Trader consensus heavily favors a Shanghai high of 18°C (44%) or 19°C (27%), driven by the latest ensemble forecasts from ECMWF and GFS models, which project peak afternoon temperatures around 18-19°C under a mild high-pressure ridge ushering southerly winds and above-normal warmth for late March. Historical data from the Shanghai Meteorological Bureau shows March 22 averages near 14°C, but current anomalies—fueled by persistent La Niña decay and urban heat effects—support this upward shift, with recent observations logging 16-17°C highs earlier this week. Key uncertainty stems from potential cloud cover from an approaching front, per CMA updates, tempering odds for 20°C+ (6.2%) while boosting 17°C (17.5%) as a conservative floor. Monitor hourly satellite imagery for resolution-defining convective activity.
Resumo experimental gerado por IA com dados do Polymarket · AtualizadoHighest temperature in Shanghai on March 22?
Highest temperature in Shanghai on March 22?
18°C 42%
19°C 28%
17°C 20%
20°C 4.5%
$228,296 Vol.
$228,296 Vol.
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
1%
16°C
4%
17°C
20%
18°C
42%
19°C
28%
20°C
5%
21°C or higher
2%
18°C 42%
19°C 28%
17°C 20%
20°C 4.5%
$228,296 Vol.
$228,296 Vol.
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
1%
16°C
4%
17°C
20%
18°C
42%
19°C
28%
20°C
5%
21°C or higher
2%
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.
Mercado Aberto: Mar 18, 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 consensus heavily favors a Shanghai high of 18°C (44%) or 19°C (27%), driven by the latest ensemble forecasts from ECMWF and GFS models, which project peak afternoon temperatures around 18-19°C under a mild high-pressure ridge ushering southerly winds and above-normal warmth for late March. Historical data from the Shanghai Meteorological Bureau shows March 22 averages near 14°C, but current anomalies—fueled by persistent La Niña decay and urban heat effects—support this upward shift, with recent observations logging 16-17°C highs earlier this week. Key uncertainty stems from potential cloud cover from an approaching front, per CMA updates, tempering odds for 20°C+ (6.2%) while boosting 17°C (17.5%) as a conservative floor. Monitor hourly satellite imagery for resolution-defining convective activity.
Resumo experimental gerado por IA com dados do Polymarket · Atualizado
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