How close KULING has been in Helsinki, last 90 days
Mean absolute error per parameter, verified against FMI (Finland), Fintraffic vägväderstationer (Finland), METAR (flygplatsobservationer), Molnobservationer, Stationsobservationer. Nothing here is a model self-estimate — every row compares a published forecast with a measurement.
| Parameter | Mean error | Verified points |
|---|---|---|
| Cloud cover | 0.50 steg | 858 |
| Wind direction | 54.58 ° | 852 |
| Humidity | 6.83 % | 559 |
| Pressure | 2.24 hPa | 275 |
| Visibility | 6487.27 m | 273 |
| Gusts | 3.57 m/s | 270 |
Forecast accuracy in Helsinki
- Temp, mean error
- 0.5 °C
- Temp, bias
- +0.5 °C
- Wind, mean error
- –
- Rain, mean error
- –
lower is better
forecast runs warm
Based on 1 verified observations since 2026-09-11. Last 30 days: 0.5 °C mean temperature error — worse than the 90-day average.
Local weather character in Helsinki
- Gulf of Finland water temperature delays the first coastal frost compared with Vantaa and the interior.
- Cold north-easterly flow over open water can organise snow showers into bands, producing very local snowfall totals in the city.
- Sea ice and cold sea breeze create large differences between the archipelago and the centre in spring and early summer.
What you get in the app
- Hourly forecast with apparent temperature, gusts and minute-level rain start.
- Rain radar with nowcasting and live lightning strikes.
- Marine weather: wave height, wave period, sea temperature and sea level.
- Push alerts for rain, thunder, frost, strong wind and high sea level.
- A plain-language summary that explains what today actually means.