Recent forecasts from models such as GFS and ECMWF indicate a highest temperature in Helsinki on September 11 likely falling between 16°C and 18°C, aligning with the closely matched market-implied odds for those outcomes. A northwest flow behind a frontal passage is expected to bring cooler maritime air from the Baltic Sea, moderating daytime highs while variable cloud cover and light showers limit solar heating and reduce the chance of reaching 19°C or higher. Historical September averages near 16°C provide context, but short-term model spread in timing and intensity of precipitation creates the narrow edge for 17°C over 16°C or 18°C ahead of updated runs from the Finnish Meteorological Institute.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-updateHighest temperature in Helsinki on September 11?
17°C 38%
16°C 28%
18°C 14%
15°C 11%
10°C or below
1%
11°C
3%
12°C
3%
13°C
5%
14°C
5%
15°C
11%
16°C
28%
17°C
38%
18°C
14%
19°C
7%
20°C or higher
2%
17°C 38%
16°C 28%
18°C 14%
15°C 11%
10°C or below
1%
11°C
3%
12°C
3%
13°C
5%
14°C
5%
15°C
11%
16°C
28%
17°C
38%
18°C
14%
19°C
7%
20°C or higher
2%
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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.
Binuksan ang Market: Sep 9, 2026, 12:58 AM ET
Resolution Source
https://www.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...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.
In the event that there is no data for the observation date by 11:59 PM ET on the day following the observation date, this market will resolve to the lowest bracket.
To toggle between Fahrenheit and Celsius, click the "Switch to Metric Units" button until the relevant table displays °C.
This market will resolve once the first data point for the following date has been published on the resolution source, or by 11:59 PM ET on the day following the observation date, whichever comes first.
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.weather.gov/wrh/timeseries?site=efhkResolver
0x69c47De9D...Recent forecasts from models such as GFS and ECMWF indicate a highest temperature in Helsinki on September 11 likely falling between 16°C and 18°C, aligning with the closely matched market-implied odds for those outcomes. A northwest flow behind a frontal passage is expected to bring cooler maritime air from the Baltic Sea, moderating daytime highs while variable cloud cover and light showers limit solar heating and reduce the chance of reaching 19°C or higher. Historical September averages near 16°C provide context, but short-term model spread in timing and intensity of precipitation creates the narrow edge for 17°C over 16°C or 18°C ahead of updated runs from the Finnish Meteorological Institute.
Eksperimental na AI-generated summary na nire-reference ang Polymarket data. Hindi ito trading advice at wala itong papel sa kung paano nire-resolve ang market na ito. · Na-update
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