Trader sentiment favors 15°C (38.5%) and 16°C (34.5%) as Shanghai's highest temperature on March 23, propelled by the latest ECMWF and GFS ensemble forecasts converging on mild highs from southerly air flows carrying residual Pacific warmth. These projections incorporate partial cloud cover limiting solar insolation, with model spreads of just 1°C reflecting uncertainty in boundary layer mixing and Shanghai's urban heat island effect, which could nudge readings upward. The China Meteorological Administration's short-range guidance leans conservative at 15°C, aligning with historical late-March averages around 14°C but elevated by lingering El Niño patterns. Key differentiator: subtle wind shear variations, with traders eyeing 00Z updates for tighter odds before official observations resolve the market.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 23?
Highest temperature in Shanghai on March 23?
15°C 38%
16°C 35%
17°C 15%
14°C 10%
$28,086 Vol.
$28,086 Vol.
11°C or below
<1%
12°C
1%
13°C
2%
14°C
10%
15°C
38%
16°C
35%
17°C
15%
18°C
6%
19°C
1%
20°C
<1%
21°C or higher
<1%
15°C 38%
16°C 35%
17°C 15%
14°C 10%
$28,086 Vol.
$28,086 Vol.
11°C or below
<1%
12°C
1%
13°C
2%
14°C
10%
15°C
38%
16°C
35%
17°C
15%
18°C
6%
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 19, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Trader sentiment favors 15°C (38.5%) and 16°C (34.5%) as Shanghai's highest temperature on March 23, propelled by the latest ECMWF and GFS ensemble forecasts converging on mild highs from southerly air flows carrying residual Pacific warmth. These projections incorporate partial cloud cover limiting solar insolation, with model spreads of just 1°C reflecting uncertainty in boundary layer mixing and Shanghai's urban heat island effect, which could nudge readings upward. The China Meteorological Administration's short-range guidance leans conservative at 15°C, aligning with historical late-March averages around 14°C but elevated by lingering El Niño patterns. Key differentiator: subtle wind shear variations, with traders eyeing 00Z updates for tighter odds before official observations resolve the market.
Experimental AI-generated summary referencing Polymarket data · Updated
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