Tight competition between 26°C (33.5%) and 27°C (29.5%) on Polymarket mirrors the 1°C spread in latest GFS and ECMWF ensemble forecasts for São Paulo's April 1 high, driven by uncertainty in peak diurnal heating under a persistent high-pressure ridge over southeast Brazil. Following mid-March cold fronts that brought floods and instability, INMET reports stable atmospheric conditions with moderate humidity and light southerly winds capping extremes, aligning with early-April climatology of average highs near 27°C (per historical NOAA data). Key differentiators include potential low-level cloud variability and urban heat island effects in the metro area; traders eye hourly INMET updates and fresh model runs by midday April 1 for resolution-defining precision on official station measurements.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten · AktualisiertHighest temperature in Sao Paulo on April 1?
Highest temperature in Sao Paulo on April 1?
26°C 34%
27°C 33%
25°C 14%
28°C 13%
20°C or below
3%
21°C
5%
22°C
8%
23°C
10%
24°C
10%
25°C
14%
26°C
34%
27°C
33%
28°C
13%
29°C
8%
30°C or higher
5%
26°C 34%
27°C 33%
25°C 14%
28°C 13%
20°C or below
3%
21°C
5%
22°C
8%
23°C
10%
24°C
10%
25°C
14%
26°C
34%
27°C
33%
28°C
13%
29°C
8%
30°C or higher
5%
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.
Markt eröffnet: Mar 29, 2026, 2:40 PM 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...Tight competition between 26°C (33.5%) and 27°C (29.5%) on Polymarket mirrors the 1°C spread in latest GFS and ECMWF ensemble forecasts for São Paulo's April 1 high, driven by uncertainty in peak diurnal heating under a persistent high-pressure ridge over southeast Brazil. Following mid-March cold fronts that brought floods and instability, INMET reports stable atmospheric conditions with moderate humidity and light southerly winds capping extremes, aligning with early-April climatology of average highs near 27°C (per historical NOAA data). Key differentiators include potential low-level cloud variability and urban heat island effects in the metro area; traders eye hourly INMET updates and fresh model runs by midday April 1 for resolution-defining precision on official station measurements.
Experimentelle KI-generierte Zusammenfassung mit Polymarket-Daten · Aktualisiert
Vorsicht bei externen Links.
Vorsicht bei externen Links.
Häufig gestellte Fragen