TOTAL VOLUME:
$134.1b
24H VOL:
$113,466,932
24H TRANSACTIONS:
2,388,728,490
OPEN INTEREST:
$1,423,222,590
402,751
Markets across
30,217
events
MATCHED EVENTS:
2,632
PLATFORM COVERAGE:
5
Polymarket:
39%
VS.
Kalshi:
61%
Closed: May 31, 8:00 AM EST
Polymarket
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 31 May '26. The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Sao Paulo-Guarulhos International Airport Station, 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 until the first data point for the following date has been published on the resolution source. 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. Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
The market resolves on May 31, 2026, after the highest temperature in Sao Paulo on May 31 has been recorded. Resolution is determined by official temperature data from recognized meteorological sources monitoring Sao Paulo's weather on that date. The outcome is binary: either the temperature threshold specified in the market is met, or it is not. Once the data is confirmed and reported, the market settles and traders receive payouts based on their positions.
Temperature expectations for Sao Paulo on May 31 could shift based on seasonal climate forecasts, El Niño or La Niña patterns, atmospheric pressure systems, and historical May weather trends in the region. Major weather alerts, tropical storm activity, or unusual heat waves in South America may influence trader sentiment. As May approaches, updated meteorological models and real-time atmospheric data will refine market prices. Additionally, any significant climate or weather news affecting Brazil's interior regions could impact expectations for Sao Paulo's specific temperature outcome.