Trader consensus overwhelmingly favors a lowest temperature of 2°C or below in Helsinki on September 15 due to a persistent influx of Arctic air and clear nocturnal conditions favoring strong radiative cooling. Official monitoring from the Finnish Meteorological Institute and aligned global forecast models show overnight minima aligning with this threshold, consistent with the historical record low of 1.6°C for the date. This skin-in-the-game positioning reflects verified observational trends and model agreement rather than typical mid-September averages near 9°C. Resolution hinges on the official daily minimum reported by local stations; any unexpected warming from shifting winds or increased cloud cover could alter the final reading before close.
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 15?
Lowest temperature in Helsinki on September 15?
2°C or below 100%
3°C <1%
4°C <1%
5°C <1%
$3,667 Vol.
$3,667 Vol.
Sep 15, 2026
2°C or below
Yes
3°C
No
4°C
No
5°C
No
6°C
No
7°C
No
8°C
No
9°C
No
10°C
No
11°C
No
12°C or higher
No
2°C or below 100%
3°C <1%
4°C <1%
5°C <1%
$3,667 Vol.
$3,667 Vol.
Sep 15, 2026
2°C or below
$1,363 Vol.
Yes
3°C
$694 Vol.
No
4°C
$316 Vol.
No
5°C
$292 Vol.
No
6°C
$341 Vol.
No
7°C
$214 Vol.
No
8°C
$102 Vol.
No
9°C
$86 Vol.
No
10°C
$86 Vol.
No
11°C
$86 Vol.
No
12°C or higher
$86 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 15 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 overwhelmingly favors a lowest temperature of 2°C or below in Helsinki on September 15 due to a persistent influx of Arctic air and clear nocturnal conditions favoring strong radiative cooling. Official monitoring from the Finnish Meteorological Institute and aligned global forecast models show overnight minima aligning with this threshold, consistent with the historical record low of 1.6°C for the date. This skin-in-the-game positioning reflects verified observational trends and model agreement rather than typical mid-September averages near 9°C. Resolution hinges on the official daily minimum reported by local stations; any unexpected warming from shifting winds or increased cloud cover could alter the final reading before close.
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 15 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 13, 2026, 1:32 PM ET
Volume
$3,667End Date
Sep 15, 2026Market Opened
Sep 13, 2026, 1:32 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47de9d...Outcome proposed: Yes
No dispute
Final outcome: Yes
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 15 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 overwhelmingly favors a lowest temperature of 2°C or below in Helsinki on September 15 due to a persistent influx of Arctic air and clear nocturnal conditions favoring strong radiative cooling. Official monitoring from the Finnish Meteorological Institute and aligned global forecast models show overnight minima aligning with this threshold, consistent with the historical record low of 1.6°C for the date. This skin-in-the-game positioning reflects verified observational trends and model agreement rather than typical mid-September averages near 9°C. Resolution hinges on the official daily minimum reported by local stations; any unexpected warming from shifting winds or increased cloud cover could alter the final reading before close.
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 15 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
$3,667End Date
Sep 15, 2026Market Opened
Sep 13, 2026, 1:32 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47de9d...Outcome proposed: Yes
No dispute
Final outcome: Yes
Trader consensus overwhelmingly favors a lowest temperature of 2°C or below in Helsinki on September 15 due to a persistent influx of Arctic air and clear nocturnal conditions favoring strong radiative cooling. Official monitoring from the Finnish Meteorological Institute and aligned global forecast models show overnight minima aligning with this threshold, consistent with the historical record low of 1.6°C for the date. This skin-in-the-game positioning reflects verified observational trends and model agreement rather than typical mid-September averages near 9°C. Resolution hinges on the official daily minimum reported by local stations; any unexpected warming from shifting winds or increased cloud cover could alter the final reading before close.
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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