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icon for August 2026 Temperature Increase (ºC)

August 2026 Temperature Increase (ºC)

icon for August 2026 Temperature Increase (ºC)

August 2026 Temperature Increase (ºC)

<1.10ºC 38%

1.10–1.14ºC 38%

>1.29ºC 37%

1.25–1.29ºC 35%

Polymarket
NEW

<1.10ºC 38%

1.10–1.14ºC 38%

>1.29ºC 37%

1.25–1.29ºC 35%

Polymarket
NEW

<1.10ºC

$20 Vol.

38%

1.10–1.14ºC

$0 Vol.

38%

1.15–1.19ºC

$0 Vol.

34%

1.20–1.24ºC

$0 Vol.

34%

1.25–1.29ºC

$0 Vol.

35%

>1.29ºC

$0 Vol.

37%

This market will resolve according to the value reported by the Global Land-Ocean Temperature Index for August 2026 when it is released. An anomaly within a named bracket for August 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for August 2026 is later revised. The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "Aug" in the row "2026" (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt). If NASA’s “Global Temperature Index” is rendered permanently unavailable, other information from NASA may be used. If no information for August 2026 is provided by NASA by October 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.A developing strong El Niño event, with Niño 3.4 sea surface temperature anomalies already exceeding +2°C in mid-July 2026 and models projecting further intensification toward 2°C or higher by late summer, serves as the dominant driver elevating trader expectations for August global mean surface temperatures. This Pacific warming, superimposed on a long-term anthropogenic trend near 1.4–1.5°C above pre-industrial levels, favors anomalies in the upper bins around 1.2–1.3°C or above, consistent with June 2026 observations of 1.49°C. Differentiation among closely matched outcomes hinges on the precise timing of El Niño peak influence, potential modulation by positive Indian Ocean Dipole conditions, and short-term variability in Arctic and land-surface feedbacks. Upcoming August data releases from NOAA and Berkeley Earth will clarify resolution thresholds.

This market will resolve according to the value reported by the Global Land-Ocean Temperature Index for August 2026 when it is released.

An anomaly within a named bracket for August 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for August 2026 is later revised.

The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "Aug" in the row "2026" (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt).

If NASA’s “Global Temperature Index” is rendered permanently unavailable, other information from NASA may be used.

If no information for August 2026 is provided by NASA by October 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.
Volume
$20
End Date
Sep 1, 2026
Market Opened
Jul 28, 2026, 1:48 PM ET
This market will resolve according to the value reported by the Global Land-Ocean Temperature Index for August 2026 when it is released. An anomaly within a named bracket for August 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for August 2026 is later revised. The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "Aug" in the row "2026" (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt). If NASA’s “Global Temperature Index” is rendered permanently unavailable, other information from NASA may be used. If no information for August 2026 is provided by NASA by October 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.
This market will resolve according to the value reported by the Global Land-Ocean Temperature Index for August 2026 when it is released. An anomaly within a named bracket for August 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for August 2026 is later revised. The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "Aug" in the row "2026" (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt). If NASA’s “Global Temperature Index” is rendered permanently unavailable, other information from NASA may be used. If no information for August 2026 is provided by NASA by October 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.A developing strong El Niño event, with Niño 3.4 sea surface temperature anomalies already exceeding +2°C in mid-July 2026 and models projecting further intensification toward 2°C or higher by late summer, serves as the dominant driver elevating trader expectations for August global mean surface temperatures. This Pacific warming, superimposed on a long-term anthropogenic trend near 1.4–1.5°C above pre-industrial levels, favors anomalies in the upper bins around 1.2–1.3°C or above, consistent with June 2026 observations of 1.49°C. Differentiation among closely matched outcomes hinges on the precise timing of El Niño peak influence, potential modulation by positive Indian Ocean Dipole conditions, and short-term variability in Arctic and land-surface feedbacks. Upcoming August data releases from NOAA and Berkeley Earth will clarify resolution thresholds.

This market will resolve according to the value reported by the Global Land-Ocean Temperature Index for August 2026 when it is released.

An anomaly within a named bracket for August 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for August 2026 is later revised.

The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "Aug" in the row "2026" (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt).

If NASA’s “Global Temperature Index” is rendered permanently unavailable, other information from NASA may be used.

If no information for August 2026 is provided by NASA by October 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.
Volume
$20
End Date
Sep 1, 2026
Market Opened
Jul 28, 2026, 1:48 PM ET
This market will resolve according to the value reported by the Global Land-Ocean Temperature Index for August 2026 when it is released. An anomaly within a named bracket for August 2026 is necessary and sufficient to resolve this market immediately once the data becomes available, regardless of whether the figure for August 2026 is later revised. The primary resolution source for this market will be the figure found in the table titled "GLOBAL Land-Ocean Temperature Index in 0.01 degrees Celsius" under the column "Aug" in the row "2026" (https://data.giss.nasa.gov/gistemp/tabledata_v4/GLB.Ts+dSST.txt). If NASA’s “Global Temperature Index” is rendered permanently unavailable, other information from NASA may be used. If no information for August 2026 is provided by NASA by October 1, 2026, 11:59 PM ET, this market will resolve to the lowest range bracket.

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Frequently Asked Questions

"August 2026 Temperature Increase (ºC)" is a prediction market on Polymarket with 6 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "<1.10ºC" at 38%, followed by "1.10–1.14ºC" at 38%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 38¢ implies that the market collectively assigns a 38% chance to that outcome. These odds shift continuously as traders react to new developments and information. Shares in the correct outcome are redeemable for $1 each upon market resolution.

"August 2026 Temperature Increase (ºC)" is a newly created market on Polymarket, launched on Jul 28, 2026. As an early market, this is your opportunity to be among the first traders to set the odds and establish the market's initial price signals. You can also bookmark this page to track volume and trading activity as the market gains traction over time.

To trade on "August 2026 Temperature Increase (ºC)," browse the 6 available outcomes listed on this page. Each outcome displays a current price representing the market's implied probability. To take a position, select the outcome you believe is most likely, choose "Yes" to trade in favor of it or "No" to trade against it, enter your amount, and click "Trade." If your chosen outcome is correct when the market resolves, your "Yes" shares pay out $1 each. If it's incorrect, they pay out $0. You can also sell your shares at any time before resolution if you want to lock in a profit or cut a loss.

The current frontrunner for "August 2026 Temperature Increase (ºC)" is "<1.10ºC" at 38%, meaning the market assigns a 38% chance to that outcome. The next closest outcome is "1.10–1.14ºC" at 38%. These odds update in real-time as traders buy and sell shares, so they reflect the latest collective view of what's most likely to happen. Check back frequently or bookmark this page to follow how the odds shift as new information emerges.

The resolution rules for "August 2026 Temperature Increase (ºC)" define exactly what needs to happen for each outcome to be declared a winner — including the official data sources used to determine the result. You can review the complete resolution criteria in the "Rules" section on this page above the comments. We recommend reading the rules carefully before trading, as they specify the precise conditions, edge cases, and sources that govern how this market is settled.