**Forecast models from the Finnish Meteorological Institute and other sources converge on a maximum temperature of 18–20°C in Helsinki on August 25, driven by stable high-pressure conditions and northerly winds that limit daytime heating.** Partly cloudy skies and light winds (around 4–5 m/s) are expected to produce peak readings near 19°C around midday to afternoon, aligning closely with the late-August climatological average of 19.1°C at the Helsinki Kaisaniemi station. Recent model runs show little day-to-day shift, with no incoming warm advection or significant cloud cover to alter the outcome. This consensus underpins the market-implied probabilities favoring 19°C (47%) and 20°C (35%), as traders weigh the narrow range typical of these synoptic conditions against minor uncertainties in boundary-layer mixing and exact cloud timing.
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 25?
Highest temperature in Helsinki on August 25?
19°C 60%
20°C 25%
18°C 14%
21°C 3%
NEW
$16,011 Vol.
NEW
$16,011 Vol.
Aug 25, 2026
13°C or below
<1%
14°C
<1%
15°C
<1%
16°C
<1%
17°C
1%
18°C
14%
19°C
60%
20°C
25%
21°C
3%
22°C
1%
23°C or higher
<1%
19°C 60%
20°C 25%
18°C 14%
21°C 3%
NEW
$16,011 Vol.
NEW
$16,011 Vol.
Aug 25, 2026
13°C or below
$119 Vol.
<1%
14°C
$89 Vol.
<1%
15°C
$844 Vol.
<1%
16°C
$418 Vol.
<1%
17°C
$1,274 Vol.
1%
18°C
$3,340 Vol.
14%
19°C
$3,840 Vol.
60%
20°C
$2,296 Vol.
25%
21°C
$2,042 Vol.
3%
22°C
$518 Vol.
1%
23°C or higher
$1,231 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 25 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
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.**Forecast models from the Finnish Meteorological Institute and other sources converge on a maximum temperature of 18–20°C in Helsinki on August 25, driven by stable high-pressure conditions and northerly winds that limit daytime heating.**
Partly cloudy skies and light winds (around 4–5 m/s) are expected to produce peak readings near 19°C around midday to afternoon, aligning closely with the late-August climatological average of 19.1°C at the Helsinki Kaisaniemi station. Recent model runs show little day-to-day shift, with no incoming warm advection or significant cloud cover to alter the outcome. This consensus underpins the market-implied probabilities favoring 19°C (47%) and 20°C (35%), as traders weigh the narrow range typical of these synoptic conditions against minor uncertainties in boundary-layer mixing and exact cloud timing.
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 25 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
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
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 23, 2026, 12:58 AM ET
Volume
$16,011End Date
Aug 25, 2026Market Opened
Aug 23, 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 25 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
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.**Forecast models from the Finnish Meteorological Institute and other sources converge on a maximum temperature of 18–20°C in Helsinki on August 25, driven by stable high-pressure conditions and northerly winds that limit daytime heating.**
Partly cloudy skies and light winds (around 4–5 m/s) are expected to produce peak readings near 19°C around midday to afternoon, aligning closely with the late-August climatological average of 19.1°C at the Helsinki Kaisaniemi station. Recent model runs show little day-to-day shift, with no incoming warm advection or significant cloud cover to alter the outcome. This consensus underpins the market-implied probabilities favoring 19°C (47%) and 20°C (35%), as traders weigh the narrow range typical of these synoptic conditions against minor uncertainties in boundary-layer mixing and exact cloud timing.
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 25 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
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
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
$16,011End Date
Aug 25, 2026Market Opened
Aug 23, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...**Forecast models from the Finnish Meteorological Institute and other sources converge on a maximum temperature of 18–20°C in Helsinki on August 25, driven by stable high-pressure conditions and northerly winds that limit daytime heating.** Partly cloudy skies and light winds (around 4–5 m/s) are expected to produce peak readings near 19°C around midday to afternoon, aligning closely with the late-August climatological average of 19.1°C at the Helsinki Kaisaniemi station. Recent model runs show little day-to-day shift, with no incoming warm advection or significant cloud cover to alter the outcome. This consensus underpins the market-implied probabilities favoring 19°C (47%) and 20°C (35%), as traders weigh the narrow range typical of these synoptic conditions against minor uncertainties in boundary-layer mixing and exact cloud timing.
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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