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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)

>1.29ºC 99.1%

1.25–1.29ºC <1%

1.20–1.24ºC <1%

<1.10ºC <1%

Polymarket

$14,120 Vol.

>1.29ºC 99.1%

1.25–1.29ºC <1%

1.20–1.24ºC <1%

<1.10ºC <1%

Polymarket

$14,120 Vol.

<1.10ºC

$877 Vol.

<1%

1.10–1.14ºC

$999 Vol.

<1%

1.15–1.19ºC

$1,121 Vol.

<1%

1.20–1.24ºC

$2,083 Vol.

<1%

1.25–1.29ºC

$2,759 Vol.

1%

>1.29ºC

$6,281 Vol.

99%

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.Recent observational data from agencies like Copernicus, Berkeley Earth, and NOAA confirm sustained global surface temperatures well above 1.4°C above the 1850–1900 baseline through mid-2026, driven by the long-term anthropogenic trend plus a rapidly strengthening El Niño with Niño 3.4 sea-surface temperature anomalies forecast to reach ~2.9°C by late summer. July 2026 ranked as joint-second warmest on record, and daily August readings have already set new highs for the date, reinforcing trader consensus that the August monthly anomaly will exceed 1.29°C. Model ensembles show high confidence in widespread above-normal land and ocean temperatures through the season. Only an abrupt, unprecedented cooling event or major downward revision in final datasets could realistically shift the outcome below this threshold.

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
$14,120
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.Recent observational data from agencies like Copernicus, Berkeley Earth, and NOAA confirm sustained global surface temperatures well above 1.4°C above the 1850–1900 baseline through mid-2026, driven by the long-term anthropogenic trend plus a rapidly strengthening El Niño with Niño 3.4 sea-surface temperature anomalies forecast to reach ~2.9°C by late summer. July 2026 ranked as joint-second warmest on record, and daily August readings have already set new highs for the date, reinforcing trader consensus that the August monthly anomaly will exceed 1.29°C. Model ensembles show high confidence in widespread above-normal land and ocean temperatures through the season. Only an abrupt, unprecedented cooling event or major downward revision in final datasets could realistically shift the outcome below this threshold.

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
$14,120
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 ">1.29ºC" at 99%, followed by "1.25–1.29ºC" at 1%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 99¢ implies that the market collectively assigns a 99% 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.

As of today, "August 2026 Temperature Increase (ºC)" has generated $14.1K in total trading volume since the market launched on Jul 28, 2026. This level of trading activity reflects strong engagement from the Polymarket community and helps ensure that the current odds are informed by a deep pool of market participants. You can track live price movements and trade on any outcome directly on this page.

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 ">1.29ºC" at 99%, meaning the market assigns a 99% chance to that outcome. The next closest outcome is "1.25–1.29ºC" at 1%. 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.