5-day weather forecast Helsinki Sep 26, 2026

14°12–14° · Light rain shower

Weather forecast Helsinki today Sep 26, 2026: light rain shower, temperature from 12 °C to 14 °C.

Precipitation probability 74%. Wind up to 7.31 m/s (gusts 13.31 m/s). Air humidity 87–97%, atmospheric pressure 758–760 mm Hg, UV index up to 1.4.

Weather Alerts

ModerateSep 26, 07:00 PM — Sep 27, 12:00 AMTranslate with Google
Yellow wind warning for sea area: Western Gulf of Finland, Sat 19.00 - Sun 0.00

Wind warning for sea areas

Wind warning for sea areas: South near gale 15 m/s in the evening.
ModerateSep 27, 12:00 AM — Sep 27, 05:00 AMTranslate with Google
Yellow wind warning for sea area: Western Gulf of Finland, Sun 0.00 - 5.00

Wind warning for sea areas

Strong wind advisory: Southwest wind 13 m/s by night.
Sunrise 07:14
Sunset 19:08
Full Moon99% illuminated
Moonrise 18:39 · Moonset 06:57
Chart
Table
Sat, Sep 26, 2026

Forecast from 12 °C to 14 °C and precipitation

Temperature & Precipitation
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Temperature (°C)121212121212131313131314141414141313131313121213
Precipitation (mm/hr)0.050.010.160.010.10.10.130.120.190.370.220.480.350.060.060.270.310.120.210.970.740.3800.07

Cloud cover and precipitation probability

Cloud cover & Rain chance
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Cloud cover (%)100100100100100997210010010010010010010010010010010010010010010010085
Rain chance (%)373346334344384548594961533434475343477470553131

Wind speed and direction

Wind & Wind gust
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Wind (m/s)6.195.695.195.194.614.314.894.894.315.314.6156.1165.696.315.696.696.817.197.314.54.895.69
Wind gust (m/s)9.929.338.118.57.617.928.429.2289.338.729.3110.539.8310.3310.9210.8611.7212.4212.9213.3110.6112.1111.61
Wind direction (°)SSE 154°SSE 159°SSE 154°SSE 149°SSE 154°SSE 164°S 184°S 180°SSW 198°S 185°SSW 202°SW 216°SSW 212°SSW 202°S 191°S 190°S 190°S 187°SSW 193°SSW 194°SSW 200°SW 235°SSW 205°SSW 209°

Air humidity

Humidity
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Humidity (%)949594939697969695969490888788889292919295909187

Atmospheric pressure

Pressure
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
Pressure (mm Hg)758758758758758758758758758758758759759760760760760759759759758759759759

Ultraviolet index

UV Index
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
UV Index0000000000.10.20.50.61.41.30.60.20.10.100000

Air quality & pollen

Air quality
Time00:0001:0002:0003:0004:0005:0006:0007:0008:0009:0010:0011:0012:0013:0014:0015:0016:0017:0018:0019:0020:0021:0022:0023:00
PM2.5 (µg/m³)1.92222.12.22.42.52.62.62.52.92.92.42.22.22.42.32.52.62.42.32.72.6
PM10 (µg/m³)3332.82.733.33.33.53.73.73.83.63.33.63.13.544.64.43.83.24.75
Ozone (O₃) (µg/m³)474747454443424239394041475458565555606767676970
NO₂ (µg/m³)3.8444.34.855.35.866.56.35.65.64.244.14.85.14.64.84.13.93.53.4
SO₂ (µg/m³)0.10.10.20.20.20.20.30.30.40.40.30.30.30.20.20.20.20.20.30.20.20.10.20.2
CO (µg/m³)170170170170170171174176179179179177173170168169169175178179178179172169
Sat, Sep 26, 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 74%. 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 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 74%) 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 74% 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 1.4; 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.