Trader consensus centers on 18°C or 17°C as Helsinki’s highest temperature on September 8, reflecting tight forecast uncertainty two days out. Finnish Meteorological Institute guidance and ensemble models show daytime maxima near seasonal norms of 16–19°C under variable high-pressure influence, with Atlantic fronts and cloud cover as primary variables that could suppress or allow brief warming. Minor model spread on boundary-layer mixing and urban heat retention explains the narrow spread between the top two outcomes. Updated short-range runs and official observations on the day will determine 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 8?
Highest temperature in Helsinki on September 8?
18°C 45%
17°C 37%
19°C 11%
16°C 6%
NEW
NEW
Sep 8, 2026
10°C or below
<1%
11°C
<1%
12°C
<1%
13°C
3%
14°C
3%
15°C
3%
16°C
6%
17°C
37%
18°C
45%
19°C
11%
20°C or higher
3%
18°C 45%
17°C 37%
19°C 11%
16°C 6%
NEW
NEW
Sep 8, 2026
10°C or below
$235 Vol.
<1%
11°C
$235 Vol.
<1%
12°C
$235 Vol.
<1%
13°C
$0 Vol.
3%
14°C
$0 Vol.
3%
15°C
$82 Vol.
3%
16°C
$32 Vol.
6%
17°C
$606 Vol.
37%
18°C
$236 Vol.
45%
19°C
$68 Vol.
11%
20°C or higher
$68 Vol.
3%
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 8 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.Trader consensus centers on 18°C or 17°C as Helsinki’s highest temperature on September 8, reflecting tight forecast uncertainty two days out. Finnish Meteorological Institute guidance and ensemble models show daytime maxima near seasonal norms of 16–19°C under variable high-pressure influence, with Atlantic fronts and cloud cover as primary variables that could suppress or allow brief warming. Minor model spread on boundary-layer mixing and urban heat retention explains the narrow spread between the top two outcomes. Updated short-range runs and official observations on the day will determine 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 8 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 6, 2026, 12:58 AM ET
Volume
$1,797End Date
Sep 8, 2026Market Opened
Sep 6, 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 8 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.Trader consensus centers on 18°C or 17°C as Helsinki’s highest temperature on September 8, reflecting tight forecast uncertainty two days out. Finnish Meteorological Institute guidance and ensemble models show daytime maxima near seasonal norms of 16–19°C under variable high-pressure influence, with Atlantic fronts and cloud cover as primary variables that could suppress or allow brief warming. Minor model spread on boundary-layer mixing and urban heat retention explains the narrow spread between the top two outcomes. Updated short-range runs and official observations on the day will determine 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 8 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
$1,797End Date
Sep 8, 2026Market Opened
Sep 6, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Trader consensus centers on 18°C or 17°C as Helsinki’s highest temperature on September 8, reflecting tight forecast uncertainty two days out. Finnish Meteorological Institute guidance and ensemble models show daytime maxima near seasonal norms of 16–19°C under variable high-pressure influence, with Atlantic fronts and cloud cover as primary variables that could suppress or allow brief warming. Minor model spread on boundary-layer mixing and urban heat retention explains the narrow spread between the top two outcomes. Updated short-range runs and official observations on the day will determine 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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