Trader consensus on Polymarket has locked in 27°C or higher as virtually certain for Istanbul's highest temperature today, driven by official forecasts from the Turkish State Meteorological Service (MGM) and global models like ECMWF projecting daytime highs of 27-28°C under persistent high-pressure ridging and mostly sunny skies. Morning observations at Istanbul Atatürk Airport (LTBA) already show temperatures climbing from 17°C at dawn to the low 20s by midday, aligning with rapid diurnal warming typical for May's climatological norms—averaging 21°C but exceeding that amid this season's above-normal warmth. Model ensembles exhibit tight agreement on peak heat between 1400-1600 UTC, with minimal cloud interference. Realistic challenges include an unforeseen sea breeze surge from the Bosphorus cooling urban heat islands or a late-afternoon model bust, though probabilities remain under 1% per current data. Evening MGM bulletins will confirm the official max.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Istanbul on May 12?
Highest temperature in Istanbul on May 12?
27°C or higher 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$41,548 Vol.
$41,548 Vol.
May 12, 2026
17°C or below
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
No
26°C
No
27°C or higher
Yes
27°C or higher 100.0%
17°C or below <1%
18°C <1%
19°C <1%
$41,548 Vol.
$41,548 Vol.
May 12, 2026
17°C or below
$3,668 Vol.
No
18°C
$542 Vol.
No
19°C
$743 Vol.
No
20°C
$1,161 Vol.
No
21°C
$3,379 Vol.
No
22°C
$8,668 Vol.
No
23°C
$5,695 Vol.
No
24°C
$4,919 Vol.
No
25°C
$3,471 Vol.
No
26°C
$3,623 Vol.
No
27°C or higher
$5,678 Vol.
Yes
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 12 May '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column on the specified date once information is finalized for all hours on that date, 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 to "Yes" until data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket has locked in 27°C or higher as virtually certain for Istanbul's highest temperature today, driven by official forecasts from the Turkish State Meteorological Service (MGM) and global models like ECMWF projecting daytime highs of 27-28°C under persistent high-pressure ridging and mostly sunny skies. Morning observations at Istanbul Atatürk Airport (LTBA) already show temperatures climbing from 17°C at dawn to the low 20s by midday, aligning with rapid diurnal warming typical for May's climatological norms—averaging 21°C but exceeding that amid this season's above-normal warmth. Model ensembles exhibit tight agreement on peak heat between 1400-1600 UTC, with minimal cloud interference. Realistic challenges include an unforeseen sea breeze surge from the Bosphorus cooling urban heat islands or a late-afternoon model bust, though probabilities remain under 1% per current data. Evening MGM bulletins will confirm the official max.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 12 May '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column on the specified date once information is finalized for all hours on that date, 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 to "Yes" until data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column on the specified date once information is finalized for all hours on that date, 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 to "Yes" until data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: May 10, 2026, 12:19 AM ET
Volume
$41,548End Date
May 12, 2026Market Opened
May 10, 2026, 12:19 AM ETResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 12 May '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column on the specified date once information is finalized for all hours on that date, 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 to "Yes" until data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Trader consensus on Polymarket has locked in 27°C or higher as virtually certain for Istanbul's highest temperature today, driven by official forecasts from the Turkish State Meteorological Service (MGM) and global models like ECMWF projecting daytime highs of 27-28°C under persistent high-pressure ridging and mostly sunny skies. Morning observations at Istanbul Atatürk Airport (LTBA) already show temperatures climbing from 17°C at dawn to the low 20s by midday, aligning with rapid diurnal warming typical for May's climatological norms—averaging 21°C but exceeding that amid this season's above-normal warmth. Model ensembles exhibit tight agreement on peak heat between 1400-1600 UTC, with minimal cloud interference. Realistic challenges include an unforeseen sea breeze surge from the Bosphorus cooling urban heat islands or a late-afternoon model bust, though probabilities remain under 1% per current data. Evening MGM bulletins will confirm the official max.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 12 May '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column on the specified date once information is finalized for all hours on that date, 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 to "Yes" until data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column on the specified date once information is finalized for all hours on that date, 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 to "Yes" until data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$41,548End Date
May 12, 2026Market Opened
May 10, 2026, 12:19 AM ETResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus on Polymarket has locked in 27°C or higher as virtually certain for Istanbul's highest temperature today, driven by official forecasts from the Turkish State Meteorological Service (MGM) and global models like ECMWF projecting daytime highs of 27-28°C under persistent high-pressure ridging and mostly sunny skies. Morning observations at Istanbul Atatürk Airport (LTBA) already show temperatures climbing from 17°C at dawn to the low 20s by midday, aligning with rapid diurnal warming typical for May's climatological norms—averaging 21°C but exceeding that amid this season's above-normal warmth. Model ensembles exhibit tight agreement on peak heat between 1400-1600 UTC, with minimal cloud interference. Realistic challenges include an unforeseen sea breeze surge from the Bosphorus cooling urban heat islands or a late-afternoon model bust, though probabilities remain under 1% per current data. Evening MGM bulletins will confirm the official max.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
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