5-day weather forecast Helsinki 18-04-2026
Weather forecast Helsinki today 18.04.2026: partly cloudy, temperature from 4 °C to 11 °C.
No precipitation expected. Wind up to 3.61 m/s (gusts 6.11 m/s). Air humidity 35–74%, atmospheric pressure 767–769 mm Hg, UV index up to 3.
Sunset 20:46
Moonrise 05:31 · Moonset 23:21
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Overcast | 7 °C | 0% | 100% | 59% | 767 mm Hg | ENE 57° 1.31 (2.72) m/s | 0 |
| 01:00 | Overcast | 6 °C | 0% | 100% | 61% | 767 mm Hg | NE 49° 1.5 (3.14) m/s | 0 |
| 02:00 | Overcast | 6 °C | 0% | 100% | 62% | 767 mm Hg | NE 34° 1.69 (3.58) m/s | 0 |
| 03:00 | Overcast | 6 °C | 0% | 100% | 62% | 767 mm Hg | NE 38° 2.11 (4.42) m/s | 0 |
| 04:00 | Overcast | 6 °C | 0% | 100% | 64% | 767 mm Hg | NE 50° 2.5 (5.25) m/s | 0 |
| 05:00 |  Cloudy | 5 °C | 0% | 73% | 68% | 767 mm Hg | ENE 65° 2.69 (5.67) m/s | 0 |
| 06:00 |  Partly cloudy | 4 °C | 0% | 49% | 72% | 767 mm Hg | ENE 70° 2.61 (5.44) m/s | 0 |
| 07:00 |  Sunny | 4 °C | 0% | 21% | 74% | 767 mm Hg | ENE 74° 2.5 (4.83) m/s | 0.1 |
| 08:00 | Sunny | 5 °C | 0% | 12% | 72% | 768 mm Hg | E 83° 2.61 (4.42) m/s | 0.4 |
| 09:00 | Sunny | 6 °C | 0% | 12% | 68% | 768 mm Hg | E 90° 2.89 (4.58) m/s | 0.8 |
| 10:00 | Sunny | 7 °C | 0% | 17% | 64% | 768 mm Hg | E 101° 2.81 (4.22) m/s | 1.5 |
| 11:00 | Partly cloudy | 11 °C | 0% | 0% | 35% | 767 mm Hg | ESE 114° 2.61 (3.83) m/s | 2.1 |
| 12:00 | Partly cloudy | 7 °C | 0% | 34% | 60% | 768 mm Hg | SE 127° 2.5 (3.61) m/s | 2.7 |
| 13:00 | Partly cloudy | 8 °C | 0% | 31% | 58% | 768 mm Hg | SE 138° 2.5 (3.72) m/s | 3 |
| 14:00 | Partly cloudy | 8 °C | 0% | 37% | 57% | 768 mm Hg | SSE 156° 2.69 (4.06) m/s | 2.9 |
| 15:00 | Partly cloudy | 8 °C | 0% | 34% | 57% | 768 mm Hg | SSE 161° 3 (4.58) m/s | 2.5 |
| 16:00 | Partly cloudy | 8 °C | 0% | 47% | 57% | 768 mm Hg | SSE 162° 2.81 (4.22) m/s | 1.8 |
| 17:00 | Partly cloudy | 8 °C | 0% | 26% | 58% | 767 mm Hg | SSE 168° 2.5 (3.89) m/s | 1.2 |
| 18:00 | Partly cloudy | 7 °C | 0% | 41% | 59% | 767 mm Hg | SE 143° 2.89 (4.5) m/s | 0.6 |
| 19:00 | Partly cloudy | 6 °C | 0% | 38% | 62% | 768 mm Hg | ESE 114° 2.61 (4.22) m/s | 0.3 |
| 20:00 |  Overcast | 6 °C | 0% | 97% | 66% | 768 mm Hg | ESE 110° 1.69 (2.94) m/s | 0 |
| 21:00 | Overcast | 5 °C | 0% | 100% | 69% | 768 mm Hg | ESE 120° 1 (1.83) m/s | 0 |
| 22:00 | Overcast | 5 °C | 0% | 100% | 67% | 769 mm Hg | ENE 63° 1.11 (1.97) m/s | 0 |
| 23:00 | Overcast | 5 °C | 0% | 93% | 70% | 769 mm Hg | ENE 75° 3.61 (6.11) m/s | 0 |
Frequently asked questions about the weather in Helsinki
Today in Helsinki the temperature ranges from 4 °C to 11 °C, wind up to 3.61 m/s. Check the detailed hourly forecast above for more information.
The precipitation probability in Helsinki today is 0%. View the full multi-day forecast above to see the rain chances for each upcoming day.
The wind speed in Helsinki today reaches up to 3.61 m/s with gusts up to 6.11 m/s. Check the detailed wind chart above for hourly wind data.
The air humidity in Helsinki today ranges from 35% to 74%. View the humidity chart above for hourly details.
The UV index in Helsinki today reaches up to 3. Check the UV index chart above for hourly values throughout the day.
The atmospheric pressure in Helsinki today ranges from 767 to 769 mm Hg. View the pressure chart above for hourly readings.
Cloud cover in Helsinki today reaches up to 100%. Check the cloud cover chart above for hourly details throughout the day.
Helsinki on the map
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.