Recent model consensus from sources including the Finnish Meteorological Institute and ECMWF points to a southerly flow ahead of an approaching low-pressure system, positioning Helsinki’s September 16 high near 16 °C—the market’s strongest implied probability at 50 %. Mild maritime air and increasing cloud cover are expected to limit daytime warming close to the long-term average of 15.3 °C, while 15 °C and 17 °C outcomes (24.5 % and 13.5 %) remain plausible depending on exact cloud timing and wind gusts. Forecasters note moderate rain chances that could further cap peaks, with final resolution hinging on official observations from Helsinki-Vantaa or Kaisaniemi stations. Updated model runs over the next 48 hours will be the key near-term catalyst for any shift in trader positioning.
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 16?
Highest temperature in Helsinki on September 16?
16°C 51%
15°C 25%
17°C 15%
18°C 7%
NEW
NEW
Sep 16, 2026
11°C or below
2%
12°C
3%
13°C
5%
14°C
5%
15°C
25%
16°C
51%
17°C
15%
18°C
7%
19°C
2%
20°C
2%
21°C or higher
2%
16°C 51%
15°C 25%
17°C 15%
18°C 7%
NEW
NEW
Sep 16, 2026
11°C or below
$0 Vol.
2%
12°C
$0 Vol.
3%
13°C
$0 Vol.
5%
14°C
$0 Vol.
5%
15°C
$0 Vol.
25%
16°C
$99 Vol.
51%
17°C
$0 Vol.
15%
18°C
$9 Vol.
7%
19°C
$0 Vol.
2%
20°C
$0 Vol.
2%
21°C or higher
$0 Vol.
2%
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 16 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 model consensus from sources including the Finnish Meteorological Institute and ECMWF points to a southerly flow ahead of an approaching low-pressure system, positioning Helsinki’s September 16 high near 16 °C—the market’s strongest implied probability at 50 %. Mild maritime air and increasing cloud cover are expected to limit daytime warming close to the long-term average of 15.3 °C, while 15 °C and 17 °C outcomes (24.5 % and 13.5 %) remain plausible depending on exact cloud timing and wind gusts. Forecasters note moderate rain chances that could further cap peaks, with final resolution hinging on official observations from Helsinki-Vantaa or Kaisaniemi stations. Updated model runs over the next 48 hours will be the key near-term catalyst for any shift in trader positioning.
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 16 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 14, 2026, 12:58 AM ET
Volume
$108End Date
Sep 16, 2026Market Opened
Sep 14, 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 16 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 model consensus from sources including the Finnish Meteorological Institute and ECMWF points to a southerly flow ahead of an approaching low-pressure system, positioning Helsinki’s September 16 high near 16 °C—the market’s strongest implied probability at 50 %. Mild maritime air and increasing cloud cover are expected to limit daytime warming close to the long-term average of 15.3 °C, while 15 °C and 17 °C outcomes (24.5 % and 13.5 %) remain plausible depending on exact cloud timing and wind gusts. Forecasters note moderate rain chances that could further cap peaks, with final resolution hinging on official observations from Helsinki-Vantaa or Kaisaniemi stations. Updated model runs over the next 48 hours will be the key near-term catalyst for any shift in trader positioning.
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 16 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
$108End Date
Sep 16, 2026Market Opened
Sep 14, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent model consensus from sources including the Finnish Meteorological Institute and ECMWF points to a southerly flow ahead of an approaching low-pressure system, positioning Helsinki’s September 16 high near 16 °C—the market’s strongest implied probability at 50 %. Mild maritime air and increasing cloud cover are expected to limit daytime warming close to the long-term average of 15.3 °C, while 15 °C and 17 °C outcomes (24.5 % and 13.5 %) remain plausible depending on exact cloud timing and wind gusts. Forecasters note moderate rain chances that could further cap peaks, with final resolution hinging on official observations from Helsinki-Vantaa or Kaisaniemi stations. Updated model runs over the next 48 hours will be the key near-term catalyst for any shift in trader positioning.
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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