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Helsinki weather

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EuropeanECMWF
0°
Overcast
Feels -4° · Wind 6 mph · Humidity 94%
AmericanNOAA GFS
0°
Overcast
Feels -3° · Wind 4 mph · Humidity 88%
GermanDWD ICON
1°
Overcast
Feels -3° · Wind 6 mph · Humidity 88%

Latest for Helsinki: European (ECMWF): 0° Overcast · American (NOAA GFS): 0° Overcast · German (DWD ICON): 1° Overcast.

The weather map: all three models at once

European, American, German side by side around Helsinki and nearby towns.Live rain radar →
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Hourly forecast: next 14 hours

consensus of the three models

Rain in the next 24 hours, model by model

each model's own hourly precipitation, side by side

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10-day forecast, out to 14 days

where the models agree, and where they split

Heading to Helsinki? Helsinki, Finland, sits at 60.2°N in a cool, high-latitude climate zone. Before you lock in outdoor plans, compare how the three global models - European (ECMWF), American (GFS) and German (ICON) - forecast Helsinki right now. Where they agree you can trust it; the days they split are exactly when a single weather app is least reliable. For a city break, the rain hours below tell you which days to plan indoors.

Best time to visit Helsinki

The most comfortable time to visit Helsinki is usually June and July, when daytime highs sit in the pleasant 16-26°C range and the heaviest August rain is behind you.

Helsinki weather by month

what to expect in Helsinki through the year, 1991-2020 normals, Helsinki Kaisaniemi (WMO)

Here is Helsinki's typical weather in each month: the average daytime high and overnight low in °C, how each month feels, and the wettest month marked. Use it to plan any trip to Helsinki by season.

Jan
-1°
-6°
Cold
Feb
-1°
-6°
Cold
Mar
2°
-4°
Cold
Apr
8°
1°
Cool
May
15°
6°
Mild
Jun
19°
11°
Mild
Jul
22°
14°
Warm
Aug
20°
14°
Mild
Wettest
Sep
15°
9°
Mild
Oct
9°
4°
Cool
Nov
4°
0°
Cold
Dec
1°
-3°
Cold

Helsinki compared with London

30-year averages: daytime highs month by month, rain and sunlight

Cooler through the year

−7°C

average daytime high: Helsinki 9°C, London 16°C

Rain over a year

+6%

Helsinki 653 mm, London 615 mm

Sunlight vs a clear sky

63% vs 63%

solar energy reaching the ground as a share of a cloudless day, averaged over the year (not sunshine hours)

HelsinkiLondonaverage daytime high, °C, 1991-2020
January, London: 9°CJanuary, Helsinki: -1°C (−10°C)February, London: 9°CFebruary, Helsinki: -1°C (−10°C)March, London: 12°CMarch, Helsinki: 2°C (−10°C)April, London: 15°CApril, Helsinki: 8°C (−7°C)May, London: 18°CMay, Helsinki: 15°C (−3°C)June, London: 21°CJune, Helsinki: 19°C (−2°C)July, London: 24°CJuly, Helsinki: 22°C (−2°C)August, London: 23°CAugust, Helsinki: 20°C (−3°C)September, London: 20°CSeptember, Helsinki: 15°C (−5°C)October, London: 16°COctober, Helsinki: 9°C (−7°C)November, London: 12°CNovember, Helsinki: 4°C (−8°C)December, London: 9°CDecember, Helsinki: 1°C (−8°C)

On 30-year averages Helsinki runs 7°C cooler than London, with every month between −10°C and −2°C. Over a year it gets 6% more rain than London.

Month by month in numbers
MonthHelsinkiLondonDifferenceSunlight, HelsinkiSunlight, London
January-1°C9°C−10°C52%58%
February-1°C9°C−10°C56%59%
March2°C12°C−10°C68%63%
April8°C15°C−7°C71%67%
May15°C18°C−3°C72%65%
June19°C21°C−2°C69%66%
July22°C24°C−2°C72%67%
August20°C23°C−3°C71%66%
September15°C20°C−5°C65%68%
October9°C16°C−7°C57%62%
November4°C12°C−8°C49%59%
December1°C9°C−8°C54%58%

Daytime highs and lows on this page are 1991-2020 averages. Helsinki: station normals from Helsinki Kaisaniemi (WMO), rain included. London: station normals from London (WMO), rain included. Sunlight vs a clear sky is NASA POWER's long-term average of the solar energy reaching the ground as a share of a cloudless day; it compares cloudiness and is not a count of sunshine hours. London stands in for the UK here; other cities have their own climate tables.

Common questions

When is the best time to visit Helsinki?
The most comfortable time to visit Helsinki is usually June and July, when daytime highs sit in the pleasant 16-26°C range and the heaviest August rain is behind you.
Will it rain in Helsinki during my trip?
Rain is where forecasts disagree most. Instead of trusting one app, the comparison above lines up the European, American and German models for Helsinki - check your dates and look for the days they agree; those are the ones you can plan around.
Which forecast is most accurate for Helsinki?
For destinations abroad we compare three open global models (ECMWF, GFS and ICON) and show you where they disagree, so you can judge the confidence yourself.
How much warmer is Helsinki than London?
On 30-year averages (1991-2020) the daytime high in Helsinki is about 7°C cooler than in London (9°C against 16°C), with the monthly gap between -10°C and -2°C.

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