Climate Insights for Joensuu

North Karelia, Finland

Hottest
July
21°C peak69°F peak
Coldest
January
-10°C low14°F low
Wettest
July
105 mm rain4.1 in rain
Best to Visit
June, August
Mild temps & low rain

Climate Overview

The climate in Joensuu is cool. The average annual temperature is 5°C and approximately 781 mm of precipitation falls per year. Joensuu receives a notable amount of rainfall throughout the year, including during its driest month. Joensuu is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, March, when temperatures can drop to -10°C. Joensuu experiences heavy snowfall, typically from January through December.The climate in Joensuu is cool. The average annual temperature is 40°F and approximately 30.7 in of precipitation falls per year. Joensuu receives a notable amount of rainfall throughout the year, including during its driest month. Joensuu is in the Northern Hemisphere. Summer begins at the end of June and lasts through September. The summer months are: July, August, June. The coldest months are January, February, March, when temperatures can drop to 14°F. Joensuu experiences heavy snowfall, typically from January through December.

Temperature

-10°0°10°20°30°JanFebMarAprMayJunJulAugSepOctNovDecJanMax: -5°Average: -8°Min: -10°FebMax: -4°Average: -6°Min: -9°MarMax: 0°Average: -3°Min: -6°AprMax: 5°Average: 2°Min: -2°MayMax: 13°Average: 9°Min: 5°JunMax: 19°Average: 16°Min: 11°JulMax: 21°Average: 18°Min: 14°AugMax: 19°Average: 16°Min: 13°SepMax: 14°Average: 11°Min: 8°OctMax: 6°Average: 5°Min: 3°NovMax: 1°Average: 0°Min: -2°DecMax: -3°Average: -4°Min: -6°
Max
Average
Min
0°F10°F20°F30°F40°F50°F60°F70°FJanFebMarAprMayJunJulAugSepOctNovDecJanMax: 22°FAverage: 18°FMin: 14°FFebMax: 25°FAverage: 21°FMin: 16°FMarMax: 32°FAverage: 27°FMin: 21°FAprMax: 41°FAverage: 35°FMin: 28°FMayMax: 56°FAverage: 49°FMin: 41°FJunMax: 66°FAverage: 60°FMin: 52°FJulMax: 69°FAverage: 64°FMin: 57°FAugMax: 66°FAverage: 61°FMin: 55°FSepMax: 56°FAverage: 52°FMin: 47°FOctMax: 44°FAverage: 41°FMin: 37°FNovMax: 34°FAverage: 31°FMin: 28°FDecMax: 27°FAverage: 24°FMin: 21°F
Max
Average
Min

Temperatures in Joensuu vary considerably across the year, with a 31°C difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 21°C with a mean of 18°C. The coldest month is January, when overnight lows fall to -10°C and the daily average is -8°C. Daily temperature variation is modest, with an average difference of 6°C between highs and lows. The sharpest temperature change occurs between April and May, with a 8°C shift in average temperatures.Temperatures in Joensuu vary considerably across the year, with a 55°F difference between the coldest and warmest months. July is the warmest month, though highs remain moderate at 69°F with a mean of 64°F. The coldest month is January, when overnight lows fall to 14°F and the daily average is 18°F. Daily temperature variation is modest, with an average difference of 10°F between highs and lows. The sharpest temperature change occurs between April and May, with a 14°F shift in average temperatures.

Precipitation

0mm25mm50mm75mm100mm125mm150mmJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 54mmSnow: 49mmFebPrecipitation: 52mmSnow: 47mmMarPrecipitation: 47mmSnow: 39mmAprPrecipitation: 40mmSnow: 18mmMayPrecipitation: 47mmSnow: 5mmJunPrecipitation: 68mmSnow: 0mmJulPrecipitation: 105mmSnow: 0mmAugPrecipitation: 93mmSnow: 0mmSepPrecipitation: 75mmSnow: 0mmOctPrecipitation: 73mmSnow: 8mmNovPrecipitation: 64mmSnow: 32mmDecPrecipitation: 64mmSnow: 54mm
Precipitation
Snow
0in2in4in6in8in10in12in14in16in18in20inJanFebMarAprMayJunJulAugSepOctNovDecJanPrecipitation: 2.1inSnow (in): 19inFebPrecipitation: 2inSnow (in): 19inMarPrecipitation: 1.8inSnow (in): 15inAprPrecipitation: 1.6inSnow (in): 7inMayPrecipitation: 1.8inSnow (in): 2inJunPrecipitation: 2.7inSnow (in): 0inJulPrecipitation: 4.1inSnow (in): 0inAugPrecipitation: 3.7inSnow (in): 0inSepPrecipitation: 3inSnow (in): 0inOctPrecipitation: 2.9inSnow (in): 3inNovPrecipitation: 2.5inSnow (in): 13inDecPrecipitation: 2.5inSnow (in): 21in
Precipitation
Snow (in)

Joensuu is a relatively dry area, receiving approximately 781 mm of precipitation annually, which averages out to around 65 mm per month. The wettest month is July, averaging 105 mm of rainfall. August and September also tend to see above-average precipitation. The driest month is April, with just 40 mm. That's 65 mm less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Joensuu receives heavy snowfall, accumulating around 252cm annually from January through December. The snowiest month is December, with approximately 54cm. Winter travel should account for significant snow cover.Joensuu is a relatively dry area, receiving approximately 30.7 in of precipitation annually, which averages out to around 2.6 in per month. The wettest month is July, averaging 4.1 in of rainfall. August and September also tend to see above-average precipitation. The driest month is April, with just 1.6 in. That's 2.6 in less than July, the wettest month. Precipitation varies noticeably between seasons, with the second half (July to December) of the year generally seeing more rainfall. Joensuu receives heavy snowfall, accumulating around 99in annually from January through December. The snowiest month is December, with approximately 21in. Winter travel should account for significant snow cover.

Wind

0km/h5km/h10km/h15km/hJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 13km/hFebWind Speed: 13km/hMarWind Speed: 13km/hAprWind Speed: 11km/hMayWind Speed: 11km/hJunWind Speed: 12km/hJulWind Speed: 11km/hAugWind Speed: 12km/hSepWind Speed: 13km/hOctWind Speed: 13km/hNovWind Speed: 14km/hDecWind Speed: 13km/h
Wind Speed
0mph5mph10mphJanFebMarAprMayJunJulAugSepOctNovDecJanWind Speed: 8mphFebWind Speed: 8mphMarWind Speed: 8mphAprWind Speed: 7mphMayWind Speed: 7mphJunWind Speed: 7mphJulWind Speed: 7mphAugWind Speed: 7mphSepWind Speed: 8mphOctWind Speed: 8mphNovWind Speed: 8mphDecWind Speed: 8mph
Wind Speed

Joensuu is mildly breezy, with an average annual wind speed of 12km/h. For context, sustained winds below 12km/h are generally light, while anything above 25km/h is considered strong. The windiest month is November, averaging 14km/h, though still comfortable for most outdoor activities. The calmest conditions occur in July, with average winds dropping to 11km/h, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 3km/h between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 13km/h in winter, 12km/h in spring, 11km/h in summer, 13km/h in autumn.Joensuu is moderately windy, with an average annual wind speed of 8mph. For context, sustained winds below 7mph are generally light, while anything above 16mph is considered strong. The windiest month is November, averaging 8mph, noticeable enough to affect lighter outdoor activities. The calmest conditions occur in July, with average winds dropping to 7mph, making it an ideal period for wind-sensitive activities. Wind conditions are fairly consistent throughout the year, varying by only 1mph between the calmest and windiest months. Wind tends to be stronger during winter months, driven by seasonal pressure systems. The seasonal averages break down to 8mph in winter, 7mph in spring, 7mph in summer, 8mph in autumn.

Best Time to Visit

Jan-8°18°F
Feb-6°21°F
Mar-3°27°F
Apr2°35°F
May9°49°F
Jun16°60°F
Jul18°64°F
Aug16°61°F
Sep11°52°F
Oct5°41°F
Nov0°31°F
Dec-4°24°F

The best time to visit Joensuu is during June and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 16°C with modest rainfall averaging 81 mm per month. By contrast, July can be uncomfortably hot with highs reaching 21°C, while January is the coldest period with lows dropping to -10°C. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.The best time to visit Joensuu is during June and August, when the weather is most comfortable for travellers. During these months, average temperatures hover around 60°F with modest rainfall averaging 3.2 in per month. By contrast, July can be uncomfortably hot with highs reaching 69°F, while January is the coldest period with lows dropping to 14°F. Despite being the best months overall, some rain is still likely. Pack a waterproof layer and plan a mix of indoor and outdoor activities.

Monthly Climate Data

The table below shows monthly climate averages for Joensuu based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Celsius (°C). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in centimetres (cm) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in kilometres per hour (km/h). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.The table below shows monthly climate averages for Joensuu based on historical weather data. Min and max temperatures represent typical overnight lows and afternoon highs for each month, shown in degrees Fahrenheit (°F). Precipitation is measured in millimetres (mm) and indicates the average total rainfall per month. Snow is measured in inches (in) and reflects average monthly snowfall accumulation. Wind speed is the average sustained speed in miles per hour (mph). All values are based on averages from over 10 years of historical weather data. The current month is highlighted for quick reference.

Month
Min Temperature
Max Temperature
Wind Speed
Precipitation
Snow
Jan
-10 °C14 °F
-5 °C22 °F
13 km/h8 mph
54 mm2.1 in
49 cm19 in
Feb
-9 °C16 °F
-4 °C25 °F
13 km/h8 mph
52 mm2 in
47 cm19 in
Mar
-6 °C21 °F
0 °C32 °F
13 km/h8 mph
47 mm1.8 in
39 cm15 in
Apr
-2 °C28 °F
5 °C41 °F
11 km/h7 mph
40 mm1.6 in
18 cm7 in
May
5 °C41 °F
13 °C56 °F
11 km/h7 mph
47 mm1.8 in
5 cm2 in
Jun
11 °C52 °F
19 °C66 °F
12 km/h7 mph
68 mm2.7 in
0 cm0 in
Jul
14 °C57 °F
21 °C69 °F
11 km/h7 mph
105 mm4.1 in
0 cm0 in
Aug
13 °C55 °F
19 °C66 °F
12 km/h7 mph
93 mm3.7 in
0 cm0 in
Sep
8 °C47 °F
14 °C56 °F
13 km/h8 mph
75 mm3 in
0 cm0 in
OctCurrent
3 °C37 °F
6 °C44 °F
13 km/h8 mph
73 mm2.9 in
8 cm3 in
Nov
-2 °C28 °F
1 °C34 °F
14 km/h8 mph
64 mm2.5 in
32 cm13 in
Dec
-6 °C21 °F
-3 °C27 °F
13 km/h8 mph
64 mm2.5 in
54 cm21 in