May Weather in Cagliari, Italy

Last updated: March 24, 2025

In Cagliari, Italy, May ushers in a delightful spring climate, showcasing a maximum temperature of 30°C (86°F) and an average temperature of 18°C (65°F). As the days warm, the minimum temperature can dip to a comfortable 8°C (46°F), providing a pleasant range for outdoor activities. With 57 mm (2.3 in) of precipitation spread over 7 days, occasional showers contribute to the lush scenery without dampening the vibrancy of the season. The air is often filled with a warm humidity of 78%, creating an inviting atmosphere that enhances the beauty of Cagliari in May. Whether you’re exploring historic sites or enjoying the picturesque beaches, this month offers a perfect blend of warmth and refreshing coastal breezes.

May Temperature in Cagliari

In May, Cagliari experiences a delightful transition into warmer weather, with temperatures reflecting the vibrant spirit of spring. With a minimum of 8°C (46°F) and a comfortable average of 18°C (65°F), the city begins to shake off the coolness of winter. This month boasts a maximum peak of 30°C (86°F), highlighting warmer days perfect for exploring the picturesque beaches and historic sites. As the temperatures rise consistently from the previous months, May sets the stage for the summer ahead, inviting both locals and tourists to indulge in the pleasant Mediterranean atmosphere.

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

The chart illustrates May temperature patterns in Cagliari, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505254586573798074665853
Data source: Temperature data for Cagliari 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 Cagliari

In Cagliari, Italy, May is a defining month for precipitation, with an average of 57 mm (2.3 in) of rainfall spread over 7 days. This marks a noticeable increase from the previous months, particularly April's 49 mm (1.9 in), highlighting May as a transitional period toward the drier summer. The moderate rain contributes to a lush landscape, making it an ideal time for outdoor activities before the significantly drier June, which typically receives only 19 mm (0.7 in) across just 2 days. As spring gives way to summer, May balances between refreshing showers and sunny days, embodying the charm of Cagliari’s Mediterranean climate.

May Precipitation Trends in Cagliari

The chart displays monthly precipitation patterns in Cagliari, 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.
JanFebMarAprMayJunJulAugSepOctNovDec342948495719117334810954
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Cagliari

As May arrives in Cagliari, a slight increase in humidity is felt, averaging around 78%. This marks a subtle rise from the wetter spring months, with April at 77% and a steady flow from the previous months, which lingered in the low to mid-70s. The trend indicates that as the city transitions from spring to summer, humidity levels tend to remain consistently high, peaking in May before stabilizing. Following this pattern, the summer months continue to hover around 77%, making May yet another lush and vibrant time in this coastal gem of Italy.

May Average Humidity in Cagliari

This chart illustrates the average monthly humidity levels in Cagliari, 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.
JanFebMarAprMayJunJulAugSepOctNovDec77%73%73%77%78%77%77%74%75%76%75%74%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Cagliari

As spring transitions into summer, the UV Index in Cagliari, Italy, escalates sharply, reflecting an upward trend in sun intensity. In May, the UV Index reaches a striking 9, categorized as very high, with a burn time of just 15 minutes—indicating that sun safety measures are crucial during this month. Comparatively, April saw a UV Index of 8, while already in March, it was at a significant 6. The rising patterns continue into June, which peaks at a UV Index of 10, underscoring the importance of protecting your skin as the sun's rays become increasingly potent. For more detailed information on the UV Index throughout the year, please visit Cagliari UV Index.

Maximum UV Index Levels in Cagliari for May

The chart shows the monthly maximum UV Index (UVI) for Cagliari 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.
JanFebMarAprMayJunJulAugSepOctNovDec34689101098643
Data source: Cagliari 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 Cagliari

As May blossoms in Cagliari, the city basks in an impressive 398 hours of sunshine, marking a delightful peak in daylight that sets the stage for summer's approach. Following a steady ascent from 213 hours in January, each month reveals a gradual increase, culminating in this vibrant month. The sunlit hours are not just a number; they signal the transformation of the landscape, encouraging outdoor activities and leisurely strolls along the stunning coastline. With June expected to shine even brighter at 408 hours, May acts as a welcoming transition, sparking the energy and excitement that fill the air as both locals and visitors come alive under the warm rays of the Sardinian sun.

Monthly Sunshine Duration in Cagliari: May Highlighted

The May sunshine duration represents the total number of hours Cagliari 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.
JanFebMarAprMayJunJulAugSepOctNovDec213h275h334h354h398h408h422h392h339h320h263h258h
Data source: Cagliari May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cagliari During May

In Cagliari, Italy, the likelihood of sunny weather shows a notable upward trend as the year progresses. May experiences a 52% chance of sunshine, marking a pleasant transition to the warmer months. This is a slight improvement from April’s 44%, and it sets the stage for the upcoming summer, where the chances skyrocket to 64% in June and soar even higher to 80% in July. Overall, while May may not guarantee unbroken sunshine, its moderate prospects indicate a delightful shift toward brighter days, making it a charming time to enjoy the scenic beauty of the region.

Percentage of Sunny Days in May in Cagliari

The chart illustrates the percentage of sunny days in Cagliari 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 Cagliari experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec36%49%60%44%52%64%80%81%47%51%34%45%
Data source: Cagliari May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cagliari in May

As spring unfolds into summer, Cagliari, Italy experiences a delightful increase in daylight duration. Starting in January with merely 9 hours of sunlight, the days gradually lengthen, reaching 14 hours by May — a bright prelude to the summer months. This peak of daylight continues through June and July, creating an inviting atmosphere for outdoor adventures. However, as summer wanes in August, daylight begins to retreat, tapering off to 13 hours and further diminishing through the autumn months, ultimately returning to 9 hours by December. This rhythmic pattern not only highlights Cagliari's vibrant seasonal shifts but also emphasizes the city's inviting climate for those yearning for longer days under the sun.

Average Daylight Hours in Cagliari for May

The chart illustrates the variation in daylight duration in Cagliari throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 44m10h 43m11h 58m13h 15m14h 20m14h 52m14h 35m13h 37m12h 24m11h 7m10h9h 26m
Data source: Cagliari daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Cagliari

In Cagliari's May, the winds pick up slightly with an average speed of 3.7 m/s (8 mph), offering a gentle yet invigorating breeze as spring approaches its end. This is a noticeable increase from the calmer months of February and March, characterized by lower wind speeds of 3.4 m/s and 3.3 m/s, respectively. As the city transitions into summer, the wind in May serves as a pleasant companion, contrasting with the typical summer peak in July at 3.6 m/s. Overall, the gradual uptick in wind speed during this month suggests a lively shift, perfect for enjoying outdoor activities while still enjoying a comfortable climate.

Average May Wind Speed in Cagliari

The chart displays monthly wind speed patterns in Cagliari, 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.
JanFebMarAprMayJunJulAugSepOctNovDec4.43.43.33.53.7 m/s3.13.63.23.22.63.03.6
Data source: Cagliari May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Cagliari Compares to Other Months

The weather in Cagliari 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 Cagliari and find detailed weather information for every month.

In comparing the weather between May and January, May offers significantly warmer temperatures, ranging from a minimum of 8°C (46°F) to a maximum of 30°C (86°F), with an average temperature of 18°C (65°F). In contrast, January's temperatures are much cooler, with a minimum of 2°C (35°F) and a maximum of 18°C (65°F), resulting in an average of only 10°C (50°F). Additionally, May experiences higher precipitation levels at 57 mm (2.3 in), while January has only 34 mm (1.4 in). Both months see precipitation on approximately seven days, but May's higher humidity at 78% compared to January's 76% makes it feel more oppressive. For more detailed information, you can check Cagliari weather in January.

When comparing the weather in May and February, it's evident that May offers a significantly warmer and more inviting climate. In May, temperatures range from a minimum of 8°C (46°F) to a maximum of 30°C (86°F), with an average of 18°C (65°F). In contrast, February experiences cooler temperatures, with a minimum of 2°C (36°F) and a maximum of 19°C (67°F), averaging just 11°C (52°F). Additionally, May sees a higher level of precipitation at 57 mm (2.3 in) over about 7 days, compared to February's 29 mm (1.1 in) across 5 days. Despite the mild weather in February, with humidity at 73%, May's higher humidity of 78% adds to the perception of warmth. For a more detailed look, check out Cagliari weather in February.

In a comparison of May and March weather, May presents a significantly warmer climate with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 30°C (86°F), compared to March's cooler range of 3°C (38°F) to 21°C (71°F). While May sees an average precipitation of 57 mm (2.3 in) over about 7 days, March has slightly less rainfall at 48 mm (1.9 in) spread over 9 days. Additionally, the humidity in May is higher at 78%, compared to March's 73%. For a more detailed look at March weather specifics, you can refer to Cagliari weather in March.

In comparing the weather of April and May, we see a noticeable increase in temperatures as we move into late spring. May boasts a minimum temperature of 8°C (46°F) with an average of 18°C (65°F) and a maximum of 30°C (86°F), while April starts cooler, with a minimum of 4°C (40°F) and an average of 14°C (58°F), peaking at 24°C (75°F). Although May has slightly higher precipitation at 57 mm (2.3 in) over 7 days, compared to April's 49 mm (1.9 in) over 10 days, both months maintain high humidity levels—78% in May and 77% in April. For more details on April weather, check out Cagliari weather in April.

May and June present noticeable differences in weather conditions. In May, temperatures range from a minimum of 8°C (46°F) to a maximum of 30°C (86°F), with an average of 18°C (65°F) and considerable precipitation of 57 mm (2.3 in) over 7 days. The humidity is relatively high at 78%. In contrast, June warms up significantly, with minimum temperatures of 13°C (55°F) and a maximum of 34°C (94°F), averaging at 23°C (74°F). Precipitation drops dramatically to just 19 mm (0.7 in) over 2 days, and humidity remains similar at 77%. For more details on June’s weather, you can check out Cagliari weather in June.

In May, temperatures in Cagliari range from a cool 8°C (46°F) at night to a warm 30°C (86°F) during the day, with an average of 18°C (65°F). The month is accompanied by 57 mm (2.3 in) of precipitation spread over 7 days, leading to a humid atmosphere with humidity levels around 78%. In contrast, July experiences much warmer weather, with minimum temperatures starting at 18°C (65°F) and reaching a maximum of 36°C (97°F), averaging 26°C (79°F). Notably, July is significantly drier, receiving only 1 mm (0.0 in) of precipitation over the course of the month and maintains a slightly lower humidity of about 77%. For more detailed information, you can check Cagliari weather in July.

May and August present distinct contrasts in weather conditions. In May, temperatures range from a cool 8°C (46°F) at night to a pleasantly warm 30°C (86°F) during the day, with an average of 18°C (65°F). The month sees more precipitation, totaling 57 mm (2.3 in) over about seven days, along with higher humidity at 78%. In contrast, August experiences significantly warmer temperatures, ranging from a mild 17°C (63°F) to a scorching 38°C (100°F), with an average of 27°C (80°F). Rainfall is minimal, only 17 mm (0.7 in) over just three days, and humidity drops slightly to 74%. For a closer look at what to expect during this summer month, check out Cagliari weather in August.

In May, temperatures in Cagliari typically range from a chilly 8°C (46°F) at night to a warm 30°C (86°F) during the day, with an average temperature of 18°C (65°F). The month experiences about 57 mm (2.3 in) of precipitation over approximately 7 days, accompanied by humidity levels around 78%. In contrast, September shows a notable increase in average temperature, with daily highs reaching 33°C (92°F) and a minimum of 13°C (56°F). This month is generally drier, with only 33 mm (1.3 in) of rain falling over about 6 days and slightly lower humidity at 75%. For more details, check out Cagliari weather in September.

May and October present mild and pleasant weather, though with some notable differences. In May, temperatures range from a minimum of 8°C (46°F) to a maximum of 30°C (86°F), with an average of 18°C (65°F). The month sees around 57 mm (2.3 in) of precipitation over approximately 7 days, accompanied by a humidity level of 78%. In contrast, October features slightly warmer temperatures, with a minimum of 10°C (51°F) and a maximum of 28°C (84°F), averaging 19°C (66°F). Precipitation decreases to 47 mm (1.9 in) over the same number of days, with humidity slightly lower at 76%. For more details on October's weather, you can visit Cagliari weather in October.

In May, the weather tends to be warmer and drier compared to November, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 30°C (86°F) and an average of 18°C (65°F). This month experiences approximately 57 mm (2.3 in) of precipitation over about 7 days, coupled with a higher humidity level of 78%. In contrast, November is cooler and wetter, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 22°C (72°F) and an average of 15°C (59°F). During this month, the precipitation increases significantly to 109 mm (4.3 in) over 14 days, while humidity remains relatively stable at 75%. For more details, you can check out Cagliari weather in November.

May and December present contrasting weather experiences. In May, temperatures range from a minimum of 8°C (46°F) to a warm maximum of 30°C (86°F), with an average of 18°C (65°F). It's a month that welcomes spring with relatively high humidity at 78% and some precipitation, totaling 57 mm (2.3 in) over approximately 7 days. In contrast, December is much cooler, with temperatures ranging from a low of 3°C (38°F) to a high of only 18°C (65°F) and an average of 12°C (53°F). The precipitation is slightly less at 54 mm (2.1 in) spread over 8 days, and the humidity is a bit lower at 74%. This shift from the warm embrace of spring to the chill of winter is quite pronounced. For more detailed insights on December's weather, check out Cagliari weather in December.

Compare Cagliari's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Cagliari

As May unfolds in Cagliari, the city's weather begins to transition from the coolness of spring to the warmth of summer, offering an average temperature of 18°C (65°F) that feels comfortably inviting. This month is marked by less precipitation compared to the wetter months preceding it, with only a handful of rainy days, making it an ideal time for outdoor exploration. With humidity levels at a relatively high 78%, the air can feel a bit muggy, but the rising temperatures often make up for it, allowing locals and visitors alike to bask in the sun. Overall, May serves as a delightful bridge to the vibrant summer months ahead. For more details on what to expect throughout the year, check the full Cagliari Climate guide.