Trader consensus on Sao Paulo's March 24 high temperature clusters tightly around 29–31°C, driven by ensemble weather model forecasts from ECMWF and GFS averaging 29.5–30.5°C amid lingering El Niño warmth boosting regional temperatures 1–2°C above March norms of 27–28°C. Differentiating factors include model spread from high-pressure ridge persistence versus potential sea-breeze incursions and cumulus cloud development in the afternoon, which could shave 1–2°C off peaks; urban heat island effects in the city center add localized boosts. Recent INMET updates and satellite-derived cloud trends hold 29°C as slight favorite, but low-probability convective outbreaks risk cooler outcomes below 28°C. Traders eye 18Z model runs for resolution shifts.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Sao Paulo on March 24?
Highest temperature in Sao Paulo on March 24?
29°C 30%
30°C 27%
31°C 19%
28°C 15%
25°C or below
1%
26°C
2%
27°C
8%
28°C
15%
29°C
30%
30°C
27%
31°C
19%
32°C
5%
33°C
3%
34°C
1%
35°C or higher
1%
29°C 30%
30°C 27%
31°C 19%
28°C 15%
25°C or below
1%
26°C
2%
27°C
8%
28°C
15%
29°C
30%
30°C
27%
31°C
19%
32°C
5%
33°C
3%
34°C
1%
35°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 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 20, 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 consensus on Sao Paulo's March 24 high temperature clusters tightly around 29–31°C, driven by ensemble weather model forecasts from ECMWF and GFS averaging 29.5–30.5°C amid lingering El Niño warmth boosting regional temperatures 1–2°C above March norms of 27–28°C. Differentiating factors include model spread from high-pressure ridge persistence versus potential sea-breeze incursions and cumulus cloud development in the afternoon, which could shave 1–2°C off peaks; urban heat island effects in the city center add localized boosts. Recent INMET updates and satellite-derived cloud trends hold 29°C as slight favorite, but low-probability convective outbreaks risk cooler outcomes below 28°C. Traders eye 18Z model runs for resolution shifts.
Experimental AI-generated summary referencing Polymarket data · Updated
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