Recent forecasts from the Finnish Meteorological Institute and supporting models indicate a daytime maximum of 20–21 °C in Helsinki on August 14, driven by persistent cloud cover that limits solar insolation, light southerly winds promoting modest marine moderation, and the absence of significant warm-air advection typical of late-summer Baltic conditions. These factors align with climatological norms for mid-August highs near 19–20 °C and reinforce trader consensus around the 21 °C (49.5 %) and 20 °C (37 %) outcomes. Minor upward revisions remain possible if afternoon clearing occurs, while any earlier stabilization of cloud decks could cap readings at or below 20 °C.
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 14?
Highest temperature in Helsinki on August 14?
21°C 45%
20°C 41%
19°C 14%
22°C 6%
$18,232 Vol.
$18,232 Vol.
Aug 14, 2026
18°C or below
1%
19°C
14%
20°C
41%
21°C
45%
22°C
6%
23°C
1%
24°C
<1%
25°C
<1%
26°C
<1%
27°C
<1%
28°C or higher
<1%
21°C 45%
20°C 41%
19°C 14%
22°C 6%
$18,232 Vol.
$18,232 Vol.
Aug 14, 2026
18°C or below
$1,895 Vol.
1%
19°C
$2,116 Vol.
14%
20°C
$3,183 Vol.
41%
21°C
$3,626 Vol.
45%
22°C
$2,120 Vol.
6%
23°C
$2,133 Vol.
1%
24°C
$900 Vol.
<1%
25°C
$507 Vol.
<1%
26°C
$1,167 Vol.
<1%
27°C
$252 Vol.
<1%
28°C or higher
$333 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 14 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 daytime maximum of 20–21 °C in Helsinki on August 14, driven by persistent cloud cover that limits solar insolation, light southerly winds promoting modest marine moderation, and the absence of significant warm-air advection typical of late-summer Baltic conditions. These factors align with climatological norms for mid-August highs near 19–20 °C and reinforce trader consensus around the 21 °C (49.5 %) and 20 °C (37 %) outcomes. Minor upward revisions remain possible if afternoon clearing occurs, while any earlier stabilization of cloud decks could cap readings at or below 20 °C.
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 14 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 14 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 12, 2026, 1:03 AM ET
Volume
$18,232End Date
Aug 14, 2026Market Opened
Aug 12, 2026, 1:03 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 14 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 daytime maximum of 20–21 °C in Helsinki on August 14, driven by persistent cloud cover that limits solar insolation, light southerly winds promoting modest marine moderation, and the absence of significant warm-air advection typical of late-summer Baltic conditions. These factors align with climatological norms for mid-August highs near 19–20 °C and reinforce trader consensus around the 21 °C (49.5 %) and 20 °C (37 %) outcomes. Minor upward revisions remain possible if afternoon clearing occurs, while any earlier stabilization of cloud decks could cap readings at or below 20 °C.
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 14 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 14 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
$18,232End Date
Aug 14, 2026Market Opened
Aug 12, 2026, 1:03 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 daytime maximum of 20–21 °C in Helsinki on August 14, driven by persistent cloud cover that limits solar insolation, light southerly winds promoting modest marine moderation, and the absence of significant warm-air advection typical of late-summer Baltic conditions. These factors align with climatological norms for mid-August highs near 19–20 °C and reinforce trader consensus around the 21 °C (49.5 %) and 20 °C (37 %) outcomes. Minor upward revisions remain possible if afternoon clearing occurs, while any earlier stabilization of cloud decks could cap readings at or below 20 °C.
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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