Trader consensus on Polymarket tightly favors 26°C (36%) and 27°C (33.5%) as São Paulo's highest temperature on April 14, driven by the latest INMET forecast of a 28°C maximum under partly cloudy skies, tempered by GFS and ECMWF ensembles averaging closer to 26.5°C. Key differentiators include sea breeze strength from the Atlantic, which could cap peaks at 26°C via coastal cooling, versus reduced cloud cover allowing 27°C or higher inland advection of warmer air under a subtropical high-pressure ridge. April climatology shows typical highs near 25°C, but recent stable subsidence aloft supports mild elevations; uncertainty persists with overnight 00Z model updates and final INMET surface observations at Congonhas or other stations resolving the market.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Sao Paulo on April 14?
Highest temperature in Sao Paulo on April 14?
26°C 36%
27°C 36%
28°C 18%
25°C 8%
$13,241 Vol.
$13,241 Vol.
21°C or below
<1%
22°C
<1%
23°C
1%
24°C
2%
25°C
8%
26°C
36%
27°C
36%
28°C
18%
29°C
4%
30°C
1%
31°C or higher
<1%
26°C 36%
27°C 36%
28°C 18%
25°C 8%
$13,241 Vol.
$13,241 Vol.
21°C or below
<1%
22°C
<1%
23°C
1%
24°C
2%
25°C
8%
26°C
36%
27°C
36%
28°C
18%
29°C
4%
30°C
1%
31°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: Apr 12, 2026, 12:05 AM ET
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Trader consensus on Polymarket tightly favors 26°C (36%) and 27°C (33.5%) as São Paulo's highest temperature on April 14, driven by the latest INMET forecast of a 28°C maximum under partly cloudy skies, tempered by GFS and ECMWF ensembles averaging closer to 26.5°C. Key differentiators include sea breeze strength from the Atlantic, which could cap peaks at 26°C via coastal cooling, versus reduced cloud cover allowing 27°C or higher inland advection of warmer air under a subtropical high-pressure ridge. April climatology shows typical highs near 25°C, but recent stable subsidence aloft supports mild elevations; uncertainty persists with overnight 00Z model updates and final INMET surface observations at Congonhas or other stations resolving the market.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions