The bar chart below shows the average monthly peak daytime temperatures at Castro-Urdiales
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 11.5 | 12.6 | 13.8 | 15.6 | 17.8 | 20.6 | 23.2 | 23.3 | 22.6 | 19.4 | 14.7 | 12.2 |
| °F | 52.8 | 54.6 | 56.8 | 60.1 | 64 | 69.2 | 73.8 | 74 | 72.7 | 66.9 | 58.5 | 54 |
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 | 128 | 104 | 100 | 123 | 92 | 65 | 52 | 85 | 80 | 116 | 153 | 136 |
| inches | 5 | 4.1 | 3.9 | 4.8 | 3.6 | 2.6 | 2.1 | 3.3 | 3.2 | 4.6 | 6 | 5.4 |
| Rainy days | 19 | 17 | 17 | 18 | 16 | 13 | 11 | 13 | 13 | 15 | 17 | 18 |
Average annual rainfall in Castro-Urdiales: 1274.567mm (501.8 inches)
The bar chart below shows the average daily sunshine hours in Castro-Urdiales
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Hrs sunshine | 2.9 | 3.7 | 4.3 | 4.7 | 5.7 | 6.6 | 7 | 6.5 | 5.7 | 4.6 | 3.5 | 2.7 |
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 | 4.7 | 5.1 | 5.4 | 7 | 9.4 | 12.2 | 14.4 | 14.5 | 13.2 | 10.8 | 7.3 | 5.6 |
| Max °C | 11.7 | 12.8 | 14 | 15.8 | 18 | 20.9 | 23.5 | 23.6 | 22.9 | 19.6 | 14.9 | 12.4 |
| Min °F | 40.5 | 41.1 | 41.7 | 44.6 | 48.9 | 53.9 | 57.8 | 58 | 55.7 | 51.4 | 45.1 | 42.1 |
| Max °F | 46.8 | 48 | 49.5 | 52.5 | 56.7 | 61.7 | 66 | 66.2 | 64.4 | 59.4 | 52 | 48.2 |
The graph below shows the average sea temperature.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| °C | 13.1 | 12.7 | 12.7 | 13.3 | 15.1 | 18 | 20.4 | 21.6 | 20.6 | 18.3 | 15.9 | 14 |
| °F | 55.6 | 54.8 | 54.8 | 55.9 | 59.1 | 64.4 | 68.8 | 70.8 | 69 | 64.9 | 60.6 | 57.3 |
The graph below shows the average wind speed.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| km/h | 13 | 13 | 13 | 14 | 13 | 12 | 11 | 11 | 10 | 11 | 12 | 13 |
| mph | 8 | 8 | 8 | 9 | 8 | 7 | 7 | 7 | 7 | 7 | 7 | 8 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 74% | 72% | 72% | 74% | 74% | 75% | 75% | 76% | 75% | 75% | 75% | 75% |
| Hottest month: | August | 23.3°C 73.9°F |
|---|---|---|
| Driest month: | July | 52mm 2ins |
| Sunniest month: | July | 7hrs |
| Coldest month: | January | 11.5°C 52.7°F |
| Wettest month: | November | 153mm 6ins |
| Warmest sea: | August | 21.6°C 70.9°F |