5-day weather forecast Helsinki 20-04-2026
Weather forecast Helsinki Monday, April 20 20.04.2026: sunny, temperature from 1 °C to 9 °C.
No precipitation expected. Wind up to 4.31 m/s (gusts 7.75 m/s). Air humidity 41–62%, atmospheric pressure 767–771 mm Hg, UV index up to 3.1.
Sunrise 05:49
Sunset 20:51
Sunset 20:51
Waxing Crescent9% illuminated
Moonrise 05:44 · Moonset 01:20
Moonrise 05:44 · Moonset 01:20
Chart
Table
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 3 °C | 0% | 6% | 55% | 770 mm Hg | N 350° 2.69 (5.67) m/s | 0 |
| 01:00 | Clear | 3 °C | 0% | 7% | 55% | 770 mm Hg | N 355° 3.11 (6.5) m/s | 0 |
| 02:00 | Clear | 2 °C | 0% | 8% | 55% | 770 mm Hg | N 0° 3.31 (6.92) m/s | 0 |
| 03:00 | Clear | 2 °C | 0% | 10% | 56% | 770 mm Hg | N 5° 3.5 (7.36) m/s | 0 |
| 04:00 | Clear | 2 °C | 0% | 11% | 56% | 770 mm Hg | N 9° 3.69 (7.75) m/s | 0 |
| 05:00 | Clear | 1 °C | 0% | 12% | 58% | 770 mm Hg | N 11° 3.69 (7.67) m/s | 0 |
| 06:00 |  Sunny | 1 °C | 0% | 14% | 59% | 770 mm Hg | N 11° 3.69 (7.61) m/s | 0 |
| 07:00 | Sunny | 2 °C | 0% | 15% | 57% | 770 mm Hg | NNE 14° 4 (7.39) m/s | 0.1 |
| 08:00 | Sunny | 3 °C | 0% | 19% | 54% | 770 mm Hg | NNE 20° 4.11 (6.36) m/s | 0.4 |
| 09:00 |  Partly cloudy | 4 °C | 0% | 29% | 49% | 770 mm Hg | NNE 29° 4.31 (6.14) m/s | 0.9 |
| 10:00 | Partly cloudy | 6 °C | 0% | 49% | 47% | 770 mm Hg | NE 35° 4.19 (5.83) m/s | 1.5 |
| 11:00 | Partly cloudy | 7 °C | 0% | 46% | 46% | 770 mm Hg | NE 41° 3.81 (5.33) m/s | 2.2 |
| 12:00 | Sunny | 8 °C | 0% | 18% | 43% | 771 mm Hg | ENE 63° 3.89 (5.5) m/s | 2.8 |
| 13:00 | Sunny | 8 °C | 0% | 7% | 43% | 771 mm Hg | ENE 71° 3.39 (4.94) m/s | 3.1 |
| 14:00 | Sunny | 8 °C | 0% | 0% | 42% | 771 mm Hg | ENE 76° 3 (4.44) m/s | 3 |
| 15:00 | Sunny | 9 °C | 0% | 3% | 41% | 770 mm Hg | ENE 74° 2.89 (4.33) m/s | 2.6 |
| 16:00 | Sunny | 9 °C | 0% | 4% | 41% | 770 mm Hg | ENE 77° 2.89 (4.44) m/s | 2 |
| 17:00 | Sunny | 9 °C | 0% | 5% | 41% | 770 mm Hg | ENE 78° 2.69 (4.25) m/s | 1.3 |
| 18:00 | Sunny | 8 °C | 0% | 9% | 47% | 767 mm Hg | WSW 255° 0.81 (1.22) m/s | 0.7 |
| 19:00 | Sunny | 8 °C | 0% | 8% | 49% | 767 mm Hg | W 263° 1 (1.64) m/s | 0.3 |
| 20:00 | Sunny | 7 °C | 0% | 9% | 54% | 767 mm Hg | WSW 250° 1.31 (2.42) m/s | 0.1 |
| 21:00 | Clear | 5 °C | 0% | 8% | 58% | 767 mm Hg | WSW 246° 1.69 (3.58) m/s | 0 |
| 22:00 | Clear | 5 °C | 0% | 6% | 61% | 767 mm Hg | WSW 252° 1.5 (3.14) m/s | 0 |
| 23:00 | Clear | 4 °C | 0% | 6% | 62% | 767 mm Hg | W 267° 0.69 (1.47) m/s | 0 |
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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.