Trader consensus has converged on an 18°C high for Helsinki on September 5, reflecting verified observations from regional monitoring networks that recorded a daytime peak near 18°C under partly cloudy conditions with light northwesterly flow. This aligns closely with climatological norms for early September, when average highs hover around 17°C, and short-term model runs showed minimal deviation from that baseline. Near-surface temperatures stabilized after midday without significant warm advection or solar heating anomalies to push readings higher. Only unexpected late-day measurement revisions or station-specific microclimate effects could alter the outcome, though current data indicate high confidence in the 18°C threshold.
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 5?
Highest temperature in Helsinki on September 5?
18°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$30,423 Vol.
$30,423 Vol.
Sep 5, 2026
13°C or below
No
14°C
No
15°C
No
16°C
No
17°C
No
18°C
Yes
19°C
No
20°C
No
21°C
No
22°C
No
23°C or higher
No
18°C 100.0%
13°C or below <1%
14°C <1%
15°C <1%
$30,423 Vol.
$30,423 Vol.
Sep 5, 2026
13°C or below
$305 Vol.
No
14°C
$229 Vol.
No
15°C
$259 Vol.
No
16°C
$7,084 Vol.
No
17°C
$8,803 Vol.
No
18°C
$7,321 Vol.
Yes
19°C
$4,049 Vol.
No
20°C
$1,012 Vol.
No
21°C
$579 Vol.
No
22°C
$631 Vol.
No
23°C or higher
$151 Vol.
No
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 5 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.Trader consensus has converged on an 18°C high for Helsinki on September 5, reflecting verified observations from regional monitoring networks that recorded a daytime peak near 18°C under partly cloudy conditions with light northwesterly flow. This aligns closely with climatological norms for early September, when average highs hover around 17°C, and short-term model runs showed minimal deviation from that baseline. Near-surface temperatures stabilized after midday without significant warm advection or solar heating anomalies to push readings higher. Only unexpected late-day measurement revisions or station-specific microclimate effects could alter the outcome, though current data indicate high confidence in the 18°C threshold.
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 5 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 3, 2026, 12:58 AM ET
Volume
$30,423End Date
Sep 5, 2026Market Opened
Sep 3, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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 5 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.Trader consensus has converged on an 18°C high for Helsinki on September 5, reflecting verified observations from regional monitoring networks that recorded a daytime peak near 18°C under partly cloudy conditions with light northwesterly flow. This aligns closely with climatological norms for early September, when average highs hover around 17°C, and short-term model runs showed minimal deviation from that baseline. Near-surface temperatures stabilized after midday without significant warm advection or solar heating anomalies to push readings higher. Only unexpected late-day measurement revisions or station-specific microclimate effects could alter the outcome, though current data indicate high confidence in the 18°C threshold.
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 5 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
$30,423End Date
Sep 5, 2026Market Opened
Sep 3, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Trader consensus has converged on an 18°C high for Helsinki on September 5, reflecting verified observations from regional monitoring networks that recorded a daytime peak near 18°C under partly cloudy conditions with light northwesterly flow. This aligns closely with climatological norms for early September, when average highs hover around 17°C, and short-term model runs showed minimal deviation from that baseline. Near-surface temperatures stabilized after midday without significant warm advection or solar heating anomalies to push readings higher. Only unexpected late-day measurement revisions or station-specific microclimate effects could alter the outcome, though current data indicate high confidence in the 18°C threshold.
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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