Climate and monthly weather forecast
Joensuu, Finland

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The climate of Joensuu

Notably, Joensuu falls within the Dfc zone of the Köppen climate classification. This signifies a subarctic climate with a severe winter, cool summer, and no dry season. Located in the northeastern part of Finland, this city experiences significant variations in weather parameters throughout the year.

Looking at the year-round averages, Joensuu witnesses minimum temperature between -10.4°C (13.3°F) in January and 12.5°C (54.5°F) in July. Conversely, the maximum temperature ranges from -6.4°C (20.5°F) in January to 21.2°C (70.2°F) in July. An assessment of recorded temperatures showcases stark differences in climate throughout the year, presenting a sharp contrast between the chilling winters and cool summers.

The region records the maximum amount of rainfall in July, with an average precipitation of 66mm (2.6"). However, the wettest periods stretch from May to August, characterized by increased rainfall days varying from 16.7 in June to 16.9 in August. In terms of humidity, figures peak during winter months at 96% in February and drop to a low of 68% from May to June.

Noteworthy exclusivities of Joensuu's climate include a staggeringly high average snowfall of 202mm (7.95") in March and December, with a notable absence of snowfall from June to August. Moreover, daylight duration in this region follows a distinct pattern that ranges from just 6.1 hours in January to a robust 19.9 hours in June.

The best time to visit Joensuu

Evaluating climate parameters, the period from May to August appears to be an ideal time to visit Joensuu. During these months, visitors can enjoy moderate temperatures from 13.3°C (55.9°F) to 21.2°C (70.2°F), coupled with an average daily sunshine duration between 9.8 hours in May and 12 hours in June. Additionally, the month of July usually signifies the rainiest period in Joensuu with an average of 66mm (2.6") spread across 17.3 days. Despite the increased rainfall, this time is preferred due to the mild temperatures and long daylight hours.

The worst time to visit Joensuu

Considering the severe winter conditions, January and February represent the least favorable months to visit Joensuu. During these months, the city experiences average maximum temperatures below freezing, at -6.4°C (20.5°F) and -5.1°C (22.8°F) respectively. Noteworthy during this period is the high relative humidity above 95%, along with a significant amount of snowfall averaging 181mm (7.13") in January and 182mm (7.17") in February.

Spring weather in Joensuu

Spring, defined as March, April, and May in Joensuu, presents gradual increase in temperature. March begins with an average of -1.6°C (29.1°F), while May experiences a considerable warmth of 13.3°C (55.9°F). Snow begins to recede in March and is replaced by rain in April, with an average precipitation of 26mm (1.02") spread across 11.2 days. May promises bountiful sunshine hours, reaching an average of 9.8 hours per day.

Summer weather in Joensuu

The summer season in Joensuu, characterized by the months from June to August, is relatively cool but pleasant. During this period, temperatures peak at 21.2°C (70.2°F) in July, with the lowest average recorded at 17.4°C (63.3°F) in June. Rainfall is frequent during summer, with a high precipitation rate of 66mm (2.6") in July. However, the extended daylight period compensates for the rainfall, stretching up to 19.9 hours in June.

Autumn weather in Joensuu

During the Autumn months, between September and November, Joensuu witnesses a significant drop in temperature, from 13.5°C (56.3°F) in September to a chilling 1.2°C (34.2°F) in November. The rainfall averages from 39mm (1.54") to 37mm (1.46"), providing relatively wet conditions. Daylight hours decrease gradually throughout Autumn, with average sunshine duration dwindling from 6.3 hours in September to merely 2 hours in November.

Winter weather in Joensuu

Winter in Joensuu, spanning December to February, is incredibly severe. December commences the winter season with a maximum temperature of -2.9°C (26.8°F), while January and February reel under freezing temperatures. Snowfall during these months is immense, averaging 202mm (7.95") in December. The shortest daylight period is in December, amounting to a mere 5.1 hours. Concurrently, these months record the least sunshine duration, with December seeing just 0.7 hours daily.

Weather in January

January presents the most challenging weather extremes in Joensuu, Finland. Even though the short daylight hours, averaging 6.1h a day, can be daunting, a serene beauty often underlies the frosty conditions. This month sees some of the lowest temperatures of the year, with extremes ranging from -6.4°C (20.5°F) to -10.4°C (13.3°F). Weather in January »

Weather in February

The frigid winter continues into February with similar conditions as January. Snow fills the air, layering the grounds of Joensuu and embracing the city with its winter charm. The temperatures see a slight upturn with lows of -10.1°C (13.8°F) and highs of -5.1°C (22.8°F). Weather in February »

Weather in March

March signifies the start of a meteorological transition in Joensuu. There is a noticeable climb in temperature; however, the mean values still hover in the negative. The snowfall remains consistent, but the days are now longer with increasing daylight hours. Weather in March »

Weather in April

April brings a breath of freshness, with the ever slight warmth cutting through the past wintered months. The average temperature rises above freezing for the first time since the onset of winter, fluctuating from -1.6°C (29.1°F) to 4.1°C (39.4°F). Weather in April »

Weather in May

May is a time of renewal in Joensuu, as winter finally surrenders to spring. A radiant sun takes over the sky, leading to a considerable increase in temperature. The warmth breathes life into the city, coaxing flowers to bloom and trees to flourish. Weather in May »

Weather in June

Come June, Joensuu basks under the summer sun. Humidity wanes, and sun-baked days replace the chilling breeze of the previous months. The city now enjoys the lengthiest daylight and sunshine hours, with temperatures pushing to a gratifying 17.4°C (63.3°F). Weather in June »

Weather in July

July is the heart of summer in Joensuu, with comfortable temperatures and plenty of sunshine. The landscape is awash with a lush green, and the city is at its busiest with summer events and activities taking center stage. A heightened UV index of 5 prompts the need for protective measures during midday sun. Weather in July »

Weather in August

As August rolls in, Joensuu still clings onto the summer vibe. A mild decline in temperature is noticed, though the weather remains warm and mostly sunny. Displaying the highest rainfall of the year at 57mm (2.24"), intermittent showers bring a delightful change. Weather in August »

Weather in September

September signals the onset of autumn in Joensuu. Trees begin to shed their leaves, adding a spectrum of colours to the cityscape, despite a marginal dip in temperatures. Conditions remain comfortable, with the daylight hours reducing further. Weather in September »

Weather in October

October witnesses a transformation in Joensuu's weather. Temperatures plunge, declaring the onset of a fresh yet frosty season. Fall foliage paints the city in hues of yellow, orange, and red, creating a visually delightful contrast against the ever-shortening daylight hours. Weather in October »

Weather in November

November is when the first signs of the approaching winter are felt in Joensuu. As the colder air takes hold, temperatures descend, with averages ranging between -1.5°C (29.3°F) to 1.2°C (34.2°F). Wintry days begin to form, with snowfall bringing a frosty overtone to the cityscape. Weather in November »

Weather in December

December ushers in the heart of winter in Joensuu. Festive lights adorn the snow-clad city, creating a magical scape against the early falling darkness. Despite an increase in snowfall up to 202mm (7.95"), the city maintains its charm as locals and tourists alike partake in winter festivities. Weather in December »

Frequently asked questions

What time of the year is the coldest in Joensuu?

Joensuu's temperature records reveal January as the coldest month, marked by average highs of -6.4°C (20.5°F) and lows of -10.4°C (13.3°F).

How much does it rain in Joensuu?

In Joensuu, during the entire year, the rain falls for 127.5 days and collects up to 461mm (18.15") of precipitation.

When does it snow in Joensuu?

January through June, September through December are months with snowfall in Joensuu, Finland.

How many days does it snow in Joensuu?

Throughout the year, in Joensuu, Finland, there are 120.8 snowfall days, and 1101mm (43.35") of snow is accumulated.

When is the lowest UV index in Joensuu?

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

What is the most humid month in Joensuu?

February is the most humid month, with an average relative humidity of 96%.

What is the snowiest month in Joensuu?

The months with the most snowfall are March and December, with an average 202mm (7.95") of accumulated snow.

What is the driest month in Joensuu?

April is the month with the least rainfall. Rain falls for 11.2 days and accumulates 26mm (1.02") of precipitation.

What is the least humid month in Joensuu?

May and June, with an average relative humidity of 68%, are the least humid months.

When are the longest days in Joensuu?

With an average of 19h and 54min of daylight, June has the longest days of the year in Joensuu, Finland.

What month has the most sunshine in Joensuu?

With an average of 12h of sunshine, June has the most sunshine of the year in Joensuu.

What time of the year is the hottest in Joensuu?

Temperature readings reach their annual highs in July, averaging 21.2°C (70.2°F) and a minimum average of 12.5°C (54.5°F).

What is the wettest month in Joensuu?

The month with the most rainfall in Joensuu is July, when the rain falls for 17.3 days and typically aggregates up to 66mm (2.6") of precipitation.

When it does not snow in Joensuu?

July and August are months without snowfall in Joensuu, Finland.

What is the month with the highest UV index in Joensuu?

The month with the highest UV index in Joensuu is July, with an average maximum UV index of 5.

When is Daylight Saving Time (DST) in Joensuu?

On Sunday, 27. October 2024, at 04:00, Daylight Saving Time ends in Joensuu, 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 Joensuu?

The month with the shortest days is December, with an average of 5h and 6min of daylight.

What is the month with the least sunshine in Joensuu?

The month with the least sunshine in Joensuu is December, with an average of 0.7h of sunshine.

Average temperature
Joensuu, Finland

Average temperature - Joensuu, Finland

The warmest month (with the highest average high temperature) is July (21.2°C).
The month with the lowest average high temperature is January (-6.4°C).

The month with the highest average low temperature is July (12.5°C).
The coldest month (with the lowest average low temperature) is January (-10.4°C).

Average pressure
Joensuu, Finland

Average pressure - Joensuu, Finland

The month with the highest atmospheric pressure is May (1014.7mbar).
The month with the lowest atmospheric pressure is December (1008.6mbar).

Average wind speed
Joensuu, Finland

Average wind speed - Joensuu, Finland

The windiest months (with the highest average wind speed) are November and December (13.8km/h).
The calmest month (with the lowest average wind speed) is July (10.2km/h).

Average humidity
Joensuu, Finland

Average humidity - Joensuu, Finland

The month with the highest relative humidity is February (96%).
The months with the lowest relative humidity are May and June (68%).

Average rainfall
Joensuu, Finland

Average rainfall - Joensuu, Finland

The wettest month (with the highest rainfall) is July (66mm).
The driest month (with the least rainfall) is April (26mm).

Average rainfall days
Joensuu, Finland

Average rainfall days - Joensuu, Finland

The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is February (2 days).

Average snowfall
Joensuu, Finland

Average snowfall - Joensuu, Finland

The months with the highest snowfall are March and December (202mm).
The months with the least snowfall are July and August (0mm).

Average snowfall days
Joensuu, Finland

Average snowfall days - Joensuu, Finland

The month with the highest number of snowfall days is December (22.3 days).
The months with the least snowfall days are July and August (0 days).

Average daylight / Average sunshine
Joensuu, Finland

Average daylight / Average sunshine - Joensuu, Finland

The month with the longest days is June (Average daylight: 19h and 54min).
The month with the shortest days is December (Average daylight: 5h and 6min).

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 0h and 42min).

Average sunshine days
Joensuu, Finland

Average sunshine days - Joensuu, Finland

The month with the most sunshine days is May (15 days).
The month with the least sunshine days is February (7.7 days).

Average UV index
Joensuu, Finland

Average UV index - Joensuu, Finland

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

Average visibility
Joensuu, Finland

Average visibility - Joensuu, 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).

Joensuu, Finland

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