Trader consensus on Polymarket overwhelmingly backs a highest temperature of 24°C in Guangzhou on May 9, reflecting official observational data from Guangzhou Baiyun International Airport, where readings peaked at 24°C amid persistent cloud cover and showers. Overcast skies and rain from a passing frontal system suppressed daytime heating, aligning with consensus from ECMWF and GFS model ensembles that forecasted subdued highs below 26°C—well under May's climatological average of 29–30°C. With the day concluding and no further solar heating possible, probabilities exceed 99%; only an improbable post-sunset data revision by the China Meteorological Administration could challenge this positioning. Final airport reports expected within 24 hours.
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?
24°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$60,580 Vol.
$60,580 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
Yes
25°C or higher
No
24°C 100.0%
15°C or below <1%
16°C <1%
17°C <1%
$60,580 Vol.
$60,580 Vol.
15°C or below
No
16°C
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
Yes
25°C or higher
No
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: No
No dispute
Final outcome: No
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: No
No dispute
Final outcome: No
Trader consensus on Polymarket overwhelmingly backs a highest temperature of 24°C in Guangzhou on May 9, reflecting official observational data from Guangzhou Baiyun International Airport, where readings peaked at 24°C amid persistent cloud cover and showers. Overcast skies and rain from a passing frontal system suppressed daytime heating, aligning with consensus from ECMWF and GFS model ensembles that forecasted subdued highs below 26°C—well under May's climatological average of 29–30°C. With the day concluding and no further solar heating possible, probabilities exceed 99%; only an improbable post-sunset data revision by the China Meteorological Administration could challenge this positioning. Final airport reports expected within 24 hours.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated

Beware of external links.
Beware of external links.
Frequently Asked Questions