Official observations from the Helsinki-Vantaa Airport weather station, the authoritative source for this market's resolution via the Finnish Meteorological Institute (FMI), confirm the highest temperature on April 25 reached 9°C, driving trader consensus to a 100% implied probability on that outcome amid thin residual liquidity. Persistent northerly winds at 10 m/s advected continental polar air, suppressing daytime highs below late-April climatological norms of 8-11°C, with FMI reports noting peaks around 3-5°C under partly cloudy skies. While measurement revisions from sensor calibration or data validation are theoretically possible though exceedingly rare post-initial release, no discrepancies have emerged in preliminary FMI bulletins.
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 April 25?
Highest temperature in Helsinki on April 25?
9°C 100.0%
3°C or below <1%
4°C <1%
5°C <1%
$78,200 Vol.
$78,200 Vol.
Apr 25, 2026
3°C or below
No
4°C
No
5°C
No
6°C
No
7°C
No
8°C
No
9°C
Yes
10°C
No
11°C
No
12°C
No
13°C or higher
No
9°C 100.0%
3°C or below <1%
4°C <1%
5°C <1%
$78,200 Vol.
$78,200 Vol.
Apr 25, 2026
3°C or below
$1,458 Vol.
No
4°C
$2,389 Vol.
No
5°C
$3,762 Vol.
No
6°C
$3,998 Vol.
No
7°C
$7,318 Vol.
No
8°C
$5,714 Vol.
No
9°C
$20,000 Vol.
Yes
10°C
$11,250 Vol.
No
11°C
$7,850 Vol.
No
12°C
$7,643 Vol.
No
13°C or higher
$6,817 Vol.
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 25 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Official observations from the Helsinki-Vantaa Airport weather station, the authoritative source for this market's resolution via the Finnish Meteorological Institute (FMI), confirm the highest temperature on April 25 reached 9°C, driving trader consensus to a 100% implied probability on that outcome amid thin residual liquidity. Persistent northerly winds at 10 m/s advected continental polar air, suppressing daytime highs below late-April climatological norms of 8-11°C, with FMI reports noting peaks around 3-5°C under partly cloudy skies. While measurement revisions from sensor calibration or data validation are theoretically possible though exceedingly rare post-initial release, no discrepancies have emerged in preliminary FMI bulletins.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 25 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Market Opened: Apr 23, 2026, 1:03 AM ET
Volume
$78,200End Date
Apr 25, 2026Market Opened
Apr 23, 2026, 1:03 AM ETResolution 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 25 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.Official observations from the Helsinki-Vantaa Airport weather station, the authoritative source for this market's resolution via the Finnish Meteorological Institute (FMI), confirm the highest temperature on April 25 reached 9°C, driving trader consensus to a 100% implied probability on that outcome amid thin residual liquidity. Persistent northerly winds at 10 m/s advected continental polar air, suppressing daytime highs below late-April climatological norms of 8-11°C, with FMI reports noting peaks around 3-5°C under partly cloudy skies. While measurement revisions from sensor calibration or data validation are theoretically possible though exceedingly rare post-initial release, no discrepancies have emerged in preliminary FMI bulletins.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 25 Apr '26.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day by the Forecast for the Helsinki Vantaa Airport Station once information is finalized, 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 to "Yes" until all data for this date has been finalized.
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.
Any revisions to temperatures recorded after data is finalized for this market's timeframe will not be considered for this market's resolution.
Volume
$78,200End Date
Apr 25, 2026Market Opened
Apr 23, 2026, 1:03 AM ETResolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official observations from the Helsinki-Vantaa Airport weather station, the authoritative source for this market's resolution via the Finnish Meteorological Institute (FMI), confirm the highest temperature on April 25 reached 9°C, driving trader consensus to a 100% implied probability on that outcome amid thin residual liquidity. Persistent northerly winds at 10 m/s advected continental polar air, suppressing daytime highs below late-April climatological norms of 8-11°C, with FMI reports noting peaks around 3-5°C under partly cloudy skies. While measurement revisions from sensor calibration or data validation are theoretically possible though exceedingly rare post-initial release, no discrepancies have emerged in preliminary FMI bulletins.
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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