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Highest temperature in Istanbul on August 13?

icon for Highest temperature in Istanbul on August 13?

Highest temperature in Istanbul on August 13?

28°C 41%

27°C 40%

26°C 11%

29°C 10%

Polymarket
NEW

28°C 41%

27°C 40%

26°C 11%

29°C 10%

Polymarket
NEW

23°C or below

$39 Vol.

<1%

24°C

$27 Vol.

1%

25°C

$97 Vol.

5%

26°C

$159 Vol.

11%

27°C

$346 Vol.

40%

28°C

$164 Vol.

41%

29°C

$43 Vol.

10%

30°C

$43 Vol.

2%

31°C

$15 Vol.

6%

32°C

$12 Vol.

2%

33°C or higher

$27 Vol.

<1%

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 13 Aug '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=LTFM To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.Current ensemble forecasts from global and regional models place Istanbul under stable high-pressure conditions with clear skies and light northerly flow for August 13, supporting afternoon maxima clustered around 27–28 °C. This aligns with long-term August climatology of 27–29 °C daily highs while reflecting modest uncertainty from boundary-layer mixing, Bosphorus sea-breeze timing, and small spreads in ECMWF/GFS guidance on peak insolation and dew-point depression. The near-even market split between 27 °C and 28 °C captures this narrow forecast range, with traders weighting the latest short-range runs that favor slight cooling from increased wind or minor cloud. Updated model cycles and surface observations through August 12 will further refine the precise threshold.

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 13 Aug '26.

The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=LTFM

To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
Volume
$973
End Date
Aug 13, 2026
Market Opened
Aug 11, 2026, 1:03 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 13 Aug '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=LTFM To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 13 Aug '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=LTFM To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.Current ensemble forecasts from global and regional models place Istanbul under stable high-pressure conditions with clear skies and light northerly flow for August 13, supporting afternoon maxima clustered around 27–28 °C. This aligns with long-term August climatology of 27–29 °C daily highs while reflecting modest uncertainty from boundary-layer mixing, Bosphorus sea-breeze timing, and small spreads in ECMWF/GFS guidance on peak insolation and dew-point depression. The near-even market split between 27 °C and 28 °C captures this narrow forecast range, with traders weighting the latest short-range runs that favor slight cooling from increased wind or minor cloud. Updated model cycles and surface observations through August 12 will further refine the precise threshold.

This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 13 Aug '26.

The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=LTFM

To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
Volume
$973
End Date
Aug 13, 2026
Market Opened
Aug 11, 2026, 1:03 AM ET
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 13 Aug '26. The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=LTFM To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.

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Frequently Asked Questions

"Highest temperature in Istanbul on August 13?" is a prediction market on Polymarket with 11 possible outcomes where traders buy and sell shares based on what they believe will happen. The current leading outcome is "28°C" at 41%, followed by "27°C" at 40%. Prices reflect real-time crowd-sourced probabilities. For example, a share priced at 41¢ implies that the market collectively assigns a 41% 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.

"Highest temperature in Istanbul on August 13?" is a newly created market on Polymarket, launched on Aug 11, 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 "Highest temperature in Istanbul on August 13?," browse the 11 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 "Highest temperature in Istanbul on August 13?" is "28°C" at 41%, meaning the market assigns a 41% chance to that outcome. The next closest outcome is "27°C" at 40%. 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 "Highest temperature in Istanbul on August 13?" 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.