Official METAR observations from São Paulo-Guarulhos International Airport (SBGR), the market's resolution source, confirm the highest temperature on April 27, 2026, peaked at 29°C during midday hours under partial clearing and residual subtropical high-pressure influence. This aligns with INMET's short-range forecasts anticipating maxima of 27–29°C before a cold front's arrival triggered clouds, showers, and sharper cooling later in the day, limiting further intensification. Trader consensus at 100% reflects this verified data amid typical autumn variability in southeastern Brazil, where frontal passages often cap highs near climatological norms of 24–26°C for late April. Realistic challenges would require rare post hoc data revisions from aviation or INMET validation, with next updates expected in daily bulletins.
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 27?
Highest temperature in Sao Paulo on April 27?
29°C 100.0%
25°C or below <1%
26°C <1%
27°C <1%
$95,255 Vol.
$95,255 Vol.
Apr 27, 2026
25°C or below
No
26°C
No
27°C
No
28°C
No
29°C
Yes
30°C
No
31°C
No
32°C
No
33°C
No
34°C
No
35°C or higher
No
29°C 100.0%
25°C or below <1%
26°C <1%
27°C <1%
$95,255 Vol.
$95,255 Vol.
Apr 27, 2026
25°C or below
$3,847 Vol.
No
26°C
$9,465 Vol.
No
27°C
$6,146 Vol.
No
28°C
$16,692 Vol.
No
29°C
$27,613 Vol.
Yes
30°C
$8,755 Vol.
No
31°C
$7,728 Vol.
No
32°C
$4,187 Vol.
No
33°C
$1,682 Vol.
No
34°C
$5,639 Vol.
No
35°C or higher
$3,501 Vol.
No
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 27 Apr '26.
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.Official METAR observations from São Paulo-Guarulhos International Airport (SBGR), the market's resolution source, confirm the highest temperature on April 27, 2026, peaked at 29°C during midday hours under partial clearing and residual subtropical high-pressure influence. This aligns with INMET's short-range forecasts anticipating maxima of 27–29°C before a cold front's arrival triggered clouds, showers, and sharper cooling later in the day, limiting further intensification. Trader consensus at 100% reflects this verified data amid typical autumn variability in southeastern Brazil, where frontal passages often cap highs near climatological norms of 24–26°C for late April. Realistic challenges would require rare post hoc data revisions from aviation or INMET validation, with next updates expected in daily bulletins.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 27 Apr '26.
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.
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 25, 2026, 12:53 AM ET
Volume
$95,255End Date
Apr 27, 2026Market Opened
Apr 25, 2026, 12:53 AM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 27 Apr '26.
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.Official METAR observations from São Paulo-Guarulhos International Airport (SBGR), the market's resolution source, confirm the highest temperature on April 27, 2026, peaked at 29°C during midday hours under partial clearing and residual subtropical high-pressure influence. This aligns with INMET's short-range forecasts anticipating maxima of 27–29°C before a cold front's arrival triggered clouds, showers, and sharper cooling later in the day, limiting further intensification. Trader consensus at 100% reflects this verified data amid typical autumn variability in southeastern Brazil, where frontal passages often cap highs near climatological norms of 24–26°C for late April. Realistic challenges would require rare post hoc data revisions from aviation or INMET validation, with next updates expected in daily bulletins.
This market will resolve to the temperature range that contains the highest temperature recorded at the Sao Paulo-Guarulhos International Airport Station in degrees Celsius on 27 Apr '26.
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.
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.
Volume
$95,255End Date
Apr 27, 2026Market Opened
Apr 25, 2026, 12:53 AM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official METAR observations from São Paulo-Guarulhos International Airport (SBGR), the market's resolution source, confirm the highest temperature on April 27, 2026, peaked at 29°C during midday hours under partial clearing and residual subtropical high-pressure influence. This aligns with INMET's short-range forecasts anticipating maxima of 27–29°C before a cold front's arrival triggered clouds, showers, and sharper cooling later in the day, limiting further intensification. Trader consensus at 100% reflects this verified data amid typical autumn variability in southeastern Brazil, where frontal passages often cap highs near climatological norms of 24–26°C for late April. Realistic challenges would require rare post hoc data revisions from aviation or INMET validation, with next updates expected in daily bulletins.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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