5-day weather forecast Helsinki Sep 23, 2026
11°Weather forecast Helsinki today Sep 23, 2026: patchy rain possible, temperature from 8 °C to 12 °C.
Precipitation probability 49%. Wind up to 5.39 m/s (gusts 13.61 m/s). Air humidity 81–96%, atmospheric pressure 763–767 mm Hg, UV index up to 0.3.
5 days at a glance — tap a day to open it
Sunrise 07:07
Sunset 19:18
Sunset 19:18
Waxing Gibbous95% illuminated
Moonrise 18:41 · Moonset 02:42
Moonrise 18:41 · Moonset 02:42
Chart
Table
Wed, Sep 23, 2026
| Time | Weather | Temperature | Rain chance | Cloud cover | Humidity | Pressure | Wind | UV Index |
|---|---|---|---|---|---|---|---|---|
| 00:00 |  Clear | 9 °C | 11% | 0% | 84% | 767 mm Hg | NNE 17° 3.89 (10.83) m/s | 0 |
| 01:00 | Clear | 9 °C | 12% | 0% | 87% | 767 mm Hg | NNE 14° 4 (10.31) m/s | 0 |
| 02:00 | Clear | 8 °C | 13% | 0% | 89% | 767 mm Hg | N 11° 4.11 (10.61) m/s | 0 |
| 03:00 | Clear | 8 °C | 13% | 0% | 90% | 767 mm Hg | N 11° 4.5 (11.42) m/s | 0 |
| 04:00 | Clear | 8 °C | 14% | 0% | 91% | 766 mm Hg | N 10° 4.5 (11.92) m/s | 0 |
| 05:00 | Clear | 8 °C | 14% | 1% | 91% | 766 mm Hg | N 10° 4.69 (12.72) m/s | 0 |
| 06:00 | Clear | 8 °C | 14% | 3% | 90% | 765 mm Hg | NNE 13° 4.81 (13.39) m/s | 0 |
| 07:00 |  Partly cloudy | 8 °C | 19% | 50% | 90% | 765 mm Hg | N 11° 5.11 (13.61) m/s | 0 |
| 08:00 |  Overcast | 9 °C | 26% | 92% | 87% | 764 mm Hg | N 10° 5.39 (13.61) m/s | 0 |
| 09:00 |  Patchy rain possible | 10 °C | 25% (0.01 mm/hr) | 100% | 82% | 764 mm Hg | NNE 16° 5.11 (13.14) m/s | 0.3 |
| 10:00 | Patchy rain possible | 10 °C | 28% (0.04 mm/hr) | 100% | 81% | 764 mm Hg | NNE 23° 5 (12.5) m/s | 0.1 |
| 11:00 | Patchy rain possible | 10 °C | 26% (0.01 mm/hr) | 100% | 81% | 764 mm Hg | NNE 32° 5.11 (11.11) m/s | 0.1 |
| 12:00 | Patchy rain possible | 11 °C | 32% (0.07 mm/hr) | 100% | 82% | 764 mm Hg | NE 40° 4.69 (10.31) m/s | 0.2 |
| 13:00 |  Light drizzle | 11 °C | 49% (0.2 mm/hr) | 100% | 87% | 764 mm Hg | NE 40° 4.39 (9.61) m/s | 0.2 |
| 14:00 | Patchy rain possible | 10 °C | 40% (0.1 mm/hr) | 100% | 90% | 764 mm Hg | NNE 33° 4.19 (9.42) m/s | 0.3 |
| 15:00 | Patchy rain possible | 11 °C | 42% (0.11 mm/hr) | 100% | 92% | 764 mm Hg | NNE 32° 4.11 (9) m/s | 0.3 |
| 16:00 | Overcast | 11 °C | 31% | 100% | 93% | 764 mm Hg | NNE 33° 3.89 (8.75) m/s | 0.3 |
| 17:00 | Patchy rain possible | 11 °C | 34% (0.02 mm/hr) | 100% | 93% | 764 mm Hg | NE 40° 3.81 (9) m/s | 0.2 |
| 18:00 | Overcast | 12 °C | 31% | 96% | 93% | 763 mm Hg | NE 44° 3.61 (7.64) m/s | 0.1 |
| 19:00 |  Mist | 12 °C | 38% | 100% | 94% | 763 mm Hg | NE 47° 3.31 (6.94) m/s | 0 |
| 20:00 |  Mist | 11 °C | 32% (0.02 mm/hr) | 67% | 96% | 763 mm Hg | NE 52° 2.81 (6.42) m/s | 0 |
| 21:00 | Mist | 11 °C | 20% | 12% | 95% | 763 mm Hg | E 81° 2.39 (5.61) m/s | 0 |
| 22:00 | Patchy rain possible | 11 °C | 31% (0.04 mm/hr) | 80% | 93% | 763 mm Hg | ESE 109° 2.11 (4) m/s | 0 |
| 23:00 | Patchy rain possible | 11 °C | 28% (0.04 mm/hr) | 73% | 92% | 763 mm Hg | ESE 118° 2.19 (2.72) m/s | 0 |
Wed, Sep 23, 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 8 to 15 °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 86%. 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 8 to 15 °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 9 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 86%) 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 86% 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 0.3; 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.