Recent northwesterly flow has advected cooler maritime air over southern Finland, while persistent cloud cover has limited daytime insolation and kept surface heating modest. Ensemble guidance from the Finnish Meteorological Institute and ECMWF places the May 22 maximum near 14–16 °C at Helsinki-Vantaa, with the tight clustering around 15 °C and 16 °C reflecting small uncertainties in boundary-layer mixing and the exact timing of any partial clearing. Historical May climatology shows a 14–15 °C modal high, so current model consensus aligns with near-normal conditions rather than anomalous warmth or chill. Updated short-range runs and afternoon observations will be the next key inputs for traders assessing whether the peak settles at the lower or upper end of the favored range.
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 22?
Highest temperature in Helsinki on May 22?
16°C 28%
15°C 24%
17°C 20%
14°C 18%
NEW
NEW
May 22, 2026
8°C or below
1%
9°C
1%
10°C
1%
11°C
1%
12°C
4%
13°C
6%
14°C
18%
15°C
24%
16°C
28%
17°C
18%
18°C or higher
12%
16°C 28%
15°C 24%
17°C 20%
14°C 18%
NEW
NEW
May 22, 2026
8°C or below
$263 Vol.
1%
9°C
$34 Vol.
1%
10°C
$284 Vol.
1%
11°C
$122 Vol.
1%
12°C
$97 Vol.
4%
13°C
$72 Vol.
6%
14°C
$124 Vol.
18%
15°C
$190 Vol.
24%
16°C
$177 Vol.
28%
17°C
$230 Vol.
18%
18°C or higher
$282 Vol.
12%
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 22 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.Recent northwesterly flow has advected cooler maritime air over southern Finland, while persistent cloud cover has limited daytime insolation and kept surface heating modest. Ensemble guidance from the Finnish Meteorological Institute and ECMWF places the May 22 maximum near 14–16 °C at Helsinki-Vantaa, with the tight clustering around 15 °C and 16 °C reflecting small uncertainties in boundary-layer mixing and the exact timing of any partial clearing. Historical May climatology shows a 14–15 °C modal high, so current model consensus aligns with near-normal conditions rather than anomalous warmth or chill. Updated short-range runs and afternoon observations will be the next key inputs for traders assessing whether the peak settles at the lower or upper end of the favored range.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 22 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 20, 2026, 12:27 AM ET
Volume
$1,870End Date
May 22, 2026Market Opened
May 20, 2026, 12:27 AM ETResolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 22 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.Recent northwesterly flow has advected cooler maritime air over southern Finland, while persistent cloud cover has limited daytime insolation and kept surface heating modest. Ensemble guidance from the Finnish Meteorological Institute and ECMWF places the May 22 maximum near 14–16 °C at Helsinki-Vantaa, with the tight clustering around 15 °C and 16 °C reflecting small uncertainties in boundary-layer mixing and the exact timing of any partial clearing. Historical May climatology shows a 14–15 °C modal high, so current model consensus aligns with near-normal conditions rather than anomalous warmth or chill. Updated short-range runs and afternoon observations will be the next key inputs for traders assessing whether the peak settles at the lower or upper end of the favored range.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 22 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
$1,870End Date
May 22, 2026Market Opened
May 20, 2026, 12:27 AM ETResolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Recent northwesterly flow has advected cooler maritime air over southern Finland, while persistent cloud cover has limited daytime insolation and kept surface heating modest. Ensemble guidance from the Finnish Meteorological Institute and ECMWF places the May 22 maximum near 14–16 °C at Helsinki-Vantaa, with the tight clustering around 15 °C and 16 °C reflecting small uncertainties in boundary-layer mixing and the exact timing of any partial clearing. Historical May climatology shows a 14–15 °C modal high, so current model consensus aligns with near-normal conditions rather than anomalous warmth or chill. Updated short-range runs and afternoon observations will be the next key inputs for traders assessing whether the peak settles at the lower or upper end of the favored range.
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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