The bar chart below shows the average monthly peak daytime temperatures at Helsinki
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | -2.4 | -2.7 | 0.4 | 5.6 | 12.3 | 17.4 | 19.5 | 18.4 | 13.7 | 8.7 | 3.7 | -0 |
°F | 27.7 | 27.1 | 32.6 | 42 | 54.1 | 63.3 | 67.1 | 65.1 | 56.6 | 47.7 | 38.7 | 32 |
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.
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 | 25 | 27 | 33 | 30 | 38 | 61 | 75 | 64 | 59 | 62 | 48 |
inches | 1.5 | 1 | 1.1 | 1.3 | 1.2 | 1.5 | 2.4 | 2.9 | 2.5 | 2.3 | 2.4 | 1.9 |
Rainy days | 18 | 15 | 14 | 12 | 9 | 10 | 13 | 14 | 16 | 17 | 19 | 19 |
The bar chart below shows the average daily sunshine hours in Helsinki
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 0.7 | 1.8 | 3.6 | 5.6 | 8.8 | 10.7 | 9.3 | 7 | 4.4 | 2.7 | 1.2 | 0.7 |
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 | -7.6 | -8.4 | -5.7 | -0.5 | 4.4 | 9.6 | 12.4 | 11.9 | 8.2 | 4.4 | -0.2 | -4.7 |
Max °C | -2.3 | -2.6 | 0.5 | 5.7 | 12.5 | 17.6 | 19.7 | 18.6 | 13.8 | 8.9 | 3.8 | 0.1 |
Min °F | 18.4 | 16.9 | 21.7 | 31.1 | 39.8 | 49.3 | 54.2 | 53.3 | 46.8 | 39.8 | 31.6 | 23.5 |
Max °F | 23.2 | 22.1 | 27.3 | 36.7 | 47.1 | 56.5 | 60.8 | 59.4 | 51.8 | 43.9 | 35.2 | 27.9 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 2.9 | 1.6 | 1.5 | 2.5 | 5.3 | 10.2 | 15.6 | 16.9 | 13.9 | 10 | 6.8 | 4.5 |
°F | 37.2 | 35 | 34.6 | 36.5 | 41.6 | 50.4 | 60.1 | 62.4 | 57 | 50 | 44.3 | 40.1 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 19 | 18 | 18 | 17 | 16 | 16 | 15 | 15 | 18 | 20 | 21 | 21 |
mph | 12 | 11 | 11 | 10 | 10 | 10 | 9 | 9 | 11 | 13 | 13 | 13 |
A monthly average windspeed of over 16km/h or 10mph suggests a location is fairly windy.
The graph below shows the average relative humidity.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
---|---|---|---|---|---|---|---|---|---|---|---|
87% | 87% | 85% | 82% | 76% | 75% | 79% | 81% | 84% | 85% | 87% | 87% |
Hottest month: | July | 19.5°C 67.1°F |
---|---|---|
Driest month: | February | 25mm 1ins |
Sunniest month: | June | 10.7hrs |
Coldest month: | February | -2.7°C 27.1°F |
Wettest month: | August | 75mm 3ins |
Warmest sea: | August | 16.9°C 62.4°F |