Trader consensus on Polymarket overwhelmingly backs a highest temperature of 24°C in Guangzhou on May 9, 2026, with 100% implied probability, anchored by official observations from the Guangzhou Baiyun International Airport station—the market's resolution source—peaking at exactly 24°C amid persistent cloud cover and intermittent showers. China Meteorological Administration data and global model ensembles (ECMWF, GFS) accurately forecasted this subdued high, reflecting suppressed solar insolation in the subtropical monsoon regime over the Pearl River Delta, well below May's climatological average of 29°C. High humidity amplified cooling from precipitation, with intraday readings confirming no exceedance by late evening. Realistic challenges include rare data revisions from preliminary reports, though final CMA validation is imminent and unlikely to shift the outcome.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Guangzhou on May 9?
Highest temperature in Guangzhou on May 9?
$60,307 Vol.
$60,307 Vol.
24°C
100%
25°C or higher
<1%
$60,307 Vol.
$60,307 Vol.
24°C
100%
25°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Guangzhou Baiyun International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/guangzhou/ZGGG.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°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 7, 2026, 12:37 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/guangzhou/ZGGGResolver
0x69c47De9D...Outcome proposed: Yes
Dispute window
Final
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Guangzhou Baiyun International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/guangzhou/ZGGG.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all data for this date has been finalized.
The resolution source for this market measures temperatures to whole degrees Celsius (eg, 9°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.
Resolution Source
https://www.wunderground.com/history/daily/cn/guangzhou/ZGGGResolver
0x69c47De9D...Outcome proposed: Yes
Dispute window
Final
Trader consensus on Polymarket overwhelmingly backs a highest temperature of 24°C in Guangzhou on May 9, 2026, with 100% implied probability, anchored by official observations from the Guangzhou Baiyun International Airport station—the market's resolution source—peaking at exactly 24°C amid persistent cloud cover and intermittent showers. China Meteorological Administration data and global model ensembles (ECMWF, GFS) accurately forecasted this subdued high, reflecting suppressed solar insolation in the subtropical monsoon regime over the Pearl River Delta, well below May's climatological average of 29°C. High humidity amplified cooling from precipitation, with intraday readings confirming no exceedance by late evening. Realistic challenges include rare data revisions from preliminary reports, though final CMA validation is imminent and unlikely to shift the outcome.
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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