TOTAL VOLUME:

$134.2b

24H VOL:

$130,522,377

24H TRANSACTIONS:

2,388,728,490

OPEN INTEREST:

$1,438,389,636

404,028

Markets across

30,214

events

MATCHED EVENTS:

2,681

PLATFORM COVERAGE:

5

Polymarket:

39%

VS.

Kalshi:

61%

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Highest temperature in Sao Paulo on July 4?
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Highest temperature in Sao Paulo on July 4?

Volume:
$72,046

20°C

 - Polymarket

20°C - Polymarket

1W

News

Positive

Negative

Neutral

Hover marker for details

Vol.

·

Resolved Jul 5, 2026

Closed: Jul 4, 8:00 AM EST

polymarket

Polymarket

View
Outcome
Trade
Chance %
Price
Spread
Liquidity
Volume
24h
7d
Open Interest
Ends in
Result
polymarket

20°C

View
100%
Yes 100¢No 0¢
0.1¢
N/A
$5,393
N/A
N/A
N/A
Settled
Yes
polymarket

21°C

0%
Yes 0¢No 100¢
—
N/A
$15,408
N/A
N/A
N/A
Settled
No
polymarket

23°C or higher

0%
Yes 0¢No 100¢
—
N/A
$11,633
N/A
N/A
N/A
Settled
No
polymarket

18°C

0%
Yes 0¢No 100¢
—
N/A
$8,660
N/A
N/A
N/A
Settled
No
polymarket

17°C

0%
Yes 0¢No 100¢
—
N/A
$8,525
N/A
N/A
N/A
Settled
No
polymarket

19°C

0%
Yes 0¢No 100¢
—
N/A
$8,460
N/A
N/A
N/A
Settled
No
polymarket

16°C

0%
Yes 0¢No 100¢
—
N/A
$4,214
N/A
N/A
N/A
Settled
No
polymarket

22°C

0%
Yes 0¢No 100¢
—
N/A
$3,908
N/A
N/A
N/A
Settled
No
polymarket

13°C or below

0%
Yes 0¢No 100¢
—
N/A
$2,657
N/A
N/A
N/A
Settled
No
polymarket

15°C

0%
Yes 0¢No 100¢
—
N/A
$1,651
N/A
N/A
N/A
Settled
No
polymarket

14°C

0%
Yes 0¢No 100¢
—
N/A
$1,537
N/A
N/A
N/A
Settled
No
Total markets: 11

Description

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 4 Jul '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.

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 4 Jul '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.

Frequently asked questions

The São Paulo July 4 temperature market dashboard on Polymarket tracks real-time odds and trading activity for the highest temperature forecast in São Paulo on that date. The interface displays current market prices, 24-hour trading volume of $40,568, and historical price movements as traders update their positions. This market aggregates collective predictions from participants who buy and sell shares based on their temperature expectations, providing a live snapshot of where the crowd believes the peak temperature will land. The dashboard helps traders monitor sentiment shifts and identify trading opportunities as new information emerges.

Prediction market odds reflect decentralized trader consensus rather than a single analyst view, often incorporating diverse data sources and real-time adjustments. While traditional weather forecasters rely on meteorological models and historical patterns, this market prices in trader beliefs about temperature outcomes, which can diverge from official forecasts. Comparing the two reveals whether the crowd is more bullish or bearish than institutional predictions. Prediction markets tend to update faster when new information surfaces, whereas analyst forecasts may lag by hours or days. Both sources offer value: analysts provide scientific rigor, while markets capture dynamic risk sentiment.

This market resolves around Jul 4, 2026, once the highest temperature recorded in São Paulo on July 4 is verifiable from credible public sources. The outcome is determined by comparing trader predictions against the actual peak temperature reported for that day. Resolution typically occurs within hours of the market end time, once official data is confirmed and the platform processes the settlement. Traders who correctly predicted the temperature range receive their payout, while incorrect positions expire worthless. The exact temperature reading becomes the single source of truth for determining all winning and losing shares.

Weather pattern shifts, updated meteorological forecasts, and seasonal climate anomalies can all influence trader positioning in this market. Major weather systems moving toward São Paulo, changes in atmospheric pressure, or unexpected heat waves would likely trigger sharp price movements as traders reassess probabilities. News about climate events affecting South America or regional temperature records may also sway sentiment. As July 4 approaches, real-time weather updates and short-term forecasts become more precise, typically narrowing the range of plausible outcomes and concentrating trading volume around the most likely temperature bands. Early-week forecasts often trigger larger repricing than late-stage adjustments.