Traders heavily favor 18°C (78.5% implied probability) as Shanghai's highest temperature on March 22, reflecting consensus from updated ECMWF and GFS model runs showing peak afternoon highs around 17.5–18.5°C under clear skies and southerly winds advecting mild maritime air from the East China Sea. Recent observations confirm this trajectory: March 21 highs hit 17°C, surpassing seasonal norms amid an urban heat island effect adding 1–2°C and elevated regional sea surface temperatures fueling warmth. Lower odds for 19°C stem from slim chances of stronger insolation, while cooler outcomes like 17°C or below fade with diminishing cold frontal influences, per Shanghai Meteorological Bureau guidance; uncertainty lingers in boundary layer mixing.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 22?
Highest temperature in Shanghai on March 22?
18°C 96.5%
19°C 3.0%
20°C <1%
21°C or higher <1%
$439,959 Vol.
$439,959 Vol.
17°C
<1%
18°C
97%
19°C
3%
20°C
1%
21°C or higher
<1%
18°C 96.5%
19°C 3.0%
20°C <1%
21°C or higher <1%
$439,959 Vol.
$439,959 Vol.
17°C
<1%
18°C
97%
19°C
3%
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...Resolution Source
https://www.wunderground.com/history/daily/cn/shanghai/ZSPDResolver
0x69c47De9D...Traders heavily favor 18°C (78.5% implied probability) as Shanghai's highest temperature on March 22, reflecting consensus from updated ECMWF and GFS model runs showing peak afternoon highs around 17.5–18.5°C under clear skies and southerly winds advecting mild maritime air from the East China Sea. Recent observations confirm this trajectory: March 21 highs hit 17°C, surpassing seasonal norms amid an urban heat island effect adding 1–2°C and elevated regional sea surface temperatures fueling warmth. Lower odds for 19°C stem from slim chances of stronger insolation, while cooler outcomes like 17°C or below fade with diminishing cold frontal influences, per Shanghai Meteorological Bureau guidance; uncertainty lingers in boundary layer mixing.
Experimental AI-generated summary referencing Polymarket data · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions