Latest ensemble forecasts from ECMWF and GFS models pinpoint Shanghai's March 29 high temperature clustering tightly around 17-18°C, fueling the razor-thin trader odds between these outcomes at over 60% combined implied probability. This reflects a mild southerly airflow displacing recent cool fronts, with Shanghai's urban heat island effect amplifying peaks amid light winds and partial sunshine. Differentiating factors include model spread on peak afternoon heating—ECMWF leans slightly warmer at 18°C via stronger solar insolation, while GFS holds at 17°C due to higher cloud probabilities—and historical March 29 norms of 15-16°C from China Meteorological Administration data. Upcoming CMA hourly updates and station measurements at Xujiahui Observatory will sharpen resolution amid typical spring forecast uncertainty.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Shanghai on March 29?
Highest temperature in Shanghai on March 29?
17°C 33%
19°C 32%
18°C 29%
16°C 17%
13°C or below
1%
14°C
11%
15°C
14%
16°C
17%
17°C
33%
18°C
29%
19°C
19%
20°C
15%
21°C
14%
22°C
10%
23°C or higher
2%
17°C 33%
19°C 32%
18°C 29%
16°C 17%
13°C or below
1%
14°C
11%
15°C
14%
16°C
17%
17°C
33%
18°C
29%
19°C
19%
20°C
15%
21°C
14%
22°C
10%
23°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.
Market Opened: Mar 25, 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...Latest ensemble forecasts from ECMWF and GFS models pinpoint Shanghai's March 29 high temperature clustering tightly around 17-18°C, fueling the razor-thin trader odds between these outcomes at over 60% combined implied probability. This reflects a mild southerly airflow displacing recent cool fronts, with Shanghai's urban heat island effect amplifying peaks amid light winds and partial sunshine. Differentiating factors include model spread on peak afternoon heating—ECMWF leans slightly warmer at 18°C via stronger solar insolation, while GFS holds at 17°C due to higher cloud probabilities—and historical March 29 norms of 15-16°C from China Meteorological Administration data. Upcoming CMA hourly updates and station measurements at Xujiahui Observatory will sharpen resolution amid typical spring forecast uncertainty.
Experimental AI-generated summary referencing Polymarket data · Updated
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