The Finnish Meteorological Institute's (FMI) latest forecast, updated April 12, projects a high of 11°C near 15:00 at Helsinki-Vantaa Airport on April 13 under light 2–3 m/s winds, mostly clear skies, and <10% precipitation chance, driving trader consensus toward an 81.5% implied probability for 12°C or higher as mild southerly flow and solar heating enable potential 1–2°C overruns common in short-range spring models. Recent observations show today's high reaching 9°C amid similar dry conditions, marking a warming trend from earlier April cold snaps averaging below 5°C. ECMWF/GFS ensembles support this mild outlook, though minor cloud variations could cap peaks at 11°C (13.5% odds); resolution hinges on official airport measurements tomorrow evening.
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 13?
Highest temperature in Helsinki on April 13?
12°C or higher 78%
11°C 14%
10°C 3.6%
9°C 1.6%
$11,573 Vol.
$11,573 Vol.
2°C or below
<1%
3°C
<1%
4°C
<1%
5°C
<1%
6°C
<1%
7°C
<1%
8°C
1%
9°C
2%
10°C
4%
11°C
14%
12°C or higher
78%
12°C or higher 78%
11°C 14%
10°C 3.6%
9°C 1.6%
$11,573 Vol.
$11,573 Vol.
2°C or below
<1%
3°C
<1%
4°C
<1%
5°C
<1%
6°C
<1%
7°C
<1%
8°C
1%
9°C
2%
10°C
4%
11°C
14%
12°C or higher
78%
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 9, 2026, 12:13 AM ET
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...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.
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...The Finnish Meteorological Institute's (FMI) latest forecast, updated April 12, projects a high of 11°C near 15:00 at Helsinki-Vantaa Airport on April 13 under light 2–3 m/s winds, mostly clear skies, and <10% precipitation chance, driving trader consensus toward an 81.5% implied probability for 12°C or higher as mild southerly flow and solar heating enable potential 1–2°C overruns common in short-range spring models. Recent observations show today's high reaching 9°C amid similar dry conditions, marking a warming trend from earlier April cold snaps averaging below 5°C. ECMWF/GFS ensembles support this mild outlook, though minor cloud variations could cap peaks at 11°C (13.5% odds); resolution hinges on official airport measurements tomorrow evening.
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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