May Weather in Santiago de Compostela, Spain

Last updated: February 6, 2025

In May, Santiago de Compostela experiences a delightful blend of warmth and occasional rain, with maximum temperatures reaching up to 30°C (86°F) and an average temperature of 14°C (58°F). While the temperatures can be quite pleasant, residents and visitors should be prepared for cooler nights, as minimum temperatures can dip to 2°C (36°F). This month sees an average precipitation of 80 mm (3.2 in) over about 11 days, contributing to the region's lush greenery. With an humidity level of 83%, the air carries a refreshing moistness, making May a vibrant and dynamic time to explore the historic beauty of this iconic Spanish city.

May Temperature in Santiago de Compostela

In May, Santiago de Compostela experiences a delightful transition into warmer weather, with temperatures showcasing a noticeable increase. The minimum temperature rises to 2°C (36°F), while the average climbs to a comfortable 14°C (58°F). Daily highs can reach a pleasant 30°C (86°F), marking it as one of the warmest months in the city. This upward trend from April's cooler 12°C (53°F) average is a clear indicator that spring is in full swing, inviting visitors to explore the picturesque streets and enjoy the vibrant atmosphere. As the days grow longer and sunnier, May truly embodies the charm of Santiago, making it the perfect time for both locals and travelers to soak in the region's rich culture and history.

May Weather in Santiago de Compostela: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Santiago de Compostela, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec464950535861656563585149
Data source: Temperature data for Santiago de Compostela generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

May Precipitation in Santiago de Compostela

In May, Santiago de Compostela experiences a notable decline in precipitation, with an average of 80 mm (3.2 in) spread over 11 days. This marks a shift from the wetter spring months of March and April, where rainfall peaked at 136 mm (5.4 in) and 112 mm (4.4 in), respectively. As the city transitions into summer, the lighter rains of May suggest a gradual easing of the notorious Galician downpours. While the moisture levels start to taper off, the lush green landscape that defines Santiago still benefits from this spring rainfall, setting the stage for the dryer months ahead. Overall, May serves as a bridge between the wetter spring and the drier summer, revealing a fascinating interplay of climate characteristics in this picturesque region of Spain.

May Precipitation Trends in Santiago de Compostela

The chart displays monthly precipitation patterns in Santiago de Compostela, 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.
JanFebMarAprMayJunJulAugSepOctNovDec971241361128073323655105150169
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santiago de Compostela

In Santiago de Compostela, May sees an average humidity level of 83%, which mirrors the trend established in the previous month of April. This consistency hints at the region's characteristic dampness during the spring, as humidity levels remain relatively stable throughout the early months of the year. Interestingly, as summer approaches in June, the humidity persists at 83%, making for typically moist conditions. However, a gradual decline becomes evident from July onwards, with humidity dropping to 82% and continuing to decrease through August, showcasing a shift towards drier weather. Overall, May's humidity exemplifies Santiago's temperate climate, blending mild spring warmth with the gentle embrace of moisture that defines its landscape.

May Average Humidity in Santiago de Compostela

This chart illustrates the average monthly humidity levels in Santiago de Compostela, 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.
JanFebMarAprMayJunJulAugSepOctNovDec85%83%82%83%83%83%82%78%79%82%84%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Santiago de Compostela

In May, Santiago de Compostela experiences a significant rise in UV intensity, with an impressive UV Index of 9, categorizing it as very high. This trend marks a stark contrast to the earlier months, as exposure increases sharply, reducing the burn time to just 15 minutes. As spring transitions towards summer, the city's sunlight becomes more potent, prompting residents and visitors to take precautions against sunburn. The high levels of UV radiation in May emphasize the importance of protecting skin with sunscreen and appropriate clothing. This pattern continues into June and July, where the UV Index remains consistently high, highlighting the need for awareness and diligence when enjoying the outdoors. For more details, explore the Santiago de Compostela UV Index.

Maximum UV Index Levels in Santiago de Compostela for May

The chart shows the monthly maximum UV Index (UVI) for Santiago de Compostela 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.
JanFebMarAprMayJunJulAugSepOctNovDec2468910997632
Data source: Santiago de Compostela 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 Santiago de Compostela

As May arrives in Santiago de Compostela, the city basks in the glow of 394 sunshine hours, marking a delightful peak in the spring season. This month stands out as a radiant transition from the relatively modest sun exposure of winter, such as 171 hours in January and 234 hours in February. With each passing month, the daylight steadily improves, culminating in May's abundant sunshine, which is not only a significant increase from April's 342 hours but also sets the stage for the continued splendor of summer. This sunny trend gently tapers off into June and July, where despite high levels of sunshine, the days begin to feel more subtly lit, leading the city into the warm embrace of summer. Visitors and locals alike can revel in this seasonal burst of brightness, making May a particularly enchanting time to explore Santiago's historic streets and lush parks.

Monthly Sunshine Duration in Santiago de Compostela: May Highlighted

The May sunshine duration represents the total number of hours Santiago de Compostela 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.
JanFebMarAprMayJunJulAugSepOctNovDec171h234h303h342h394h391h414h385h339h298h229h202h
Data source: Santiago de Compostela May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santiago de Compostela During May

In May, Santiago de Compostela experiences a 34% chance of sunny weather, positioning it among the milder months for sunshine compared to the earlier spring months like March and April, and just below the warmer summer months of June and July. There’s a noticeable trend as temperatures rise, with the likelihood of sunny days gradually increasing from 19% in February to a peak of 48% in August. While May offers a promising balance for outdoor activities, it remains less sunny than the peak summer months, suggesting that visitors might still encounter a mix of sun and clouds. This temperate climate makes Santiago a delightful spring destination, encouraging exploration amid the lush greenery that thrives in this vibrant season.

Percentage of Sunny Days in May in Santiago de Compostela

The chart illustrates the percentage of sunny days in Santiago de Compostela 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 Santiago de Compostela experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec32%19%54%38%34%43%41%48%32%37%47%33%
Data source: Santiago de Compostela May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santiago de Compostela in May

In Santiago de Compostela, Spain, daylight duration begins its gradual increase in January with just 9 hours, but a noticeable upward trend takes shape as spring approaches. By March, the city enjoys 11 hours of daylight, which blossoms into a delightful 14 hours by May. This peak precedes the summer solstice in June, where daylight stretches to a generous 15 hours. However, as the year progresses into the warmer months of July and August, daylight slightly recedes to 14 and 13 hours respectively, before tapering off in the autumn. The pattern reveals a rhythmic cycle, where summer's long days gradually give way to shorter daylight hours, culminating in the wintry months of November and December, both returning to the 9-hour mark. This dance of light not only shapes the seasons but also enriches the cultural tapestry of Santiago throughout the year.

Average Daylight Hours in Santiago de Compostela for May

The chart illustrates the variation in daylight duration in Santiago de Compostela throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 24m10h 31m11h 57m13h 25m14h 39m15h 17m14h 57m13h 51m12h 26m10h 59m9h 42m9h 3m
Data source: Santiago de Compostela daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Santiago de Compostela

In May, Santiago de Compostela experiences a gentle increase in average wind speed, reaching 3.9 m/s (9 mph), a slight uptick compared to the preceding months. This moderate breeze adds to the city's vibrant atmosphere as spring unfolds, making it an ideal time for outdoor explorations and enjoying the lush landscapes. Notably, the wind speeds in May are higher than those of April and March, hinting at a transition towards warmer summer days. As the months progress toward summer, a consistent pattern emerges, with June showing a modest decline in wind speed. Overall, May's breezy conditions contribute to the charm and allure of Santiago during this beautiful spring month.

Average May Wind Speed in Santiago de Compostela

The chart displays monthly wind speed patterns in Santiago de Compostela, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.35.43.63.23.9 m/s3.83.33.12.93.33.74.3
Data source: Santiago de Compostela May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Santiago de Compostela Compares to Other Months

The weather in Santiago de Compostela 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 Santiago de Compostela and find detailed weather information for every month.

May and January present notably different weather patterns. In May, temperatures range from a minimum of 2°C (36°F) to a maximum of 30°C (86°F), with an average of 14°C (58°F). The month experiences about 80 mm (3.2 in) of precipitation over 11 days and maintains a relative humidity of 83%.

In contrast, January features cooler temperatures with a minimum of -3°C (28°F) and a maximum of 20°C (68°F), averaging around 8°C (47°F). Precipitation is slightly higher, totaling 97 mm (3.8 in) across the same number of days, while humidity remains at 84%.

For more detailed information about January weather, you can check Santiago de Compostela weather in January.

In comparing the weather of May and February, we see notable differences in temperatures and precipitation patterns. May boasts milder temperatures with a minimum of 2°C (36°F), averaging 14°C (58°F), and reaching a maximum of 30°C (86°F). In contrast, February's temperatures are cooler, ranging from a minimum of -1°C (31°F) to a maximum of 22°C (71°F), with an average of 10°C (50°F). Additionally, February experiences higher precipitation, totaling 124 mm (4.9 in) over 13 days, compared to May’s 80 mm (3.2 in) across 11 days. Interestingly, both months share the same humidity level at 83%, indicating that February may feel wetter despite May having less rainfall. For more details, you can check Santiago de Compostela weather in February.

In comparing the weather between March and May, we see a notable shift in temperatures and precipitation levels. May boasts a higher average temperature of 14°C (58°F) compared to March's cooler average of 10°C (50°F), with May reaching a maximum of 30°C (86°F) on some days. However, March experiences more rainfall, with a total of 136 mm (5.4 in) over 14 days, while May has 80 mm (3.2 in) across 11 days, indicating drier conditions. Humidity levels are relatively similar, with May at 83% and March slightly lower at 82%. For more detailed insights on March's climate, you can check out Santiago de Compostela weather in March.

In comparing the weather between April and May, we see a noticeable shift in temperature and precipitation. May experiences a minimum temperature of 2°C (36°F) and averages a warmer 14°C (58°F), peaking at 30°C (86°F). In contrast, April features slightly cooler temperatures, with a minimum of 1°C (34°F), an average of 12°C (53°F), and a maximum of 26°C (79°F). However, April has higher precipitation levels, totaling 112 mm (4.4 in) across 14 days, compared to May's 80 mm (3.2 in) over 11 days. Both months share the same humidity level of 83%, contributing to a consistent, moist atmosphere. For more detailed information, you can check Santiago de Compostela weather in April.

May and June present a gradual transition in weather patterns. In May, temperatures range from a chilly 2°C (36°F) at night to a warm 30°C (86°F) during the day, with an average of 14°C (58°F). The month is characterized by relatively high precipitation, receiving 80 mm (3.2 in) over 11 rainy days, while humidity remains constant at 83%.

In contrast, June offers slightly warmer conditions, with nighttime lows of 5°C (42°F) and daytime highs reaching up to 31°C (88°F), averaging around 16°C (61°F). Although June experiences less precipitation—73 mm (2.9 in) over 12 days—the humidity stays the same at 83%. This means that while both months are similarly humid, June tends to feel a bit more pleasant and warmer. For more detailed weather information, check out Santiago de Compostela weather in June.

In May, temperatures can range from a chilly 2°C (36°F) to a warm 30°C (86°F), with an average of 14°C (58°F). The month is characterized by significant rainfall, receiving about 80 mm (3.2 in) over approximately 11 days, and a high humidity level of 83%. In contrast, July sees a milder climate, featuring temperatures that start at a minimum of 8°C (47°F) and peak at 32°C (89°F), with an average of 18°C (65°F). Precipitation is much lower in July, totaling only 32 mm (1.3 in) over 6 days, and humidity remains relatively stable at 82%. This highlights a transition from the wetter start of summer in May to the drier and warmer conditions typical of July. For more detailed information on July weather specifically, you can check out Santiago de Compostela weather in July.

May and August in Santiago de Compostela exhibit notable differences in weather patterns. May features a broader temperature range, with minimums dipping to 2°C (36°F) and maximums reaching up to 30°C (86°F), while August generally experiences milder conditions, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 33°C (91°F). In terms of precipitation, May is wetter, receiving 80 mm (3.2 in) over approximately 11 days, compared to August’s lighter rainfall of 36 mm (1.4 in) spread over just 7 days. Humidity levels also slightly favor May at 83%, while August sees a slightly lower average of 78%. For more detailed information, visit Santiago de Compostela weather in August.

In May, the weather in Santiago de Compostela is characterized by a wider temperature range, with minimums dipping to 2°C (36°F) and maximums reaching up to 30°C (86°F), while the average sits around 14°C (58°F). The month experiences about 80 mm (3.2 in) of precipitation over 11 days, and humidity levels remain relatively high at 83%. In contrast, September brings milder minimum temperatures of 7°C (45°F) and an average of 17°C (63°F), with maximums peaking at 32°C (90°F). The precipitation decreases to 55 mm (2.2 in) across 10 days, alongside slightly lower humidity at 79%. For more insights into the September climate, you can check Santiago de Compostela weather in September.

When comparing the weather in May and October, both months present a similar average temperature of 14°C (58°F), yet their temperature extremes slightly differ. In May, minimum temperatures can drop to 2°C (36°F), while October's temperatures only dip slightly lower, reaching a minimum of 4°C (39°F). Both months can see maximum temperatures soar to 30°C (86°F). However, October experiences slightly more precipitation, with 105 mm (4.1 in) over 12 days compared to May's 80 mm (3.2 in) over 11 days. The humidity levels are also comparable, with October at 82% and May at a marginally higher 83%. For further details on the weather in October, you can check Santiago de Compostela weather in October.

May and November exhibit distinct differences in weather patterns, reflecting the transition into and out of summer. In May, temperatures range from a minimum of 2°C (36°F) to a maximum of 30°C (86°F), with an average of 14°C (58°F). The month experiences around 80 mm (3.2 in) of precipitation over approximately 11 days, and humidity levels sit at 83%. In contrast, November sees cooler temperatures, with a low of 1°C (33°F) and a high of 20°C (68°F), averaging 11°C (52°F). This month experiences significantly higher precipitation, totaling 150 mm (5.9 in) across about 16 days, with humidity slightly higher at 84%. For a detailed overview, check out Santiago de Compostela weather in November.

May and December in Santiago de Compostela present contrasting weather patterns. In May, temperatures range from a minimum of 2°C (36°F) to a maximum of 30°C (86°F), with an average of 14°C (58°F), and the month sees about 80 mm (3.2 in) of precipitation over 11 days. The humidity hovers at a comfortable 83%. In contrast, December features cooler temperatures with a minimum of -1°C (31°F) and a maximum of 17°C (63°F), averaging 10°C (50°F). This month experiences more rainfall, totaling 169 mm (6.7 in) across 17 days, and the humidity remains relatively high at 85%. For more detailed information on December weather, you can check Santiago de Compostela weather in December.

Compare Santiago de Compostela's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Santiago de Compostela

As spring unfolds in Santiago de Compostela, May brings a delightful transition in weather compared to earlier months. While temperatures start to rise, showcasing maximums reaching up to 30°C, the average remains a comfortable 14°C, allowing for pleasant outdoor exploration. However, the month is also marked by occasional rainfall, with about 11 days seeing precipitation, contributing to the lush greenery that the region is known for. With a relatively high humidity of 83%, visitors can expect a fresh yet slightly damp atmosphere. Overall, May offers a unique blend of warmth and moisture, distinguishing it from the chillier and drier months preceding it. For more detailed insights, check out Santiago de Compostela Climate.