5-day weather forecast Helsinki 27-08-2026
Weather forecast Helsinki today 27.08.2026: overcast, temperature from 15 °C to 20 °C.
Precipitation probability 20%. Wind up to 3.11 m/s (gusts 8.11 m/s). Air humidity 52–74%, atmospheric pressure 770–771 mm Hg, UV index up to 3.3.
5 days at a glance — tap a day to open it
Sunrise 06:03
Sunset 20:40
Sunset 20:40
Full Moon100% illuminated
Moonrise 20:29 · Moonset 05:00
Moonrise 20:29 · Moonset 05:00
Chart
Table
Thu, Aug 27, 2026
| Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index | ||
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Overcast | 16 °C | 17% | 100% | 68% | 770 mm Hg | NW 325° 1 (1) m/s | 0 |
| 01:00 | Overcast | 16 °C | 17% | 100% | 68% | 770 mm Hg | N 6° 1 (1.11) m/s | 0 |
| 02:00 | Overcast | 16 °C | 18% | 100% | 68% | 770 mm Hg | NNE 28° 1 (1) m/s | 0 |
| 03:00 | Overcast | 16 °C | 18% | 100% | 69% | 770 mm Hg | NE 37° 0.81 (0.81) m/s | 0 |
| 04:00 | Overcast | 16 °C | 18% | 100% | 70% | 770 mm Hg | NE 35° 0.69 (0.81) m/s | 0 |
| 05:00 | Overcast | 16 °C | 18% | 100% | 70% | 770 mm Hg | NE 39° 0.81 (0.81) m/s | 0 |
| 06:00 | Overcast | 15 °C | 19% | 100% | 70% | 770 mm Hg | NE 39° 0.81 (0.83) m/s | 0 |
| 07:00 |  Overcast | 15 °C | 19% | 100% | 70% | 770 mm Hg | NE 40° 0.81 (0.83) m/s | 0 |
| 08:00 | Overcast | 16 °C | 18% | 100% | 70% | 770 mm Hg | ENE 57° 0.89 (4.89) m/s | 0.2 |
| 09:00 | Overcast | 16 °C | 18% | 100% | 69% | 770 mm Hg | ENE 77° 1.11 (1.11) m/s | 0.4 |
| 10:00 | Overcast | 16 °C | 18% | 100% | 69% | 770 mm Hg | E 95° 0.89 (1.33) m/s | 0.8 |
| 11:00 | Overcast | 17 °C | 16% | 100% | 66% | 771 mm Hg | SE 128° 0.5 (0.83) m/s | 1.6 |
| 12:00 |  Partly cloudy | 20 °C | 5% | 44% | 52% | 770 mm Hg | S 177° 1.89 (5.89) m/s | 2.6 |
| 13:00 |  Sunny | 20 °C | 3% | 13% | 52% | 770 mm Hg | S 182° 2.5 (5.5) m/s | 3.2 |
| 14:00 | Partly cloudy | 20 °C | 4% | 31% | 53% | 770 mm Hg | S 187° 2.89 (6.89) m/s | 3.3 |
| 15:00 | Partly cloudy | 20 °C | 5% | 43% | 54% | 770 mm Hg | S 189° 3.11 (8.11) m/s | 2.9 |
| 16:00 |  Cloudy | 19 °C | 8% | 63% | 56% | 770 mm Hg | SSW 195° 2.81 (3.69) m/s | 2.1 |
| 17:00 | Overcast | 19 °C | 13% | 94% | 58% | 770 mm Hg | SSW 204° 2.39 (3.83) m/s | 1.3 |
| 18:00 | Overcast | 18 °C | 16% | 97% | 65% | 770 mm Hg | SSW 211° 1.81 (3.25) m/s | 0.7 |
| 19:00 | Overcast | 17 °C | 17% | 100% | 67% | 770 mm Hg | SW 221° 1.81 (2.61) m/s | 0.3 |
| 20:00 | Overcast | 17 °C | 18% | 100% | 69% | 770 mm Hg | SSW 213° 2.19 (3.11) m/s | 0 |
| 21:00 | Overcast | 16 °C | 19% | 100% | 71% | 770 mm Hg | SW 216° 2.31 (4.33) m/s | 0 |
| 22:00 | Overcast | 16 °C | 20% | 100% | 73% | 770 mm Hg | SW 227° 2.19 (4.36) m/s | 0 |
| 23:00 | Overcast | 16 °C | 20% | 100% | 74% | 770 mm Hg | WSW 243° 1.89 (4) m/s | 0 |
Thu, Aug 27, 2026
Frequently asked questions about the 5-day weather in Helsinki
What will the weather be like in Helsinki over the next 5 days?
Over the next 5 days in Helsinki the temperature is expected to range from about 15 to 20 °C. See the detailed hourly forecast for each of the 5 days in the charts above.
On which of the next 5 days will it rain in Helsinki?
The chance of rain in Helsinki over the next 5 days reaches 75%. Check the 5-day precipitation chart above to see exactly which days and hours bring rain.
How accurate is the 5-day weather forecast for Helsinki?
A 5-day forecast is fairly reliable: the first 2–3 days are usually very accurate, while days 4–5 may be refined. The data is updated several times a day, so check back before important plans.
Which of the next 5 days in Helsinki will be the warmest and which the coolest?
Over the next 5 days the temperature in Helsinki ranges from about 15 to 20 °C. Compare the warmest and coolest day on the temperature chart above.
Will it be windy in Helsinki over the next 5 days?
Over the next 5 days the wind in Helsinki picks up to 7 m/s. The windiest days are easy to spot on the wind chart above.
Which day of the week in Helsinki is best for a walk or a trip?
For a walk or a trip, pick the days with the lowest chance of rain (up to 75%) and light wind — easy to compare on the 5-day charts above.
How can I best use the 5-day forecast for Helsinki?
The first 2–3 days are reliable enough for firm decisions, while days 4–5 are a guide that sharpens as they approach. The forecast is updated several times a day, so check again before important plans.
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.