5-day weather forecast Helsinki Sep 12, 2026
13°Weather forecast Helsinki today Sep 12, 2026: overcast, temperature from 8 °C to 15 °C.
Precipitation probability 73%. Wind up to 3.11 m/s (gusts 8.03 m/s). Air humidity 74–98%, atmospheric pressure 760–763 mm Hg, UV index up to 2.1.
5 days at a glance — tap a day to open it
Sunrise 06:41
Sunset 19:51
Sunset 19:51
New Moon3% illuminated
Moonrise 08:23 · Moonset 19:33
Moonrise 08:23 · Moonset 19:33
Chart
Table
Sat, Sep 12, 2026
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 10 °C | 13% | 4% | 89% | 762 mm Hg | WNW 284° 3.11 (8.03) m/s | 0 |
| 01:00 | Clear | 9 °C | 14% | 4% | 91% | 762 mm Hg | WNW 283° 2.89 (7.22) m/s | 0 |
| 02:00 | Clear | 9 °C | 15% | 5% | 92% | 763 mm Hg | WNW 282° 2.81 (7.11) m/s | 0 |
| 03:00 | Clear | 8 °C | 15% | 5% | 92% | 763 mm Hg | WNW 287° 2.61 (6.5) m/s | 0 |
| 04:00 | Clear | 8 °C | 14% | 5% | 92% | 763 mm Hg | WNW 292° 2.31 (4.64) m/s | 0 |
| 05:00 | Clear | 8 °C | 15% | 10% | 91% | 762 mm Hg | WNW 301° 1.81 (2) m/s | 0 |
| 06:00 |  Overcast | 8 °C | 30% | 97% | 92% | 762 mm Hg | WNW 300° 1.39 (1.53) m/s | 0 |
| 07:00 | Overcast | 8 °C | 31% | 100% | 92% | 763 mm Hg | WNW 301° 1.19 (1.19) m/s | 0 |
| 08:00 | Overcast | 10 °C | 28% | 100% | 86% | 763 mm Hg | NW 314° 1 (3) m/s | 0.2 |
| 09:00 | Overcast | 11 °C | 24% | 100% | 80% | 763 mm Hg | W 279° 0.31 (0.83) m/s | 0.5 |
| 10:00 | Overcast | 13 °C | 21% | 100% | 76% | 763 mm Hg | WSW 252° 0.89 (1.94) m/s | 1 |
| 11:00 | Overcast | 13 °C | 21% | 100% | 74% | 763 mm Hg | WSW 255° 1.31 (3) m/s | 1.5 |
| 12:00 | Overcast | 14 °C | 21% | 100% | 75% | 763 mm Hg | WSW 258° 1.69 (3.39) m/s | 1.9 |
| 13:00 |  Patchy rain possible | 15 °C | 23% (0.03 mm/hr) | 100% | 74% | 762 mm Hg | WSW 251° 2.11 (4.11) m/s | 2.1 |
| 14:00 | Overcast | 14 °C | 24% | 100% | 80% | 762 mm Hg | WSW 240° 2.39 (4.61) m/s | 1.9 |
| 15:00 | Patchy rain possible | 14 °C | 31% (0.04 mm/hr) | 100% | 86% | 762 mm Hg | WSW 242° 2.69 (5.22) m/s | 1.4 |
| 16:00 | Patchy rain possible | 13 °C | 32% (0.03 mm/hr) | 100% | 90% | 762 mm Hg | SW 223° 2.11 (4.64) m/s | 1.1 |
| 17:00 | Patchy rain possible | 13 °C | 36% (0.06 mm/hr) | 100% | 91% | 761 mm Hg | SSW 208° 1.19 (2.89) m/s | 0.7 |
| 18:00 | Patchy rain possible | 13 °C | 43% (0.12 mm/hr) | 100% | 93% | 761 mm Hg | SW 236° 1.11 (2.11) m/s | 0.4 |
| 19:00 |  Light drizzle | 13 °C | 73% (0.57 mm/hr) | 100% | 97% | 761 mm Hg | WSW 250° 1.11 (1.39) m/s | 0.1 |
| 20:00 |  Light rain shower | 12 °C | 54% (0.27 mm/hr) | 100% | 98% | 761 mm Hg | WSW 244° 1.19 (1.5) m/s | 0 |
| 21:00 |  Fog | 13 °C | 44% (0.02 mm/hr) | 100% | 98% | 761 mm Hg | WSW 243° 1.19 (1.83) m/s | 0 |
| 22:00 | Fog | 12 °C | 50% (0.07 mm/hr) | 100% | 98% | 760 mm Hg | W 267° 1.19 (1.31) m/s | 0 |
| 23:00 | Light rain shower | 12 °C | 51% (0.22 mm/hr) | 100% | 97% | 760 mm Hg | W 269° 1 (1.25) m/s | 0 |
Sat, Sep 12, 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 7 to 18 °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 79%. 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 7 to 18 °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 6 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 79%) 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.
Will I need an umbrella or sunscreen in Helsinki this week?
Rain reaches a 79% chance across the next 5 days, so pack something waterproof for the wettest of them — the daily strip above shows which. Today’s UV index peaks at 2.1; sunscreen is worth it from about 3 upwards.
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.