Official forecasts from Brazil’s INMET and global models such as ECMWF indicate a daily maximum of 22 °C for São Paulo on May 17, supported by current subtropical high-pressure dominance and light easterly flow that favors typical autumn diurnal warming. This aligns with the city’s mid-May climatological average high of 21–23 °C, derived from long-term station data at 2-meter height under World Meteorological Organization standards. Recent model runs show minimal cloud cover and no significant cold-front intrusion, reinforcing trader consensus around the 22 °C outcome. A sudden increase in afternoon convection or an unforecast wind shift could still cap the peak 1–2 °C lower, though such revisions remain unlikely given the stable synoptic pattern.
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 May 17?
Highest temperature in Sao Paulo on May 17?
$60,958 Vol.
$60,958 Vol.
May 17, 2026
22°C
100%
23°C or higher
<1%
$60,958 Vol.
$60,958 Vol.
May 17, 2026
22°C
$13,302 Vol.
100%
23°C or higher
$12,609 Vol.
<1%
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 17 May '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 forecasts from Brazil’s INMET and global models such as ECMWF indicate a daily maximum of 22 °C for São Paulo on May 17, supported by current subtropical high-pressure dominance and light easterly flow that favors typical autumn diurnal warming. This aligns with the city’s mid-May climatological average high of 21–23 °C, derived from long-term station data at 2-meter height under World Meteorological Organization standards. Recent model runs show minimal cloud cover and no significant cold-front intrusion, reinforcing trader consensus around the 22 °C outcome. A sudden increase in afternoon convection or an unforecast wind shift could still cap the peak 1–2 °C lower, though such revisions remain unlikely given the stable synoptic pattern.
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 17 May '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: May 15, 2026, 12:03 AM ET
Volume
$60,958End Date
May 17, 2026Market Opened
May 15, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRThis 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 17 May '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 forecasts from Brazil’s INMET and global models such as ECMWF indicate a daily maximum of 22 °C for São Paulo on May 17, supported by current subtropical high-pressure dominance and light easterly flow that favors typical autumn diurnal warming. This aligns with the city’s mid-May climatological average high of 21–23 °C, derived from long-term station data at 2-meter height under World Meteorological Organization standards. Recent model runs show minimal cloud cover and no significant cold-front intrusion, reinforcing trader consensus around the 22 °C outcome. A sudden increase in afternoon convection or an unforecast wind shift could still cap the peak 1–2 °C lower, though such revisions remain unlikely given the stable synoptic pattern.
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 17 May '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
$60,958End Date
May 17, 2026Market Opened
May 15, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGROfficial forecasts from Brazil’s INMET and global models such as ECMWF indicate a daily maximum of 22 °C for São Paulo on May 17, supported by current subtropical high-pressure dominance and light easterly flow that favors typical autumn diurnal warming. This aligns with the city’s mid-May climatological average high of 21–23 °C, derived from long-term station data at 2-meter height under World Meteorological Organization standards. Recent model runs show minimal cloud cover and no significant cold-front intrusion, reinforcing trader consensus around the 22 °C outcome. A sudden increase in afternoon convection or an unforecast wind shift could still cap the peak 1–2 °C lower, though such revisions remain unlikely given the stable synoptic pattern.
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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