Official observations from Brazil's Instituto Nacional de Meteorologia (INMET) automatic weather stations and São Paulo airports, including Guarulhos (GRU), confirm the highest temperature on April 29 reached 29°C, typically measured via calibrated thermometers during peak afternoon hours under partly cloudy skies with isolated showers. This aligns with pre-event INMET forecasts projecting maxima of 28–29°C as a departing cold front limited solar heating and atmospheric mixing, capping intensities below seasonal norms for late April. Trader consensus at near-100% implied probability reflects this verified data across multiple sites, embodying skin-in-the-game agreement on resolution criteria. Realistic challenges include post hoc data audits revealing sensor anomalies, though multi-station corroboration makes revisions improbable; final INMET bulletin expected soon.
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 29?
Highest temperature in Sao Paulo on April 29?
29°C 100.0%
25°C or below <1%
26°C <1%
27°C <1%
$106,284 Vol.
$106,284 Vol.
Apr 29, 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%
$106,284 Vol.
$106,284 Vol.
Apr 29, 2026
25°C or below
$11,219 Vol.
No
26°C
$9,455 Vol.
No
27°C
$21,039 Vol.
No
28°C
$23,590 Vol.
No
29°C
$9,832 Vol.
Yes
30°C
$8,130 Vol.
No
31°C
$5,401 Vol.
No
32°C
$4,162 Vol.
No
33°C
$3,631 Vol.
No
34°C
$2,180 Vol.
No
35°C or higher
$7,646 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 29 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 observations from Brazil's Instituto Nacional de Meteorologia (INMET) automatic weather stations and São Paulo airports, including Guarulhos (GRU), confirm the highest temperature on April 29 reached 29°C, typically measured via calibrated thermometers during peak afternoon hours under partly cloudy skies with isolated showers. This aligns with pre-event INMET forecasts projecting maxima of 28–29°C as a departing cold front limited solar heating and atmospheric mixing, capping intensities below seasonal norms for late April. Trader consensus at near-100% implied probability reflects this verified data across multiple sites, embodying skin-in-the-game agreement on resolution criteria. Realistic challenges include post hoc data audits revealing sensor anomalies, though multi-station corroboration makes revisions improbable; final INMET bulletin expected soon.
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 29 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 27, 2026, 12:29 AM ET
Volume
$106,284End Date
Apr 29, 2026Market Opened
Apr 27, 2026, 12:29 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 29 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 observations from Brazil's Instituto Nacional de Meteorologia (INMET) automatic weather stations and São Paulo airports, including Guarulhos (GRU), confirm the highest temperature on April 29 reached 29°C, typically measured via calibrated thermometers during peak afternoon hours under partly cloudy skies with isolated showers. This aligns with pre-event INMET forecasts projecting maxima of 28–29°C as a departing cold front limited solar heating and atmospheric mixing, capping intensities below seasonal norms for late April. Trader consensus at near-100% implied probability reflects this verified data across multiple sites, embodying skin-in-the-game agreement on resolution criteria. Realistic challenges include post hoc data audits revealing sensor anomalies, though multi-station corroboration makes revisions improbable; final INMET bulletin expected soon.
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 29 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
$106,284End Date
Apr 29, 2026Market Opened
Apr 27, 2026, 12:29 AM ETResolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from Brazil's Instituto Nacional de Meteorologia (INMET) automatic weather stations and São Paulo airports, including Guarulhos (GRU), confirm the highest temperature on April 29 reached 29°C, typically measured via calibrated thermometers during peak afternoon hours under partly cloudy skies with isolated showers. This aligns with pre-event INMET forecasts projecting maxima of 28–29°C as a departing cold front limited solar heating and atmospheric mixing, capping intensities below seasonal norms for late April. Trader consensus at near-100% implied probability reflects this verified data across multiple sites, embodying skin-in-the-game agreement on resolution criteria. Realistic challenges include post hoc data audits revealing sensor anomalies, though multi-station corroboration makes revisions improbable; final INMET bulletin expected soon.
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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