UTC Offset
UTC+02:00
Castelldefels, Spain Snapshot 2026
Where is Castelldefels?
Castelldefels, Spain
- Continent
- Europe
- Country
- Spain
- City
- Castelldefels
- Population
- 66.4K
- Coordinates
- 41.28°, 1.97°
Castelldefels is a city in Spain with a population of approximately 66.4K. Average temperatures range from 7°C (45°F) in January to 28°C (83°F) in August. The best time to visit is June, July, September, October.
Time in Castelldefels right now
Open full time & time zone page 06:19 19
Wednesday, June 17, 2026
IANA time zone
Europe/Madrid
Daylight saving
DST in effect
CET / CEST
Next DST change
October 25
backward -1h
Live weather in Castelldefels
Daylight in Castelldefels today
View full sunrise & sunset page Sunrise
Sunset
Day length
15h 09m
Climate normals for Castelldefels
Long-term monthly averages based on historical data.
January
Fair 
February
Fair 
March
Good April
Good May
Good June best
Excellent July best
Excellent August
Good September best
Excellent October best
Excellent November
Good December
Good | Month | Temp | Feels Like | Rain | Sun | Humidity | UV | Status | Details |
|---|---|---|---|---|---|---|---|---|
| January | 13°C / 7°C | 11°C / 4°C | 5days (39 mm) Good | 7.3h Good | 77% Humid | 2.5 Moderate | Fair | View Details |
| February | 14°C / 8°C | 13°C / 6°C | 7days (40 mm) Good | 8.3h Good | 79% Humid | 3.4 Moderate | Fair | View Details |
| March | 15°C / 9°C | 14°C / 7°C | 9days (59 mm) Wet | 9.4h Good | 77% Humid | 4.6 Moderate | Good | View Details |
| April | 17°C / 11°C | 17°C / 10°C | 9days (76 mm) Wet | 10.7h Excellent | 78% Humid | 6.1 High | Good | View Details |
| May | 20°C / 14°C | 22°C / 14°C | 9days (56 mm) Wet | 12.3h Excellent | 79% Humid | 7.2 Very High | Good | View Details |
| June best | 25°C / 19°C | 28°C / 21°C | 7days (37 mm) Good | 13.1h Excellent | 76% Humid | 7.5 Very High | Excellent | View Details |
| July best | 28°C / 22°C | 31°C / 25°C | 6days (37 mm) Good | 13.2h Excellent | 75% Muggy | 7.5 Very High | Excellent | View Details |
| August | 28°C / 23°C | 32°C / 26°C | 8days (60 mm) Wet | 11.8h Excellent | 75% Muggy | 6.9 High | Good | View Details |
| September best | 25°C / 20°C | 27°C / 21°C | 13days (86 mm) Wet | 10.1h Excellent | 77% Humid | 5.6 High | Excellent | View Details |
| October best | 21°C / 17°C | 22°C / 17°C | 10days (99 mm) Wet | 8.5h Good | 79% Humid | 4.1 Moderate | Excellent | View Details |
| November | 17°C / 12°C | 16°C / 10°C | 8days (49 mm) Wet | 7.7h Good | 76% Humid | 2.8 Moderate | Good | View Details |
| December | 14°C / 9°C | 13°C / 7°C | 5days (31 mm) Good | 7.1h Good | 79% Humid | 2.1 Moderate | Good | View Details |
Monthly Temperatures
HighLow
Line chart showing monthly temperatures. Jan: 13°C / 7°C . Feb: 14°C / 8°C . Mar: 15°C / 9°C . Apr: 17°C / 11°C . May: 20°C / 14°C . Jun: 25°C / 19°C . Jul: 28°C / 22°C . Aug: 28°C / 23°C . Sep: 25°C / 20°C . Oct: 21°C / 17°C . Nov: 17°C / 12°C . Dec: 14°C / 9°C .
Monthly Rainfall
Rainfall
Bar chart showing monthly rainfall. Jan: 39 mm. Feb: 40 mm. Mar: 59 mm. Apr: 76 mm. May: 56 mm. Jun: 37 mm. Jul: 37 mm. Aug: 60 mm. Sep: 86 mm. Oct: 99 mm. Nov: 49 mm. Dec: 31 mm.
Monthly Humidity
Humidity
Line chart showing monthly humidity. Jan: 77%. Feb: 79%. Mar: 77%. Apr: 78%. May: 79%. Jun: 76%. Jul: 75%. Aug: 75%. Sep: 77%. Oct: 79%. Nov: 76%. Dec: 79%.
Monthly Wind Speed
Wind SpeedGusts
Bar chart showing monthly wind speed. Jan: 14 km/h . Feb: 14 km/h . Mar: 17 km/h . Apr: 17 km/h . May: 15 km/h . Jun: 15 km/h . Jul: 16 km/h . Aug: 15 km/h . Sep: 14 km/h . Oct: 13 km/h . Nov: 14 km/h . Dec: 13 km/h .
Sea Temperature
Sea Temperatureswim
Line chart showing monthly sea temperature. Jan: 14°C . Feb: 14°C . Mar: 14°C . Apr: 16°C . May: 19°C . Jun: 23°C . Jul: 26°C . Aug: 28°C . Sep: 25°C . Oct: 22°C . Nov: 18°C . Dec: 16°C .
UV Index
UV Index
Bar chart showing monthly UV index. Jan: UV 3. Feb: UV 3. Mar: UV 5. Apr: UV 6. May: UV 7. Jun: UV 8. Jul: UV 8. Aug: UV 7. Sep: UV 6. Oct: UV 4. Nov: UV 3. Dec: UV 2.
Frequently Asked Questions
Castelldefels has a population of approximately 66.4K.
The best months to visit Castelldefels are June, July, September, October, when temperatures are pleasant and rainfall is lower.
Castelldefels receives approximately 669mm of rainfall annually across 96 rainy days.
Castelldefels is located in Spain, in the Europe region.