Recent forecasts from the Finnish Meteorological Institute and ECMWF ensembles indicate a peak temperature of 21°C in Helsinki on August 16 under persistent southwesterly flow and partial cloud cover, which moderates Baltic maritime air and limits afternoon heating to seasonal norms near 19–21°C. Official observations through the afternoon align with this range, reinforcing trader consensus that 21°C represents the highest reading for the day. Minor model variations or brief clearer skies could allow a brief spike toward 22°C before official verification closes the window, though current conditions make such shifts improbable.
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?
21°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$39,231 Vol.
$39,231 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C or higher
No
21°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$39,231 Vol.
$39,231 Vol.
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
Yes
22°C
No
23°C
No
24°C
No
25°C
No
26°C or higher
No
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
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
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.
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Recent forecasts from the Finnish Meteorological Institute and ECMWF ensembles indicate a peak temperature of 21°C in Helsinki on August 16 under persistent southwesterly flow and partial cloud cover, which moderates Baltic maritime air and limits afternoon heating to seasonal norms near 19–21°C. Official observations through the afternoon align with this range, reinforcing trader consensus that 21°C represents the highest reading for the day. Minor model variations or brief clearer skies could allow a brief spike toward 22°C before official verification closes the window, though current conditions make such shifts improbable.
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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