Recent short-range model guidance from sources like the Finnish Meteorological Institute and ECMWF points to a mild air mass over southern Finland, with Helsinki's daytime maximum on August 3 most likely reaching 19–22 °C amid moderate westerly flow and partial cloud cover. This keeps 21 °C and 22 °C as the closest market-implied outcomes, reflecting the narrow spread in forecast highs and the influence of the Baltic Sea’s thermal inertia, which typically damps peak temperatures near the coast. Historical August climatology shows a mean daily maximum near 19–20 °C, so current consensus sits slightly above average but well below heat-wave thresholds. Minor shifts in timing of any clearing or onshore breeze could easily move the observed high by 1–2 °C, sustaining tight probabilities between the two leading bins until final observational data resolve the market.
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 August 3?
21°C 35%
22°C 29%
23°C 14%
20°C 13%
17°C or below
1%
18°C
3%
19°C
6%
20°C
13%
21°C
35%
22°C
29%
23°C
14%
24°C
5%
25°C
2%
26°C
<1%
27°C or higher
<1%
21°C 35%
22°C 29%
23°C 14%
20°C 13%
17°C or below
1%
18°C
3%
19°C
6%
20°C
13%
21°C
35%
22°C
29%
23°C
14%
24°C
5%
25°C
2%
26°C
<1%
27°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 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: Aug 1, 2026, 12:04 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...Recent short-range model guidance from sources like the Finnish Meteorological Institute and ECMWF points to a mild air mass over southern Finland, with Helsinki's daytime maximum on August 3 most likely reaching 19–22 °C amid moderate westerly flow and partial cloud cover. This keeps 21 °C and 22 °C as the closest market-implied outcomes, reflecting the narrow spread in forecast highs and the influence of the Baltic Sea’s thermal inertia, which typically damps peak temperatures near the coast. Historical August climatology shows a mean daily maximum near 19–20 °C, so current consensus sits slightly above average but well below heat-wave thresholds. Minor shifts in timing of any clearing or onshore breeze could easily move the observed high by 1–2 °C, sustaining tight probabilities between the two leading bins until final observational data resolve the market.
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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