Last updated: August 21, 2025
Experience May in Valletta, Malta—a month where sun-kissed days and refreshing breezes beckon. With maximum temperatures reaching 23°C (74°F) and a cozy average of 19°C (66°F), outdoor adventures are irresistible. Although the minimum temperature dips to 15°C (59°F), the warmth prevails, inviting you to explore the rich history and vibrant culture of this stunning capital. Rain is rare, with just 6 mm (0.2 in) of precipitation over two days, making it perfect for sightseeing, while the humidity lingers around 80%, providing a comfortable atmosphere. Embrace spring in Valletta—where every day shines!
In May, Valletta, Malta, experiences a delightful transition into warmer weather, making it an inviting destination for travelers. With minimum temperatures rising to a comfortable 15°C (59°F) and averaging around 19°C (66°F), visitors can enjoy pleasant conditions while exploring the city's historic sites. The days are brightened by a maximum reaching 23°C (74°F), signaling the onset of summer. This month marks a significant warming trend compared to the cooler spring months, setting the stage for even higher temperatures in the coming months. As the island basks in the Mediterranean sun, May offers a perfect blend of warmth and refreshing breezes, inviting everyone to savor the beauty of Valletta.
In May, Valletta experiences a stark decline in precipitation, with only 6 mm (0.2 in) recorded across just 2 days. This marks a continuation of the area's transition into the dryer summer months, following a mere 9 mm (0.4 in) in April. The light rainfall in May contributes to the overall trend of diminishing precipitation, as the Mediterranean climate begins to embrace the warmth and sunshine of summer. This reduction not only enhances outdoor activities but also signifies the shift towards a drier season, paving the way for the vibrant days ahead in the Maltese archipelago.
As spring transitions into summer, May in Valletta, Malta experiences an uptick in humidity, reaching 80%. This marks a significant rise from April's 78%, reflecting the shift towards warmer months. As the year unfolds, humidity levels typically increase, peaking in June at 81% before gradually decreasing through the summer. This trend indicates that while the air becomes more humid during this time, the lushness of Malta's landscape also thrives, creating a vibrant and inviting atmosphere for both residents and visitors. Embracing the warm embrace of May, visitors can enjoy the city's charm amidst the soft, balmy air.
As spring gives way to summer in Valletta, Malta, May brings a very high UV Index of 9, maintaining the intensity noted in April. With a burn time of just 15 minutes, it's crucial to protect your skin during this month, particularly as exposure levels are consistently elevated. This trend of increasing UV radiation continues into June, where the UV Index will peak at 10. The data highlights a significant rise in UV exposure from earlier months, such as January's 3 and February's 5, indicating that as summer approaches, the risk of sunburn grows. Being mindful of sun safety is essential this time of year, and you can learn more about the UV levels by visiting Valletta UV Index.
UV Risk Categories
As May arrives in Valletta, Malta, the city basks in the embrace of 394 hours of glorious sunshine, marking a delightful peak in its radiant spring. This enchanting month contrasts sharply with the subdued light of January, which offers only 223 hours of sun. The trend towards brighter days continues from March’s 339 hours, seamlessly building momentum as April ushers in 353 hours of sun-soaked bliss. May not only signifies a jubilant crescendo in daylight but also prepares the way for the sunniest months of summer, where June and July boast an impressive 397 and 413 hours respectively. Visitors and locals alike revel in the extended daylight, enjoying the vibrant atmosphere that Valletta has to offer during this spectacular season.
As May rolls around in Valletta, Malta, sun-seekers can anticipate a promising 71% chance of sunny weather, making it a delightful time to explore the city’s stunning architecture and vibrant culture. This figure reflects a slight increase from the previous months, particularly April’s 52%, and showcases a transition into the hotter months. The trend continues to rise into June, where the likelihood of sunshine leaps to 79%, setting the stage for the sun-drenched days of summer. With such a favorable forecast, May presents an ideal opportunity to enjoy outdoor activities and bask in the Mediterranean charm before the peak heat of July and August.
As spring transitions into summer, Valletta, Malta, experiences a significant increase in daylight duration, with May boasting an impressive 14 hours of daylight. This monthly progression reveals a clear trend: starting from a modest 10 hours in January and February, the days gradually elongate, peaking during the summer months. By April, daylight reaches 13 hours, and in May, the delightfully long days not only enhance outdoor activities but also foster a vibrant atmosphere as locals and visitors alike bask in the sunlight. As the year progresses, daylight begins to wane, tapering off to 12 hours in September and gradually down to 9 hours by December, painting a picture of changing seasons in this picturesque Mediterranean locale.
In May, Valletta, Malta, experiences a notable shift in wind patterns as the average wind speed drops to 4.9 m/s (11 mph), marking a transition into the calm of the summer months. This is significantly lower than the early spring months, where winds maintained a brisk pace around 6.5 to 6.7 m/s (15 mph). As the city warms, the softer breezes of May invite residents and visitors alike to enjoy the scenic views and vibrant outdoor life. This trend of decreasing wind speeds continues into June, indicating that Valletta is poised for more tranquil days ahead, perfect for leisurely strolls along its historic promenades and stunning coastal vistas.
Weather in Valletta varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Valletta, focusing on differences in temperature, rainfall, humidity, and UV levels.
May and January present contrasting weather patterns. In May, temperatures are milder, ranging from a minimum of 15°C (59°F) to a maximum of 23°C (74°F), with an average of 19°C (66°F). The month sees minimal rainfall, with just 6 mm (0.2 in) over 2 days, and humidity levels are relatively high at 80%. In contrast, January experiences cooler temperatures, with a minimum of 8°C (47°F), an average of 14°C (58°F), and a maximum of 21°C (71°F). This month is also much wetter, receiving 41 mm (1.6 in) of precipitation across 9 days, while humidity sits at a lower 71%. For more details on January weather, visit Valletta weather in January.
May offers a warmer and more pleasant climate compared to February, with temperatures ranging from a minimum of 15°C to a maximum of 23°C, while February sees cooler temperatures between 8°C and 19°C. The average temperature in May is 19°C, significantly higher than February's average of 14°C. Additionally, May experiences much less precipitation, with only 6 mm falling over 2 days, compared to February's 45 mm over 6 days. Humidity levels are slightly higher in May at 80%, but overall, May presents a more enjoyable atmosphere for outdoor activities. For more details on February weather in Valletta, you can check Valletta weather in February.
In comparing the weather between March and May, it's clear that May offers milder and more comfortable conditions. May typically sees minimum temperatures around 15°C (59°F) and an average of 19°C (66°F), with maximums reaching 23°C (74°F). In contrast, March starts cooler, with minimums around 10°C (50°F) and an average temperature of 15°C (58°F), peaking at 20°C (69°F). Additionally, May experiences significantly lower precipitation, with only 6 mm (0.2 in) spread over just 2 days, while March averages 36 mm (1.4 in) over 6 days—making it a much wetter month. The humidity is also higher in May at 80%, compared to March's 73%, potentially making it feel a bit more humid. For more detailed information on March weather, visit Valletta weather in March.
In comparing the weather of May and April, May offers a warmer experience with average temperatures rising to 19°C (66°F), compared to April's cooler average of 16°C (61°F). The maximum temperature in May reaches 23°C (74°F), while April tops out at 19°C (67°F). Although both months experience some rainfall, May is notably drier, with only 6 mm (0.2 in) of precipitation over 2 days, in contrast to April's 9 mm (0.4 in) across 3 days. Humidity remains relatively high in both months, with May slightly higher at 80% compared to April's 78%. For more details on April weather, visit Valletta weather in April.
May and June exhibit a noticeable shift in weather patterns. In May, temperatures range from a minimum of 15°C (59°F) to a maximum of 23°C (74°F), with an average of 19°C (66°F). The month experiences light precipitation, totaling 6 mm (0.2 in) over 2 days, and maintains a high humidity level of 80%. In contrast, June sees warmer temperatures, with a minimum of 18°C (64°F) and a maximum reaching 29°C (84°F), averaging 23°C (73°F). Additionally, June enjoys drier conditions, recording only 3 mm (0.1 in) of precipitation and no rainy days, while humidity slightly increases to 81%. For more detailed information, check out the Valletta weather in June.
In May, the weather features mild temperatures with a minimum of 15°C (59°F) and an average of 19°C (66°F), peaking at 23°C (74°F). It typically sees some precipitation, averaging 6 mm (0.2 in) over 2 days, accompanied by a relatively high humidity level of 80%. In contrast, July offers a more summery climate, with a minimum temperature of 21°C (71°F) and an average high of 26°C (78°F), reaching up to 29°C (85°F) on the warmest days. Remarkably, July experiences no rainfall at all, and the humidity is slightly lower at 78%. For a detailed look at July weather patterns, you can check Valletta weather in July.
In May, the weather is generally mild, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 23°C (74°F) and an average of 19°C (66°F). The month sees an average precipitation of 6 mm (0.2 in) across about 2 days, resulting in a humidity level of around 80%. In contrast, August boasts warmer temperatures, with a minimum of 23°C (74°F) and highs reaching up to 31°C (88°F), averaging 27°C (81°F). Precipitation is minimal in August, with only 4 mm (0.1 in) recorded over no rainy days and a slightly lower humidity of 77%. For more specifics on the warm August climate, you can explore Valletta weather in August.
In May, the weather is generally mild, with average temperatures ranging from a minimum of 15°C (59°F) to a maximum of 23°C (74°F), accompanied by relatively low precipitation of just 6 mm (0.2 in) over about 2 days. The humidity is notably high at 80%, adding a touch of mugginess to the pleasant spring weather.
In contrast, September sees warmer temperatures, with averages between 20°C (69°F) and 28°C (83°F). It experiences a higher level of precipitation, totaling 25 mm (1.0 in) across about 5 days, while humidity slightly decreases to 77%. The warmer, slightly more humid conditions make September a different but equally enjoyable experience. For more details, check out Valletta weather in September.
In comparing the weather of May and October, it's clear that October tends to be warmer overall, with average daytime temperatures reaching up to 22°C (72°F) compared to May's average of 19°C (66°F). Additionally, October experiences a higher maximum temperature of 29°C (85°F), significantly warmer than May's peak of 23°C (74°F). However, October also brings increased precipitation, accumulating 111 mm (4.4 in) over 9 rainy days, which starkly contrasts with May's much drier conditions of just 6 mm (0.2 in) over only 2 days. The humidity levels are slightly lower in October at 73%, while May is more humid with 80%. For further details, you can check Valletta weather in October.
May and November exhibit mild temperatures, though they differ significantly in precipitation and humidity. In May, temperatures range from a minimum of 15°C (59°F) to a maximum of 23°C (74°F), with an average of 19°C (66°F). The month sees relatively low precipitation of just 6 mm (0.2 in) over only 2 days, accompanied by higher humidity levels at 80%. In contrast, November maintains a similar average temperature of 19°C (67°F), but its temperatures fluctuate between 13°C (56°F) and 24°C (76°F). However, November is characterized by much higher rainfall, accumulating 109 mm (4.3 in) over 13 days, and lower humidity at 71%. For more detailed weather information, visit Valletta weather in November.
In comparing the weather of May and December, one can observe noticeable differences in temperature and precipitation. May enjoys milder temperatures, with an average of 19°C (66°F) and maximums reaching up to 23°C (74°F), while December sees cooler conditions, averaging 16°C (61°F) and peaking at 20°C (69°F). Precipitation levels also vary significantly; May is relatively dry, with only 6 mm (0.2 in) over 2 days, whereas December experiences more rainfall, accumulating 58 mm (2.3 in) over 9 days. Additionally, humidity levels are higher in May at 80%, compared to December's 70%. For more details, you can refer to Valletta weather in December.
As May settles in, Valletta experiences a delightful transition from the cooler spring months to the warmth of summer. With average temperatures comfortably hovering around 19°C (66°F), this month offers a pleasant climate for both locals and visitors. The humidity reaches about 80%, providing a touch of balmy warmth, yet the minimal precipitation—with only a couple of rainy days—ensures the sun shines brightly for most of the month. This favorable weather makes May an ideal time to explore the historical sites and vibrant culture of Valletta. For a more in-depth look at what to expect throughout the year, check out Valletta Climate.