May Weather in Portofino, Italy

Last updated: March 24, 2025

May in Portofino, Italy brings a delightful Mediterranean climate, where temperatures peak at an inviting 26°C (78°F), offering abundant sunshine and mild evenings with an average of 17°C (62°F). As spring flourishes, expect a refreshing touch of light rain, with approximately 107 mm (4.2 in) of precipitation over 13 days, contributing to the region's lush landscapes. The humidity levels hover around 74%, enhancing the vibrant floral beauty while creating a comfortable atmosphere for visitors to explore this picturesque coastal gem. Experience the enchanting blend of warmth and gentle rain that makes May a charming time to visit Portofino.

May Temperature in Portofino

May in Portofino, Italy ushers in a delightful transition to warmer weather, with temperatures ranging from a minimum of 9°C (49°F) to a pleasant maximum of 26°C (78°F). The average temperature reaches a comfortable 17°C (62°F), creating the perfect backdrop for exploring the charming coastal scenery. As spring matures, the region experiences a notable increase from the cooler April temps, marking a significant leap in warmth that invites locals and travelers alike to savor the emerging vibrancy of this Mediterranean gem. With the sunshine becoming increasingly generous, May sets the stage for memorable outdoor activities and leisurely strolls along the picturesque waterfront.

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

The chart illustrates May temperature patterns in Portofino, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec505152566270757671645752
Data source: Temperature data for Portofino 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 Portofino

In May, Portofino experiences a delightful transition between spring and summer, marked by 107 mm (4.2 in) of rainfall spread across 13 days. This moderate precipitation reflects a slight increase from April's 93 mm, as the region prepares for warmer months ahead. The frequency of rainy days in May mirrors the trend of previous months, suggesting a steady spring pattern that often features brief, refreshing showers. As the landscape blooms with vibrant colors, the rainfall contributes to the lush scenery, making Portofino a picturesque destination. Looking towards June, the rainfall decreases significantly, signaling the onset of a drier, sunnier season.

May Precipitation Trends in Portofino

The chart displays monthly precipitation patterns in Portofino, 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.
JanFebMarAprMayJunJulAugSepOctNovDec921211169410740303585211216194
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Portofino

In May, Portofino, Italy, experiences a pleasant transition in humidity, with levels at a comfortable 74%. This marks a gradual decline from the wetter months of winter and early spring, where humidity peaked at 88% in January and 81% in February. As spring progresses, the drop in humidity to 74% in May sets the stage for the drier summer months ahead, culminating in July and August's seasonal lows of 67% and 64%, respectively. This trend showcases Portofino's charming climate, inviting visitors to explore its breathtaking scenery while enjoying milder, less humid conditions as the season unfolds.

May Average Humidity in Portofino

This chart illustrates the average monthly humidity levels in Portofino, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%81%76%77%74%71%67%64%74%87%88%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Portofino

As spring transitions to summer in Portofino, May marks a notable rise in UV exposure, with the UV Index peaking at 8, categorized as very high. This surge indicates a significant increase in the sun's intensity compared to earlier months; for instance, January's low UV Index of 2 and a burn time of 45 minutes pale in comparison to May’s brevity of 15 minutes before harmful effects kick in. Following this trend, both June and July will keep the UV Index at a striking 9, demanding vigilance from sunbathers. As the season progresses, it’s essential for visitors and locals alike to stay informed and protected. For more detailed insights, check the Portofino UV Index.

Maximum UV Index Levels in Portofino for May

The chart shows the monthly maximum UV Index (UVI) for Portofino 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.
JanFebMarAprMayJunJulAugSepOctNovDec236789987532
Data source: Portofino 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 Portofino

In May, Portofino basks in a delightful average of 389 hours of sunshine, marking a significant increase from the 347 hours seen in April. This upward trajectory continues as the days grow longer and warmer, making May an ideal time for travelers to immerse themselves in the coastal beauty of this Italian gem. With the sun becoming more generous, adventures abound—whether it's enjoying a leisurely day on the beach or exploring the charming streets lined with colorful villas. As the spring unfolds, the warmth of May hints at the approaching summer, where sunshine peaks further in June and July, promising an exuberant and vibrant atmosphere for all who visit.

Monthly Sunshine Duration in Portofino: May Highlighted

The May sunshine duration represents the total number of hours Portofino 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.
JanFebMarAprMayJunJulAugSepOctNovDec187h230h310h347h389h413h427h398h341h297h227h217h
Data source: Portofino May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Portofino During May

May in Portofino, Italy, offers a moderate chance of sunny weather, with approximately 45% likelihood of sunshine. While this statistic shows a slight dip compared to April's 50%, it still contributes to the overall trend of increasing sun-filled days as the year progresses. From the early months of the year, where chances are as low as 37% in January, Portofino gradually sees a rise in sunny days leading into the summer, peaking at 63% in August. Thus, while May presents a cozy window for travelers, the surrounding months hint at a promising shift toward brighter days ahead.

Percentage of Sunny Days in May in Portofino

The chart illustrates the percentage of sunny days in Portofino 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 Portofino experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec37%47%61%50%45%55%57%63%54%54%40%47%
Data source: Portofino May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Portofino in May

As spring unfolds in Portofino, Italy, the length of daylight steadily increases, offering longer and brighter days. January starts with 9 hours of daylight, gradually expanding to a delightful 14 hours by May. This transition marks a vibrant shift, where the increasing sunlight fosters an inviting atmosphere for visitors and locals alike. The longest days peak in June and July, each boasting 15 hours of daylight, perfect for lounging along the picturesque coastline. As summer fades into autumn, daylight begins to wane, with August still enjoying 13 hours before dipping back down to 10 hours by October. The cycle then concludes with the shorter days of winter, returning to 9 hours in November. This pattern of increasing and then gradually decreasing daylight highlights the seasonal rhythms that define the beauty of Portofino throughout the year.

Average Daylight Hours in Portofino for May

The chart illustrates the variation in daylight duration in Portofino throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 15m10h 27m11h 56m13h 28m14h 47m15h 27m15h 6m13h 56m12h 28m10h 56m9h 35m8h 53m
Data source: Portofino daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Portofino

In Portofino, Italy, May brings a gentle shift in the breeze, with an average wind speed of 3.9 m/s (9 mph). This is a slight increase from the calmer winds experienced in the preceding months of March and April, both recorded at 3.7 m/s (8 mph). As the spring months come to a close, the coastal air becomes a little more invigorating, setting the stage for a lively atmosphere ahead of summer. Interestingly, wind speeds begin to taper off in June, sliding down to 3.0 m/s (7 mph), showcasing how May acts as a transitional period where the refreshing winds of spring start to soften, enhancing the enchanting allure of this picturesque Italian seaside gem.

Average May Wind Speed in Portofino

The chart displays monthly wind speed patterns in Portofino, 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.
JanFebMarAprMayJunJulAugSepOctNovDec5.04.43.73.73.9 m/s3.03.43.43.04.65.93.7
Data source: Portofino May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Portofino Compares to Other Months

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

May and January exhibit distinctly different weather patterns. In May, temperatures range from a minimum of 9°C (49°F) to a maximum of 26°C (78°F), with an average temperature of 17°C (62°F). The month experiences 107 mm (4.2 in) of precipitation over 13 days and has a humidity level of 74%. In contrast, January is cooler, with a minimum temperature of 4°C (40°F) and a maximum of 16°C (61°F), averaging only 10°C (50°F). This month has 92 mm (3.6 in) of precipitation over 10 days, but it is characterized by higher humidity at 88%. For more detailed information about January weather, check out Portofino weather in January.

When comparing the weather in May and February, a noticeable difference in temperature can be observed. May typically experiences milder conditions, with average temperatures ranging from a minimum of 9°C (49°F) to a maximum of 26°C (78°F), while February remains much cooler, with temperatures between -1°C (31°F) and 17°C (62°F). Precipitation levels are relatively similar, with February experiencing slightly more at 121 mm (4.8 in) compared to May's 107 mm (4.2 in), both months averaging rainfall over 13 days. Humidity is somewhat higher in February at 81%, compared to May's 74%, making February feel a bit more damp. For more detailed information, you can check Portofino weather in February.

In March, the weather is significantly cooler, with average temperatures ranging from a minimum of 1°C (34°F) to a maximum of 18°C (64°F), compared to May, which offers a much warmer climate with temperatures ranging from 9°C (49°F) to 26°C (78°F). While March experiences slightly higher precipitation at 116 mm (4.6 in) over 11 days, May sees a bit less rain, totaling 107 mm (4.2 in) over 13 days. Humidity levels are also comparable, with March at 76% and May slightly lower at 74%. For more detailed insights, you can visit Portofino weather in March.

In comparing the weather between April and May, May generally exhibits warmer temperatures with a minimum of 9°C (49°F) and an average of 17°C (62°F), compared to April, which has a minimum of 6°C (43°F) and an average of 13°C (57°F). The maximum temperatures also rise in May to 26°C (78°F), whereas April peaks at 22°C (71°F). Additionally, May experiences slightly higher precipitation, totaling 107 mm (4.2 in) over 13 days, compared to April's 93 mm (3.7 in) over 8 days. Humidity levels are somewhat lower in May at 74%, while April's humidity is a bit higher at 77%. For more specifics on April weather, you can check Portofino weather in April.

May and June exhibit notable differences in weather patterns. In May, temperatures range from a minimum of 9°C (49°F) to a maximum of 26°C (78°F), with an average of 17°C (62°F) and considerable precipitation of 107 mm (4.2 in) over 13 rainy days. The humidity level is relatively high at 74%. In contrast, June sees a rise in temperatures, with a minimum of 15°C (60°F), an average of 21°C (70°F), and a maximum of 29°C (85°F). Rainfall decreases significantly to just 40 mm (1.6 in) over 7 days, and humidity drops slightly to 71%. For more detailed information, check out Portofino weather in June.

When comparing the weather in May and July, there is a noticeable shift in temperature and precipitation. May experiences a wider temperature range, with minimums dipping to 9°C (49°F) and maximums reaching up to 26°C (78°F), while July boasts warmer average temperatures, starting at a minimum of 19°C (66°F) and peaking at 29°C (85°F). Additionally, May sees significantly more rainfall, accumulating 107 mm (4.2 in) over 13 days, compared to July's 30 mm (1.2 in) across just 5 days. While May has a higher humidity level at 74%, July's humidity is slightly lower at 67%. For a closer look at July weather specifics, you can visit Portofino weather in July.

When comparing the weather in May and August, a notable difference in temperatures is evident. May experiences cooler conditions, with average temperatures ranging from a minimum of 9°C (49°F) to a maximum of 26°C (78°F), while August boasts warmer averages, with temperatures starting at 19°C (66°F) and peaking at 30°C (87°F). Additionally, May is characterized by higher precipitation levels, receiving around 107 mm (4.2 in) over approximately 13 days, whereas August typically sees only 35 mm (1.4 in) of rain across about 5 days. Humidity is also higher in May at 74%, compared to a more comfortable 64% in August, making late summer a preferable time for those seeking drier and warmer weather. For more detailed insights into August weather, visit Portofino weather in August.

May and September both offer mild temperatures, but they present distinct differences in climate. In May, temperatures range from a minimum of 9°C (49°F) to a maximum of 26°C (78°F), with an average of 17°C (62°F). The month sees a fair amount of rain, with 107 mm (4.2 in) of precipitation spread over 13 days, all while maintaining a humidity level of 74%. By contrast, September warms up slightly, featuring minimum temperatures of 15°C (59°F) and maxima reaching 28°C (82°F), averaging at 22°C (71°F). The rainfall decreases to 85 mm (3.3 in) over just 9 days, yet humidity remains steady at 74%. For a closer look at the weather specifics in September, you can visit Portofino weather in September.

In comparing the weather in May and October, we notice several key differences. May typically enjoys a milder climate with temperatures ranging from a minimum of 9°C (49°F) to a maximum of 26°C (78°F), while October experiences slightly warmer averages with minimums of 13°C (55°F) and maximums of 24°C (75°F). However, October also brings increased precipitation, with 211 mm (8.3 in) falling over 11 days compared to May's 107 mm (4.2 in) over 13 days. Additionally, the humidity levels rise in October to 87% from May's 74%, making the atmosphere feel more humid. For those interested in exploring how the weather specifically affects Portofino, you can visit Portofino weather in October.

May and November in Portofino present contrasting weather patterns. In May, temperatures range from a pleasant minimum of 9°C (49°F) to a warm maximum of 26°C (78°F), averaging around 17°C (62°F). The month experiences about 107 mm (4.2 inches) of precipitation over approximately 13 days, with a humidity of 74%. In contrast, November sees cooler temperatures, with a minimum of 7°C (45°F) and a maximum of 19°C (67°F), averaging 14°C (57°F). The month is wetter, receiving around 216 mm (8.5 inches) of rainfall over 17 days, accompanied by higher humidity levels at 88%. For more detailed information, visit Portofino weather in November.

May and December present distinct weather patterns. In May, temperatures range from a minimum of 9°C (49°F) to a maximum of 26°C (78°F), with an average of 17°C (62°F). Precipitation is moderate at 107 mm (4.2 in) over about 13 days, and humidity stands at 74%. In contrast, December tends to be cooler, with temperatures ranging from a low of 5°C (42°F) to a high of 16°C (62°F) and an average of 11°C (53°F). This month sees higher precipitation at 194 mm (7.6 in) across approximately 15 days, along with increased humidity levels at 85%. For more detailed insights, check out Portofino weather in December.

Compare Portofino's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Portofino

As May arrives in Portofino, the weather transitions into a delightful spring warmth that sets it apart from the cooler, wetter months preceding it. With temperatures averaging a comfortable 17°C (62°F), this month invites you to explore the stunning coastline and vibrant village life. While you might encounter some rain, with 13 precipitation days totaling around 107 mm (4.2 in), the overall humidity at 74% ensures a refreshing atmosphere. In contrast to the harsher winter weather and the blazing heat of summer, May strikes a perfect balance, making it an ideal time for soaking in the breathtaking beauty of this Italian gem. For a more detailed understanding of what to expect, explore Portofino Climate.