Recent ECMWF and GFS ensemble forecasts project Istanbul's highest temperature on April 4 at 10–13°C, driving trader consensus with 12°C (35.5% implied probability) and 13°C (25.5%) leading outcomes amid persistent cloud cover and light showers carrying over from April 3's midday peak of ~14°C. Cool air mass over the Marmara region, combined with overcast skies limiting solar heating, positions these as frontrunners against early April climatological averages of ~15°C. Higher probabilities for 14–15°C reflect model spread and potential clearing, while extremes remain unlikely. Turkish State Meteorological Service (MGM) updates and final NOAA observations at Istanbul Airport will refine trajectories before resolution.
Experimental AI-generated summary referencing Polymarket data · UpdatedHighest temperature in Istanbul on April 4?
Highest temperature in Istanbul on April 4?
12°C 36%
13°C 26%
15°C 13%
14°C 11%
$11,029 Vol.
$11,029 Vol.
6°C or below
<1%
7°C
<1%
8°C
<1%
9°C
1%
10°C
2%
11°C
8%
12°C
36%
13°C
26%
14°C
11%
15°C
13%
16°C or higher
5%
12°C 36%
13°C 26%
15°C 13%
14°C 11%
$11,029 Vol.
$11,029 Vol.
6°C or below
<1%
7°C
<1%
8°C
<1%
9°C
1%
10°C
2%
11°C
8%
12°C
36%
13°C
26%
14°C
11%
15°C
13%
16°C or higher
5%
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: Mar 29, 2026, 3:28 PM ET
Resolver
0x69c47De9D...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.
Resolver
0x69c47De9D...Recent ECMWF and GFS ensemble forecasts project Istanbul's highest temperature on April 4 at 10–13°C, driving trader consensus with 12°C (35.5% implied probability) and 13°C (25.5%) leading outcomes amid persistent cloud cover and light showers carrying over from April 3's midday peak of ~14°C. Cool air mass over the Marmara region, combined with overcast skies limiting solar heating, positions these as frontrunners against early April climatological averages of ~15°C. Higher probabilities for 14–15°C reflect model spread and potential clearing, while extremes remain unlikely. Turkish State Meteorological Service (MGM) updates and final NOAA observations at Istanbul Airport will refine trajectories before resolution.
Experimental AI-generated summary referencing Polymarket data · Updated
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