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Highest temperature in Sao Paulo on March 28?

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Highest temperature in Sao Paulo on March 28?

30°C 100.0%

24°C or below <1%

25°C <1%

26°C <1%

Polymarket

$110,942 Vol.

30°C 100.0%

24°C or below <1%

25°C <1%

26°C <1%

Polymarket

$110,942 Vol.

24°C or below

$8,610 Vol.

No

25°C

$3,133 Vol.

No

26°C

$4,879 Vol.

No

27°C

$9,106 Vol.

No

28°C

$8,252 Vol.

No

29°C

$18,646 Vol.

No

30°C

$18,599 Vol.

Yes

31°C

$9,619 Vol.

No

32°C

$8,126 Vol.

No

33°C

$6,087 Vol.

No

34°C or higher

$15,885 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 28 Mar '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 São Paulo–Guarulhos International Airport, the market's primary reference station and corroborated by Instituto Nacional de Meteorologia (INMET) bulletins, recorded a maximum temperature of exactly 30°C on March 28, driving trader consensus to a 100% implied probability for this outcome. This matched INMET's pre-event forecasts of sunny conditions and highs near 30°C under a persistent subtropical high-pressure ridge, which suppressed cloud cover and precipitation while slightly exceeding the late-March climatological average of 28°C. Such alignment reflects the reliability of short-range numerical weather models like those from the Center for Weather Forecasting and Climate Studies (CPTEC). Realistic challenges to this positioning would require rare post hoc data revisions due to sensor malfunctions or unresolved discrepancies across monitoring stations, with final INMET summaries expected to confirm the record.

Official observations from São Paulo–Guarulhos International Airport, the market's primary reference station and corroborated by Instituto Nacional de Meteorologia (INMET) bulletins, recorded a maximum temperature of exactly 30°C on March 28, driving trader consensus to a 100% implied probability for this outcome. This matched INMET's pre-event forecasts of sunny conditions and highs near 30°C under a persistent subtropical high-pressure ridge, which suppressed cloud cover and precipitation while slightly exceeding the late-March climatological average of 28°C. Such alignment reflects the reliability of short-range numerical weather models like those from the Center for Weather Forecasting and Climate Studies (CPTEC). Realistic challenges to this positioning would require rare post hoc data revisions due to sensor malfunctions or unresolved discrepancies across monitoring stations, with final INMET summaries expected to confirm the record.

Resumo experimental gerado por IA com dados do Polymarket · Atualizado
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 28 Mar '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 São Paulo–Guarulhos International Airport, the market's primary reference station and corroborated by Instituto Nacional de Meteorologia (INMET) bulletins, recorded a maximum temperature of exactly 30°C on March 28, driving trader consensus to a 100% implied probability for this outcome. This matched INMET's pre-event forecasts of sunny conditions and highs near 30°C under a persistent subtropical high-pressure ridge, which suppressed cloud cover and precipitation while slightly exceeding the late-March climatological average of 28°C. Such alignment reflects the reliability of short-range numerical weather models like those from the Center for Weather Forecasting and Climate Studies (CPTEC). Realistic challenges to this positioning would require rare post hoc data revisions due to sensor malfunctions or unresolved discrepancies across monitoring stations, with final INMET summaries expected to confirm the record.

Official observations from São Paulo–Guarulhos International Airport, the market's primary reference station and corroborated by Instituto Nacional de Meteorologia (INMET) bulletins, recorded a maximum temperature of exactly 30°C on March 28, driving trader consensus to a 100% implied probability for this outcome. This matched INMET's pre-event forecasts of sunny conditions and highs near 30°C under a persistent subtropical high-pressure ridge, which suppressed cloud cover and precipitation while slightly exceeding the late-March climatological average of 28°C. Such alignment reflects the reliability of short-range numerical weather models like those from the Center for Weather Forecasting and Climate Studies (CPTEC). Realistic challenges to this positioning would require rare post hoc data revisions due to sensor malfunctions or unresolved discrepancies across monitoring stations, with final INMET summaries expected to confirm the record.

Resumo experimental gerado por IA com dados do Polymarket · Atualizado

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Frequently Asked Questions

"Highest temperature in Sao Paulo on March 28?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "30°C" at 100%, followed by "24°C or below" at 0%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 100¢ implies that the market collectively assigns a 100% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

As of today, "Highest temperature in Sao Paulo on March 28?" has generated $110.9K in total trading volume since the market launched on Mar 24, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

To trade on "Highest temperature in Sao Paulo on March 28?," browse the 11 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "Highest temperature in Sao Paulo on March 28?" is "30°C" at 100%, meaning the market assigns a 100% chance to that outcome. The next closest outcome is "24°C or below" at 0%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "Highest temperature in Sao Paulo on March 28?" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.