May Weather in Santa Barbara, Portugal

Last updated: February 24, 2025

In Santa Barbara, Portugal, the weather in May presents a delightful blend of mild temperatures and refreshing breezes. With maximum temperatures reaching 19°C (67°F) and an average of 16°C (62°F), visitors can enjoy comfortable outdoor activities. However, the month is also marked by a minimum temperature of 12°C (53°F), ensuring cool evenings. Rainfall is not uncommon, totaling 54 mm (2.1 in) over approximately 8 days, which enhances the lush landscapes typical of this region. Additionally, high humidity levels at 83% contribute to the vibrant and invigorating atmosphere, making May a captivating time to explore Santa Barbara.

May Temperature in Santa Barbara

In May, Santa Barbara, Portugal, experiences a delightful transition into warmer weather, with temperatures gradually rising from the cooler grips of spring. The minimum temperature typically reaches around 12°C (53°F), while the average hovers comfortably at 16°C (62°F). As the month progresses, residents and visitors can enjoy maximum highs of 19°C (67°F), making it an ideal time for outdoor activities and exploring the stunning coastal scenery. This upward trend in temperatures sets the stage for the even warmer months ahead, signaling the onset of summer with each passing day. Overall, May strikes a perfect balance, offering mild and pleasant conditions that invite everyone to relish in the beauty of Santa Barbara.

May Weather in Santa Barbara: Daily Temperature Highs, Lows, and Averages

The chart illustrates May temperature patterns in Santa Barbara, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec615959596265697271686462
Data source: Temperature data for Santa Barbara 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 Santa Barbara

In May, Santa Barbara, Portugal experiences a moderate precipitation total of 54 mm (2.1 in), with rain typically gracing the region on 8 days. This amount is notably lower than the preceding month of April, which saw 76 mm (3.0 in) over 13 days, indicating a gentle easing into the drier summer months. As the region transitions to June, the rainfall continues to diminish, dropping to 43 mm (1.7 in), suggesting a definite trend towards decreased precipitation. This shift not only enhances outdoor activities but also offers a vibrant landscape as local flora flourishes before the summer's embrace.

May Precipitation Trends in Santa Barbara

The chart displays monthly precipitation patterns in Santa Barbara, 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.
JanFebMarAprMayJunJulAugSepOctNovDec78774976544322474683107121
Data source: Precipitation data for May generated using information from the Copernicus Climate Change Service.
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May Humidity in Santa Barbara

In Santa Barbara, Portugal, May presents a comfortable transition in humidity, averaging 83% as it bids farewell to the cooler months. This figure aligns closely with the steady humidity levels seen throughout the early part of the year, from January through April, which hover around 84%. As the summer months approach, humidity tends to rise, peaking in July at 86%, while late spring remains relatively stable. Interestingly, August and September follow with a slight dip to 82%, hinting at a seasonally influenced cycle. Overall, while May exudes a pleasantly mild atmosphere, it sets the stage for the more humid days of summer ahead, maintaining a consistent trend that characterizes the region's climate.

May Average Humidity in Santa Barbara

This chart illustrates the average monthly humidity levels in Santa Barbara, 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.
JanFebMarAprMayJunJulAugSepOctNovDec84%83%84%84%83%84%86%82%82%79%80%85%
Data source: Humidity data for May generated using information from the Copernicus Climate Change Service.

May UV Index in Santa Barbara

In May, Santa Barbara, Portugal, experiences a notably high UV Index of 10, categorizing it as very high exposure, with a burn time of just 15 minutes. This sharp increase from the more moderate levels seen earlier in the year, peaking in April at 9, indicates a trend toward heightened sun intensity as spring progresses. With summer fast approaching, the UV Index will continue to rise, reaching extreme levels in the following months. Such trends highlight the importance of sun protection during this time; visitors should be mindful of the sun's potential to cause harm. For more insights on UV levels throughout the year, visit Santa Barbara UV Index.

Maximum UV Index Levels in Santa Barbara for May

The chart shows the monthly maximum UV Index (UVI) for Santa Barbara 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.
JanFebMarAprMayJunJulAugSepOctNovDec3579101110109743
Data source: Santa Barbara 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 Santa Barbara

In Santa Barbara, Portugal, the arrival of May marks a vibrant turning point in the sun-soaked calendar, boasting an impressive 336 hours of sunshine. This month sees a delightful rise in daylight that continues to build from January's modest 147 hours. As the seasons transition, sunshine hours increase steadily, culminating in the peak of July with 380 hours basking the region in its warm embrace. This upward trend not only highlights the charm of the spring and summer months but also sets the stage for the gradual decline as autumn approaches, with October still enjoying a robust 266 hours. Here, May stands out not just as a month of warmth and light, but as a promise of the sun-drenched summer days ahead.

Monthly Sunshine Duration in Santa Barbara: May Highlighted

The May sunshine duration represents the total number of hours Santa Barbara 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.
JanFebMarAprMayJunJulAugSepOctNovDec147h204h261h290h336h353h380h357h317h266h205h194h
Data source: Santa Barbara May Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Santa Barbara During May

As spring unfolds in Santa Barbara, Portugal, the likelihood of sunny weather begins to brighten up, with May boasting a 32% chance of sunshine. This gradual increase from the 30% chance seen in April reflects a welcoming trend towards more favorable weather as the region moves into the warmer months. Comparing these early spring months, the sunshine probability steadily climbs, leading up to the 43% likelihood in June and peaking at 50% in August. Thus, while May may not be the sunniest month of the year, it certainly marks a pivotal point in the transition to the sun-soaked summer days that Santa Barbara is known for.

Percentage of Sunny Days in May in Santa Barbara

The chart illustrates the percentage of sunny days in Santa Barbara 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 Santa Barbara experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec22%28%27%30%32%43%41%50%40%34%26%30%
Data source: Santa Barbara May chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Santa Barbara in May

As spring unfolds in Santa Barbara, Portugal, May emerges as a delightful month marked by 14 hours of daylight, offering a vibrant transition from the shorter days of winter. Following the gradual increase in daylight from just 9 hours in January to 13 hours in April, May stands out, ushering in the longer days of early summer. This trend continues through June and July, where daylight remains consistent at 14 hours, providing ample time for outdoor activities and exploration. As summer wanes, a gentle decline begins in August, linking the warm, sun-soaked days of summer to the cooler months ahead. The gradual ebb in daylight, from 13 hours in August down to 10 hours by November, signifies nature’s rhythm, inviting residents and visitors alike to relish in the beauty of longer days while they last.

Average Daylight Hours in Santa Barbara for May

The chart illustrates the variation in daylight duration in Santa Barbara throughout the year, with May highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 47m10h 45m11h 58m13h 13m14h 17m14h 48m14h 32m13h 35m12h 23m11h 8m10h 3m9h 29m
Data source: Santa Barbara daylight hours, calculated by summing the hours between sunrise and sunset for each day.

May Winds in Santa Barbara

In Santa Barbara, Portugal, the wind patterns reveal a captivating seasonal rhythm. May, with an average wind speed of 6.6 m/s (15 mph), reflects a transition from the brisker winds of spring. While the month experiences similar speeds to March, the overall trend shows a gradual decline from the higher gusts of earlier months, such as January and February, which boast average wind speeds of 10.4 m/s and 11.1 m/s, respectively. This pattern continues into the summer months, where the winds soften further, often hovering around 6.3 to 6.1 m/s. As autumn approaches, the winds pick up slightly again in November and December, but May stands out as a month of gentle breezes, perfect for outdoor activities and embracing the serene coastal atmosphere.

Average May Wind Speed in Santa Barbara

The chart displays monthly wind speed patterns in Santa Barbara, 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.
JanFebMarAprMayJunJulAugSepOctNovDec10.411.16.68.06.6 m/s4.86.36.16.26.68.48.9
Data source: Santa Barbara May wind data, generated using information from the Copernicus Climate Change Service.

How May Weather in Santa Barbara Compares to Other Months

The weather in Santa Barbara 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 Santa Barbara and find detailed weather information for every month.

In comparing the weather of May and January, we find that both months share similar temperature ranges, with minimums around 11-12°C (52-53°F) and maximums reaching 19°C (66-67°F). However, May generally enjoys slightly more stability in terms of average temperatures, typically around 16°C (61°F), while January can feel quite similar but with a min of 11°C (52°F). Rainfall is more pronounced in January, with approximately 78 mm (3.1 in) over 11 days compared to May's 54 mm (2.1 in) over 8 days, indicating a wetter experience in the earlier month. Humidity levels are comparable, remaining high at around 83-84%. For more detailed information, you can check Santa Barbara weather in January.

When comparing the weather in May and February, we notice some notable differences. In May, temperatures range from a minimum of 12°C (53°F) to a maximum of 19°C (67°F), with an average of 16°C (62°F). In contrast, February features slightly cooler temperatures, with a minimum of 10°C (51°F) and a maximum of 18°C (65°F), averaging 15°C (59°F). Additionally, February experiences more precipitation, totaling 77 mm (3.0 in) over 13 days, compared to May's 54 mm (2.1 in) over just 8 days. Both months exhibit the same humidity level of 83%. For more details, you can visit Santa Barbara weather in February.

In comparing the weather of May and March, we see that both months feature mild temperatures, but May tends to be slightly warmer, with average temperatures reaching 16°C (62°F) compared to March's 15°C (59°F). March starts off with a minimum temperature of 10°C (50°F) and peaks at 18°C (64°F), while May's minimum is slightly higher at 12°C (53°F) and can reach up to 19°C (67°F). Precipitation levels are relatively similar, with May recording 54 mm (2.1 in) over 8 days and March having 49 mm (1.9 in) over 9 days. Humidity remains quite consistent, with May at 83% and March at 84%. To learn more about March weather specifics, you can check Santa Barbara weather in March.

In comparing the weather of May and April, May enjoys slightly warmer temperatures, with minimums of 12°C (53°F) and an average of 16°C (62°F), compared to April's minimum of 10°C (51°F) and average of 15°C (60°F). However, April is wetter, experiencing 76 mm (3.0 in) of precipitation over 13 days, while May sees 54 mm (2.1 in) over just 8 days. Both months have high humidity levels, with April at 84% and May at 83%. For more detailed insights into the weather conditions, you can refer to Santa Barbara weather in April.

May and June showcase a transition in weather patterns, with June generally being warmer and slightly less wet. In May, temperatures range from a minimum of 12°C (53°F) to a maximum of 19°C (67°F), while June sees a rise, with minimum temperatures starting at 15°C (58°F) and reaching up to 22°C (72°F). Precipitation is also lower in June, with 43 mm (1.7 in) over 6 days compared to May's 54 mm (2.1 in) across 8 days. Humidity remains fairly consistent, at 83% in May and increasing slightly to 84% in June. For those interested in specific weather trends, you can find more information here: Santa Barbara weather in June.

May and July present distinct differences in weather patterns. In May, temperatures range from a minimum of 12°C (53°F) to a maximum of 19°C (67°F), with an average of 16°C (62°F). The month sees considerable precipitation, totaling 54 mm (2.1 in) over approximately 8 days, contributing to a high humidity level of 83%. In contrast, July enjoys warmer weather, with temperatures ranging from 18°C (65°F) to 23°C (74°F), and an average of 21°C (70°F). Rainfall is notably less in July, with only 22 mm (0.8 in) over just 3 days, while humidity slightly increases to 86%. For more detailed insights, check out Santa Barbara weather in July.

In May, temperatures range from a minimum of 12°C (53°F) to a maximum of 19°C (67°F), with an average of 16°C (62°F). The month sees about 54 mm (2.1 in) of precipitation over 8 days and experiences high humidity at 83%. In contrast, August offers warmer temperatures, with a minimum of 19°C (66°F) and a maximum reaching 24°C (76°F), averaging around 22°C (72°F). Although August has slightly less precipitation at 47 mm (1.9 in) over the same number of rainy days, the humidity remains relatively stable at 82%. For more details on August weather, you can refer to Santa Barbara weather in August.

May and September present contrasting yet mild weather patterns. In May, temperatures range from a minimum of 12°C (53°F) to a maximum of 19°C (67°F), with an average temperature of 16°C (62°F). The month experiences higher precipitation, totaling 54 mm (2.1 in) over 8 days, and humidity levels are relatively high at 83%. In contrast, September enjoys warmer temperatures, with a minimum of 19°C (66°F) and a maximum of 24°C (76°F), leading to a comfortable average of 22°C (71°F). The precipitation in September is slightly lower at 45 mm (1.8 in) across 10 days, with humidity remaining comparable at 82%. For more details on weather specifics, check out Santa Barbara weather in September.

In comparing May and October weather, May generally features cooler temperatures, with averages around 16°C (62°F), while October offers warmer conditions, averaging 20°C (69°F). October's minimum temperatures start at 15°C (58°F), compared to May's 12°C (53°F), and it boasts maximum temperatures reaching up to 24°C (76°F). Precipitation is more frequent in October, occurring on approximately 12 days with a total of 83 mm (3.3 in), whereas May sees rainfall on about 8 days totaling 54 mm (2.1 in). Interestingly, October has slightly lower humidity at 79% compared to May's 83%. For more details on October weather, you can visit Santa Barbara weather in October.

May and November offer distinct weather experiences, showcasing the transition between spring and late autumn. In May, temperatures range from a mild 12°C (53°F) to a pleasant 19°C (67°F), with an average of 16°C (62°F). The month sees approximately 54 mm (2.1 in) of precipitation over about 8 days, along with relatively high humidity at 83%. In contrast, November is slightly warmer, with temperatures starting at a minimum of 13°C (55°F) and peaking at 22°C (71°F), averaging 18°C (65°F). However, it is also wetter, receiving around 107 mm (4.2 in) of rain spread over 14 days, and maintaining a lower humidity level of 80%. For a detailed comparison, you can explore Santa Barbara weather in November.

In May, the weather in Santa Barbara features mild temperatures with a minimum of 12°C (53°F) and an average of 16°C (62°F), peaking at a maximum of 19°C (67°F). Precipitation is relatively low, averaging 54 mm (2.1 inches) over about 8 days, and humidity sits at around 83%.

In contrast, December experiences slightly warmer temperatures, with a minimum of 12°C (54°F) and an average of 17°C (63°F), reaching a maximum of 20°C (68°F). However, it also sees increased rainfall, with 121 mm (4.8 inches) spread over approximately 13 days, and humidity rises to 85%. For more details, check Santa Barbara weather in December.

Compare Santa Barbara's Climate with Cities Worldwide

Conclusion: What to Expect From May Weather in Santa Barbara

As May unfolds in Santa Barbara, the weather begins to shift, offering a blend of mild warmth and coastal breezes. With average temperatures hovering around a comfortable 16°C (62°F), this month stands out for its temperate charm compared to the cooler spring months. While humidity remains elevated at 83%, the likelihood of rain diminishes as the days progress, resulting in about 8 days of light precipitation and a total of 54 mm for the month. This makes May an ideal time for outdoor activities, as the pleasant climate invites both locals and visitors to enjoy the stunning coastal scenery. For a deeper understanding of what to expect throughout the year, explore more about the Santa Barbara Climate.