Traders have overwhelmingly backed a maximum temperature of 22°C for São Paulo on May 17, driven by official observations from the Brazilian National Institute of Meteorology showing stable high-pressure dominance and light southerly flow that capped daytime warming. These conditions aligned closely with mid-May climatological norms for the region, where urban heat-island amplification typically adds only 1–2°C under similar synoptic setups. Current forecast verification leaves minimal scope for readings to reach the 23°C threshold, though minor uncertainties remain around exact station siting or localized microclimate effects that could prompt a final data revision.
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?
$61,988 Vol.
$61,988 Vol.
May 17, 2026
22°C
100%
23°C or higher
<1%
$61,988 Vol.
$61,988 Vol.
May 17, 2026
22°C
$13,302 Vol.
100%
23°C or higher
$13,639 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.Traders have overwhelmingly backed a maximum temperature of 22°C for São Paulo on May 17, driven by official observations from the Brazilian National Institute of Meteorology showing stable high-pressure dominance and light southerly flow that capped daytime warming. These conditions aligned closely with mid-May climatological norms for the region, where urban heat-island amplification typically adds only 1–2°C under similar synoptic setups. Current forecast verification leaves minimal scope for readings to reach the 23°C threshold, though minor uncertainties remain around exact station siting or localized microclimate effects that could prompt a final data revision.
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
$61,988End 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.Traders have overwhelmingly backed a maximum temperature of 22°C for São Paulo on May 17, driven by official observations from the Brazilian National Institute of Meteorology showing stable high-pressure dominance and light southerly flow that capped daytime warming. These conditions aligned closely with mid-May climatological norms for the region, where urban heat-island amplification typically adds only 1–2°C under similar synoptic setups. Current forecast verification leaves minimal scope for readings to reach the 23°C threshold, though minor uncertainties remain around exact station siting or localized microclimate effects that could prompt a final data revision.
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
$61,988End Date
May 17, 2026Market Opened
May 15, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRTraders have overwhelmingly backed a maximum temperature of 22°C for São Paulo on May 17, driven by official observations from the Brazilian National Institute of Meteorology showing stable high-pressure dominance and light southerly flow that capped daytime warming. These conditions aligned closely with mid-May climatological norms for the region, where urban heat-island amplification typically adds only 1–2°C under similar synoptic setups. Current forecast verification leaves minimal scope for readings to reach the 23°C threshold, though minor uncertainties remain around exact station siting or localized microclimate effects that could prompt a final data revision.
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