Trader consensus has converged on a 9°C minimum in Helsinki on September 11 due to real-time observations and forecast model agreement showing overnight lows stabilizing near that threshold under clear skies and moderate westerly winds. Finnish Meteorological Institute data and international models indicate radiative cooling will bottom out around 8–10°C, consistent with the climatological average low of 10°C but tempered by current atmospheric conditions. This skin-in-the-game assessment reflects high confidence in the absence of major shifts in steering patterns or cloud cover. A rapid increase in cloudiness or an unexpected wind veer could modestly raise the minimum, while stronger radiative cooling under prolonged clear conditions remains the primary risk for a slightly lower reading.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedLowest temperature in Helsinki on September 11?
Lowest temperature in Helsinki on September 11?
9°C 100.0%
7°C 4%
6°C or below <1%
8°C <1%
$704 Vol.
$704 Vol.
Sep 11, 2026
6°C or below
No
7°C
No
8°C
No
9°C
Yes
10°C
No
11°C
No
12°C
No
13°C
No
14°C
No
15°C
No
16°C or higher
No
9°C 100.0%
7°C 4%
6°C or below <1%
8°C <1%
$704 Vol.
$704 Vol.
Sep 11, 2026
6°C or below
$45 Vol.
No
7°C
$25 Vol.
No
8°C
$284 Vol.
No
9°C
$125 Vol.
Yes
10°C
$73 Vol.
No
11°C
$92 Vol.
No
12°C
$0 Vol.
No
13°C
$15 Vol.
No
14°C
$15 Vol.
No
15°C
$15 Vol.
No
16°C or higher
$15 Vol.
No
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 11 Sep '26.
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=efhk
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.Trader consensus has converged on a 9°C minimum in Helsinki on September 11 due to real-time observations and forecast model agreement showing overnight lows stabilizing near that threshold under clear skies and moderate westerly winds. Finnish Meteorological Institute data and international models indicate radiative cooling will bottom out around 8–10°C, consistent with the climatological average low of 10°C but tempered by current atmospheric conditions. This skin-in-the-game assessment reflects high confidence in the absence of major shifts in steering patterns or cloud cover. A rapid increase in cloudiness or an unexpected wind veer could modestly raise the minimum, while stronger radiative cooling under prolonged clear conditions remains the primary risk for a slightly lower reading.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 11 Sep '26.
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=efhk
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 lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
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, 12:31 AM ET
Volume
$704End Date
Sep 11, 2026Market Opened
Sep 9, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 11 Sep '26.
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=efhk
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.Trader consensus has converged on a 9°C minimum in Helsinki on September 11 due to real-time observations and forecast model agreement showing overnight lows stabilizing near that threshold under clear skies and moderate westerly winds. Finnish Meteorological Institute data and international models indicate radiative cooling will bottom out around 8–10°C, consistent with the climatological average low of 10°C but tempered by current atmospheric conditions. This skin-in-the-game assessment reflects high confidence in the absence of major shifts in steering patterns or cloud cover. A rapid increase in cloudiness or an unexpected wind veer could modestly raise the minimum, while stronger radiative cooling under prolonged clear conditions remains the primary risk for a slightly lower reading.
This market will resolve to the temperature range that contains the lowest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 11 Sep '26.
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=efhk
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 lowest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
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
$704End Date
Sep 11, 2026Market Opened
Sep 9, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus has converged on a 9°C minimum in Helsinki on September 11 due to real-time observations and forecast model agreement showing overnight lows stabilizing near that threshold under clear skies and moderate westerly winds. Finnish Meteorological Institute data and international models indicate radiative cooling will bottom out around 8–10°C, consistent with the climatological average low of 10°C but tempered by current atmospheric conditions. This skin-in-the-game assessment reflects high confidence in the absence of major shifts in steering patterns or cloud cover. A rapid increase in cloudiness or an unexpected wind veer could modestly raise the minimum, while stronger radiative cooling under prolonged clear conditions remains the primary risk for a slightly lower reading.
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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