**Forecast consensus from agencies including the Finnish Meteorological Institute, Met Office, and BBC Weather points to a daytime maximum near 20°C in Helsinki on August 13, 2026, under partly cloudy skies and moderate northwesterly flow that limits strong heating.** Mid-August climatology in southern Finland shows average highs of 19–20°C, with recent model runs indicating limited potential for either significant warming or cooling. This positions the 20°C outcome as the market leader at 41.5% implied probability, followed by 21°C and 19°C bins that capture plausible model spread and minor variations in cloud cover or wind. Short-range predictability remains high two days ahead, though afternoon clearing or localized showers could still shift the exact peak by 1°C.
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 13?
Highest temperature in Helsinki on August 13?
20°C 42%
21°C 29%
19°C 22%
18°C 6%
NEW
NEW
Aug 13, 2026
15°C or below
<1%
16°C
1%
17°C
2%
18°C
6%
19°C
22%
20°C
42%
21°C
29%
22°C
5%
23°C
1%
24°C
1%
25°C or higher
<1%
20°C 42%
21°C 29%
19°C 22%
18°C 6%
NEW
NEW
Aug 13, 2026
15°C or below
$17 Vol.
<1%
16°C
$203 Vol.
1%
17°C
$658 Vol.
2%
18°C
$450 Vol.
6%
19°C
$635 Vol.
22%
20°C
$167 Vol.
42%
21°C
$232 Vol.
29%
22°C
$403 Vol.
5%
23°C
$145 Vol.
1%
24°C
$84 Vol.
1%
25°C or higher
$83 Vol.
<1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 consensus from agencies including the Finnish Meteorological Institute, Met Office, and BBC Weather points to a daytime maximum near 20°C in Helsinki on August 13, 2026, under partly cloudy skies and moderate northwesterly flow that limits strong heating.** Mid-August climatology in southern Finland shows average highs of 19–20°C, with recent model runs indicating limited potential for either significant warming or cooling. This positions the 20°C outcome as the market leader at 41.5% implied probability, followed by 21°C and 19°C bins that capture plausible model spread and minor variations in cloud cover or wind. Short-range predictability remains high two days ahead, though afternoon clearing or localized showers could still shift the exact peak by 1°C.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 11, 2026, 1:04 AM ET
Volume
$3,077End Date
Aug 13, 2026Market Opened
Aug 11, 2026, 1:04 AM ETResolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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 consensus from agencies including the Finnish Meteorological Institute, Met Office, and BBC Weather points to a daytime maximum near 20°C in Helsinki on August 13, 2026, under partly cloudy skies and moderate northwesterly flow that limits strong heating.** Mid-August climatology in southern Finland shows average highs of 19–20°C, with recent model runs indicating limited potential for either significant warming or cooling. This positions the 20°C outcome as the market leader at 41.5% implied probability, followed by 21°C and 19°C bins that capture plausible model spread and minor variations in cloud cover or wind. Short-range predictability remains high two days ahead, though afternoon clearing or localized showers could still shift the exact peak by 1°C.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 13 Aug '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, available here: https://www.wunderground.com/history/daily/fi/vantaa/EFHK.
To toggle between Fahrenheit and Celsius, click the gear icon next to the search bar and switch the Temperature setting between °F and °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
$3,077End Date
Aug 13, 2026Market Opened
Aug 11, 2026, 1:04 AM ETResolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...**Forecast consensus from agencies including the Finnish Meteorological Institute, Met Office, and BBC Weather points to a daytime maximum near 20°C in Helsinki on August 13, 2026, under partly cloudy skies and moderate northwesterly flow that limits strong heating.** Mid-August climatology in southern Finland shows average highs of 19–20°C, with recent model runs indicating limited potential for either significant warming or cooling. This positions the 20°C outcome as the market leader at 41.5% implied probability, followed by 21°C and 19°C bins that capture plausible model spread and minor variations in cloud cover or wind. Short-range predictability remains high two days ahead, though afternoon clearing or localized showers could still shift the exact peak by 1°C.
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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