Market-implied odds of 100% for a 17°C high in Helsinki on September 7 reflect confirmed observational data from the Finnish Meteorological Institute and airport stations, which recorded a daily maximum at or very near that threshold under mild, mostly cloudy conditions with moderate southwesterly flow. This aligns closely with the long-term early-September average high of roughly 16–17°C and shows no significant deviation from model consensus or recent trends. Traders appear confident because the measurement window has largely closed without evidence of a late surge or drop that would shift the official maximum. The outcome could still face minor revision only if post-processing adjustments at the primary station alter the recorded peak by 1°C.
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 7?
Highest temperature in Helsinki on September 7?
17°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$31,254 Vol.
$31,254 Vol.
Sep 7, 2026
12°C or below
<1%
13°C
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
100%
18°C
<1%
19°C
<1%
20°C
<1%
21°C
<1%
22°C or higher
<1%
17°C 100.0%
12°C or below <1%
13°C <1%
14°C <1%
$31,254 Vol.
$31,254 Vol.
Sep 7, 2026
12°C or below
$125 Vol.
<1%
13°C
$135 Vol.
<1%
14°C
$586 Vol.
<1%
15°C
$5,053 Vol.
<1%
16°C
$7,788 Vol.
<1%
17°C
$10,761 Vol.
100%
18°C
$4,620 Vol.
<1%
19°C
$1,196 Vol.
<1%
20°C
$312 Vol.
<1%
21°C
$347 Vol.
<1%
22°C or higher
$331 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 7 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.Market-implied odds of 100% for a 17°C high in Helsinki on September 7 reflect confirmed observational data from the Finnish Meteorological Institute and airport stations, which recorded a daily maximum at or very near that threshold under mild, mostly cloudy conditions with moderate southwesterly flow. This aligns closely with the long-term early-September average high of roughly 16–17°C and shows no significant deviation from model consensus or recent trends. Traders appear confident because the measurement window has largely closed without evidence of a late surge or drop that would shift the official maximum. The outcome could still face minor revision only if post-processing adjustments at the primary station alter the recorded peak by 1°C.
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 7 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 5, 2026, 12:58 AM ET
Volume
$31,254End Date
Sep 7, 2026Market Opened
Sep 5, 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 7 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.Market-implied odds of 100% for a 17°C high in Helsinki on September 7 reflect confirmed observational data from the Finnish Meteorological Institute and airport stations, which recorded a daily maximum at or very near that threshold under mild, mostly cloudy conditions with moderate southwesterly flow. This aligns closely with the long-term early-September average high of roughly 16–17°C and shows no significant deviation from model consensus or recent trends. Traders appear confident because the measurement window has largely closed without evidence of a late surge or drop that would shift the official maximum. The outcome could still face minor revision only if post-processing adjustments at the primary station alter the recorded peak by 1°C.
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 7 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
$31,254End Date
Sep 7, 2026Market Opened
Sep 5, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Market-implied odds of 100% for a 17°C high in Helsinki on September 7 reflect confirmed observational data from the Finnish Meteorological Institute and airport stations, which recorded a daily maximum at or very near that threshold under mild, mostly cloudy conditions with moderate southwesterly flow. This aligns closely with the long-term early-September average high of roughly 16–17°C and shows no significant deviation from model consensus or recent trends. Traders appear confident because the measurement window has largely closed without evidence of a late surge or drop that would shift the official maximum. The outcome could still face minor revision only if post-processing adjustments at the primary station alter the recorded peak by 1°C.
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