Recent forecasts from the Finnish Meteorological Institute, Foreca, and Yr.no converge on a daily low near 8–9°C for Helsinki on September 22, driven by mostly clear skies and northerly winds that favor radiative cooling under autumn conditions with reduced solar heating. Model differences in overnight cloud cover and wind speed create the primary uncertainty separating 6°C, 7°C, and 8°C outcomes, as even modest increases in cloudiness or wind could limit cooling by 1–2°C while clearer, calmer conditions could push minima lower. Historical September 22 lows average around 8°C, providing a baseline against which current model consensus sits slightly above normal. Market-implied odds clustered near these values reflect traders weighing the narrow spread in deterministic and ensemble guidance two days ahead of resolution.
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 22?
Lowest temperature in Helsinki on September 22?
6°C 40%
7°C 40%
8°C 39%
5°C 19%
NEW
NEW
Sep 22, 2026
3°C or below
7%
4°C
11%
5°C
19%
6°C
40%
7°C
40%
8°C
39%
9°C
18%
10°C
11%
11°C
7%
12°C
4%
13°C or higher
4%
6°C 40%
7°C 40%
8°C 39%
5°C 19%
NEW
NEW
Sep 22, 2026
3°C or below
$0 Vol.
7%
4°C
$0 Vol.
11%
5°C
$0 Vol.
19%
6°C
$0 Vol.
40%
7°C
$0 Vol.
40%
8°C
$0 Vol.
39%
9°C
$0 Vol.
18%
10°C
$0 Vol.
11%
11°C
$0 Vol.
7%
12°C
$0 Vol.
4%
13°C or higher
$0 Vol.
4%
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 22 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.Recent forecasts from the Finnish Meteorological Institute, Foreca, and Yr.no converge on a daily low near 8–9°C for Helsinki on September 22, driven by mostly clear skies and northerly winds that favor radiative cooling under autumn conditions with reduced solar heating. Model differences in overnight cloud cover and wind speed create the primary uncertainty separating 6°C, 7°C, and 8°C outcomes, as even modest increases in cloudiness or wind could limit cooling by 1–2°C while clearer, calmer conditions could push minima lower. Historical September 22 lows average around 8°C, providing a baseline against which current model consensus sits slightly above normal. Market-implied odds clustered near these values reflect traders weighing the narrow spread in deterministic and ensemble guidance two days ahead of resolution.
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 22 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 20, 2026, 12:31 AM ET
Volume
$0End Date
Sep 22, 2026Market Opened
Sep 20, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...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 22 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.Recent forecasts from the Finnish Meteorological Institute, Foreca, and Yr.no converge on a daily low near 8–9°C for Helsinki on September 22, driven by mostly clear skies and northerly winds that favor radiative cooling under autumn conditions with reduced solar heating. Model differences in overnight cloud cover and wind speed create the primary uncertainty separating 6°C, 7°C, and 8°C outcomes, as even modest increases in cloudiness or wind could limit cooling by 1–2°C while clearer, calmer conditions could push minima lower. Historical September 22 lows average around 8°C, providing a baseline against which current model consensus sits slightly above normal. Market-implied odds clustered near these values reflect traders weighing the narrow spread in deterministic and ensemble guidance two days ahead of resolution.
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 22 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
$0End Date
Sep 22, 2026Market Opened
Sep 20, 2026, 12:31 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent forecasts from the Finnish Meteorological Institute, Foreca, and Yr.no converge on a daily low near 8–9°C for Helsinki on September 22, driven by mostly clear skies and northerly winds that favor radiative cooling under autumn conditions with reduced solar heating. Model differences in overnight cloud cover and wind speed create the primary uncertainty separating 6°C, 7°C, and 8°C outcomes, as even modest increases in cloudiness or wind could limit cooling by 1–2°C while clearer, calmer conditions could push minima lower. Historical September 22 lows average around 8°C, providing a baseline against which current model consensus sits slightly above normal. Market-implied odds clustered near these values reflect traders weighing the narrow spread in deterministic and ensemble guidance two days ahead of resolution.
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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