Trader consensus on Polymarket tilts toward a Shanghai high of 17°C (42%) or 18°C (34%) for March 22, driven by ensemble forecasts from ECMWF and GFS models projecting peak afternoon temperatures in the 16–19°C range amid a mild East Asian monsoon transition. Recent 00Z model runs show a slight warming bias from yesterday's cooler outputs, with 17.5°C as the median amid low-level southerly winds and partial cloud cover reducing solar insolation. Differentiating factors include urban heat island effects boosting station readings at Xujiahui by 1–2°C above rural areas, historical late-March averages of 16.5°C, and minimal cold front risk per CMA guidance, though convective showers could shave 1°C off peaks. Market-implied odds reflect this tight 1°C model spread and diurnal variability.
Resumo experimental gerado por IA com dados do Polymarket · AtualizadoHighest temperature in Shanghai on March 22?
Highest temperature in Shanghai on March 22?
17°C 41%
18°C 33%
19°C 13%
16°C 5.5%
$270,138 Vol.
$270,138 Vol.
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
1%
16°C
5%
17°C
41%
18°C
33%
19°C
13%
20°C
5%
21°C or higher
2%
17°C 41%
18°C 33%
19°C 13%
16°C 5.5%
$270,138 Vol.
$270,138 Vol.
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
1%
16°C
5%
17°C
41%
18°C
33%
19°C
13%
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 on Polymarket tilts toward a Shanghai high of 17°C (42%) or 18°C (34%) for March 22, driven by ensemble forecasts from ECMWF and GFS models projecting peak afternoon temperatures in the 16–19°C range amid a mild East Asian monsoon transition. Recent 00Z model runs show a slight warming bias from yesterday's cooler outputs, with 17.5°C as the median amid low-level southerly winds and partial cloud cover reducing solar insolation. Differentiating factors include urban heat island effects boosting station readings at Xujiahui by 1–2°C above rural areas, historical late-March averages of 16.5°C, and minimal cold front risk per CMA guidance, though convective showers could shave 1°C off peaks. Market-implied odds reflect this tight 1°C model spread and diurnal variability.
Resumo experimental gerado por IA com dados do Polymarket · Atualizado
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