Official forecasts for Istanbul on September 19 project a daytime high of 24–26°C under mostly sunny skies with moderate northeasterly winds and minimal precipitation risk, aligning with the seasonal transition from summer warmth. Recent model consensus from sources such as the Met Office and GFS runs shows stable high-pressure conditions driving this range, following cooler readings earlier in the week and a departure from mid-September peaks above 30°C. Trader positioning heavily favors 24°C as the implied mode, reflecting tight clustering in numerical guidance and historical September averages near 23°C, while lower probabilities on 25°C or 23°C account for minor forecast spread typical of short-range predictions. No major updates have shifted this outlook in the past 48 hours.
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 September 19?
Highest temperature in Istanbul on September 19?
24°C 70%
23°C 21%
25°C 13%
22°C 3%
NEW
NEW
Sep 19, 2026
20°C or below
2%
21°C
2%
22°C
3%
23°C
21%
24°C
70%
25°C
13%
26°C
2%
27°C
2%
28°C
1%
29°C
<1%
30°C or higher
<1%
24°C 70%
23°C 21%
25°C 13%
22°C 3%
NEW
NEW
Sep 19, 2026
20°C or below
$40 Vol.
2%
21°C
$22 Vol.
2%
22°C
$7 Vol.
3%
23°C
$446 Vol.
21%
24°C
$548 Vol.
70%
25°C
$210 Vol.
13%
26°C
$7 Vol.
2%
27°C
$22 Vol.
2%
28°C
$180 Vol.
1%
29°C
$106 Vol.
<1%
30°C or higher
$106 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 19 Sep '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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.Official forecasts for Istanbul on September 19 project a daytime high of 24–26°C under mostly sunny skies with moderate northeasterly winds and minimal precipitation risk, aligning with the seasonal transition from summer warmth. Recent model consensus from sources such as the Met Office and GFS runs shows stable high-pressure conditions driving this range, following cooler readings earlier in the week and a departure from mid-September peaks above 30°C. Trader positioning heavily favors 24°C as the implied mode, reflecting tight clustering in numerical guidance and historical September averages near 23°C, while lower probabilities on 25°C or 23°C account for minor forecast spread typical of short-range predictions. No major updates have shifted this outlook in the past 48 hours.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 19 Sep '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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Market Opened: Sep 17, 2026, 12:58 AM ET
Volume
$1,693End Date
Sep 19, 2026Market Opened
Sep 17, 2026, 12:58 AM ETResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 19 Sep '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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.Official forecasts for Istanbul on September 19 project a daytime high of 24–26°C under mostly sunny skies with moderate northeasterly winds and minimal precipitation risk, aligning with the seasonal transition from summer warmth. Recent model consensus from sources such as the Met Office and GFS runs shows stable high-pressure conditions driving this range, following cooler readings earlier in the week and a departure from mid-September peaks above 30°C. Trader positioning heavily favors 24°C as the implied mode, reflecting tight clustering in numerical guidance and historical September averages near 23°C, while lower probabilities on 25°C or 23°C account for minor forecast spread typical of short-range predictions. No major updates have shifted this outlook in the past 48 hours.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Istanbul Airport in degrees Celsius on 19 Sep '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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
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
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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
$1,693End Date
Sep 19, 2026Market Opened
Sep 17, 2026, 12:58 AM ETResolver
0x69c47De9D...Official forecasts for Istanbul on September 19 project a daytime high of 24–26°C under mostly sunny skies with moderate northeasterly winds and minimal precipitation risk, aligning with the seasonal transition from summer warmth. Recent model consensus from sources such as the Met Office and GFS runs shows stable high-pressure conditions driving this range, following cooler readings earlier in the week and a departure from mid-September peaks above 30°C. Trader positioning heavily favors 24°C as the implied mode, reflecting tight clustering in numerical guidance and historical September averages near 23°C, while lower probabilities on 25°C or 23°C account for minor forecast spread typical of short-range predictions. No major updates have shifted this outlook in the past 48 hours.
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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