Trader consensus overwhelmingly favors 18°C as Shanghai's highest temperature on March 22, driven by the latest ensemble forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) and China Meteorological Administration models, which converge on a daytime maximum of 17-19°C amid mild southerly winds and partial cloud cover. Historical March data shows Shanghai averages 12-15°C highs, but current synoptic patterns—featuring a weakening high-pressure ridge—support this warmer outlook, with minimal convective activity limiting spikes. Realistic challenges include an unexpected warm front from the Yangtze basin pushing temps to 19°C+ or urban heat island amplification in official Pudong readings, though low-probability tail risks keep alternatives under 1%.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 22?
Highest temperature in Shanghai on March 22?
18°C 99.4%
19°C <1%
20°C <1%
21°C or higher <1%
$463,485 Vol.
$463,485 Vol.
18°C
99%
19°C
1%
20°C
<1%
21°C or higher
<1%
18°C 99.4%
19°C <1%
20°C <1%
21°C or higher <1%
$463,485 Vol.
$463,485 Vol.
18°C
99%
19°C
1%
20°C
<1%
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
No dispute
Final outcome: No
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Trader consensus overwhelmingly favors 18°C as Shanghai's highest temperature on March 22, driven by the latest ensemble forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) and China Meteorological Administration models, which converge on a daytime maximum of 17-19°C amid mild southerly winds and partial cloud cover. Historical March data shows Shanghai averages 12-15°C highs, but current synoptic patterns—featuring a weakening high-pressure ridge—support this warmer outlook, with minimal convective activity limiting spikes. Realistic challenges include an unexpected warm front from the Yangtze basin pushing temps to 19°C+ or urban heat island amplification in official Pudong readings, though low-probability tail risks keep alternatives under 1%.
Experimental AI-generated summary referencing Polymarket data · Updated
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