Last updated: March 24, 2025
May in Palermo, Italy welcomes a delightful Mediterranean climate, characterized by warm temperatures that peak at 32°C (90°F) during the day, while occasional cooler evenings hover around 12°C (54°F), averaging a comfortable 18°C (65°F). Visitors can expect a gentle mix of sunshine and sporadic showers, as 32 mm (1.3 in) of precipitation falls over 6 days, contributing to the season's lush greenery. With humidity levels at 73%, the air is pleasantly inviting, making May an ideal time to explore the vibrant streets and stunning coastline of this historic city.
In May, Palermo transitions into pleasant warmth, marking the true beginning of spring's embrace. With minimum temperatures averaging 12°C (54°F), the chill of winter fades away, setting the stage for delightful days ahead. The average temperature rises to a comfortable 18°C (65°F), perfect for exploring the vibrant city streets or relaxing at the sun-kissed beaches. However, the most striking shift is seen in the maximum temperature, which can soar to 32°C (90°F), inviting sun-seekers to enjoy outdoor activities and savor al fresco dining. This mix of moderate mornings, warm afternoons, and balmy evenings creates an ideal environment for experiencing all the beauty Palermo has to offer.
In May, Palermo experiences a transition towards drier conditions, with precipitation dropping to 32 mm (1.3 in), marking a slight decline from the previous months. This month typically sees around 6 days of rain, a reduction compared to April's 7 days, which suggests that spring is giving way to the drier summer months ahead. While May's rainfall is not as abundant as March's 80 mm (3.1 in), the mild temperatures and decreasing precipitation offer a pleasant outdoor environment, perfect for enjoying the city's rich cultural landscape. As the season progresses into June, rainfall further diminishes, making May a charming prelude to Palermo’s sun-drenched summer.
In May, Palermo experiences a humidity level of 73%, which is consistent with the slightly higher readings seen in the preceding months of April (73%) and March (70%). This trend suggests that spring in Sicilia maintains a relatively moist atmosphere, creating a comfortable environment before the summer heat sets in. As the year progresses, there’s a notable decline in humidity, with June and July seeing levels drop to 68% and 66%, respectively. Such shifts indicate that while May retains the lushness of spring, residents and visitors can expect a gradual transition toward drier summer conditions in the months to come.
In May, Palermo experiences a significant rise in the UV Index, reaching 9, which falls into the very high exposure category. With a reduced burn time of just 15 minutes, sun enthusiasts should be particularly cautious as they enjoy the warming rays. This trend of increasing UV exposure from the beginning of the year ahead into the summer is indicative of Palermo's sunny disposition; for instance, the UV Index jumps from 6 in March to 8 in April, and then to May's peak. As summer approaches, the urgency to protect your skin becomes paramount, signaling that outdoor activities should be paired with adequate sunscreen. For more details on UV levels throughout the year, check out the comprehensive guide on Palermo UV Index.
UV Risk Categories
As May unfolds in Palermo, Italy, the sun shines brightly, illuminating the vibrant streets with a remarkable 396 hours of sunshine. This month marks a delightful peak in daylight, as it builds upon the gradual increase seen since January's mere 217 hours. The spring months showcase a steady climb, with sunshine hours blossoming from 274 in February to 354 in April. By the time June arrives, this sunny trend continues, reaching 404 hours, hinting at the long, sun-soaked days of summer. May serves as a beautiful bridge between the refreshing spring and the full heat of summer, inviting both locals and visitors to bask in its golden rays and enjoy the lively atmosphere that the city has to offer.
As spring transitions into summer, May in Palermo boasts a promising 59% chance of sunny weather, aligning with the city’s trend of gradually increasing sunshine. Following the somewhat variable April, which sits at 51%, May emerges with a consistent likelihood similar to both March and February. This pattern heralds the approach of summer, where temperatures and sunny days soar. By June, the chances elevate to 61%, carrying on through the blazing sun of July and August, when the likelihood reaches a striking 90%. So, while you can expect a fair share of sunshine in May, it’s just a prelude to Palermo’s spectacular summer skies.
In Palermo, Italy, the daylight duration showcases a beautiful progression throughout the year, with notable growth during the spring and early summer. Starting with 9 hours in January, daylight gradually increases, reaching 14 hours by May. This peak is sustained through June, July, and August, allowing for plenty of time to enjoy the sun-drenched streets and vibrant outdoor festivals. As autumn approaches, daylight begins to taper off, descending to 12 hours in September and further down to 10 hours by November. This rhythmic oscillation between shorter and longer days not only highlights the region's seasonal changes but also beckons both locals and visitors alike to fully embrace the splendor of the Italian sunshine.
In May, the winds in Palermo, Italy begin to soften, with an average speed of 3.2 m/s (7 mph), marking a gentle transition from the breezier spring months. Compared to the winter months, where winds reached up to 5.6 m/s in January, May's calmer conditions reflect the gradual warming of the season. As summer approaches, this mild wind typically creates a pleasant atmosphere for outdoor gatherings and explorations. Interestingly, the wind speed then drops even further in June to 2.7 m/s, hinting at the more tranquil days that characterize the Mediterranean summer. Hence, May serves as a bridge, softening the seasonal gusts while embracing the blossoming charm of Palermo.
The weather in Palermo 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 Palermo and find detailed weather information for every month.
In comparison to January, May presents a significantly warmer and more variable climate. January experiences cooler temperatures, with a minimum of 4°C (39°F) and an average of 12°C (54°F), whereas May boasts a minimum of 12°C (54°F) and an average of 18°C (65°F), reaching up to 32°C (90°F) at its peak. Additionally, May has less precipitation, totaling 32 mm (1.3 in) over just 6 days, compared to January's 49 mm (1.9 in) across 10 days. The humidity levels are slightly lower in May at 73% compared to January’s 78%, providing a more comfortable atmosphere as spring arrives. For more information on January weather, visit Palermo weather in January.
May and February offer contrasting weather experiences. In May, temperatures range from a minimum of 12°C (54°F) to a high of 32°C (90°F), creating a much warmer environment with an average of 18°C (65°F). In contrast, February is cooler, with temperatures between 6°C (43°F) and 21°C (69°F), averaging around 12°C (55°F). Additionally, February sees more precipitation, totaling 60 mm (2.4 in) over 8 days, compared to May's 32 mm (1.3 in) across 6 days. Humidity levels are relatively similar, with February at 72% and May at 73%. For more insights on February weather, you can check Palermo weather in February.
In comparing the weather between March and May, May tends to be notably warmer, with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 32°C (90°F), while March sees cooler temperatures, averaging between 8°C (46°F) and 22°C (72°F). Precipitation is significantly lower in May, with only 32 mm (1.3 in) over 6 days, compared to March's 80 mm (3.1 in) over 11 days. Both months have high humidity levels, but May is slightly more humid at 73%, while March rests at 70%. For more detailed information, you can refer to Palermo weather in March.
In comparing the weather between April and May, it’s clear that May experiences warmer temperatures overall, with average lows of 12°C (54°F) and highs reaching up to 32°C (90°F), compared to April’s lower range of 9°C (49°F) to a maximum of 22°C (73°F). Despite the slight increase in temperatures, both months see a similar amount of precipitation, with May receiving 32 mm (1.3 in) over six days and April slightly more at 34 mm (1.3 in) over seven days. Humidity remains consistent in both months at 73%. For more detailed information about April weather, check out Palermo weather in April.
May and June in Palermo showcase a notable shift in weather conditions. In May, temperatures range from a minimum of 12°C (54°F) to a maximum of 32°C (90°F), with an average of 18°C (65°F). Rainfall is relatively moderate, with 32 mm (1.3 in) of precipitation over six rainy days, contributing to a higher humidity level of 73%. In contrast, June experiences warmer temperatures, with a minimum of 16°C (61°F) and a maximum of 33°C (91°F), averaging 23°C (73°F). The month is considerably drier, with only 15 mm (0.6 in) of rainfall over just two days and a slight decrease in humidity to 68%. For more information, you can visit Palermo weather in June.
In May, temperatures begin to warm up with a minimum of 12°C (54°F) and an average of 18°C (65°F), reaching a maximum of 32°C (90°F). The month experiences more rainfall, totaling 32 mm (1.3 in) over about 6 days, along with a higher humidity level of 73%. In contrast, July sees significantly warmer conditions, with minimum temperatures of 21°C (69°F) and an average of 26°C (79°F), peaking at 32°C (91°F). Rainfall is minimal in July, with only 7 mm (0.3 in) falling on just 1 day, and humidity decreases to 66%. For a more detailed outlook, check out Palermo weather in July.
May and August offer distinct weather experiences, each with its own charm. In May, temperatures range from a comfortable 12°C (54°F) at night to a maximum of 32°C (90°F), averaging around 18°C (65°F) during the day. The month sees around 32 mm (1.3 in) of precipitation over approximately 6 days, accompanied by a relatively high humidity of 73%. In contrast, August boasts warmer temperatures, with a minimum of 21°C (70°F) and an average of 27°C (81°F), peaking at 33°C (93°F). This month experiences less rainfall, totaling 24 mm (1.0 in) over just 3 days, and has a lower humidity level of 64%. For more detailed insights, you can visit Palermo weather in August.
May and September exhibit distinct weather patterns, with May offering milder temperatures ranging from a minimum of 12°C (54°F) to a maximum of 32°C (90°F), and an average of 18°C (65°F). It experiences less rainfall, with only 32 mm (1.3 in) over about six days and a humidity level of 73%. In contrast, September features warmer temperatures, starting at a minimum of 18°C (65°F) and reaching an average of 24°C (76°F), peaking at 31°C (88°F). The month sees increased precipitation of 59 mm (2.3 in) over nine days, accompanied by slightly lower humidity at 69%. For a more detailed look at September weather, visit Palermo weather in September.
In May, temperatures in the region range from a minimum of 12°C (54°F) to a maximum of 32°C (90°F), with an average of 18°C (65°F). The month experiences relatively low precipitation of 32 mm (1.3 in) over about 6 days, and the humidity sits at 73%. In contrast, October shows a slight increase in minimum and average temperatures, with lows around 15°C (60°F) and an average of 20°C (69°F), peaking at 29°C (84°F). However, October also brings significantly more precipitation at 91 mm (3.6 in) over approximately 13 days, while humidity remains constant at 73%. For more details on the conditions during this month, check out Palermo weather in October.
May and November display distinct weather characteristics that significantly impact outdoor activities and comfort levels. In May, temperatures range from a minimum of 12°C (54°F) to a maximum of 32°C (90°F), offering warm, sunny days with an average of 18°C (65°F). This month experiences relatively low precipitation, totaling 32 mm (1.3 in) over about 6 days, alongside a humidity level of 73%.
Conversely, November brings cooler temperatures, with averages around 17°C (63°F) and a maximum of just 23°C (74°F). It is markedly wetter, receiving 94 mm (3.7 in) over 12 days, and has a slightly higher humidity of 76%. This shift towards cooler and wetter conditions can influence both the climate and activities in the region. For more detailed information on November weather specifics, visit Palermo weather in November.
May and December exhibit distinct weather patterns that reflect the transition from spring to winter. In May, temperatures range from a minimum of 12°C (54°F) to a maximum of 32°C (90°F), with an average temperature of 18°C (65°F). The month sees about 32 mm (1.3 in) of precipitation over approximately 6 days, and the humidity is relatively moderate at 73%. In contrast, December is cooler, featuring a minimum temperature of 9°C (48°F) and a maximum of 20°C (67°F), with an average of 14°C (57°F). This month experiences more rainfall, with total precipitation reaching 94 mm (3.7 in) spread over 13 days, and a slightly higher humidity level of 77%. For more details on how December weather impacts your experience, you can check Palermo weather in December.
As May unfolds in Palermo, the weather beautifully transitions into warmer days, offering a delightful escape from the cooler months that preceded it. With maximum temperatures reaching a comfortable 32°C (90°F) and an average of 18°C (65°F), this month marks the beginning of the vibrant Mediterranean warmth. However, compared to the cooler spring months, May can also bring occasional rain, with about 6 days of precipitation adding to a total of 32 mm (1.3 in)—a stark contrast to the drier conditions of summer ahead. The humidity level at 73% also contributes to a lush, blooming landscape, making May an ideal time for outdoor explorations. For a deeper dive into the seasonal patterns, visit Palermo Climate.