Joensuu monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at Joensuu
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | -8.1 | -7.1 | -1.1 | 5.1 | 13.5 | 18.9 | 21 | 18.2 | 12.2 | 5.9 | -0.3 | -5.1 |
| °F | 17.4 | 19.2 | 30 | 41.1 | 56.4 | 66 | 69.7 | 64.8 | 53.9 | 42.6 | 31.5 | 22.9 |
Please note: these are the average peak daytime temperatures (usually around mid-afternoon) so do not show daytime / night highs and lows. To see the daily range of temperatures have a look at the temperature max / min chart below.
Average rainfall & rainy days
The graph below shows the average rainfall and number of rainy days per month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| mm | 37 | 29 | 31 | 34 | 35 | 58 | 73 | 82 | 65 | 60 | 54 | 46 |
| inches | 1.4 | 1.1 | 1.2 | 1.3 | 1.4 | 2.3 | 2.9 | 3.2 | 2.6 | 2.4 | 2.1 | 1.8 |
| Rainy days | 22 | 18 | 17 | 15 | 12 | 14 | 15 | 17 | 17 | 19 | 23 | 24 |
Average annual rainfall in Joensuu: 697.033mm (274.4 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in Joensuu
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 1.2 | 2.7 | 4.5 | 6.4 | 4.4 | 0 | 4.7 | 7.3 | 4.3 | 2.4 | 1 | 0.8 |
Day / night temperatures
The graph below shows the daily range of temperatures for each month.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Min °C | -15.5 | -14.7 | -9.7 | -3.1 | 3 | 9.1 | 11.6 | 10 | 5.3 | 0.8 | -5.1 | -11.7 |
| Max °C | -8 | -6.9 | -0.9 | 5.3 | 13.8 | 19.2 | 21.2 | 18.5 | 12.4 | 6 | -0.2 | -4.9 |
| Min °F | 4.2 | 5.5 | 14.5 | 26.5 | 37.4 | 48.3 | 52.9 | 49.9 | 41.5 | 33.4 | 22.9 | 10.9 |
| Max °F | 10.9 | 12.6 | 22.5 | 34 | 47.1 | 57.4 | 61.5 | 57.6 | 47.8 | 38.1 | 27.3 | 17.1 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 0.9 | -0 | -0.1 | 0.8 | 3.6 | 8 | 12.5 | 13.7 | 11.5 | 7.9 | 4.9 | 2.5 |
| °F | 33.6 | 32 | 31.8 | 33.5 | 38.5 | 46.4 | 54.4 | 56.7 | 52.7 | 46.2 | 40.8 | 36.5 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 12 | 12 | 12 | 12 | 12 | 12 | 11 | 11 | 12 | 13 | 13 | 12 |
| mph | 7 | 7 | 8 | 8 | 7 | 7 | 7 | 7 | 7 | 8 | 8 | 7 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
Relative humidity
The graph below shows the average relative humidity.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 88% | 86% | 82% | 73% | 64% | 65% | 70% | 78% | 84% | 86% | 90% | 90% |
Other monthly averages
Joensuu weather stats
| Hottest month: | July | 21°C 69.8°F |
|---|---|---|
| Driest month: | February | 29mm 1.1ins |
| Sunniest month: | May | 4.4hrs |
| Coldest month: | January | -8.1°C 17.4°F |
| Wettest month: | August | 82mm 3.2ins |
| Warmest sea: | August | 13.7°C 56.7°F |
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