Recent forecast model runs from agencies including the Finnish Meteorological Institute and ECMWF indicate a mild late-summer pattern over southern Finland, with a weak frontal system bringing light showers and moderate southwesterly flow that limits daytime heating. This setup supports maximum temperatures clustering around 20–22 °C on August 16, aligning with the market’s near-even split between those two outcomes. Sea-surface temperatures in the Gulf of Finland remain near seasonal norms, providing modest moisture and moderating extremes, while ensemble spreads show limited potential for either stronger high pressure (favoring 23 °C+) or increased cloud cover (capping at 19–20 °C). Updated model guidance expected within 24 hours will narrow the remaining uncertainty ahead of market resolution.
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 16?
Highest temperature in Helsinki on August 16?
22°C 36%
21°C 30%
23°C 20%
20°C 9%
NEW
NEW
Aug 16, 2026
16°C or below
<1%
17°C
1%
18°C
1%
19°C
2%
20°C
9%
21°C
30%
22°C
36%
23°C
20%
24°C
7%
25°C
3%
26°C or higher
<1%
22°C 36%
21°C 30%
23°C 20%
20°C 9%
NEW
NEW
Aug 16, 2026
16°C or below
$112 Vol.
<1%
17°C
$97 Vol.
1%
18°C
$257 Vol.
1%
19°C
$192 Vol.
2%
20°C
$36 Vol.
9%
21°C
$90 Vol.
30%
22°C
$76 Vol.
36%
23°C
$47 Vol.
20%
24°C
$161 Vol.
7%
25°C
$255 Vol.
3%
26°C or higher
$103 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 16 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.Recent forecast model runs from agencies including the Finnish Meteorological Institute and ECMWF indicate a mild late-summer pattern over southern Finland, with a weak frontal system bringing light showers and moderate southwesterly flow that limits daytime heating. This setup supports maximum temperatures clustering around 20–22 °C on August 16, aligning with the market’s near-even split between those two outcomes. Sea-surface temperatures in the Gulf of Finland remain near seasonal norms, providing modest moisture and moderating extremes, while ensemble spreads show limited potential for either stronger high pressure (favoring 23 °C+) or increased cloud cover (capping at 19–20 °C). Updated model guidance expected within 24 hours will narrow the remaining uncertainty ahead of market resolution.
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 16 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 16 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 14, 2026, 12:57 AM ET
Volume
$1,424End Date
Aug 16, 2026Market Opened
Aug 14, 2026, 12:57 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 16 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.Recent forecast model runs from agencies including the Finnish Meteorological Institute and ECMWF indicate a mild late-summer pattern over southern Finland, with a weak frontal system bringing light showers and moderate southwesterly flow that limits daytime heating. This setup supports maximum temperatures clustering around 20–22 °C on August 16, aligning with the market’s near-even split between those two outcomes. Sea-surface temperatures in the Gulf of Finland remain near seasonal norms, providing modest moisture and moderating extremes, while ensemble spreads show limited potential for either stronger high pressure (favoring 23 °C+) or increased cloud cover (capping at 19–20 °C). Updated model guidance expected within 24 hours will narrow the remaining uncertainty ahead of market resolution.
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 16 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 16 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
$1,424End Date
Aug 16, 2026Market Opened
Aug 14, 2026, 12:57 AM ETResolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Recent forecast model runs from agencies including the Finnish Meteorological Institute and ECMWF indicate a mild late-summer pattern over southern Finland, with a weak frontal system bringing light showers and moderate southwesterly flow that limits daytime heating. This setup supports maximum temperatures clustering around 20–22 °C on August 16, aligning with the market’s near-even split between those two outcomes. Sea-surface temperatures in the Gulf of Finland remain near seasonal norms, providing modest moisture and moderating extremes, while ensemble spreads show limited potential for either stronger high pressure (favoring 23 °C+) or increased cloud cover (capping at 19–20 °C). Updated model guidance expected within 24 hours will narrow the remaining uncertainty ahead of market resolution.
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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