Trader consensus overwhelmingly favors 18°C as Shanghai's highest temperature on March 22, driven by ensemble weather model forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) and U.S. Global Forecast System (GFS), alongside China Meteorological Administration (CMA) outlooks converging on a daytime maximum near 17.8–18.2°C under partly cloudy skies with light winds. Historical March data for Shanghai shows average highs of 13–15°C, but recent mild La Niña-influenced patterns support this slightly warmer projection without exceeding 19°C. Realistic challenges include an unforeseen southerly warm front advecting hotter air masses, though model agreement and low atmospheric instability make deviations above 19°C improbable, with uncertainty shrinking as high-resolution nowcasts update.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 22?
Highest temperature in Shanghai on March 22?
18°C 98.8%
19°C <1%
20°C <1%
21°C or higher <1%
$460,377 Vol.
$460,377 Vol.
18°C
99%
19°C
1%
20°C
<1%
21°C or higher
<1%
18°C 98.8%
19°C <1%
20°C <1%
21°C or higher <1%
$460,377 Vol.
$460,377 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 ensemble weather model forecasts from the European Centre for Medium-Range Weather Forecasts (ECMWF) and U.S. Global Forecast System (GFS), alongside China Meteorological Administration (CMA) outlooks converging on a daytime maximum near 17.8–18.2°C under partly cloudy skies with light winds. Historical March data for Shanghai shows average highs of 13–15°C, but recent mild La Niña-influenced patterns support this slightly warmer projection without exceeding 19°C. Realistic challenges include an unforeseen southerly warm front advecting hotter air masses, though model agreement and low atmospheric instability make deviations above 19°C improbable, with uncertainty shrinking as high-resolution nowcasts update.
Experimental AI-generated summary referencing Polymarket data · Updated
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