Latest numerical weather predictions from the Finnish Meteorological Institute and European models indicate a daily maximum near 18°C in Helsinki on August 30, driven by southwesterly flow, increasing cloud cover, and 40-60% rain probability that will suppress diurnal warming. Persistent marine influence and moderate winds around 6-8 m/s limit peak temperatures despite seasonal norms of 18-20°C. Trader emphasis on 19-20°C outcomes likely stems from ensemble spread and the possibility of brief clearing allowing brief spikes above forecast guidance, while cooler 17-18°C scenarios gain support from confirmed moisture and pressure trends. Updated model runs and official observations through the weekend will refine these probabilities ahead of 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 30?
Highest temperature in Helsinki on August 30?
19°C 38%
20°C 32%
18°C 19%
21°C 12%
NEW
NEW
Aug 30, 2026
14°C or below
<1%
15°C
1%
16°C
3%
17°C
6%
18°C
19%
19°C
38%
20°C
32%
21°C
12%
22°C
2%
23°C
1%
24°C or higher
1%
19°C 38%
20°C 32%
18°C 19%
21°C 12%
NEW
NEW
Aug 30, 2026
14°C or below
$41 Vol.
<1%
15°C
$25 Vol.
1%
16°C
$0 Vol.
3%
17°C
$72 Vol.
6%
18°C
$64 Vol.
19%
19°C
$62 Vol.
38%
20°C
$57 Vol.
32%
21°C
$26 Vol.
12%
22°C
$0 Vol.
2%
23°C
$32 Vol.
1%
24°C or higher
$35 Vol.
1%
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 30 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.Latest numerical weather predictions from the Finnish Meteorological Institute and European models indicate a daily maximum near 18°C in Helsinki on August 30, driven by southwesterly flow, increasing cloud cover, and 40-60% rain probability that will suppress diurnal warming. Persistent marine influence and moderate winds around 6-8 m/s limit peak temperatures despite seasonal norms of 18-20°C. Trader emphasis on 19-20°C outcomes likely stems from ensemble spread and the possibility of brief clearing allowing brief spikes above forecast guidance, while cooler 17-18°C scenarios gain support from confirmed moisture and pressure trends. Updated model runs and official observations through the weekend will refine these probabilities ahead of resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 30 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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 28, 2026, 12:58 AM ET
Volume
$414End Date
Aug 30, 2026Market Opened
Aug 28, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 30 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.Latest numerical weather predictions from the Finnish Meteorological Institute and European models indicate a daily maximum near 18°C in Helsinki on August 30, driven by southwesterly flow, increasing cloud cover, and 40-60% rain probability that will suppress diurnal warming. Persistent marine influence and moderate winds around 6-8 m/s limit peak temperatures despite seasonal norms of 18-20°C. Trader emphasis on 19-20°C outcomes likely stems from ensemble spread and the possibility of brief clearing allowing brief spikes above forecast guidance, while cooler 17-18°C scenarios gain support from confirmed moisture and pressure trends. Updated model runs and official observations through the weekend will refine these probabilities ahead of resolution.
This market will resolve to the temperature range that contains the highest temperature recorded by NOAA at the Helsinki Vantaa Airport Station in degrees Celsius on 30 Aug '26.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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.
The resolution source for this market will be information from NOAA, specifically the highest reading under the "Temp" column for all times on this day, available here: https://www.weather.gov/wrh/timeseries?site=efhk
If NOAA data for the observation date is unavailable by 11:59 PM ET on the day following the observation date, the Weather Underground Daily Observations table will be used as the resolution source.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °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
$414End Date
Aug 30, 2026Market Opened
Aug 28, 2026, 12:58 AM ETResolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Latest numerical weather predictions from the Finnish Meteorological Institute and European models indicate a daily maximum near 18°C in Helsinki on August 30, driven by southwesterly flow, increasing cloud cover, and 40-60% rain probability that will suppress diurnal warming. Persistent marine influence and moderate winds around 6-8 m/s limit peak temperatures despite seasonal norms of 18-20°C. Trader emphasis on 19-20°C outcomes likely stems from ensemble spread and the possibility of brief clearing allowing brief spikes above forecast guidance, while cooler 17-18°C scenarios gain support from confirmed moisture and pressure trends. Updated model runs and official observations through the weekend will refine these probabilities ahead of 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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