Recent forecast model consensus points to a high-pressure system and northerly flow delivering mostly clear to partly cloudy skies over Helsinki on September 22, with afternoon highs centered near 14–16°C. This setup follows a period of southwesterly winds and showers earlier in the week, allowing radiational cooling overnight while limiting daytime warming. Ensemble guidance shows tight clustering around these values, consistent with climatological September norms of roughly 14–15°C highs and supporting the market’s emphasis on 15°C as the leading outcome. Minor model spread in boundary-layer mixing and cloud cover keeps secondary probabilities on adjacent bins, with limited upside risk for warmer readings absent a stronger southerly shift. Updated runs from agencies such as the Finnish Meteorological Institute will refine resolution criteria in the final 48 hours.
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 22?
Highest temperature in Helsinki on September 22?
15°C 49%
16°C 30%
14°C 14%
13°C 7%
NEW
NEW
Sep 22, 2026
9°C or below
1%
10°C
1%
11°C
4%
12°C
6%
13°C
7%
14°C
14%
15°C
49%
16°C
30%
17°C
7%
18°C
6%
19°C or higher
5%
15°C 49%
16°C 30%
14°C 14%
13°C 7%
NEW
NEW
Sep 22, 2026
9°C or below
$6 Vol.
1%
10°C
$6 Vol.
1%
11°C
$0 Vol.
4%
12°C
$0 Vol.
6%
13°C
$0 Vol.
7%
14°C
$0 Vol.
14%
15°C
$41 Vol.
49%
16°C
$0 Vol.
30%
17°C
$0 Vol.
7%
18°C
$0 Vol.
6%
19°C or higher
$0 Vol.
5%
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 22 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 forecast model consensus points to a high-pressure system and northerly flow delivering mostly clear to partly cloudy skies over Helsinki on September 22, with afternoon highs centered near 14–16°C. This setup follows a period of southwesterly winds and showers earlier in the week, allowing radiational cooling overnight while limiting daytime warming. Ensemble guidance shows tight clustering around these values, consistent with climatological September norms of roughly 14–15°C highs and supporting the market’s emphasis on 15°C as the leading outcome. Minor model spread in boundary-layer mixing and cloud cover keeps secondary probabilities on adjacent bins, with limited upside risk for warmer readings absent a stronger southerly shift. Updated runs from agencies such as the Finnish Meteorological Institute will refine resolution criteria in the final 48 hours.
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 22 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 20, 2026, 12:58 AM ET
Volume
$53End Date
Sep 22, 2026Market Opened
Sep 20, 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 22 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 forecast model consensus points to a high-pressure system and northerly flow delivering mostly clear to partly cloudy skies over Helsinki on September 22, with afternoon highs centered near 14–16°C. This setup follows a period of southwesterly winds and showers earlier in the week, allowing radiational cooling overnight while limiting daytime warming. Ensemble guidance shows tight clustering around these values, consistent with climatological September norms of roughly 14–15°C highs and supporting the market’s emphasis on 15°C as the leading outcome. Minor model spread in boundary-layer mixing and cloud cover keeps secondary probabilities on adjacent bins, with limited upside risk for warmer readings absent a stronger southerly shift. Updated runs from agencies such as the Finnish Meteorological Institute will refine resolution criteria in the final 48 hours.
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 22 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
$53End Date
Sep 22, 2026Market Opened
Sep 20, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent forecast model consensus points to a high-pressure system and northerly flow delivering mostly clear to partly cloudy skies over Helsinki on September 22, with afternoon highs centered near 14–16°C. This setup follows a period of southwesterly winds and showers earlier in the week, allowing radiational cooling overnight while limiting daytime warming. Ensemble guidance shows tight clustering around these values, consistent with climatological September norms of roughly 14–15°C highs and supporting the market’s emphasis on 15°C as the leading outcome. Minor model spread in boundary-layer mixing and cloud cover keeps secondary probabilities on adjacent bins, with limited upside risk for warmer readings absent a stronger southerly shift. Updated runs from agencies such as the Finnish Meteorological Institute will refine resolution criteria in the final 48 hours.
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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