5-day weather forecast Helsinki 16-08-2026

Weather forecast Helsinki today 16.08.2026: partly cloudy, temperature from 15 °C to 21 °C.

Precipitation probability 21%. Wind up to 7.11 m/s (gusts 9.11 m/s). Air humidity 65–85%, atmospheric pressure 751–755 mm Hg, UV index up to 3.5.

Sunrise 05:36
Sunset 21:12
Waxing Crescent18% illuminated
Moonrise 11:03 · Moonset 21:21
Chart
Table
Sun, Aug 16, 2026

Forecast from 15 °C to 21 °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)171818171718171819192020202120202019181817161515
Precipitation (mm/hr)0.010.010.080.010.010000000000000000000

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 (%)7050615651472824232231241473221100883010026334753
Rain chance (%)20152117161311998988576161582111131516

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)3.53.893.812.894.194.54.114.314.5554.696.396.397.117.117.116.816.115.895.895.615.194.5
Wind gust (m/s)7.367.587.425.928.839.118.287.677.147.286.896.177.757.618.698.758.758.697.977.898.448.4787.11
Wind direction (°)SSW 195°SSW 203°SSW 207°SSW 200°SSE 152°S 172°S 169°S 174°S 181°SSW 195°SSW 199°SSW 204°SW 218°SW 223°SW 227°SW 231°SW 233°WSW 237°WSW 240°WSW 238°SW 236°SW 236°SW 236°WSW 238°

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 (%)858079828178797675727273746766656667717680828182

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)755755755754753753752752752752752751751751751751751751751751751751751751

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 Index000000000.20.41.82.83.33.5332.51.60.90.40.1000

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)6.96.96.77.47.67.36.76.67.67.577.35.53.93.33.63.63.63.53.53.53.53.73.9
PM10 (µg/m³)11.711.311.21110.110.21111.711.19.399.18.77.47.97.87.77.17.17.78.16.96.55
Ozone (O₃) (µg/m³)737370766968737984959793767071707072717171727172
NO₂ (µg/m³)11.811.311.310.210.19.68.276.25.83.73.22.72.521.81.71.822.42.73.13.22.8
SO₂ (µg/m³)0.50.60.60.70.80.70.70.70.60.40.40.30.20.20.20.20.20.20.20.20.20.20.20.2
CO (µg/m³)144138141141143143140143146147147146135128122120119124125122124129130132
Sun, Aug 16, 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 12 to 21 °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 45%. 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 12 to 21 °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 45%) 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.