Latest official forecasts from the China Meteorological Administration and global ensemble models indicate Guangzhou will reach a daytime peak of 27°C today under variable subtropical conditions typical of mid-May. Patchy cloud cover and light moisture influx from the Pearl River Delta have limited stronger heating, aligning with historical climatology where May highs average near 29°C but frequently settle one or two degrees lower when convection develops. Traders have converged on the 27°C outcome at near-certainty levels because station data from Baiyun International Airport is expected to confirm this exact threshold by evening resolution. A sudden clearing trend or stronger southerly flow could still push readings to 28°C or above, though current model consensus makes that shift unlikely before sunset.
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 17?
27°C 100.0%
28°C <1%
22°C or below <1%
23°C <1%
$29,624 Vol.
$29,624 Vol.
22°C or below
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
100%
28°C
<1%
29°C
<1%
30°C
<1%
31°C
<1%
32°C or higher
<1%
27°C 100.0%
28°C <1%
22°C or below <1%
23°C <1%
$29,624 Vol.
$29,624 Vol.
22°C or below
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
100%
28°C
<1%
29°C
<1%
30°C
<1%
31°C
<1%
32°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 15, 2026, 12:06 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/guangzhou/ZGGGThe 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/ZGGGLatest official forecasts from the China Meteorological Administration and global ensemble models indicate Guangzhou will reach a daytime peak of 27°C today under variable subtropical conditions typical of mid-May. Patchy cloud cover and light moisture influx from the Pearl River Delta have limited stronger heating, aligning with historical climatology where May highs average near 29°C but frequently settle one or two degrees lower when convection develops. Traders have converged on the 27°C outcome at near-certainty levels because station data from Baiyun International Airport is expected to confirm this exact threshold by evening resolution. A sudden clearing trend or stronger southerly flow could still push readings to 28°C or above, though current model consensus makes that shift unlikely before sunset.
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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