Latest numerical weather prediction models, including those from the Finnish Meteorological Institute and global ensembles, indicate a maximum temperature of 17–18°C in Helsinki on September 4, driven by mild southerly flow, extensive low- to mid-level cloud cover, and light winds that limit daytime heating. These conditions align closely with early-September climatology, where average highs near 17.5°C reflect typical Atlantic moderation without strong high-pressure ridging or clear skies for greater warming. Trader consensus at 46% for 18°C and 26.5% for 17°C reflects this narrow forecast spread, with minor upside risk to 19°C if breaks in cloud allow extra insolation before resolution. Updated model runs overnight will refine any final adjustments.
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 4?
Highest temperature in Helsinki on September 4?
18°C 47%
17°C 24%
19°C 20%
16°C 3%
NEW
NEW
Sep 4, 2026
11°C or below
<1%
12°C
<1%
13°C
1%
14°C
1%
15°C
2%
16°C
3%
17°C
24%
18°C
47%
19°C
20%
20°C
2%
21°C or higher
1%
18°C 47%
17°C 24%
19°C 20%
16°C 3%
NEW
NEW
Sep 4, 2026
11°C or below
$140 Vol.
<1%
12°C
$125 Vol.
<1%
13°C
$277 Vol.
1%
14°C
$146 Vol.
1%
15°C
$209 Vol.
2%
16°C
$564 Vol.
3%
17°C
$581 Vol.
24%
18°C
$1,101 Vol.
47%
19°C
$761 Vol.
20%
20°C
$252 Vol.
2%
21°C or higher
$187 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 4 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.Latest numerical weather prediction models, including those from the Finnish Meteorological Institute and global ensembles, indicate a maximum temperature of 17–18°C in Helsinki on September 4, driven by mild southerly flow, extensive low- to mid-level cloud cover, and light winds that limit daytime heating. These conditions align closely with early-September climatology, where average highs near 17.5°C reflect typical Atlantic moderation without strong high-pressure ridging or clear skies for greater warming. Trader consensus at 46% for 18°C and 26.5% for 17°C reflects this narrow forecast spread, with minor upside risk to 19°C if breaks in cloud allow extra insolation before resolution. Updated model runs overnight will refine any final adjustments.
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 4 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 2, 2026, 12:58 AM ET
Volume
$4,344End Date
Sep 4, 2026Market Opened
Sep 2, 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 4 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.Latest numerical weather prediction models, including those from the Finnish Meteorological Institute and global ensembles, indicate a maximum temperature of 17–18°C in Helsinki on September 4, driven by mild southerly flow, extensive low- to mid-level cloud cover, and light winds that limit daytime heating. These conditions align closely with early-September climatology, where average highs near 17.5°C reflect typical Atlantic moderation without strong high-pressure ridging or clear skies for greater warming. Trader consensus at 46% for 18°C and 26.5% for 17°C reflects this narrow forecast spread, with minor upside risk to 19°C if breaks in cloud allow extra insolation before resolution. Updated model runs overnight will refine any final adjustments.
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 4 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
$4,344End Date
Sep 4, 2026Market Opened
Sep 2, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Latest numerical weather prediction models, including those from the Finnish Meteorological Institute and global ensembles, indicate a maximum temperature of 17–18°C in Helsinki on September 4, driven by mild southerly flow, extensive low- to mid-level cloud cover, and light winds that limit daytime heating. These conditions align closely with early-September climatology, where average highs near 17.5°C reflect typical Atlantic moderation without strong high-pressure ridging or clear skies for greater warming. Trader consensus at 46% for 18°C and 26.5% for 17°C reflects this narrow forecast spread, with minor upside risk to 19°C if breaks in cloud allow extra insolation before resolution. Updated model runs overnight will refine any final adjustments.
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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