Current forecasts from the Finnish Meteorological Institute, Foreca, Yr.no, and Met Office converge on a daytime maximum near 17°C for Helsinki on September 9, with southwesterly flow, widespread cloud cover, and 50–60% rain probability limiting solar heating. Historical September 9 averages sit at 16.6°C, while recent days have peaked at 16–17°C under similar conditions. The tight split between 17°C and 18°C implied odds reflects model spread in peak timing and any brief clearing that could add 1°C, plus uncertainty over exact wind gusts and precipitation intensity. Traders weigh these variables against the narrow range separating the two leading outcomes, with resolution hinging on official observations from Helsinki-Vantaa or Kumpula stations.
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 9?
Highest temperature in Helsinki on September 9?
17°C 41%
18°C 37%
16°C 14%
19°C 6%
NEW
NEW
Sep 9, 2026
11°C or below
<1%
12°C
<1%
13°C
1%
14°C
2%
15°C
3%
16°C
14%
17°C
41%
18°C
37%
19°C
6%
20°C
2%
21°C or higher
1%
17°C 41%
18°C 37%
16°C 14%
19°C 6%
NEW
NEW
Sep 9, 2026
11°C or below
$271 Vol.
<1%
12°C
$271 Vol.
<1%
13°C
$0 Vol.
1%
14°C
$145 Vol.
2%
15°C
$138 Vol.
3%
16°C
$820 Vol.
14%
17°C
$538 Vol.
41%
18°C
$452 Vol.
37%
19°C
$456 Vol.
6%
20°C
$186 Vol.
2%
21°C or higher
$132 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 9 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.Current forecasts from the Finnish Meteorological Institute, Foreca, Yr.no, and Met Office converge on a daytime maximum near 17°C for Helsinki on September 9, with southwesterly flow, widespread cloud cover, and 50–60% rain probability limiting solar heating. Historical September 9 averages sit at 16.6°C, while recent days have peaked at 16–17°C under similar conditions. The tight split between 17°C and 18°C implied odds reflects model spread in peak timing and any brief clearing that could add 1°C, plus uncertainty over exact wind gusts and precipitation intensity. Traders weigh these variables against the narrow range separating the two leading outcomes, with resolution hinging on official observations from Helsinki-Vantaa or Kumpula stations.
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 9 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 7, 2026, 12:58 AM ET
Volume
$3,409End Date
Sep 9, 2026Market Opened
Sep 7, 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 9 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.Current forecasts from the Finnish Meteorological Institute, Foreca, Yr.no, and Met Office converge on a daytime maximum near 17°C for Helsinki on September 9, with southwesterly flow, widespread cloud cover, and 50–60% rain probability limiting solar heating. Historical September 9 averages sit at 16.6°C, while recent days have peaked at 16–17°C under similar conditions. The tight split between 17°C and 18°C implied odds reflects model spread in peak timing and any brief clearing that could add 1°C, plus uncertainty over exact wind gusts and precipitation intensity. Traders weigh these variables against the narrow range separating the two leading outcomes, with resolution hinging on official observations from Helsinki-Vantaa or Kumpula stations.
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 9 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
$3,409End Date
Sep 9, 2026Market Opened
Sep 7, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Current forecasts from the Finnish Meteorological Institute, Foreca, Yr.no, and Met Office converge on a daytime maximum near 17°C for Helsinki on September 9, with southwesterly flow, widespread cloud cover, and 50–60% rain probability limiting solar heating. Historical September 9 averages sit at 16.6°C, while recent days have peaked at 16–17°C under similar conditions. The tight split between 17°C and 18°C implied odds reflects model spread in peak timing and any brief clearing that could add 1°C, plus uncertainty over exact wind gusts and precipitation intensity. Traders weigh these variables against the narrow range separating the two leading outcomes, with resolution hinging on official observations from Helsinki-Vantaa or Kumpula stations.
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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