Recent forecast model runs from sources including the Finnish Meteorological Institute and GFS indicate mild conditions for Helsinki on September 15, with overnight lows expected near 9–13°C amid southerly to westerly flow and limited cloud cover. This setup favors minimum temperatures in the 5–11°C range, yet ensemble spreads and potential shifts in steering patterns sustain roughly equal market-implied odds for 2°C or below versus 12°C or higher. Historical September climatology shows typical minima around 9°C, with variability driven by Baltic Sea temperatures and high-pressure positioning. Updated model guidance over the next 24–48 hours will likely narrow the range ahead of the daily low 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 15?
Lowest temperature in Helsinki on September 15?
12°C or higher 81%
2°C or below 42%
9°C 40%
10°C 40%
NEW
NEW
Sep 15, 2026
2°C or below
42%
3°C
21%
4°C
24%
5°C
25%
6°C
20%
7°C
21%
8°C
21%
9°C
40%
10°C
40%
11°C
39%
12°C or higher
81%
12°C or higher 81%
2°C or below 42%
9°C 40%
10°C 40%
NEW
NEW
Sep 15, 2026
2°C or below
$0 Vol.
42%
3°C
$0 Vol.
21%
4°C
$0 Vol.
24%
5°C
$0 Vol.
25%
6°C
$0 Vol.
20%
7°C
$0 Vol.
21%
8°C
$0 Vol.
21%
9°C
$10 Vol.
40%
10°C
$10 Vol.
40%
11°C
$10 Vol.
39%
12°C or higher
$10 Vol.
81%
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.Recent forecast model runs from sources including the Finnish Meteorological Institute and GFS indicate mild conditions for Helsinki on September 15, with overnight lows expected near 9–13°C amid southerly to westerly flow and limited cloud cover. This setup favors minimum temperatures in the 5–11°C range, yet ensemble spreads and potential shifts in steering patterns sustain roughly equal market-implied odds for 2°C or below versus 12°C or higher. Historical September climatology shows typical minima around 9°C, with variability driven by Baltic Sea temperatures and high-pressure positioning. Updated model guidance over the next 24–48 hours will likely narrow the range ahead of the daily low 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 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
$40End Date
Sep 15, 2026Market Opened
Sep 13, 2026, 1:32 PM 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 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.Recent forecast model runs from sources including the Finnish Meteorological Institute and GFS indicate mild conditions for Helsinki on September 15, with overnight lows expected near 9–13°C amid southerly to westerly flow and limited cloud cover. This setup favors minimum temperatures in the 5–11°C range, yet ensemble spreads and potential shifts in steering patterns sustain roughly equal market-implied odds for 2°C or below versus 12°C or higher. Historical September climatology shows typical minima around 9°C, with variability driven by Baltic Sea temperatures and high-pressure positioning. Updated model guidance over the next 24–48 hours will likely narrow the range ahead of the daily low 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 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
$40End Date
Sep 15, 2026Market Opened
Sep 13, 2026, 1:32 PM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent forecast model runs from sources including the Finnish Meteorological Institute and GFS indicate mild conditions for Helsinki on September 15, with overnight lows expected near 9–13°C amid southerly to westerly flow and limited cloud cover. This setup favors minimum temperatures in the 5–11°C range, yet ensemble spreads and potential shifts in steering patterns sustain roughly equal market-implied odds for 2°C or below versus 12°C or higher. Historical September climatology shows typical minima around 9°C, with variability driven by Baltic Sea temperatures and high-pressure positioning. Updated model guidance over the next 24–48 hours will likely narrow the range ahead of the daily low 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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