Castro-Urdiales in December
5.5out of 10
Possible, with caveats
Cool: highs only around 13°C. Very wet: about 15 rainy days.
13°CAvg high
9°CAvg low
15Rainy days (116 mm)
8:48 hDaylight
08:45Sunrise · 17:33 Sunset
Why this score
- Cool: highs only around 13°C
- Very wet: about 15 rainy days
- Rain varies a lot between years (±4.8 days)
What to wear and pack
- A warm jacket
- Rain jacket or compact umbrella
How reliable is the forecast?
Rain in December varies a lot between years (±4.8 rainy days), so check the forecast closer to your trip. Averages cover 30 years (1991–2020). Individual days can differ a lot.
Year at a glance
Weather by month
| Month | Avg high | Avg low | Rainfall | Rainy days | Humidity | Sunshine | Score |
|---|---|---|---|---|---|---|---|
| January | 12°C | 9°C | 119 mm | 15 | – | – | 5.3 |
| February | 12°C | 8°C | 104 mm | 14 | – | – | 5.6 |
| March | 14°C | 9°C | 98 mm | 13 | – | – | 5.9 |
| April | 15°C | 11°C | 89 mm | 14 | – | – | 6.0 |
| May | 17°C | 13°C | 69 mm | 13 | – | – | 6.6 |
| June | 20°C | 16°C | 56 mm | 10 | – | – | 7.4 |
| July | 22°C | 18°C | 46 mm | 9 | – | – | 7.8 |
| August | 23°C | 19°C | 49 mm | 9 | – | – | 7.8 |
| September | 21°C | 17°C | 67 mm | 11 | – | – | 7.5 |
| October | 19°C | 15°C | 103 mm | 14 | – | – | 6.6 |
| November | 15°C | 11°C | 152 mm | 16 | – | – | 5.5 |
| December | 13°C | 9°C | 116 mm | 15 | – | – | 5.5 |
Frequently asked questions
How hot is Castro-Urdiales in December?
Daytime highs average 13°C and nights about 9°C.
When is the best time to visit Castro-Urdiales?
The best months are July, August, September, June.