Official forecasts from the Finnish Meteorological Institute indicate a daytime high of 25°C in Helsinki on May 23 under stable southwesterly flow and mostly clear conditions, aligning with the market's near-certain consensus on that exact threshold. Multiple numerical weather prediction models show tight agreement on peak readings near this level, with minimal spread and no signals of stronger warming aloft or reduced cloud cover that could push values to 26°C or above. Historical May climatology places average highs around 15–16°C, making today's conditions an outlier driven by transient high pressure, yet still well short of records that would alter resolution. Traders appear to have rapidly incorporated the latest model runs, leaving little room for upside surprise before evening observations finalize the daily maximum.
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 May 23?
Highest temperature in Helsinki on May 23?
25°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$50,080 Vol.
$50,080 Vol.
May 23, 2026
16°C or below
No
17°C
No
18°C
No
19°C
No
20°C
No
21°C
No
22°C
No
23°C
No
24°C
No
25°C
Yes
26°C or higher
No
25°C 100.0%
16°C or below <1%
17°C <1%
18°C <1%
$50,080 Vol.
$50,080 Vol.
May 23, 2026
16°C or below
$852 Vol.
No
17°C
$2,296 Vol.
No
18°C
$1,250 Vol.
No
19°C
$3,168 Vol.
No
20°C
$7,182 Vol.
No
21°C
$2,985 Vol.
No
22°C
$3,350 Vol.
No
23°C
$4,171 Vol.
No
24°C
$3,666 Vol.
No
25°C
$10,323 Vol.
Yes
26°C or higher
$10,836 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 23 May '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 forecasts from the Finnish Meteorological Institute indicate a daytime high of 25°C in Helsinki on May 23 under stable southwesterly flow and mostly clear conditions, aligning with the market's near-certain consensus on that exact threshold. Multiple numerical weather prediction models show tight agreement on peak readings near this level, with minimal spread and no signals of stronger warming aloft or reduced cloud cover that could push values to 26°C or above. Historical May climatology places average highs around 15–16°C, making today's conditions an outlier driven by transient high pressure, yet still well short of records that would alter resolution. Traders appear to have rapidly incorporated the latest model runs, leaving little room for upside surprise before evening observations finalize the daily maximum.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 23 May '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: May 21, 2026, 6:16 AM ET
Volume
$50,080End Date
May 23, 2026Market Opened
May 21, 2026, 6:16 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 23 May '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 forecasts from the Finnish Meteorological Institute indicate a daytime high of 25°C in Helsinki on May 23 under stable southwesterly flow and mostly clear conditions, aligning with the market's near-certain consensus on that exact threshold. Multiple numerical weather prediction models show tight agreement on peak readings near this level, with minimal spread and no signals of stronger warming aloft or reduced cloud cover that could push values to 26°C or above. Historical May climatology places average highs around 15–16°C, making today's conditions an outlier driven by transient high pressure, yet still well short of records that would alter resolution. Traders appear to have rapidly incorporated the latest model runs, leaving little room for upside surprise before evening observations finalize the daily maximum.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 23 May '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
$50,080End Date
May 23, 2026Market Opened
May 21, 2026, 6:16 AM ETResolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Outcome proposed: No
No dispute
Final outcome: No
Official forecasts from the Finnish Meteorological Institute indicate a daytime high of 25°C in Helsinki on May 23 under stable southwesterly flow and mostly clear conditions, aligning with the market's near-certain consensus on that exact threshold. Multiple numerical weather prediction models show tight agreement on peak readings near this level, with minimal spread and no signals of stronger warming aloft or reduced cloud cover that could push values to 26°C or above. Historical May climatology places average highs around 15–16°C, making today's conditions an outlier driven by transient high pressure, yet still well short of records that would alter resolution. Traders appear to have rapidly incorporated the latest model runs, leaving little room for upside surprise before evening observations finalize the daily maximum.
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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