Trader sentiment clusters tightly around 17°C (39%) and 18°C (35.5%) for Shanghai's March 22 high, driven by ensemble forecasts from GFS and ECMWF models projecting mild spring conditions with peaks in that range amid a warming southerly airflow. Recent developments, including CMA's latest guidance showing light clouds and low wind shear, favor these outcomes over cooler 16°C or hotter 19°C+ scenarios, though urban heat island effects in Shanghai could nudge readings upward by 1-2°C. Historical data reveals average March highs near 16°C, but this year's El Niño fade has introduced 1-3°C positive anomalies, with model spread reflecting uncertainty in diurnal peak timing—differentiating the leaders via subtle differences in boundary layer mixing and radiative forcing. Key watch: afternoon observations from Xujiahui station.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 22?
Highest temperature in Shanghai on March 22?
17°C 41%
18°C 36%
19°C 16%
20°C 3.8%
$303,390 Vol.
$303,390 Vol.
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
1%
16°C
3%
17°C
41%
18°C
36%
19°C
16%
20°C
4%
21°C or higher
1%
17°C 41%
18°C 36%
19°C 16%
20°C 3.8%
$303,390 Vol.
$303,390 Vol.
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
1%
16°C
3%
17°C
41%
18°C
36%
19°C
16%
20°C
4%
21°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 Shanghai Pudong International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/cn/shanghai/ZSPD.
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: Mar 18, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Outcome proposed: No
Dispute window
Final
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Trader sentiment clusters tightly around 17°C (39%) and 18°C (35.5%) for Shanghai's March 22 high, driven by ensemble forecasts from GFS and ECMWF models projecting mild spring conditions with peaks in that range amid a warming southerly airflow. Recent developments, including CMA's latest guidance showing light clouds and low wind shear, favor these outcomes over cooler 16°C or hotter 19°C+ scenarios, though urban heat island effects in Shanghai could nudge readings upward by 1-2°C. Historical data reveals average March highs near 16°C, but this year's El Niño fade has introduced 1-3°C positive anomalies, with model spread reflecting uncertainty in diurnal peak timing—differentiating the leaders via subtle differences in boundary layer mixing and radiative forcing. Key watch: afternoon observations from Xujiahui station.
Experimental AI-generated summary referencing Polymarket data · Updated
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