Recent numerical weather prediction consensus from models including ECMWF and GFS, aligned with Finnish Meteorological Institute guidance, positions the highest temperature in Helsinki on September 6 near 15°C as the leading outcome. Northwesterly flow is expected to moderate conditions following milder September 5 readings, keeping daytime maxima below the long-term average high of 17.1°C for the date. Ensemble spreads show limited upside risk above 16°C while supporting a floor near 14°C, consistent with the market-implied probabilities of 63.5% for 15°C and 20% for 14°C. Short-range forecast uncertainty remains low given proximity to the event, though afternoon observations from Helsinki-Vantaa will determine final resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · UpdatedHighest temperature in Helsinki on September 6?
Highest temperature in Helsinki on September 6?
15°C 64%
14°C 20%
16°C 10%
13°C 3%
NEW
NEW
Sep 6, 2026
10°C or below
<1%
11°C
<1%
12°C
1%
13°C
3%
14°C
20%
15°C
64%
16°C
10%
17°C
3%
18°C
1%
19°C
<1%
20°C or higher
<1%
15°C 64%
14°C 20%
16°C 10%
13°C 3%
NEW
NEW
Sep 6, 2026
10°C or below
$142 Vol.
<1%
11°C
$200 Vol.
<1%
12°C
$87 Vol.
1%
13°C
$514 Vol.
3%
14°C
$764 Vol.
20%
15°C
$2,315 Vol.
64%
16°C
$439 Vol.
10%
17°C
$184 Vol.
3%
18°C
$28 Vol.
1%
19°C
$211 Vol.
<1%
20°C or higher
$350 Vol.
<1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 6 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=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 numerical weather prediction consensus from models including ECMWF and GFS, aligned with Finnish Meteorological Institute guidance, positions the highest temperature in Helsinki on September 6 near 15°C as the leading outcome. Northwesterly flow is expected to moderate conditions following milder September 5 readings, keeping daytime maxima below the long-term average high of 17.1°C for the date. Ensemble spreads show limited upside risk above 16°C while supporting a floor near 14°C, consistent with the market-implied probabilities of 63.5% for 15°C and 20% for 14°C. Short-range forecast uncertainty remains low given proximity to the event, though afternoon observations from Helsinki-Vantaa will determine final resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 6 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=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 highest 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 4, 2026, 12:58 AM ET
Volume
$5,235End Date
Sep 6, 2026Market Opened
Sep 4, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 6 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=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 numerical weather prediction consensus from models including ECMWF and GFS, aligned with Finnish Meteorological Institute guidance, positions the highest temperature in Helsinki on September 6 near 15°C as the leading outcome. Northwesterly flow is expected to moderate conditions following milder September 5 readings, keeping daytime maxima below the long-term average high of 17.1°C for the date. Ensemble spreads show limited upside risk above 16°C while supporting a floor near 14°C, consistent with the market-implied probabilities of 63.5% for 15°C and 20% for 14°C. Short-range forecast uncertainty remains low given proximity to the event, though afternoon observations from Helsinki-Vantaa will determine final resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 6 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=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 highest 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
$5,235End Date
Sep 6, 2026Market Opened
Sep 4, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent numerical weather prediction consensus from models including ECMWF and GFS, aligned with Finnish Meteorological Institute guidance, positions the highest temperature in Helsinki on September 6 near 15°C as the leading outcome. Northwesterly flow is expected to moderate conditions following milder September 5 readings, keeping daytime maxima below the long-term average high of 17.1°C for the date. Ensemble spreads show limited upside risk above 16°C while supporting a floor near 14°C, consistent with the market-implied probabilities of 63.5% for 15°C and 20% for 14°C. Short-range forecast uncertainty remains low given proximity to the event, though afternoon observations from Helsinki-Vantaa will determine final resolution.
Experimental AI-generated summary referencing Polymarket data. This is not trading advice and plays no role in how this market resolves. · Updated
Beware of external links.
Beware of external links.
Frequently Asked Questions