Recent forecasts from the Finnish Meteorological Institute and supporting models indicate a high near 16°C for Helsinki on August 23, driven by persistent cloud cover, light rain, and northerly flow that limits daytime heating. This setup aligns with the market’s heaviest weighting on 16°C (53.5%) and 15°C (33.0%), as late-summer climatology shows declining highs averaging around 17–19°C by this date. Minor model differences in frontal timing or cloud thickness could shift the peak by roughly 1°C, explaining the smaller probabilities assigned to 17°C and higher. Official hourly observations through midday will further refine the final maximum before resolution.
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 23?
Highest temperature in Helsinki on August 23?
16°C 56%
15°C 29%
17°C 8%
18°C 2%
$15,245 Vol.
$15,245 Vol.
Aug 23, 2026
9°C or below
<1%
10°C
<1%
11°C
<1%
12°C
<1%
13°C
<1%
14°C
<1%
15°C
29%
16°C
56%
17°C
8%
18°C
2%
19°C or higher
1%
16°C 56%
15°C 29%
17°C 8%
18°C 2%
$15,245 Vol.
$15,245 Vol.
Aug 23, 2026
9°C or below
$232 Vol.
<1%
10°C
$232 Vol.
<1%
11°C
$235 Vol.
<1%
12°C
$266 Vol.
<1%
13°C
$236 Vol.
<1%
14°C
$3,520 Vol.
<1%
15°C
$2,924 Vol.
29%
16°C
$2,285 Vol.
56%
17°C
$2,327 Vol.
8%
18°C
$2,007 Vol.
2%
19°C or higher
$981 Vol.
1%
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 23 Aug '26.
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.Recent forecasts from the Finnish Meteorological Institute and supporting models indicate a high near 16°C for Helsinki on August 23, driven by persistent cloud cover, light rain, and northerly flow that limits daytime heating. This setup aligns with the market’s heaviest weighting on 16°C (53.5%) and 15°C (33.0%), as late-summer climatology shows declining highs averaging around 17–19°C by this date. Minor model differences in frontal timing or cloud thickness could shift the peak by roughly 1°C, explaining the smaller probabilities assigned to 17°C and higher. Official hourly observations through midday will further refine the final maximum before resolution.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 23 Aug '26.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 23 Aug '26.
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 21, 2026, 12:58 AM ET
Volume
$15,245End Date
Aug 23, 2026Market Opened
Aug 21, 2026, 12:58 AM ETResolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 23 Aug '26.
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.Recent forecasts from the Finnish Meteorological Institute and supporting models indicate a high near 16°C for Helsinki on August 23, driven by persistent cloud cover, light rain, and northerly flow that limits daytime heating. This setup aligns with the market’s heaviest weighting on 16°C (53.5%) and 15°C (33.0%), as late-summer climatology shows declining highs averaging around 17–19°C by this date. Minor model differences in frontal timing or cloud thickness could shift the peak by roughly 1°C, explaining the smaller probabilities assigned to 17°C and higher. Official hourly observations through midday will further refine the final maximum before resolution.
This market will resolve based on the highest temperature recorded in the 'Daily Observations' table on Weather Underground, not the figure displayed in the 'Day High & Low' summary section; in the event of any discrepancy between the two, the Daily Observations table shall be the primary resolution source not the Day High & Low section.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 23 Aug '26.
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.
This market will resolve to the temperature range that contains the highest temperature recorded at the Helsinki Vantaa Airport Station in degrees Celsius on 23 Aug '26.
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.
Volume
$15,245End Date
Aug 23, 2026Market Opened
Aug 21, 2026, 12:58 AM ETResolution Source
https://www.wunderground.com/history/daily/fi/vantaa/EFHKResolver
0x69c47De9D...Recent forecasts from the Finnish Meteorological Institute and supporting models indicate a high near 16°C for Helsinki on August 23, driven by persistent cloud cover, light rain, and northerly flow that limits daytime heating. This setup aligns with the market’s heaviest weighting on 16°C (53.5%) and 15°C (33.0%), as late-summer climatology shows declining highs averaging around 17–19°C by this date. Minor model differences in frontal timing or cloud thickness could shift the peak by roughly 1°C, explaining the smaller probabilities assigned to 17°C and higher. Official hourly observations through midday will further refine the final maximum before resolution.
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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