May Weather in Castelldefels, Spain

Last updated: February 6, 2025

May in Castelldefels, Spain, brings a delightful transition into warmer weather, with temperatures peaking at 25°C (78°F) and averaging a comfortable 17°C (63°F). Nights can be a bit cooler, dipping to a minimum of 9°C (48°F). While May showcases the beauty of spring, it's also marked by a modest 39 mm (1.5 in) of rainfall over 7 days, suggesting the need for an umbrella on occasion. The humidity levels hover around 66%, adding a refreshing touch to the coastal atmosphere. Whether you're enjoying the sun or navigating the occasional shower, May offers a vibrant blend of sun and sprinkles in this picturesque Spanish locale.

May Temperature in Castelldefels

In May, Castelldefels, Spain begins to blossom with warmer temperatures, presenting a delightful transition into late spring. With minimums rising to 9°C (48°F), the days grow noticeably milder, while the average temperature hovers around 17°C (63°F), inviting residents and visitors alike to enjoy the outdoors. Peaks of 25°C (78°F) signal the onset of summer, making this month a perfect time for beach outings and outdoor activities. Compared to the cooler preceding months, May showcases a significant uptick in warmth, characterizing the vibrant and inviting atmosphere that Castelldefels is renowned for during this season.

May Weather in Castelldefels: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Castelldefels, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505254576370767772665853
Data source: Temperature data for Castelldefels generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Castelldefels

In May, Castelldefels experiences a delightful transition towards summer, with 39 mm (1.5 in) of precipitation over approximately 7 days. This marks a decrease from the wetter months of April, which recorded 69 mm (2.7 in), indicating a gradual shift into drier conditions as the year progresses. The milder rainfall patterns continue into June, suggesting that locals can anticipate more sunny days ahead. Overall, May serves as a bridge between the rainy spring months and the more arid summer, providing just enough moisture to nurture the blooming landscapes without overwhelming them.

May Precipitation Trends in Castelldefels

The chart displays monthly precipitation patterns in Castelldefels, with values for each month alongside May's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how May's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec5947477039312838991098130
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

May Humidity in Castelldefels

In May, Castelldefels, Spain, experiences a refreshing dip in humidity, averaging at 66%. This notable decrease follows a gradual decline from the more humid months of January through April, where levels hovered between 79% and 69%. As spring unfolds, the air becomes a touch drier, setting the stage for the warm summer months ahead. The trend of decreasing humidity continues into June, which drops slightly further to 65%. This creates a pleasant atmosphere for outdoor activities, making May an ideal time to enjoy the seaside charm of Castelldefels while basking in the comfortable coastal climate.

May Average Humidity in Castelldefels

This chart illustrates the average monthly humidity levels in Castelldefels, with May's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how May's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec79%74%71%69%66%65%64%64%68%77%79%79%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Castelldefels

As spring transitions into summer in Castelldefels, Spain, the UV Index surges dramatically in May, reaching a notable 9, which falls into the very high exposure category. This sharp increase reflects a trend of rising sun intensity that begins in the cooler months, building from a moderate index of 3 in January to 4 in February and gradually escalating. With a burn time of only 15 minutes in May, it’s crucial for residents and visitors alike to take precautions against sun exposure, especially as the days grow longer and sunnier. This trend continues into June and July, where the UV Index peaks further at 10. To stay informed and protect yourself effectively, it's advisable to check current conditions regularly at Castelldefels UV Index.

Maximum UV Index Levels in Castelldefels for May

The chart shows the monthly maximum UV Index (UVI) for Castelldefels in May, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec34579101097632
Data source: Castelldefels May UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

May Sunshine in Castelldefels

May in Castelldefels, Spain, marks a radiant transition into the heart of spring, with a magnificent 406 hours of sunshine illuminating the coastline. This month stands out as a highlight in the yearly sunshine calendar, showcasing a significant increase from the preceding months—January’s modest 206 hours and April’s 346 hours. The upward trend continues into June, reaching 413 hours, ensuring that the long, sun-soaked days are just beginning. As summer approaches, each month displays a delightful escalation in sunlight, creating the perfect backdrop for beach outings and outdoor activities. In stark contrast, the shorter daylight hours of winter are a distant memory, making May a cherished time for locals and visitors alike to bask in the warmth of the Mediterranean sun.

Monthly Sunshine Duration in Castelldefels: May Highlighted

The May sunshine duration represents the total number of hours Castelldefels experiences direct sunlight during the month of May, excluding cloudy or obstructed periods. This chart compares the sunshine duration of May with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec206h264h334h346h406h413h425h396h338h311h265h263h
Data source: Castelldefels May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Castelldefels During May

In Castelldefels, Spain, the likelihood of sunny weather sees a notable rise as the year progresses. After the more variable months of January through April, where sun chances fluctuate between 38% and 55%, May offers a promising 44% chance of clear skies. This trend is indicative of the approaching summer, with June and July boasting significantly higher probabilities of sunshine at 54% and 72% respectively. While May may not guarantee uninterrupted sunshine, it serves as a delightful precursor to the sunnier months ahead, inviting residents and visitors alike to enjoy its moderate climate before the summer heat takes hold.

Percentage of Sunny Days in May in Castelldefels

The chart illustrates the percentage of sunny days in Castelldefels throughout the year, with May highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Castelldefels experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec47%38%55%38%44%54%72%52%35%45%44%53%
Data source: Castelldefels May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Castelldefels in May

In Castelldefels, Spain, the transition through the year reveals a captivating pattern of increasing daylight hours, peaking in June with an impressive 15 hours of sunlight. As winter departs, January starts with only 9 hours, but by May, the days stretch to 14 hours of golden daylight, signaling the full embrace of spring. This trend of longer days continues until July, before gradually tapering off as the leaves begin to change color in the autumn months. By the time we reach December, daylight returns to its winter confines with just 9 hours, completing the cycle. This rhythmic dance of light not only illuminates the landscape but also enhances the vibrant lifestyle of this coastal region throughout the year.

Average Daylight Hours in Castelldefels for May

The chart illustrates the variation in daylight duration in Castelldefels throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 33m10h 36m11h 57m13h 20m14h 30m15h 6m14h 47m13h 45m12h 25m11h 3m9h 50m9h 13m
Data source: Castelldefels daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Castelldefels

In May, Castelldefels experiences a subtle uptick in wind speed, averaging 3.9 m/s (9 mph), which is a slight improvement from the quieter months of April and March. This gentle breeze adds a refreshing touch to the warm Mediterranean days, making it perfect for outdoor activities. As the season progresses into summer, wind speeds tend to decrease, with June experiencing the lowest average, yet the soft winds of May serve as a delightful transition from spring to summer, enhancing the charm of this coastal paradise. Notably, the fluctuation from the earlier months hints at a dynamic wind pattern, giving residents and visitors alike an invigorating experience during this time of year.

Average May Wind Speed in Castelldefels

The chart displays monthly wind speed patterns in Castelldefels, with values for each month shown alongside May's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how May's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.84.13.63.53.9 m/s3.33.53.23.73.44.44.1
Data source: Castelldefels May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Castelldefels Compares to Other Months

The weather in Castelldefels changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of May's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Castelldefels and find detailed weather information for every month.

When comparing the weather in May and January, May generally offers warmer temperatures, with a minimum of 9°C (48°F) and an average of 17°C (63°F), peaking at 25°C (78°F). In contrast, January tends to be cooler, featuring a minimum of 3°C (38°F) and an average of 10°C (50°F), while it can reach a maximum of 20°C (68°F). Additionally, May experiences less precipitation, totaling 39 mm (1.5 in) over about 7 days, compared to January's 59 mm (2.3 in) spread over 6 days. The humidity is also higher in January at 79%, compared to May's 66%. For more details on January weather, you can check Castelldefels weather in January.

Comparing the weather in May and February reveals notable differences in temperature and humidity. May enjoys a warmer climate with average temperatures reaching 17°C (63°F) and a maximum of 25°C (78°F), while February's average is cooler at 11°C (53°F), peaking at 19°C (66°F). Additionally, May generally experiences less precipitation, with 39 mm (1.5 in) over 7 days, compared to February’s 47 mm (1.9 in) across 6 days. Humidity levels are also higher in February at 74%, compared to May's 66%. For more detailed information, you can check Castelldefels weather in February.

When comparing the weather in May and March, there are noticeable differences in temperature and humidity. May enjoys milder temperatures with a minimum of 9°C (48°F), an average of 17°C (63°F), and a maximum of 25°C (78°F), while March has cooler conditions, ranging from a minimum of 4°C (39°F) to a maximum of 19°C (67°F). Precipitation is slightly lower in May, with 39 mm (1.5 in) over 7 days compared to March's 47 mm (1.9 in) over 6 days. Humidity levels are also slightly lower in May at 66%, compared to 71% in March. For a detailed look at March weather patterns, you can explore Castelldefels weather in March.

In comparing the weather of May and April, May generally offers warmer temperatures, with an average of 17°C (63°F) compared to April's 14°C (57°F). The maximum temperatures also rise, reaching up to 25°C (78°F) in May versus 20°C (69°F) in April. However, April experiences more precipitation, totaling 69 mm (2.7 in) over 9 days, while May sees less rain at 39 mm (1.5 in) across 7 days. Both months maintain high humidity levels, with April at 69% and May slightly lower at 66%. For a detailed look at April's weather, you can visit Castelldefels weather in April.

May and June exhibit a noticeable transition in weather patterns. In May, temperatures begin at a minimum of 9°C (48°F) and reach a maximum of 25°C (78°F), with an average temperature of 17°C (63°F). The month sees around 39 mm (1.5 in) of precipitation over approximately 7 days, accompanied by a humidity level of 66%. In contrast, June offers warmer conditions, with minimum temperatures around 14°C (58°F) and maximums peaking at 28°C (83°F), averaging 21°C (71°F) overall. Additionally, June experiences slightly less rainfall, totaling 31 mm (1.2 in) over 5 days, while maintaining a similar humidity level of 65%. For more detailed insights, check out Castelldefels weather in June.

In May, the weather typically features a milder temperature range, with minimums around 9°C (48°F) and maximums reaching 25°C (78°F), while the average sits at 17°C (63°F). This month sees about 39 mm (1.5 in) of precipitation over seven days, accompanied by a humidity level of 66%. In contrast, July brings warmer conditions, with minimum temperatures rising to 18°C (64°F) and maximums peaking at 29°C (85°F), resulting in an average of 24°C (76°F). July experiences less precipitation, totaling 28 mm (1.1 in) over just five days and slightly lower humidity at 64%. For more detailed information, check out Castelldefels weather in July.

In May, the weather is generally milder with temperatures ranging from a minimum of 9°C (48°F) to a maximum of 25°C (78°F), averaging around 17°C (63°F). This month experiences moderate humidity at 66% and sees about 39 mm (1.5 in) of precipitation over approximately 7 days. In contrast, August brings warmer conditions, with temperatures starting at a minimum of 18°C (65°F) and peaking at 32°C (90°F), averaging 25°C (77°F). The humidity drops slightly to 64%, and the precipitation levels are similar, at around 38 mm (1.5 in) over the same number of days. For more details on the warm summer weather, check out Castelldefels weather in August.

May and September present notably different weather patterns. In May, the temperatures range from a cool minimum of 9°C (48°F) to a maximum of 25°C (78°F), with an average temperature of 17°C (63°F). This month experiences less rainfall, totaling 39 mm (1.5 in) over about seven days, and humidity levels sit at 66%. Conversely, September is warmer, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 28°C (83°F), averaging 22°C (73°F). However, it brings more rain, totaling 99 mm (3.9 in) across 13 days, and slightly higher humidity at 68%. For more detailed information, you can check out Castelldefels weather in September.

May and October in Castelldefels present a transitional climate, with both months sharing similar maximum temperatures around 25°C (77°F). However, May tends to be slightly warmer on average at 17°C (63°F), compared to October's average of 19°C (66°F). One noticeable difference is in precipitation; May brings a milder 39 mm (1.5 in) over 7 days, while October experiences a significant increase with 109 mm (4.3 in) over 11 days. Additionally, October's humidity is higher, sitting at 77% compared to May's 66%. For a closer look at what to expect, you can check Castelldefels weather in October.

May and November present contrasting weather patterns, highlighting the transition from spring to late autumn. In May, temperatures range from a minimum of 9°C (48°F) to a maximum of 25°C (78°F), with an average of 17°C (63°F). The month brings relatively moderate precipitation of 39 mm (1.5 in) over 7 days, accompanied by a humidity level of 66%.

In contrast, November experiences cooler temperatures with a minimum of 7°C (44°F) and a maximum of 22°C (72°F), averaging 14°C (58°F). This month sees a significant increase in rainfall, totaling 81 mm (3.2 in) across 9 days, and higher humidity levels at 79%. For more detailed weather information, you can check Castelldefels weather in November.

When comparing the weather in May and December, May generally experiences milder conditions with average temperatures ranging from a minimum of 9°C (48°F) to a maximum of 25°C (78°F). In contrast, December is cooler, with average temperatures ranging from 4°C (40°F) to 18°C (65°F). Precipitation is slightly higher in May at 39 mm (1.5 in) over 7 days, while December sees less rain, totaling 30 mm (1.2 in) across just 4 days. Additionally, humidity levels are higher in December at 79%, compared to May's 66%. For a deeper look into December's weather patterns, you can explore Castelldefels weather in December.

Compare Castelldefels's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Castelldefels

May in Castelldefels heralds the arrival of spring in full bloom, featuring pleasant temperatures that average around 17°C (63°F), with highs reaching a delightful 25°C (78°F). Compared to the cooler months, this transition brings more comfortable weather for outdoor activities, although there's still an occasional sprinkle, with about 39 mm of rain spread across 7 days. The increasing humidity at 66% adds a refreshing touch to the air, making May a fantastic time to explore the coastline. As the days grow warmer, embrace the beauty of Castelldefels and discover more about its unique climate throughout the seasons at Castelldefels Climate.