Mänttä monthly weather averages
Average daytime temperature
The bar chart below shows the average monthly peak daytime temperatures at Mänttä
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | -6.5 | -5.4 | -0.1 | 5.9 | 14.4 | 19.5 | 20.8 | 18.5 | 12.3 | 6.5 | 0.5 | -3.9 |
| °F | 20.3 | 22.2 | 31.9 | 42.7 | 57.9 | 67.1 | 69.4 | 65.3 | 54.2 | 43.7 | 32.9 | 25.1 |
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 | 34 | 24 | 29 | 32 | 37 | 56 | 73 | 82 | 66 | 55 | 52 | 41 |
| inches | 1.3 | 0.9 | 1.2 | 1.3 | 1.5 | 2.2 | 2.9 | 3.2 | 2.6 | 2.2 | 2 | 1.6 |
| Rainy days | 21 | 16 | 16 | 14 | 11 | 12 | 15 | 16 | 17 | 18 | 21 | 21 |
Average annual rainfall in Mänttä: 667.966mm (263 inches)
Average daily sunshine
The bar chart below shows the average daily sunshine hours in Mänttä
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 0.6 | 1.8 | 3.6 | 5.6 | 8.6 | 0 | 4.1 | 6.6 | 4.1 | 2.4 | 0.9 | 0.5 |
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 | -13.3 | -13 | -8.6 | -2.8 | 3 | 8.3 | 10.6 | 9.3 | 5.1 | 1.2 | -4.2 | -10.1 |
| Max °C | -6.4 | -5.3 | 0.1 | 6.2 | 14.7 | 19.8 | 21.1 | 18.7 | 12.5 | 6.7 | 0.6 | -3.7 |
| Min °F | 8.2 | 8.7 | 16.6 | 27.1 | 37.3 | 46.9 | 51 | 48.7 | 41.2 | 34.1 | 24.4 | 13.8 |
| Max °F | 14.4 | 15.6 | 24.4 | 35.1 | 47.8 | 57.2 | 60.4 | 57.2 | 47.8 | 39 | 28.8 | 19.6 |
Sea temperature
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 1.3 | 0.2 | 0 | 1 | 3.9 | 8.7 | 14.1 | 15.5 | 13 | 9.2 | 5.9 | 3.2 |
| °F | 34.4 | 32.4 | 32 | 33.9 | 39 | 47.6 | 57.4 | 59.9 | 55.3 | 48.6 | 42.6 | 37.7 |
Wind speed
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 10 | 10 | 11 | 11 | 11 | 11 | 10 | 10 | 11 | 12 | 11 | 10 |
| mph | 6 | 6 | 7 | 7 | 7 | 7 | 6 | 6 | 7 | 7 | 7 | 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% | 87% | 81% | 73% | 64% | 64% | 71% | 79% | 85% | 87% | 91% | 90% |
Other monthly averages
Mänttä weather stats
| Hottest month: | July | 20.8°C 69.4°F |
|---|---|---|
| Driest month: | February | 24mm 0.9ins |
| Sunniest month: | June | 0hrs |
| Coldest month: | January | -6.5°C 20.3°F |
| Wettest month: | August | 82mm 3.2ins |
| Warmest sea: | August | 15.5°C 59.9°F |
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