Recent weather model runs from agencies like the Brazilian National Institute of Meteorology point to mild autumn conditions over São Paulo on May 19, with daytime highs most likely settling near 17–18 °C under partly cloudy skies and light southerly flow. Typical mid-May climatology shows average highs of 20–22 °C, yet a recent cold front passage has suppressed temperatures and increased cloud cover, keeping maximum readings in the upper teens. Market-implied odds cluster tightly around 17 °C and 18 °C because forecast ensembles still differ by 1–2 °C depending on the exact timing of clearing and the strength of any residual moisture. Final resolution hinges on official station readings tomorrow, when the last model updates and real-time observations will narrow the range.
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 19?
Highest temperature in Sao Paulo on May 19?
18°C 34%
17°C 26%
19°C 22%
16°C 12%
NEW
NEW
May 19, 2026
11°C or below
<1%
12°C
<1%
13°C
<1%
14°C
1%
15°C
5%
16°C
12%
17°C
26%
18°C
34%
19°C
22%
20°C
4%
21°C or higher
2%
18°C 34%
17°C 26%
19°C 22%
16°C 12%
NEW
NEW
May 19, 2026
11°C or below
$612 Vol.
<1%
12°C
$238 Vol.
<1%
13°C
$347 Vol.
<1%
14°C
$471 Vol.
1%
15°C
$729 Vol.
5%
16°C
$334 Vol.
12%
17°C
$608 Vol.
26%
18°C
$300 Vol.
34%
19°C
$573 Vol.
22%
20°C
$441 Vol.
4%
21°C or higher
$1,041 Vol.
2%
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 19 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.Recent weather model runs from agencies like the Brazilian National Institute of Meteorology point to mild autumn conditions over São Paulo on May 19, with daytime highs most likely settling near 17–18 °C under partly cloudy skies and light southerly flow. Typical mid-May climatology shows average highs of 20–22 °C, yet a recent cold front passage has suppressed temperatures and increased cloud cover, keeping maximum readings in the upper teens. Market-implied odds cluster tightly around 17 °C and 18 °C because forecast ensembles still differ by 1–2 °C depending on the exact timing of clearing and the strength of any residual moisture. Final resolution hinges on official station readings tomorrow, when the last model updates and real-time observations will narrow the range.
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 19 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 17, 2026, 12:03 AM ET
Volume
$5,694End Date
May 19, 2026Market Opened
May 17, 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 19 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.Recent weather model runs from agencies like the Brazilian National Institute of Meteorology point to mild autumn conditions over São Paulo on May 19, with daytime highs most likely settling near 17–18 °C under partly cloudy skies and light southerly flow. Typical mid-May climatology shows average highs of 20–22 °C, yet a recent cold front passage has suppressed temperatures and increased cloud cover, keeping maximum readings in the upper teens. Market-implied odds cluster tightly around 17 °C and 18 °C because forecast ensembles still differ by 1–2 °C depending on the exact timing of clearing and the strength of any residual moisture. Final resolution hinges on official station readings tomorrow, when the last model updates and real-time observations will narrow the range.
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 19 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
$5,694End Date
May 19, 2026Market Opened
May 17, 2026, 12:03 AM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRRecent weather model runs from agencies like the Brazilian National Institute of Meteorology point to mild autumn conditions over São Paulo on May 19, with daytime highs most likely settling near 17–18 °C under partly cloudy skies and light southerly flow. Typical mid-May climatology shows average highs of 20–22 °C, yet a recent cold front passage has suppressed temperatures and increased cloud cover, keeping maximum readings in the upper teens. Market-implied odds cluster tightly around 17 °C and 18 °C because forecast ensembles still differ by 1–2 °C depending on the exact timing of clearing and the strength of any residual moisture. Final resolution hinges on official station readings tomorrow, when the last model updates and real-time observations will narrow the range.
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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