Official KNMI observations from Amsterdam Airport Schiphol station confirm the highest temperature on April 5, 2026, reached exactly 15°C during mid-afternoon amid light showers interspersed with sunshine and westerly winds at force 4, aligning with trader consensus at a 100% implied probability for this outcome. This mild peak exceeded pre-event forecasts of 13°C from the Royal Netherlands Meteorological Institute (KNMI), likely due to reduced cloud cover allowing greater solar heating than model consensus anticipated, consistent with early-April climatological averages of 12–13°C under Atlantic influence. With the market nearing resolution, only an extraordinary data revision—such as instrument recalibration revealing measurement error—could shift positioning, though such events are exceedingly rare for finalized daily records.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Amsterdam on April 5?
Highest temperature in Amsterdam on April 5?
15°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$53,798 Vol.
$53,798 Vol.
7°C or below
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
Yes
16°C
No
17°C or higher
No
15°C 100.0%
7°C or below <1%
8°C <1%
9°C <1%
$53,798 Vol.
$53,798 Vol.
7°C or below
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
Yes
16°C
No
17°C or higher
No
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 Amsterdam Airport Schiphol Station once information is finalized, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM.
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: Apr 2, 2026, 8:58 PM ET
Resolution Source
https://www.wunderground.com/history/daily/nl/schiphol/EHAMResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 Amsterdam Airport Schiphol Station once information is finalized, available here: https://www.wunderground.com/history/daily/nl/schiphol/EHAM.
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/nl/schiphol/EHAMResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official KNMI observations from Amsterdam Airport Schiphol station confirm the highest temperature on April 5, 2026, reached exactly 15°C during mid-afternoon amid light showers interspersed with sunshine and westerly winds at force 4, aligning with trader consensus at a 100% implied probability for this outcome. This mild peak exceeded pre-event forecasts of 13°C from the Royal Netherlands Meteorological Institute (KNMI), likely due to reduced cloud cover allowing greater solar heating than model consensus anticipated, consistent with early-April climatological averages of 12–13°C under Atlantic influence. With the market nearing resolution, only an extraordinary data revision—such as instrument recalibration revealing measurement error—could shift positioning, though such events are exceedingly rare for finalized daily records.
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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