Trader sentiment on Sao Paulo's March 22 peak temperature bunches tightly around 29-31°C, propelled by the latest ECMWF and GFS ensemble forecasts projecting highs of 29-32°C under a persistent high-pressure ridge limiting cloud cover and convection. The 30°C lead at 27% aligns with model consensus medians, while 29°C edges via potential afternoon sea breeze moderation—delaying onshore flow by hours could shave 1-2°C off peaks, tilting toward 31°C at 18%. INMET's recent dry outlook reinforces warmth, amplified by urban heat island effects at stations like Congonhas. Historical March maxima average 28°C with low exceedance above 33°C; watch 00z model updates for breeze timing refinements.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Sao Paulo on March 22?
Highest temperature in Sao Paulo on March 22?
29°C 34%
30°C 34%
31°C 34%
28°C 18%
24°C or below
9%
25°C
8%
26°C
8%
27°C
8%
28°C
18%
29°C
24%
30°C
27%
31°C
18%
32°C
18%
33°C
8%
34°C or higher
12%
29°C 34%
30°C 34%
31°C 34%
28°C 18%
24°C or below
9%
25°C
8%
26°C
8%
27°C
8%
28°C
18%
29°C
24%
30°C
27%
31°C
18%
32°C
18%
33°C
8%
34°C or higher
12%
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: Mar 18, 2026, 6:02 AM ET
Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Resolution Source
https://www.wunderground.com/history/daily/br/guarulhos/SBGRResolver
0x69c47De9D...Trader sentiment on Sao Paulo's March 22 peak temperature bunches tightly around 29-31°C, propelled by the latest ECMWF and GFS ensemble forecasts projecting highs of 29-32°C under a persistent high-pressure ridge limiting cloud cover and convection. The 30°C lead at 27% aligns with model consensus medians, while 29°C edges via potential afternoon sea breeze moderation—delaying onshore flow by hours could shave 1-2°C off peaks, tilting toward 31°C at 18%. INMET's recent dry outlook reinforces warmth, amplified by urban heat island effects at stations like Congonhas. Historical March maxima average 28°C with low exceedance above 33°C; watch 00z model updates for breeze timing refinements.
Experimental AI-generated summary referencing Polymarket data · Updated
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