Recent European model runs and official guidance from agencies like the Met Office indicate a mild September day in Amsterdam with daytime maxima likely peaking near 19–20°C under light southerly flow, increasing cloud cover, and scattered light rain that limits solar heating. Persistent high pressure to the east maintains stable conditions without strong advection of warmer air, keeping values close to the long-term September average high of about 19.6°C. Minor differences among leading outcomes hinge on the precise timing and intensity of showers versus any afternoon breaks in cloud, with updated model guidance expected in the next 24–48 hours to refine the peak reading. Traders price the 20°C outcome highest given this narrow forecast spread.
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 September 11?
Highest temperature in Amsterdam on September 11?
20°C 46%
19°C 30%
21°C 24%
17°C 9%
NEW
NEW
Sep 11, 2026
14°C or below
2%
15°C
2%
16°C
3%
17°C
9%
18°C
8%
19°C
24%
20°C
46%
21°C
24%
22°C
5%
23°C
4%
24°C or higher
1%
20°C 46%
19°C 30%
21°C 24%
17°C 9%
NEW
NEW
Sep 11, 2026
14°C or below
$0 Vol.
2%
15°C
$0 Vol.
2%
16°C
$0 Vol.
3%
17°C
$0 Vol.
9%
18°C
$0 Vol.
8%
19°C
$29 Vol.
24%
20°C
$97 Vol.
46%
21°C
$0 Vol.
24%
22°C
$0 Vol.
5%
23°C
$0 Vol.
4%
24°C or higher
$0 Vol.
1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Amsterdam Airport Schiphol Station in degrees Celsius on 11 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eham
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.Recent European model runs and official guidance from agencies like the Met Office indicate a mild September day in Amsterdam with daytime maxima likely peaking near 19–20°C under light southerly flow, increasing cloud cover, and scattered light rain that limits solar heating. Persistent high pressure to the east maintains stable conditions without strong advection of warmer air, keeping values close to the long-term September average high of about 19.6°C. Minor differences among leading outcomes hinge on the precise timing and intensity of showers versus any afternoon breaks in cloud, with updated model guidance expected in the next 24–48 hours to refine the peak reading. Traders price the 20°C outcome highest given this narrow forecast spread.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Amsterdam Airport Schiphol Station in degrees Celsius on 11 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eham
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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eham
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 9, 2026, 12:58 AM ET
Volume
$126End Date
Sep 11, 2026Market Opened
Sep 9, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ehamResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Amsterdam Airport Schiphol Station in degrees Celsius on 11 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eham
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.Recent European model runs and official guidance from agencies like the Met Office indicate a mild September day in Amsterdam with daytime maxima likely peaking near 19–20°C under light southerly flow, increasing cloud cover, and scattered light rain that limits solar heating. Persistent high pressure to the east maintains stable conditions without strong advection of warmer air, keeping values close to the long-term September average high of about 19.6°C. Minor differences among leading outcomes hinge on the precise timing and intensity of showers versus any afternoon breaks in cloud, with updated model guidance expected in the next 24–48 hours to refine the peak reading. Traders price the 20°C outcome highest given this narrow forecast spread.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Amsterdam Airport Schiphol Station in degrees Celsius on 11 Sep '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eham
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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=eham
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.
Volume
$126End Date
Sep 11, 2026Market Opened
Sep 9, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=ehamResolver
0x69c47De9D...Recent European model runs and official guidance from agencies like the Met Office indicate a mild September day in Amsterdam with daytime maxima likely peaking near 19–20°C under light southerly flow, increasing cloud cover, and scattered light rain that limits solar heating. Persistent high pressure to the east maintains stable conditions without strong advection of warmer air, keeping values close to the long-term September average high of about 19.6°C. Minor differences among leading outcomes hinge on the precise timing and intensity of showers versus any afternoon breaks in cloud, with updated model guidance expected in the next 24–48 hours to refine the peak reading. Traders price the 20°C outcome highest given this narrow forecast spread.
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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