Trader consensus on Polymarket tilts toward 11°C (41.5% implied probability) as Helsinki's highest temperature today, edging out 12°C (32.5%), amid tight clustering driven by divergent global forecast models like ECMWF and GFS ensembles. The Finnish Meteorological Institute's latest hourly outlook, updated this morning, projects a 9°C peak around 15:00–18:00 under light easterly winds (3–5 m/s), low precipitation risk, and partial cloud cover allowing modest solar heating. However, some ensemble members indicate upside potential to 11–12°C if skies clear faster or boundary-layer mixing enhances, differentiating outcomes by subtle insolation and advection variations. Real-time Helsinki-Vantaa Airport observations—key for resolution—plus afternoon FMI updates could tip the balance as the day progresses.
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 12?
Highest temperature in Helsinki on April 12?
11°C 42%
12°C 31%
10°C 16%
13°C 6.0%
$29,844 Vol.
$29,844 Vol.
4°C or below
<1%
5°C
<1%
6°C
<1%
7°C
<1%
8°C
<1%
9°C
4%
10°C
16%
11°C
42%
12°C
31%
13°C
6%
14°C or higher
1%
11°C 42%
12°C 31%
10°C 16%
13°C 6.0%
$29,844 Vol.
$29,844 Vol.
4°C or below
<1%
5°C
<1%
6°C
<1%
7°C
<1%
8°C
<1%
9°C
4%
10°C
16%
11°C
42%
12°C
31%
13°C
6%
14°C or higher
1%
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 8, 2026, 12:11 AM ET
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Outcome proposed: No
Dispute window
Final
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...Outcome proposed: No
Dispute window
Final
Trader consensus on Polymarket tilts toward 11°C (41.5% implied probability) as Helsinki's highest temperature today, edging out 12°C (32.5%), amid tight clustering driven by divergent global forecast models like ECMWF and GFS ensembles. The Finnish Meteorological Institute's latest hourly outlook, updated this morning, projects a 9°C peak around 15:00–18:00 under light easterly winds (3–5 m/s), low precipitation risk, and partial cloud cover allowing modest solar heating. However, some ensemble members indicate upside potential to 11–12°C if skies clear faster or boundary-layer mixing enhances, differentiating outcomes by subtle insolation and advection variations. Real-time Helsinki-Vantaa Airport observations—key for resolution—plus afternoon FMI updates could tip the balance as the day progresses.
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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