5-day weather forecast Helsinki 18-03-2026
Weather forecast Helsinki today 18.03.2026: sunny, temperature from 1 °C to 3 °C.
No precipitation expected. Wind up to 6.5 m/s (gusts 11.17 m/s). Air humidity 83–93%, atmospheric pressure 769–773 mm Hg, UV index up to 1.5.
Sunset 18:29
| Temperature | Precipitation | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 0 °C | 0% | 2% | 91% | 771 mm Hg | SW 236° 2.81 (5.61) m/s | 0 |
| 01:00 | Clear | 0 °C | 0% | 4% | 91% | 772 mm Hg | SW 232° 3 (5.92) m/s | 0 |
| 02:00 | Clear | 1 °C | 0% | 5% | 91% | 772 mm Hg | SW 233° 3.5 (6.75) m/s | 0 |
| 03:00 | Clear | 1 °C | 0% | 10% | 91% | 772 mm Hg | SW 223° 3.5 (6.61) m/s | 0 |
| 04:00 | Clear | 0 °C | 0% | 12% | 92% | 772 mm Hg | SW 220° 3.5 (6.58) m/s | 0 |
| 05:00 | Clear | 0 °C | 0% | 15% | 92% | 773 mm Hg | SW 216° 3.81 (7.11) m/s | 0 |
| 06:00 | Clear | 0 °C | 0% | 19% | 92% | 773 mm Hg | SW 218° 4.11 (7.53) m/s | 0 |
| 07:00 |  Partly cloudy | 0 °C | 0% | 27% | 92% | 773 mm Hg | SW 219° 4.31 (7.78) m/s | 0 |
| 08:00 |  Cloudy | 1 °C | 0% | 76% | 89% | 773 mm Hg | SW 217° 4.5 (7.61) m/s | 0.3 |
| 09:00 | Cloudy | 2 °C | 0% | 73% | 86% | 773 mm Hg | SW 215° 4.89 (7.75) m/s | 0.6 |
| 10:00 | Cloudy | 3 °C | 0% | 65% | 84% | 773 mm Hg | SW 216° 5.31 (8.08) m/s | 1 |
| 11:00 | Partly cloudy | 2 °C | 0% | 50% | 86% | 773 mm Hg | SW 220° 5.81 (8.25) m/s | 1.3 |
| 12:00 | Partly cloudy | 3 °C | 0% | 46% | 85% | 773 mm Hg | SW 226° 6.11 (8.75) m/s | 1.5 |
| 13:00 |  Overcast | 3 °C | 0% | 100% | 84% | 773 mm Hg | SW 227° 6.19 (9.03) m/s | 1.4 |
| 14:00 | Cloudy | 3 °C | 0% | 70% | 83% | 772 mm Hg | SW 225° 6.11 (8.94) m/s | 1.2 |
| 15:00 | Cloudy | 3 °C | 0% | 64% | 84% | 772 mm Hg | SW 224° 6.19 (9.53) m/s | 0.9 |
| 16:00 | Partly cloudy | 3 °C | 0% | 52% | 83% | 771 mm Hg | SW 222° 6.39 (10.11) m/s | 0.5 |
| 17:00 |  Sunny | 3 °C | 0% | 13% | 83% | 771 mm Hg | SW 224° 6.39 (10.61) m/s | 0.2 |
| 18:00 | Sunny | 2 °C | 0% | 4% | 83% | 770 mm Hg | SW 225° 6.31 (10.83) m/s | 0 |
| 19:00 |  Partly cloudy | 1 °C | 0% | 75% | 93% | 770 mm Hg | SW 225° 6.31 (11.03) m/s | 0 |
| 20:00 | Clear | 2 °C | 0% | 7% | 84% | 770 mm Hg | SW 225° 6.5 (11.17) m/s | 0 |
| 21:00 | Clear | 2 °C | 0% | 9% | 85% | 770 mm Hg | SW 224° 6.5 (11) m/s | 0 |
| 22:00 | Clear | 2 °C | 0% | 18% | 86% | 770 mm Hg | SW 224° 6.5 (10.89) m/s | 0 |
| 23:00 | Clear | 1 °C | 0% | 9% | 87% | 769 mm Hg | SW 224° 6.31 (10.5) m/s | 0 |
Frequently asked questions about the weather in Helsinki
What is the weather in Helsinki today?
Today in Helsinki the temperature ranges from 1 °C to 3 °C, wind up to 6.5 m/s. Check the detailed hourly forecast above for more information.
Will it rain in Helsinki this week?
The precipitation probability in Helsinki today is 0%. View the full multi-day forecast above to see the rain chances for each upcoming day.
What is the wind speed in Helsinki today?
The wind speed in Helsinki today reaches up to 6.5 m/s with gusts up to 11.17 m/s. Check the detailed wind chart above for hourly wind data.
What is the humidity in Helsinki today?
The air humidity in Helsinki today ranges from 83% to 93%. View the humidity chart above for hourly details.
What is the UV index in Helsinki today?
The UV index in Helsinki today reaches up to 1.5. Check the UV index chart above for hourly values throughout the day.
What is the atmospheric pressure in Helsinki today?
The atmospheric pressure in Helsinki today ranges from 769 to 773 mm Hg. View the pressure chart above for hourly readings.
What is the cloud cover in Helsinki today?
Cloud cover in Helsinki today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.
Data Sources & Methodology
Our weather forecasts are powered by a professional weather data provider that aggregates data from national weather services, satellite observations, radar networks, and over 80,000 weather stations worldwide. Forecast data is updated multiple times daily. We convert raw data into clear summaries — wind speed in m/s, pressure in mmHg — so you can plan your day with confidence.