Recent forecasts for Istanbul indicate a minimum temperature near 18–19°C on September 13, with daytime highs of 24–27°C under partly cloudy skies and light northeasterly winds. Model consensus from sources such as the Met Office and local meteorological services shows a modest cooling trend from early September’s above-normal readings (daily minima mostly 18–20°C), driven by increased cloud cover and a 40–75% chance of light precipitation that could limit overnight radiative cooling. Trader sentiment remains closely balanced between sub-15°C and 25°C+ outcomes because small shifts in frontal timing, humidity levels, or wind patterns can alter the exact minimum by several degrees, while historical September norms (around 17°C) provide limited guidance amid current variability. Updated model runs and official Turkish Meteorological Service briefings expected in the next 24–48 hours will likely refine these probabilities.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Istanbul on September 13?
15°C or below 93%
25°C or higher 92%
16°C 40%
17°C 40%
15°C or below
93%
16°C
40%
17°C
40%
18°C
22%
19°C
22%
20°C
22%
21°C
40%
22°C
40%
23°C
40%
24°C
40%
25°C or higher
92%
15°C or below 93%
25°C or higher 92%
16°C 40%
17°C 40%
15°C or below
93%
16°C
40%
17°C
40%
18°C
22%
19°C
22%
20°C
22%
21°C
40%
22°C
40%
23°C
40%
24°C
40%
25°C or higher
92%
The resolution source for this market will be information from NOAA, specifically the lowest 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 11, 2026, 12:31 AM ET
Resolver
0x69c47De9D...The resolution source for this market will be information from NOAA, specifically the lowest 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.
Resolver
0x69c47De9D...Recent forecasts for Istanbul indicate a minimum temperature near 18–19°C on September 13, with daytime highs of 24–27°C under partly cloudy skies and light northeasterly winds. Model consensus from sources such as the Met Office and local meteorological services shows a modest cooling trend from early September’s above-normal readings (daily minima mostly 18–20°C), driven by increased cloud cover and a 40–75% chance of light precipitation that could limit overnight radiative cooling. Trader sentiment remains closely balanced between sub-15°C and 25°C+ outcomes because small shifts in frontal timing, humidity levels, or wind patterns can alter the exact minimum by several degrees, while historical September norms (around 17°C) provide limited guidance amid current variability. Updated model runs and official Turkish Meteorological Service briefings expected in the next 24–48 hours will likely refine these probabilities.
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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