The bar chart below shows the average monthly peak daytime temperatures at Leiden
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 5.2 | 5.6 | 8.6 | 11.4 | 16 | 18.5 | 20.4 | 20.9 | 18 | 14.1 | 9.4 | 6.8 |
°F | 41.3 | 42.1 | 47.5 | 52.5 | 60.9 | 65.2 | 68.7 | 69.6 | 64.3 | 57.4 | 49 | 44.2 |
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 | 70 | 45 | 64 | 45 | 52 | 65 | 71 | 68 | 80 | 85 | 88 | 78 |
inches | 2.8 | 1.8 | 2.5 | 1.8 | 2 | 2.6 | 2.8 | 2.7 | 3.2 | 3.3 | 3.5 | 3.1 |
Rainy days | 20 | 12 | 18 | 13 | 14 | 13 | 14 | 14 | 16 | 17 | 19 | 19 |
Average annual rainfall in Leiden: 866.7mm (341.2 inches)
The bar chart below shows the average daily sunshine hours in Leiden
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
Hrs sunshine | 1.7 | 3 | 3.8 | 5.8 | 7.4 | 7.3 | 7.1 | 6.8 | 4.9 | 3.6 | 2.1 | 1.4 |
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 | 0.5 | 0 | 2 | 3.6 | 7.4 | 10.4 | 12.6 | 12.5 | 10.3 | 7.3 | 4.1 | 2.1 |
Max °C | 5.3 | 5.8 | 8.8 | 11.6 | 16.3 | 18.7 | 20.6 | 21.1 | 18.2 | 14.3 | 9.6 | 6.9 |
Min °F | 32.9 | 32.1 | 35.6 | 38.5 | 45.2 | 50.6 | 54.7 | 54.5 | 50.5 | 45.1 | 39.3 | 35.8 |
Max °F | 37.2 | 37.2 | 41.7 | 45.7 | 53.2 | 58.1 | 61.9 | 62.2 | 57.6 | 51.4 | 44.2 | 40.1 |
The graph below shows the average sea temperature.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
°C | 7.1 | 5.9 | 6.1 | 8.1 | 11 | 14 | 16.5 | 18.1 | 17.4 | 15.2 | 12.1 | 9.1 |
°F | 44.7 | 42.6 | 43 | 46.5 | 51.7 | 57.1 | 61.8 | 64.6 | 63.3 | 59.4 | 53.8 | 48.5 |
The graph below shows the average wind speed.
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
---|---|---|---|---|---|---|---|---|---|---|---|---|
km/h | 22 | 22 | 22 | 18 | 18 | 18 | 17 | 16 | 16 | 18 | 21 | 22 |
mph | 14 | 14 | 14 | 11 | 11 | 11 | 11 | 10 | 10 | 11 | 13 | 14 |
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 |
---|---|---|---|---|---|---|---|---|---|---|---|
88% | 85% | 84% | 80% | 78% | 80% | 80% | 80% | 83% | 85% | 86% | 88% |
Hottest month: | August | 20.9°C 69.6°F |
---|---|---|
Driest month: | February | 45mm 1.8ins |
Sunniest month: | May | 7.4hrs |
Coldest month: | January | 5.2°C 41.4°F |
Wettest month: | November | 88mm 3.5ins |
Warmest sea: | August | 18.1°C 64.6°F |