Latest model consensus from the Finnish Meteorological Institute and ECMWF places Helsinki's July 24 high near 19–20°C under persistent low-pressure systems and maritime influence over the Gulf of Finland, driving the market's leading 21°C (37.5%), 20°C, and 22°C contracts. Cooler-than-average conditions have dominated recent days, with July 21 peaking at just 13–14°C versus the climatological 22°C mean, reflecting thicker cloud cover and northerly flow that limits daytime heating. These dynamical factors, rather than seasonal norms, anchor trader probabilities while acknowledging typical model spread in short-range temperature forecasts.
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 July 24?
21°C 43%
22°C 23%
20°C 22%
19°C 12%
14°C or below
<1%
15°C
1%
16°C
1%
17°C
5%
18°C
12%
19°C
12%
20°C
22%
21°C
43%
22°C
23%
23°C
5%
24°C or higher
2%
21°C 43%
22°C 23%
20°C 22%
19°C 12%
14°C or below
<1%
15°C
1%
16°C
1%
17°C
5%
18°C
12%
19°C
12%
20°C
22%
21°C
43%
22°C
23%
23°C
5%
24°C or higher
2%
The resolution source for this market will be information from Wunderground, specifically the highest temperature recorded for all times on this day for the Helsinki Vantaa Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Market Opened: Jul 22, 2026, 12:03 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 for the Helsinki Vantaa Airport Station, 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 until the first data point for the following date has been published on the resolution source.
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.
Revisions to temperatures recorded within this market's timeframe will be considered until the first datapoint for the following date has been published, after which any alterations will not be considered.
Resolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Latest model consensus from the Finnish Meteorological Institute and ECMWF places Helsinki's July 24 high near 19–20°C under persistent low-pressure systems and maritime influence over the Gulf of Finland, driving the market's leading 21°C (37.5%), 20°C, and 22°C contracts. Cooler-than-average conditions have dominated recent days, with July 21 peaking at just 13–14°C versus the climatological 22°C mean, reflecting thicker cloud cover and northerly flow that limits daytime heating. These dynamical factors, rather than seasonal norms, anchor trader probabilities while acknowledging typical model spread in short-range temperature forecasts.
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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