Climate and monthly weather forecast
Lappeenranta, Finland

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The climate of Lappeenranta

In geographic terms, Lappeenranta rests within the climatic sphere designated as a Humid Continental type under the Köppen climate classification, specifically denoted as Dfb without a dry season and hosting warm summers. Over the year, Lappeenranta weather patterns are characterized by a remarkable shift from relatively mild summers to cold, snowy winters.

Temperature fluctuations in Lappeenranta are significant. Average temperatures in the colder months hit their lowest in January at -8.6°C (16.5°F) and peak at around 22.3°C (72.1°F) in July. Meanwhile, humidity levels depict a year-round pattern of high readings, with February recording the highest at 95% and May the lowest at 66%. Monthly precipitation levels generally exhibit a steady increase from the start of the year, from 41mm (1.61") in January, peaking at 53mm (2.09") in August before descending back to 51mm (2.01") in December. The number of rainy days follows a slightly similar trend, increasing from 5.3 days in January to a peak of 18.1 days in July.

Uniquely, Lappeenranta encounters significant snowfall in winter, with maximum snowfall levels recorded in January at 262mm (10.31") and it reduces to 235mm (9.25") by December. However, during summer months, no snowfall is reported. The amount of daylight varies throughout the year, with longer average hours from April to September reaching peak daylight length of about 19.1 hours in June. During winter months the daylight dwindles significantly with December only enjoying an average of 5.7 daylight hours.

The best time to visit Lappeenranta

Judging by weather metrics available, the most suitable period to visit Lappeenranta falls between late spring and early autumn. From May to September, Lappeenranta experiences relatively warmer temperatures ranging between 15.1°C (59.2°F) to 22.3°C (72.1°F). During this span, the city enjoys increased daylight hours, averaging between 14.7 hours in April and 18.3 hours by July. Visitors during these months can anticipate an optimal climate for outdoor pursuits and sightseeing.

The worst time to visit Lappeenranta

Conversely, periods from late autumn to early spring, precisely from November to March, might prove quite challenging for visitors not accustomed to harsh winter climates. With temperatures dipping to a low of -8.6°C (16.5°F) in January and snowfall escalating to a high of 262mm (10.31") in January, preparations for the severe cold would be necessary for any adventuring in these months.

Spring weather in Lappeenranta

As Lappeenranta transition from the clasp of winter into spring, ambient temperatures begin a steady ascent to an average high of 15.1°C (59.2°F) in May. In this season, rainfall and daylight hours rise concurrently; rainfall varies from 32mm (1.26") in April to 38mm (1.5") in May while daylight spans from 14.7 hours in March to 17.5 hours by May.

Summer weather in Lappeenranta

In Lappeenranta, summer months of June to August reveal a pleasant climate with the highest temperatures tipping at an average of 22.3°C (72.1°F) in July. The city experiences null snowfall, maximum daylight of 19.1 hours in June, and considerable rainfall peaking at 53mm (2.09") in August.

Autumn weather in Lappeenranta

The autumn months in Lappeenranta usher in a transitional period as weather patterns slowly revert towards winter conditions. Temperatures gradually fall from 14.7°C (58.5°F) in September to 2.5°C (36.5°F) in November. The daylight hours are also reduced drastically from 12.9 hours in September to 7.3 hours in November.

Winter weather in Lappeenranta

Winters in Lappeenranta can be quite severe with temperatures plummeting to their lowest readings of the year. In the coldest months of December to February, the city experiences average lows ranging from -1.3°C (29.7°F) to -8.6°C (16.5°F). Alongside the chill, December reports high levels of snowfall at 235mm (9.25"), while daylight hours dwindling to an average minimum of 5.7 hours.

Weather in January

The chill of winter is evident in Lappeenranta, Finland, with January displaying its expected frigid nature. The high amount of snowfall of 262mm (10.31"), along with low visibility of only 5km (3.1mi), can make it challenging for outdoor activities. Weather in January »

Weather in February

As the calendar turns to February, the climate in Lappeenranta remains unforgiving and bitterly cold while seeing a modest reduction in snowfall to a still hefty 254mm (10"). The high levels of humidity with a reading of 95%, paired with low temperatures, could make the cold feel even more penetrating, leading to a chill that is hard to shake off. Weather in February »

Weather in March

March in Lappeenranta sees the thawing of winter’s sharpest bite, with temperatures rising marginally and snowfall diminishing to 229mm (9.02"). Nevertheless, the cold lingers in the air, ensuring winter coats continue to be a necessary wardrobe item. Weather in March »

Weather in April

April displays the telltale signs of an awakening to spring in Lappeenranta. Although the weather is a stark leap from the rigid winter conditions, snowfall can still be expected, albeit at a significantly reduced amount of 61mm (2.4"). Weather in April »

Weather in May

As May approaches, Lappeenranta truly steps into spring with temperatures noticeably becoming more pleasant. This warmer weather contributes to the last vestiges of winter, as indicated by the reduced snowfall to a low of 28mm (1.1"). Weather in May »

Weather in June

The arrival of June marks the official start of summer in Lappeenranta, with increasing daytime temperatures and no snow is seen throughout the city. The combination of longer daylight hours and the highest UV index of 5 makes the city vibrant and attractive for tourists. Weather in June »

Weather in July

July stands as the peak of summer in Lappeenranta, showcasing the city's warmest weather with temperatures reaching up to a high of 22.3°C (72.1°F). This enticing warmth complements the bounty of sunshine perfectly, creating an idyllic atmosphere for light-filled adventures. Weather in July »

Weather in August

As August rolls around, Lappeenranta's weather exhibit signs of the midsummer phase, with slightly lower temperatures than July, although it retains much of the summer warmth. This month enjoys the continuation of clear skies, longer sunshine hours, and higher daylight durations. Weather in August »

Weather in September

September brings a transition towards fall in Lappeenranta, with decreased temperatures and the return of minimal snowfall after months of no snow. The cool gusts of wind, paired with shrinking daylight hours, begin to signal the onset of autumn. Weather in September »

Weather in October

October in Lappeenranta is characterised by a full immersion into autumn, experiencing a substantial drop in temperatures and a rise in snowfall with 60mm (2.36") registered. A blend of autumnal shades paints the city, contributing to the captivating scenery that unfolds. Weather in October »

Weather in November

The chill of winter starts settling in Lappeenranta during November. There is a drastic increase in snowfall up to 99mm (3.9"), preparing the city for the upcoming harsh Finnish winter. The diminishing daylight hours get replaced by longer stretches of darkness, adding to the winter prelude. Weather in November »

Weather in December

By the time December arrives, Lappeenranta, Finland, is fully embraced in its winter season, registering a significant increase in snowfall up to 235mm (9.25"). This month takes on the role of a winter treasure trove, transforming the city into a pristine white landscape. Weather in December »

Frequently asked questions

What are the coldest months in Lappeenranta?

During the coldest month in Lappeenranta, January, temperatures average a high of -4.7°C (23.5°F) and a low of -8.6°C (16.5°F).

How much does it rain in Lappeenranta?

In Lappeenranta, Finland, during the entire year, the rain falls for 150.8 days and collects up to 525mm (20.67") of precipitation.

When does it snow in Lappeenranta?

Months with snowfall are January through May, October through December.

When does it snow the most in Lappeenranta?

January is the month with the most snowfall. Snow falls for 22.8 days and accumulates 262mm (10.31") of snow.

How many days does it snow in Lappeenranta?

In Lappeenranta, Finland, during the entire year, snow falls for 116.2 days and aggregates up to 1228mm (48.35") of snow.

What is the month with the lowest UV index in Lappeenranta?

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index in Lappeenranta.

What is the most humid month in Lappeenranta?

The most humid month is February, with an average relative humidity of 95%.

What is the driest month in Lappeenranta?

April is the month with the least rainfall in Lappeenranta, Finland. Rain falls for 13.9 days and accumulates 32mm (1.26") of precipitation.

What is the least humid month in Lappeenranta?

With an average relative humidity of 66%, May is the least humid month.

When it does not snow in Lappeenranta?

In Lappeenranta, snow does not fall in June through September.

When are the longest days in Lappeenranta?

With an average of 19h and 6min of daylight, June has the longest days of the year.

What month has the most sunshine in Lappeenranta?

With an average of 11.7h of sunshine, June has the most sunshine of the year.

What are the months with the highest UV index in Lappeenranta?

June and July, with an average maximum UV index of 5, are months with the highest UV index.

What part of the year is the hottest in Lappeenranta?

In Lappeenranta, July is the warmest month, with temperatures averaging a high of 22.3°C (72.1°F) and a low of 13.3°C (55.9°F).

What is the wettest month in Lappeenranta?

August is the month with the most rainfall in Lappeenranta. Rain falls for 16.4 days and accumulates 53mm (2.09") of precipitation.

When is Daylight Saving Time (DST) in Lappeenranta?

On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends in Lappeenranta, Finland, and the time zone changes from EEST to EET. The next Daylight Saving Time starts on Sunday, 30. March 2025, at 03:00, and the time zone reverts from EET to EEST.

What is the month with the shortest days in Lappeenranta?

The month with the shortest days in Lappeenranta, Finland, is December, with an average of 5h and 42min of daylight.

What is the month with the least sunshine in Lappeenranta?

December has the least sunshine of the year, with an average of 0.9h of sunshine.

Average temperature
Lappeenranta, Finland

Average temperature - Lappeenranta, Finland

The warmest month (with the highest average high temperature) is July (22.3°C).
The month with the lowest average high temperature is January (-4.7°C).

The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-8.6°C).

Average pressure
Lappeenranta, Finland

Average pressure - Lappeenranta, Finland

The month with the highest atmospheric pressure is May (1014.8mbar).
The month with the lowest atmospheric pressure is December (1008.9mbar).

Average wind speed
Lappeenranta, Finland

Average wind speed - Lappeenranta, Finland

The windiest month (with the highest average wind speed) is December (13.7km/h).
The calmest months (with the lowest average wind speed) are July and August (10.6km/h).

Average humidity
Lappeenranta, Finland

Average humidity - Lappeenranta, Finland

The month with the highest relative humidity is February (95%).
The month with the lowest relative humidity is May (66%).

Average rainfall
Lappeenranta, Finland

Average rainfall - Lappeenranta, Finland

The wettest month (with the highest rainfall) is August (53mm).
The driest month (with the least rainfall) is April (32mm).

Average rainfall days
Lappeenranta, Finland

Average rainfall days - Lappeenranta, Finland

The month with the highest number of rainy days is July (18.1 days).
The month with the least rainy days is February (4.3 days).

Average snowfall
Lappeenranta, Finland

Average snowfall - Lappeenranta, Finland

The month with the highest snowfall is January (262mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days
Lappeenranta, Finland

Average snowfall days - Lappeenranta, Finland

The month with the highest number of snowfall days is January (22.8 days).
The months with the least snowfall days are June, July and August (0 days).

Average daylight / Average sunshine
Lappeenranta, Finland

Average daylight / Average sunshine - Lappeenranta, Finland

The month with the longest days is June (Average daylight: 19h and 6min).
The month with the shortest days is December (Average daylight: 5h and 42min).

The month with the most sunshine is June (Average sunshine: 11h and 42min).
The month with the least sunshine is December (Average sunshine: 0h and 54min).

Average sunshine days
Lappeenranta, Finland

Average sunshine days - Lappeenranta, Finland

The month with the most sunshine days is May (14.3 days).
The month with the least sunshine days is December (4.7 days).

Average UV index
Lappeenranta, Finland

Average UV index - Lappeenranta, Finland

The months with the highest UV index are June and July (UV index 5).
The months with the lowest UV index are January, February, March, November and December (UV index 1).

Average visibility
Lappeenranta, Finland

Average visibility - Lappeenranta, Finland

The months with the highest visibility are May, June, July and August (9km).
The months with the lowest visibility are January and February (5km).

Lappeenranta, Finland

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