Castro-Urdiales weather in March
In March, Castro-Urdiales sees average daytime highs of 14°C and overnight lows near 10°C, with 98 mm of precipitation across 13.2 wet days and about 11.6 hours of daylight. It is the 9th-warmest and 6th-wettest month of the year here.
Day-to-day highs hold fairly steady near 14°C through the month. The sky is clear or mostly clear about 23% of the time in March, and the air most often feels dry.
Daylight stretches from about 10 h 54 min at the start of March to 12 h 24 min by month's end. Set against the rest of the year, March is Castro-Urdiales's 6th-clearest and 5th-windiest month. For the whole year in context, see Castro-Urdiales's year-round climate.
- Daytime high
- 14°
- 9th warmest
- Overnight low
- 10°
- 3rd coldest
- Precipitation
- 98 mm
- 13.2 wet days
- Daylight
- 11 h 36 min
- 7:34 AM – 7:11 PM
- Cloud cover
- 62%
- 6th clearest
- Wind
- 16 km/h
- 5th windiest
- Solar energy
- 3.83 kWh/m²
- Travel score
- 3.7
- out of 10
Castro-Urdiales is capital of Castro-Urdiales Municipality, Spain.
- Air quality
- Good
- PM10 15.1 µg/m³ · 2019
Air quality: WHO Ambient Air Quality Database. Density & description: Wikidata (CC0), GeoNames.
Temperature in March
Day-to-day highs hold fairly steady near 14°C through the month.
A typical March day in Castro-Urdiales reaches about 14°C in the afternoon and slips back to 10°C overnight — a 4°C spread between the day's warmth and the night's chill. On most days the high lands between 10°C and 17°C. Set against its neighbours, March runs about 1°C warmer than February and about 1°C cooler than April.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high (°C) | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 13 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 | 14 |
| Avg low (°C) | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 9 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 | 10 |
| Avg high (°C) | Avg low (°C) | |
|---|---|---|
| 1 | 13 | 9 |
| 2 | 13 | 9 |
| 3 | 13 | 9 |
| 4 | 13 | 9 |
| 5 | 13 | 9 |
| 6 | 13 | 9 |
| 7 | 13 | 9 |
| 8 | 13 | 9 |
| 9 | 13 | 9 |
| 10 | 13 | 9 |
| 11 | 13 | 9 |
| 12 | 14 | 9 |
| 13 | 14 | 10 |
| 14 | 14 | 10 |
| 15 | 14 | 10 |
| 16 | 14 | 10 |
| 17 | 14 | 10 |
| 18 | 14 | 10 |
| 19 | 14 | 10 |
| 20 | 14 | 10 |
| 21 | 14 | 10 |
| 22 | 14 | 10 |
| 23 | 14 | 10 |
| 24 | 14 | 10 |
| 25 | 14 | 10 |
| 26 | 14 | 10 |
| 27 | 14 | 10 |
| 28 | 14 | 10 |
| 29 | 14 | 10 |
| 30 | 14 | 10 |
| 31 | 14 | 10 |
Castro-Urdiales weather by month
How March compares with the rest of the year at a glance. March is the 9th-warmest and 6th-wettest month here — the current month is highlighted below.
| Month | High / Low (°C) | Rainfall (mm) | Wet days | Daylight (hours) | Travel score |
|---|---|---|---|---|---|
| Jan | 12° / 9° | 119 | 15 | 9.2 | 2.9 |
| Feb | 12° / 8° | 103 | 13.5 | 10.2 | 2.9 |
| Mar | 14° / 10° | 98 | 13.2 | 11.6 | 3.7 |
| Apr | 15° / 11° | 89 | 13.8 | 13.2 | 4.0 |
| May | 17° / 13° | 69 | 12.7 | 14.5 | 5.1 |
| Jun | 20° / 16° | 56 | 9.9 | 15.2 | 6.2 |
| Jul | 22° / 18° | 46 | 9.1 | 14.9 | 6.9 |
| Aug | 23° / 19° | 49 | 9.4 | 13.8 | 7.0 |
| Sep | 21° / 17° | 66 | 10.9 | 12.3 | 6.4 |
| Oct | 19° / 15° | 103 | 13.8 | 10.8 | 5.5 |
| Nov | 15° / 12° | 152 | 16.1 | 9.5 | 3.9 |
| Dec | 13° / 10° | 117 | 14.9 | 8.8 | 3.3 |
Cloud cover in March
The sky is clear or mostly clear about 23% of the time in March.
Beyond those clear spells, partly cloudy skies cover about 16% of March, with mostly cloudy or overcast conditions the remaining 61%.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Clearer (%) | 33 | 33 | 33 | 33 | 34 | 35 | 36 | 36 | 37 | 38 | 39 | 40 | 40 | 40 | 40 | 41 | 41 | 41 | 41 | 41 | 41 | 41 | 42 | 41 | 42 | 42 | 42 | 42 | 42 | 42 | 41 |
| Cloudier (%) | 67 | 67 | 67 | 67 | 66 | 65 | 64 | 64 | 63 | 62 | 61 | 60 | 60 | 60 | 60 | 59 | 59 | 59 | 59 | 59 | 59 | 59 | 58 | 59 | 58 | 58 | 58 | 58 | 58 | 58 | 59 |
| Clearer (%) | Cloudier (%) | |
|---|---|---|
| 1 | 33 | 67 |
| 2 | 33 | 67 |
| 3 | 33 | 67 |
| 4 | 33 | 67 |
| 5 | 34 | 66 |
| 6 | 35 | 65 |
| 7 | 36 | 64 |
| 8 | 36 | 64 |
| 9 | 37 | 63 |
| 10 | 38 | 62 |
| 11 | 39 | 61 |
| 12 | 40 | 60 |
| 13 | 40 | 60 |
| 14 | 40 | 60 |
| 15 | 40 | 60 |
| 16 | 41 | 59 |
| 17 | 41 | 59 |
| 18 | 41 | 59 |
| 19 | 41 | 59 |
| 20 | 41 | 59 |
| 21 | 41 | 59 |
| 22 | 41 | 59 |
| 23 | 42 | 58 |
| 24 | 41 | 59 |
| 25 | 42 | 58 |
| 26 | 42 | 58 |
| 27 | 42 | 58 |
| 28 | 42 | 58 |
| 29 | 42 | 58 |
| 30 | 42 | 58 |
| 31 | 41 | 59 |
Chance of precipitation in March
Castro-Urdiales gets around 98 mm of rain and snow over 13.2 wet days in March. The line is the day-by-day chance of measurable precipitation.
Day to day, the chance of measurable precipitation averages around 42% and peaks near 49% on the wettest days, and about 0 day brings snow.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Rain chance (%) | 49 | 49 | 48 | 48 | 47 | 46 | 44 | 43 | 41 | 40 | 39 | 37 | 36 | 36 | 35 | 35 | 36 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 44 | 45 | 45 | 46 | 46 |
| Snow chance (%) | 2 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
| Rain chance (%) | Snow chance (%) | |
|---|---|---|
| 1 | 49 | 2 |
| 2 | 49 | 1 |
| 3 | 48 | 1 |
| 4 | 48 | 1 |
| 5 | 47 | 1 |
| 6 | 46 | 1 |
| 7 | 44 | 1 |
| 8 | 43 | 1 |
| 9 | 41 | 1 |
| 10 | 40 | 0 |
| 11 | 39 | 0 |
| 12 | 37 | 0 |
| 13 | 36 | 0 |
| 14 | 36 | 0 |
| 15 | 35 | 0 |
| 16 | 35 | 0 |
| 17 | 36 | 0 |
| 18 | 36 | 0 |
| 19 | 37 | 0 |
| 20 | 38 | 0 |
| 21 | 39 | 0 |
| 22 | 40 | 0 |
| 23 | 41 | 0 |
| 24 | 42 | 0 |
| 25 | 43 | 0 |
| 26 | 44 | 0 |
| 27 | 44 | 0 |
| 28 | 45 | 0 |
| 29 | 45 | 0 |
| 30 | 46 | 0 |
| 31 | 46 | 0 |
Humidity in March
Most of March feels dry — the stacked bands show each day's mix of comfort levels, read off the dew point.
By dew point, March lands in the dry band about 100% of days. It rarely turns muggy — the humid and sticky bands barely register.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dry (%) | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 99 |
| Comfortable (%) | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 |
| Dry (%) | Comfortable (%) | |
|---|---|---|
| 1 | 100 | 0 |
| 2 | 100 | 0 |
| 3 | 100 | 0 |
| 4 | 100 | 0 |
| 5 | 100 | 0 |
| 6 | 100 | 0 |
| 7 | 100 | 0 |
| 8 | 100 | 0 |
| 9 | 100 | 0 |
| 10 | 100 | 0 |
| 11 | 100 | 0 |
| 12 | 100 | 0 |
| 13 | 100 | 0 |
| 14 | 100 | 0 |
| 15 | 100 | 0 |
| 16 | 100 | 0 |
| 17 | 100 | 0 |
| 18 | 100 | 0 |
| 19 | 100 | 0 |
| 20 | 100 | 0 |
| 21 | 100 | 0 |
| 22 | 100 | 0 |
| 23 | 100 | 0 |
| 24 | 100 | 0 |
| 25 | 100 | 0 |
| 26 | 100 | 0 |
| 27 | 100 | 0 |
| 28 | 100 | 0 |
| 29 | 100 | 0 |
| 30 | 100 | 0 |
| 31 | 99 | 1 |
Wind in March
Winds average 16 km/h in March.
Across March, daily wind ranges from about 15 km/h on the calmest days to 17 km/h at its breeziest. It stays fairly steady from day to day.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Wind speed (km/h) | 17 | 17 | 17 | 17 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 15 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Feels | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze | light breeze |
| Wind speed (km/h) | Feels | |
|---|---|---|
| 1 | 17 | light breeze |
| 2 | 17 | light breeze |
| 3 | 17 | light breeze |
| 4 | 17 | light breeze |
| 5 | 16 | light breeze |
| 6 | 16 | light breeze |
| 7 | 16 | light breeze |
| 8 | 16 | light breeze |
| 9 | 16 | light breeze |
| 10 | 16 | light breeze |
| 11 | 16 | light breeze |
| 12 | 16 | light breeze |
| 13 | 16 | light breeze |
| 14 | 15 | light breeze |
| 15 | 15 | light breeze |
| 16 | 15 | light breeze |
| 17 | 15 | light breeze |
| 18 | 15 | light breeze |
| 19 | 15 | light breeze |
| 20 | 15 | light breeze |
| 21 | 15 | light breeze |
| 22 | 15 | light breeze |
| 23 | 16 | light breeze |
| 24 | 16 | light breeze |
| 25 | 16 | light breeze |
| 26 | 16 | light breeze |
| 27 | 16 | light breeze |
| 28 | 16 | light breeze |
| 29 | 16 | light breeze |
| 30 | 16 | light breeze |
| 31 | 16 | light breeze |
Sunrise & sunset in March
Daylight runs from about 10 h 54 min at the start of March to 12 h 24 min by month's end. The lit band spans sunrise to sunset each day.
Days grow by about 90 minutes over March. Sunrise moves from 8:00 AM to 7:06 AM, and sunset from 6:53 PM to 7:30 PM.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Daylight (h) | 10.9 | 10.9 | 11.0 | 11.0 | 11.1 | 11.1 | 11.2 | 11.2 | 11.3 | 11.3 | 11.4 | 11.4 | 11.5 | 11.5 | 11.6 | 11.6 | 11.7 | 11.7 | 11.8 | 11.8 | 11.9 | 11.9 | 12.0 | 12.0 | 12.1 | 12.1 | 12.2 | 12.2 | 12.3 | 12.3 | 12.4 |
| Sunrise (AM) | 8:00 | 7:58 | 7:56 | 7:55 | 7:53 | 7:51 | 7:50 | 7:48 | 7:46 | 7:44 | 7:43 | 7:41 | 7:39 | 7:37 | 7:35 | 7:34 | 7:32 | 7:30 | 7:28 | 7:26 | 7:24 | 7:23 | 7:21 | 7:19 | 7:17 | 7:15 | 7:13 | 7:12 | 7:10 | 7:08 | 7:06 |
| Sunset (PM) | 6:53 | 6:54 | 6:55 | 6:56 | 6:58 | 6:59 | 7:00 | 7:02 | 7:03 | 7:04 | 7:05 | 7:07 | 7:08 | 7:09 | 7:10 | 7:11 | 7:13 | 7:14 | 7:15 | 7:16 | 7:18 | 7:19 | 7:20 | 7:21 | 7:22 | 7:24 | 7:25 | 7:26 | 7:27 | 7:28 | 7:30 |
| Daylight (h) | Sunrise (AM) | Sunset (PM) | |
|---|---|---|---|
| 1 | 10.9 | 8:00 | 6:53 |
| 2 | 10.9 | 7:58 | 6:54 |
| 3 | 11.0 | 7:56 | 6:55 |
| 4 | 11.0 | 7:55 | 6:56 |
| 5 | 11.1 | 7:53 | 6:58 |
| 6 | 11.1 | 7:51 | 6:59 |
| 7 | 11.2 | 7:50 | 7:00 |
| 8 | 11.2 | 7:48 | 7:02 |
| 9 | 11.3 | 7:46 | 7:03 |
| 10 | 11.3 | 7:44 | 7:04 |
| 11 | 11.4 | 7:43 | 7:05 |
| 12 | 11.4 | 7:41 | 7:07 |
| 13 | 11.5 | 7:39 | 7:08 |
| 14 | 11.5 | 7:37 | 7:09 |
| 15 | 11.6 | 7:35 | 7:10 |
| 16 | 11.6 | 7:34 | 7:11 |
| 17 | 11.7 | 7:32 | 7:13 |
| 18 | 11.7 | 7:30 | 7:14 |
| 19 | 11.8 | 7:28 | 7:15 |
| 20 | 11.8 | 7:26 | 7:16 |
| 21 | 11.9 | 7:24 | 7:18 |
| 22 | 11.9 | 7:23 | 7:19 |
| 23 | 12.0 | 7:21 | 7:20 |
| 24 | 12.0 | 7:19 | 7:21 |
| 25 | 12.1 | 7:17 | 7:22 |
| 26 | 12.1 | 7:15 | 7:24 |
| 27 | 12.2 | 7:13 | 7:25 |
| 28 | 12.2 | 7:12 | 7:26 |
| 29 | 12.3 | 7:10 | 7:27 |
| 30 | 12.3 | 7:08 | 7:28 |
| 31 | 12.4 | 7:06 | 7:30 |
Solar energy in March
Average shortwave solar energy reaching the ground each day in March, about 3.83 kWh/m².
For context, solar energy here swings from a low near 1.4 kWh/m² to a high of 6.12 kWh/m² in June across the year — March's 3.83 kWh/m² falls in the middle.
| 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | 24 | 25 | 26 | 27 | 28 | 29 | 30 | 31 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Solar energy (kWh/m²) | 3.0 | 3.1 | 3.1 | 3.2 | 3.3 | 3.3 | 3.4 | 3.4 | 3.5 | 3.6 | 3.6 | 3.7 | 3.7 | 3.8 | 3.8 | 3.9 | 3.9 | 4.0 | 4.0 | 4.1 | 4.1 | 4.1 | 4.2 | 4.2 | 4.2 | 4.3 | 4.3 | 4.3 | 4.3 | 4.4 | 4.4 |
| Level | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Moderate | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright | Bright |
| Solar energy (kWh/m²) | Level | |
|---|---|---|
| 1 | 3.0 | Moderate |
| 2 | 3.1 | Moderate |
| 3 | 3.1 | Moderate |
| 4 | 3.2 | Moderate |
| 5 | 3.3 | Moderate |
| 6 | 3.3 | Moderate |
| 7 | 3.4 | Moderate |
| 8 | 3.4 | Moderate |
| 9 | 3.5 | Moderate |
| 10 | 3.6 | Moderate |
| 11 | 3.6 | Moderate |
| 12 | 3.7 | Moderate |
| 13 | 3.7 | Moderate |
| 14 | 3.8 | Moderate |
| 15 | 3.8 | Moderate |
| 16 | 3.9 | Moderate |
| 17 | 3.9 | Moderate |
| 18 | 4.0 | Moderate |
| 19 | 4.0 | Bright |
| 20 | 4.1 | Bright |
| 21 | 4.1 | Bright |
| 22 | 4.1 | Bright |
| 23 | 4.2 | Bright |
| 24 | 4.2 | Bright |
| 25 | 4.2 | Bright |
| 26 | 4.3 | Bright |
| 27 | 4.3 | Bright |
| 28 | 4.3 | Bright |
| 29 | 4.3 | Bright |
| 30 | 4.4 | Bright |
| 31 | 4.4 | Bright |
Is March a good time to visit Castro-Urdiales?
Our two travel scores rate March for general sightseeing and for beach or pool weather — 0 (poor) to 10 (ideal).
March is a weaker month for outdoor sightseeing in Castro-Urdiales.
What to pack for Castro-Urdiales in March
From March's temperature range, rain chance, sun and wind — what's worth putting in the bag.
In March, Castro-Urdiales sees daytime highs around 14°C and nights near 10°C. Worth packing: a warm layer and rain gear. About 13 days see rain.
Sea temperature near Castro-Urdiales in March
The nearest coast averages about 13°C in March — the other half of the beach question. The full-year curve and swim-comfort zones are below.
The sea offshore is warmest in August at about 22°C and coldest in February near 13°C.
It's comfortable for a long swim from Jul 11 to Sep 21 — about 2.4 months when the water holds above 20°C.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Sea temperature (°C) | 13 | 13 | 13 | 13 | 15 | 18 | 21 | 22 | 20 | 18 | 16 | 14 |
| Comfort | Bracing | Bracing | Bracing | Bracing | Cool | Cool | Refreshing | Refreshing | Refreshing | Cool | Cool | Bracing |
| Sea temperature (°C) | Comfort | |
|---|---|---|
| Jan | 13 | Bracing |
| Feb | 13 | Bracing |
| Mar | 13 | Bracing |
| Apr | 13 | Bracing |
| May | 15 | Cool |
| Jun | 18 | Cool |
| Jul | 21 | Refreshing |
| Aug | 22 | Refreshing |
| Sep | 20 | Refreshing |
| Oct | 18 | Cool |
| Nov | 16 | Cool |
| Dec | 14 | Bracing |
UV index in Castro-Urdiales in March
Clear-sky midday UV in March peaks around 5 — enough to warrant sun protection. The full-year curve, shaded by WHO exposure level, is below.
Under clear skies, the midday UV index in Castro-Urdiales peaks around July 15 at about 9 (very high) — sunscreen, a hat and midday shade are essential. It bottoms out near December 22 at about 1 (low).
The index reaches 3 or more — the level where the WHO recommends sun protection — in 8 months of the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| UV index (midday) | 2 | 2 | 5 | 6 | 6 | 8 | 9 | 8 | 5 | 4 | 2 | 1 |
| Level | Low | Low | Moderate | High | High | Very high | Very high | Very high | High | Moderate | Low | Low |
| UV index (midday) | Level | |
|---|---|---|
| Jan | 2 | Low |
| Feb | 2 | Low |
| Mar | 5 | Moderate |
| Apr | 6 | High |
| May | 6 | High |
| Jun | 8 | Very high |
| Jul | 9 | Very high |
| Aug | 8 | Very high |
| Sep | 5 | High |
| Oct | 4 | Moderate |
| Nov | 2 | Low |
| Dec | 1 | Low |
Where is Castro-Urdiales?
Castro-Urdiales sits at 43.4°N, 3.2°W, 18 m above sea level, in Spain. The nearest listed city is Santurtzi, 16 km away.
Topography around Castro-Urdiales
How much the land rises and falls, and what covers it, within 3, 16 and 80 km of Castro-Urdiales.
Within 3 km, the terrain around Castro-Urdiales has significant variations in elevation — a maximum elevation change of 455 m around an average of 60 m above sea level; within 16 km, large variations in elevation — a maximum elevation change of 851 m; within 80 km, very significant variations in elevation — a maximum elevation change of 1,676 m.
The land around Castro-Urdiales is covered by water (46%) and trees (30%) within 3 km, water (50%) and trees (35%) within 16 km, and trees (37%), water (35%) and grassland (20%) within 80 km.
Spain travel facts
- Travel advisory
- Level 2
- Exercise Increased Caution
- Power plugs
- Type C / F
- 230 V · 50 Hz
- Prices
- ≈ 65% of US
- price level, 2025
- GDP per capita
- $38,627
- 2025
- Happiness
- 6.5 / 10
- World Happiness, 2025
- Safe drinking water
- 99%
- of population, 2024
- Homicide rate
- 0.7
- per 100k, 2023
- Road deaths
- 3.9
- per 100k/yr, 2019
- Income group
- High
- World Bank
- English
- Moderate
- EF EPI 540
- Religion
Sources: World Bank, US State Department, World Happiness Report, WHO/UNICEF, EF EPI, CIA World Factbook.
Data sources
Temperature, precipitation, cloud, humidity, wind and solar figures are a 1991–2020 climatology for Castro-Urdiales (43.3828°, -3.2204°, elevation 18 m), computed from hourly ERA5 reanalysis — contains modified Copernicus Climate Change Service information. Sun figures are astronomical calculations, not observations. City data © GeoNames, CC BY 4.0. Map outlines from Natural Earth (public domain); interactive map © Google. Sea temperatures are the NOAA OISST v2.1 1991–2020 monthly climatology (public domain), sampled at the nearest ocean point. UV index is derived from CAMS (Copernicus Atmosphere Monitoring Service) clear-sky UV data — contains modified Copernicus Atmosphere Monitoring Service information. Topography is sampled from the Copernicus DEM GLO-90 elevation model (© ESA/Airbus) and ESA WorldCover 2021 land cover (CC BY 4.0).