Official AEMET observations from Adolfo Suárez Madrid-Barajas Airport, the market's resolution source, report a mid-afternoon peak of around 20.7°C on May 13 amid persistent upper-level cloudiness from a lingering low-pressure trough over Iberia, driving the 100% trader consensus for a 21°C daily high. This aligns with hourly guidance from AEMET and ECMWF models, which show limited additional warming potential due to northerly winds and overcast skies suppressing surface heating below the mid-May climatological norm of 22°C. Recent weekly patterns of below-normal temperatures, confirmed by AEMET's seasonal outlook, reinforce this positioning. A realistic challenge would require an improbable late-day cloud break enabling brief solar insolation to nudge peaks to 22°C, though evening cooling is now underway with final observations pending.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Madrid on May 13?
Highest temperature in Madrid on May 13?
21°C 100.0%
22°C <1%
23°C <1%
24°C <1%
$120,597 Vol.
$120,597 Vol.
21°C
100%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C or higher
<1%
21°C 100.0%
22°C <1%
23°C <1%
24°C <1%
$120,597 Vol.
$120,597 Vol.
21°C
100%
22°C
<1%
23°C
<1%
24°C
<1%
25°C
<1%
26°C or higher
<1%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all 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 11, 2026, 12:18 AM ET
Resolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Adolfo Suárez Madrid-Barajas Airport Station once information is finalized, available here: https://www.wunderground.com/history/daily/es/madrid/LEMD.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °C.
This market can not resolve to "Yes" until all 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.
Resolution Source
https://www.wunderground.com/history/daily/es/madrid/LEMDResolver
0x69c47De9D...Official AEMET observations from Adolfo Suárez Madrid-Barajas Airport, the market's resolution source, report a mid-afternoon peak of around 20.7°C on May 13 amid persistent upper-level cloudiness from a lingering low-pressure trough over Iberia, driving the 100% trader consensus for a 21°C daily high. This aligns with hourly guidance from AEMET and ECMWF models, which show limited additional warming potential due to northerly winds and overcast skies suppressing surface heating below the mid-May climatological norm of 22°C. Recent weekly patterns of below-normal temperatures, confirmed by AEMET's seasonal outlook, reinforce this positioning. A realistic challenge would require an improbable late-day cloud break enabling brief solar insolation to nudge peaks to 22°C, though evening cooling is now underway with final observations pending.
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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