Trader consensus on Polymarket overwhelmingly favors a highest temperature of 32°C in Sao Paulo on March 17, driven by converging forecasts from authoritative models like ECMWF and GFS, which project peak daytime highs precisely at that level amid persistent high-pressure systems and low humidity reducing cloud cover. Sao Paulo's March climatology typically sees highs of 27-29°C, but current upper-air patterns—warm advection from the north and minimal southerly winds—align with verified recent observations pushing anomalies higher, as tracked by INMET monitoring stations. This positioning holds robustly unless an unforeseen convective outbreak introduces cooling thunderstorms or a sudden cold front dips readings below 32°C, scenarios deemed low-probability by ensemble model spreads.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Sao Paulo on March 17?
Highest temperature in Sao Paulo on March 17?
32°C 100.0%
23°C or below <1%
24°C <1%
25°C <1%
$38,843 Vol.
$38,843 Vol.
23°C or below
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C
Yes
33°C or higher
No
32°C 100.0%
23°C or below <1%
24°C <1%
25°C <1%
$38,843 Vol.
$38,843 Vol.
23°C or below
No
24°C
No
25°C
No
26°C
No
27°C
No
28°C
No
29°C
No
30°C
No
31°C
No
32°C
Yes
33°C or higher
No
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 13, 2026, 3:25 PM ET
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Trader consensus on Polymarket overwhelmingly favors a highest temperature of 32°C in Sao Paulo on March 17, driven by converging forecasts from authoritative models like ECMWF and GFS, which project peak daytime highs precisely at that level amid persistent high-pressure systems and low humidity reducing cloud cover. Sao Paulo's March climatology typically sees highs of 27-29°C, but current upper-air patterns—warm advection from the north and minimal southerly winds—align with verified recent observations pushing anomalies higher, as tracked by INMET monitoring stations. This positioning holds robustly unless an unforeseen convective outbreak introduces cooling thunderstorms or a sudden cold front dips readings below 32°C, scenarios deemed low-probability by ensemble model spreads.
Experimental AI-generated summary referencing Polymarket data · Updated
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