- Will the highest temperature in Helsinki be 20°C on August 31?45¢
- Will the highest temperature in Helsinki be 21°C on August 31?4¢
- Will the highest temperature in Helsinki be 22°C or higher on August 31?<1¢
- Will the highest temperature in Helsinki be 12°C or below on August 31?<1¢
- Will the highest temperature in Helsinki be 13°C on August 31?<1¢
- Will the highest temperature in Helsinki be 14°C on August 31?<1¢
- Will the highest temperature in Helsinki be 15°C on August 31?<1¢
- Will the highest temperature in Helsinki be 16°C on August 31?<1¢
- Will the highest temperature in Helsinki be 17°C on August 31?2¢
- Will the highest temperature in Helsinki be 18°C on August 31?9¢
- Will the highest temperature in Helsinki be 19°C on August 31?45¢
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 31 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.
Official forecasts from the Finnish Meteorological Institute and European models indicate a maximum of 17–19 °C for Helsinki on August 31, driven by persistent low-level cloud cover, scattered showers or thunderstorms, and southwesterly flow that limits solar heating while advecting mild marine air from the Baltic. Surface pressure near 1006 hPa and dew points around 15–17 °C further suppress afternoon peaks. The near-even market split between 19 °C and 20 °C reflects small differences in model timing of any brief clearing versus ongoing precipitation, with historical late-August climatology (mean high near 18 °C) providing context for the tight range. Updated model runs and FMI briefings over the next 12–24 hours will likely resolve the final outcome.