Trader consensus has fully aligned on 27°C as the highest temperature recorded in Hong Kong on May 15, reflecting the Hong Kong Observatory’s official maximum reading for that date. Subtropical May climatology in the region routinely produces daytime peaks between 26°C and 29°C under typical southwesterly flow and high humidity, and the verified observation falls squarely within this historical range without triggering any anomalous heat advisories. With the observational period now closed, the market-implied probability of 100% for 27°C incorporates full certainty from ground-based measurements, while the 0.1% odds on all other outcomes account only for the remote possibility of a post-analysis data correction or station-specific adjustment. No new forecast updates or model revisions can alter the settled outcome at this stage.
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 15?
27°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$299,226 Vol.
$299,226 Vol.
19°C or below
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C or higher
No
27°C 100.0%
19°C or below <1%
20°C <1%
21°C <1%
$299,226 Vol.
$299,226 Vol.
19°C or below
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C
Yes
28°C
No
29°C or higher
No
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: May 13, 2026, 12:06 AM ET
Resolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus has fully aligned on 27°C as the highest temperature recorded in Hong Kong on May 15, reflecting the Hong Kong Observatory’s official maximum reading for that date. Subtropical May climatology in the region routinely produces daytime peaks between 26°C and 29°C under typical southwesterly flow and high humidity, and the verified observation falls squarely within this historical range without triggering any anomalous heat advisories. With the observational period now closed, the market-implied probability of 100% for 27°C incorporates full certainty from ground-based measurements, while the 0.1% odds on all other outcomes account only for the remote possibility of a post-analysis data correction or station-specific adjustment. No new forecast updates or model revisions can alter the settled outcome at this stage.
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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