Trader sentiment on Sao Paulo's highest temperature March 25 clusters tightly around 28-30°C (76% combined implied probability), driven by the latest INMET and international model ensembles like GFS and ECMWF, which project afternoon peaks in the upper 20s amid moderating sea breezes and partial cloud cover from lingering convective activity. Differentiating factors include model spread from boundary layer mixing—GFS leans hotter at 30°C with clearer skies, while ECMWF favors 28°C under increased humidity—against historical March averages of 27°C. Uncertainty persists from diurnal variability and potential overnight cooling, with final pre-event updates from Brazilian meteorology likely to sharpen odds before resolution based on official airport observations.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Sao Paulo on March 25?
Highest temperature in Sao Paulo on March 25?
28°C 27%
29°C 27%
30°C 24%
27°C 18%
24°C or below
2%
25°C
9%
26°C
16%
27°C
18%
28°C
27%
29°C
27%
30°C
24%
31°C
18%
32°C
14%
33°C
12%
34°C or higher
2%
28°C 27%
29°C 27%
30°C 24%
27°C 18%
24°C or below
2%
25°C
9%
26°C
16%
27°C
18%
28°C
27%
29°C
27%
30°C
24%
31°C
18%
32°C
14%
33°C
12%
34°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 Sao Paulo-Guarulhos International Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/br/guarulhos/SBGR.
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 21, 2026, 6:01 AM ET
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Trader sentiment on Sao Paulo's highest temperature March 25 clusters tightly around 28-30°C (76% combined implied probability), driven by the latest INMET and international model ensembles like GFS and ECMWF, which project afternoon peaks in the upper 20s amid moderating sea breezes and partial cloud cover from lingering convective activity. Differentiating factors include model spread from boundary layer mixing—GFS leans hotter at 30°C with clearer skies, while ECMWF favors 28°C under increased humidity—against historical March averages of 27°C. Uncertainty persists from diurnal variability and potential overnight cooling, with final pre-event updates from Brazilian meteorology likely to sharpen odds before resolution based on official airport observations.
Experimental AI-generated summary referencing Polymarket data · Updated
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