Current observational data from Helsinki meteorological stations indicate a daily maximum of 19°C on August 29, driving the 99.9% market-implied probability for that exact outcome. Late-summer conditions, including southeasterly flow and extensive cloud cover, limited daytime heating consistent with seasonal norms near 18.6°C, while short-range model runs from agencies such as the Finnish Meteorological Institute aligned closely with in-situ readings showing afternoon peaks at or just below 20°C. This skin-in-the-game consensus reflects high confidence in verified station maxima rather than forecasts. Minor adjustments remain possible if official post-processing revises the recorded high due to sensor calibration or microclimate variations at the primary site.
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 August 29?
Highest temperature in Helsinki on August 29?
19°C 99.9%
20°C <1%
14°C or below <1%
15°C <1%
$31,677 Vol.
$31,677 Vol.
Aug 29, 2026
14°C or below
<1%
15°C
<1%
16°C
<1%
17°C
<1%
18°C
<1%
19°C
100%
20°C
<1%
21°C
<1%
22°C
<1%
23°C
<1%
24°C or higher
<1%
19°C 99.9%
20°C <1%
14°C or below <1%
15°C <1%
$31,677 Vol.
$31,677 Vol.
Aug 29, 2026
14°C or below
$394 Vol.
<1%
15°C
$179 Vol.
<1%
16°C
$378 Vol.
<1%
17°C
$458 Vol.
<1%
18°C
$8,370 Vol.
<1%
19°C
$6,837 Vol.
100%
20°C
$7,808 Vol.
<1%
21°C
$4,518 Vol.
<1%
22°C
$1,575 Vol.
<1%
23°C
$506 Vol.
<1%
24°C or higher
$653 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 29 Aug '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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 observational data from Helsinki meteorological stations indicate a daily maximum of 19°C on August 29, driving the 99.9% market-implied probability for that exact outcome. Late-summer conditions, including southeasterly flow and extensive cloud cover, limited daytime heating consistent with seasonal norms near 18.6°C, while short-range model runs from agencies such as the Finnish Meteorological Institute aligned closely with in-situ readings showing afternoon peaks at or just below 20°C. This skin-in-the-game consensus reflects high confidence in verified station maxima rather than forecasts. Minor adjustments remain possible if official post-processing revises the recorded high due to sensor calibration or microclimate variations at the primary site.
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 29 Aug '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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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: Aug 27, 2026, 12:58 AM ET
Volume
$31,677End Date
Aug 29, 2026Market Opened
Aug 27, 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 29 Aug '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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 observational data from Helsinki meteorological stations indicate a daily maximum of 19°C on August 29, driving the 99.9% market-implied probability for that exact outcome. Late-summer conditions, including southeasterly flow and extensive cloud cover, limited daytime heating consistent with seasonal norms near 18.6°C, while short-range model runs from agencies such as the Finnish Meteorological Institute aligned closely with in-situ readings showing afternoon peaks at or just below 20°C. This skin-in-the-game consensus reflects high confidence in verified station maxima rather than forecasts. Minor adjustments remain possible if official post-processing revises the recorded high due to sensor calibration or microclimate variations at the primary site.
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 29 Aug '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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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 is unavailable or missing for the observation period, Weather Underground will be used as the secondary resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market can not resolve until the first data point for the following date has been published on the resolution source.
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
$31,677End Date
Aug 29, 2026Market Opened
Aug 27, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Current observational data from Helsinki meteorological stations indicate a daily maximum of 19°C on August 29, driving the 99.9% market-implied probability for that exact outcome. Late-summer conditions, including southeasterly flow and extensive cloud cover, limited daytime heating consistent with seasonal norms near 18.6°C, while short-range model runs from agencies such as the Finnish Meteorological Institute aligned closely with in-situ readings showing afternoon peaks at or just below 20°C. This skin-in-the-game consensus reflects high confidence in verified station maxima rather than forecasts. Minor adjustments remain possible if official post-processing revises the recorded high due to sensor calibration or microclimate variations at the primary site.
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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