Recent forecast updates from models such as GFS and ECMWF highlight stable high-pressure conditions and mostly clear skies over Istanbul, promoting moderate radiative cooling overnight but limiting deeper drops due to light northeasterly or southwesterly winds and elevated humidity near the Bosphorus. These factors, combined with sea surface temperatures supporting warmer boundary layers than September climatological averages of around 17°C, have concentrated trader sentiment on 17–19°C as the implied minimum for September 6. Slight model divergences in nocturnal cooling rates and urban heat retention create the tight spread across nearby outcomes, with resolution hinging on precise overnight observations from official stations.
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 6?
14°C 50%
15°C 50%
16°C 50%
22°C 50%
13°C or below
44%
14°C
50%
15°C
50%
16°C
50%
17°C
27%
18°C
29%
19°C
27%
20°C
27%
21°C
27%
22°C
50%
23°C or higher
44%
14°C 50%
15°C 50%
16°C 50%
22°C 50%
13°C or below
44%
14°C
50%
15°C
50%
16°C
50%
17°C
27%
18°C
29%
19°C
27%
20°C
27%
21°C
27%
22°C
50%
23°C or higher
44%
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 4, 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 forecast updates from models such as GFS and ECMWF highlight stable high-pressure conditions and mostly clear skies over Istanbul, promoting moderate radiative cooling overnight but limiting deeper drops due to light northeasterly or southwesterly winds and elevated humidity near the Bosphorus. These factors, combined with sea surface temperatures supporting warmer boundary layers than September climatological averages of around 17°C, have concentrated trader sentiment on 17–19°C as the implied minimum for September 6. Slight model divergences in nocturnal cooling rates and urban heat retention create the tight spread across nearby outcomes, with resolution hinging on precise overnight observations from official stations.
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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