% implied probability, driven by the Hong Kong Observatory's latest forecast predicting 27-29°C amid a ridge of high pressure ushering warm southerly winds and minimal cloud cover. Recent data shows March 23's peak at 26.2°C and 24's at 27.1°C, exceeding seasonal norms of 23-24°C averages, fueled by elevated South China Sea surface temperatures boosting low-level advection. While historical March highs rarely top 28°C outside heatwaves, current ensemble models from ECMWF and GFS align on mild instability risks but low precipitation odds, positioning 27°C (28.5%) and 26°C (25%) as strong contenders amid typical late-winter variability.
Experimental AI-generated summary referencing Polymarket data · Updated

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