Traders have converged on a 34°C high for Guangzhou on May 31 because multiple regional meteorological ensemble models produced tightly clustered daytime maximum forecasts around that value under persistent subtropical monsoon flow and moderate boundary-layer moisture. Official observations from the China Meteorological Administration align with these runs, confirming the peak under typical late-May conditions where historical averages range from 29–32°C. The market-implied odds reflect this strong model consensus and skin-in-the-game assessment of minimal upside or downside risk. Only an unexpected post-analysis revision to the official record or an unforecast mesoscale event could alter the 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 Guangzhou on May 31?
34°C 100.0%
28°C or below <1%
29°C <1%
30°C <1%
$90,223 Vol.
$90,223 Vol.
28°C or below
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
Yes
35°C
No
36°C
No
37°C
No
38°C or higher
No
34°C 100.0%
28°C or below <1%
29°C <1%
30°C <1%
$90,223 Vol.
$90,223 Vol.
28°C or below
No
29°C
No
30°C
No
31°C
No
32°C
No
33°C
No
34°C
Yes
35°C
No
36°C
No
37°C
No
38°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 for the Guangzhou Baiyun International Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: May 29, 2026, 12:26 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 for the Guangzhou Baiyun International Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.wunderground.com/history/daily/cn/guangzhou/ZGGGResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Traders have converged on a 34°C high for Guangzhou on May 31 because multiple regional meteorological ensemble models produced tightly clustered daytime maximum forecasts around that value under persistent subtropical monsoon flow and moderate boundary-layer moisture. Official observations from the China Meteorological Administration align with these runs, confirming the peak under typical late-May conditions where historical averages range from 29–32°C. The market-implied odds reflect this strong model consensus and skin-in-the-game assessment of minimal upside or downside risk. Only an unexpected post-analysis revision to the official record or an unforecast mesoscale event could alter the 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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