5-day weather forecast Helsinki 20-05-2026
Weather forecast Helsinki today 20.05.2026: overcast, temperature from 8 °C to 16 °C.
Precipitation probability 65%. Wind up to 4.19 m/s (gusts 6.86 m/s). Air humidity 62–98%, atmospheric pressure 762–766 mm Hg, UV index up to 3.5.
Sunset 22:05
Moonrise 06:46 · Moonset 02:32
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Patchy rain possible | 10 °C | 65% (0.01 mm/hr) | 95% | 98% | 762 mm Hg | SW 214° 3.61 (6.11) m/s | 0 |
| 01:00 | Patchy rain possible | 9 °C | 62% (0.01 mm/hr) | 100% | 97% | 762 mm Hg | SSW 210° 4.19 (6.78) m/s | 0 |
| 02:00 | Patchy rain possible | 8 °C | 73% (0.01 mm/hr) | 100% | 98% | 762 mm Hg | SSW 211° 4.11 (6.86) m/s | 0 |
| 03:00 | Patchy rain possible | 8 °C | 83% (0.01 mm/hr) | 100% | 97% | 763 mm Hg | SW 215° 3.69 (6.11) m/s | 0 |
| 04:00 | Patchy rain possible | 8 °C | 63% (0.01 mm/hr) | 97% | 97% | 763 mm Hg | SW 219° 3.5 (5.78) m/s | 0 |
| 05:00 |  Patchy rain possible | 8 °C | 63% (0.02 mm/hr) | 98% | 97% | 763 mm Hg | SW 222° 3.69 (6.06) m/s | 0 |
| 06:00 | Patchy rain possible | 9 °C | 62% (0.02 mm/hr) | 100% | 95% | 764 mm Hg | SW 236° 3.89 (6.14) m/s | 0 |
| 07:00 |  Overcast | 9 °C | 0% | 92% | 93% | 764 mm Hg | WSW 245° 4 (6.17) m/s | 0.1 |
| 08:00 |  Cloudy | 10 °C | 0% | 81% | 91% | 764 mm Hg | WSW 256° 4.11 (6.25) m/s | 0.2 |
| 09:00 | Cloudy | 10 °C | 0% | 80% | 88% | 764 mm Hg | W 266° 4 (6.17) m/s | 0.7 |
| 10:00 | Overcast | 11 °C | 0% | 100% | 84% | 765 mm Hg | W 269° 3.81 (5.86) m/s | 1 |
| 11:00 | Overcast | 12 °C | 0% | 99% | 78% | 765 mm Hg | W 270° 3.5 (5.44) m/s | 1.4 |
| 12:00 | Overcast | 13 °C | 0% | 100% | 74% | 765 mm Hg | W 274° 3.61 (5.78) m/s | 2.5 |
| 13:00 | Overcast | 14 °C | 0% | 100% | 71% | 766 mm Hg | W 272° 3.5 (5.64) m/s | 3.5 |
| 14:00 | Cloudy | 15 °C | 0% | 76% | 67% | 766 mm Hg | W 268° 3.39 (5.22) m/s | 3.5 |
| 15:00 | Overcast | 15 °C | 0% | 100% | 64% | 766 mm Hg | WSW 257° 3.19 (4.78) m/s | 3.1 |
| 16:00 | Overcast | 16 °C | 0% | 100% | 62% | 766 mm Hg | WSW 247° 3.19 (5.03) m/s | 2.3 |
| 17:00 | Overcast | 15 °C | 0% | 99% | 62% | 766 mm Hg | WSW 237° 3.19 (5.36) m/s | 2 |
| 18:00 |  Sunny | 15 °C | 0% | 17% | 64% | 766 mm Hg | SW 230° 3 (5.36) m/s | 1.3 |
| 19:00 | Sunny | 15 °C | 0% | 5% | 64% | 766 mm Hg | WSW 238° 2.69 (5.22) m/s | 0.7 |
| 20:00 | Sunny | 14 °C | 0% | 6% | 69% | 766 mm Hg | SW 215° 2.39 (5.03) m/s | 0.3 |
| 21:00 | Sunny | 12 °C | 0% | 6% | 76% | 766 mm Hg | SW 228° 2.19 (4.61) m/s | 0.1 |
| 22:00 | Sunny | 12 °C | 0% | 8% | 78% | 766 mm Hg | W 265° 1.89 (4) m/s | 0 |
| 23:00 |  Clear | 12 °C | 0% | 4% | 78% | 766 mm Hg | WNW 300° 2.81 (5.89) m/s | 0 |
Frequently asked questions about the weather in Helsinki
Today in Helsinki the temperature ranges from 8 °C to 16 °C, wind up to 4.19 m/s. Check the detailed hourly forecast above for more information.
The precipitation probability in Helsinki today is 65%. 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 4.19 m/s with gusts up to 6.86 m/s. Check the detailed wind chart above for hourly wind data.
The air humidity in Helsinki today ranges from 62% to 98%. View the humidity chart above for hourly details.
The UV index in Helsinki today reaches up to 3.5. Check the UV index chart above for hourly values throughout the day.
The atmospheric pressure in Helsinki today ranges from 762 to 766 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.