Helsinki Will Reach 10°C, NOAA Timeseries Will Show

The highest temperature in Helsinki will be 10°C on October 14, 2026 and NOAA’s Helsinki Vantaa Airport Station timeseries page will show a 10°C entry in the Temp column. Forecasters at NOAA will publish the official efhk timeseries and the measurement will be a whole degree Celsius as the resoluti…