INMET's latest forecast projects a maximum temperature of 30°C in São Paulo on April 17 under mostly cloudy skies with weak northerly to southeasterly winds and high humidity up to 95%, driving trader sentiment toward 29°C (31% implied probability) and 30°C (27%) as frontrunners. This reflects a warmer-than-average April pattern, with monthly means 1.5°C above the 21°C climatological norm, amid subtropical high-pressure influence boosting daytime heating despite cloud-induced reductions in solar insolation. Differentiating factors include potential sea-breeze timing and cloud breaks, which could limit peaks to 28°C (21%) or enable 31°C (12.5%); recent highs around 25-27°C on April 14-15 underscore model divergence in GFS and ECMWF ensembles. Traders await INMET's April 16 update for refined guidance ahead of resolution at São Paulo-Guarulhos Airport.
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 17?
Highest temperature in Sao Paulo on April 17?
30°C 31%
29°C 30%
27°C 12%
28°C 10%
24°C or below
2%
25°C
4%
26°C
9%
27°C
12%
28°C
10%
29°C
30%
30°C
31%
31°C
10%
32°C
7%
33°C
5%
34°C or higher
3%
30°C 31%
29°C 30%
27°C 12%
28°C 10%
24°C or below
2%
25°C
4%
26°C
9%
27°C
12%
28°C
10%
29°C
30%
30°C
31%
31°C
10%
32°C
7%
33°C
5%
34°C or higher
3%
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 15, 2026, 12:05 AM ET
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...INMET's latest forecast projects a maximum temperature of 30°C in São Paulo on April 17 under mostly cloudy skies with weak northerly to southeasterly winds and high humidity up to 95%, driving trader sentiment toward 29°C (31% implied probability) and 30°C (27%) as frontrunners. This reflects a warmer-than-average April pattern, with monthly means 1.5°C above the 21°C climatological norm, amid subtropical high-pressure influence boosting daytime heating despite cloud-induced reductions in solar insolation. Differentiating factors include potential sea-breeze timing and cloud breaks, which could limit peaks to 28°C (21%) or enable 31°C (12.5%); recent highs around 25-27°C on April 14-15 underscore model divergence in GFS and ECMWF ensembles. Traders await INMET's April 16 update for refined guidance ahead of resolution at São Paulo-Guarulhos Airport.
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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