Last updated: February 24, 2025
Experience the charms of Portimao, Portugal in May, where the weather unfolds a delightful mix of warmth and sunshine. With maximum temperatures reaching up to 34°C (93°F) and an average of 19°C (66°F), outdoor enthusiasts will find plenty of opportunities to bask in the sun. Evenings can cool down with a minimum of 7°C (45°F), perfect for cozy gatherings. While the month receives a modest 23 mm (0.9 in) of rain spread over just 4 days, a humidity level of 69% ensures the air feels refreshing. Whether you’re lounging on the beach or exploring the vibrant local culture, May in Portimao promises an inviting Mediterranean climate to enjoy all your summer activities.
In May, Portimao transforms into a vibrant summer preview, with temperatures ranging from a pleasant min of 7°C (45°F) to a sizzling max of 34°C (93°F). The average temperature hovers around 19°C (66°F), making it an ideal time to enjoy the sun-drenched beaches before the summer heat peaks. This month marks a significant transition, as daily highs climb steadily—up from the previous month’s cap of 29°C (84°F) in April. The increasing warmth indicates that outdoor activities are becoming more appealing, with bright sunny days inviting visitors and locals alike to embrace the beauty of this picturesque coastal town.
In May, Portimão experiences a notable shift towards drier conditions, with average precipitation dropping to 23 mm (0.9 in), occurring over just 4 days. This pattern follows the wetter months of March and April, where rain totals were significantly higher at 78 mm (3.1 in) and 65 mm (2.5 in), respectively. As spring transitions into summer, May marks a noticeable decrease in rainfall, setting the stage for the even drier months ahead, where June sees a minimal 8 mm (0.3 in). This trend highlights Portimão’s characteristic Mediterranean climate, characterized by a sunny disposition and dwindling rainfall as the summer approaches, inviting visitors to enjoy its beautiful scenery under clearer skies.
In May, Portimão, Portugal experiences a comfortable humidity level of 69%, which is consistent with the preceding months of April and lower than the humid conditions seen earlier in the year. This marks a notable trend as humidity gradually decreases from its peak of 80% in January to a milder atmosphere by late spring. Following May, June sees a slight dip to 67%, positioning this month as a transition into the warmer, drier summer months. Overall, the humidity levels reflect a steady decline, creating an enjoyable climate for residents and visitors alike as they approach the vibrant summer season.
In May, Portimão experiences a significant rise in the UV Index, peaking at 10, which falls into the very high exposure category. This indicates that sun protection measures are essential, as the burn time decreases to just 15 minutes, reflecting the growing intensity of the sun compared to earlier months. Following a gradual climb from January's UV Index of 3, the trend sharply escalates, particularly from April, where it reached 9. As summer approaches, visitors and locals alike should remain vigilant against sun exposure during this month, taking precautions to enjoy the beautiful outdoor activities that Portimão has to offer. For more details, visit Portimao UV Index.
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In May, Portimão basks in its sunniest glory, enjoying a delightful 410 hours of sunshine that marks a peak in the spring season. Following the blossoming days of April, which already brought 359 hours, May's radiant days lay the groundwork for the sun-drenched summer months ahead. As the year progresses, the sunshine continues to intensify, with June just slightly edging ahead at 412 hours. This consistent upward trend from the slightly cooler months of winter and early spring highlights Portimão as a lovely destination for those seeking warmth and light. The gradual progression of sunshine hours serves as a gentle reminder of the vibrant, enjoyable days that await in this picturesque corner of the Algarve.
May in Portimão, Portugal, marks a delightful transition into more reliable sunny weather, boasting a 65% chance of sunshine. This increase from April's 38% signals the start of a more vibrant season, paving the way for the sunnier months ahead. As the year progresses, the likelihood of sun continues to soar, with July and August peaking at 87% and 84%, respectively. This upward trend underscores May as a fantastic time to enjoy the blossoming landscapes and outdoor activities, while still avoiding the peak tourist traffic of summer. Overall, the month promises a refreshing balance of pleasant weather and vibrant surroundings, making it an ideal choice for visitors seeking both relaxation and exploration.
As spring unfolds in Portimão, Portugal, the length of daylight steadily increases, peaking in May with an inviting 14 hours of sunlight. This transition from 11 hours in March to 14 hours signals the arrival of longer, warmer days, creating the perfect backdrop for outdoor activities and exploration. The longer daylight continues into June, maintaining the 14-hour mark before gradually tapering off through the summer months. By September, daylight recedes to 12 hours, leading into the final quarter of the year where the cycle returns to 10 hours in November. This rhythm of lengthening and shortening daylight not only marks the changing seasons but also enhances the vibrant lifestyle that Portimão offers throughout the year.
In May, Portimão experiences a refreshing uptick in wind speed, averaging 4.1 m/s (9 mph), making it one of the windiest months of the year. This pleasant breeze follows the gentle decline observed in April, where wind speeds dipped to 3.2 m/s (7 mph). As spring transitions into summer, the winds begin to pick up, setting a lively tone for outdoor activities and watersports. Interestingly, this increase is mirrored in the July data, peaking at 4.3 m/s (10 mph), suggesting that May serves as a springboard for the energetic summer winds to come. With the scenery of Portimão's stunning coastline, May’s lively winds invite both locals and tourists alike to revel in the outdoors and enjoy the exhilarating atmosphere.
The weather in Portimao 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 Portimao and find detailed weather information for every month.
In May, temperatures range from a cool 7°C (45°F) at night to a warm 34°C (93°F) during the day, with an average of 19°C (66°F). The month experiences relatively low precipitation, averaging 23 mm (0.9 in) over four days and boasts a comfortable humidity level of 69%. In contrast, January is much chillier, with temperatures dipping as low as -2°C (29°F) at night and peaking at 21°C (70°F), averaging 10°C (51°F). Although January sees similar precipitation levels at 24 mm (0.9 in) over just three days, the humidity is higher at 80%, contributing to a notably different feel. For more details on January weather, visit Portimao weather in January.
May and February offer contrasting weather conditions. In May, temperatures range from a minimum of 7°C (45°F) to a maximum of 34°C (93°F), with an average of 19°C (66°F), making it considerably warmer than February, which has a minimum of just 1°C (34°F) and a maximum of 24°C (76°F), averaging 12°C (55°F). Additionally, May experiences less precipitation, totaling 23 mm (0.9 in) over 4 days, compared to February's 44 mm (1.7 in) over 5 days. Humidity levels are also slightly lower in May at 69%, while February sees a higher average of 73%. For more details on February's climate, you can visit Portimao weather in February.
In comparing the weather of May and March, May typically offers warmer temperatures with a minimum of 7°C (45°F) and an average of 19°C (66°F), while March has a cooler minimum of 3°C (38°F) and average temperatures around 14°C (57°F). The maximum temperatures also reflect this trend, with May reaching up to 34°C (93°F) compared to March's 27°C (81°F). However, March experiences significantly higher precipitation, totaling 78 mm (3.1 in) over 9 days, in contrast to May's much drier conditions with only 23 mm (0.9 in) over 4 days. Additionally, both months have comparable humidity levels, with March at 71% and May slightly lower at 69%. For more detailed insights, refer to Portimao weather in March.
When comparing the weather in April and May, we see a significant increase in temperatures during May, with averages soaring to 19°C (66°F) compared to April's 15°C (60°F). May also boasts a higher maximum temperature of 34°C (93°F), while April's peak reaches 29°C (84°F). In terms of precipitation, April is notably wetter, receiving 65 mm (2.5 in) over 11 rainy days, in contrast to May's lighter rainfall of just 23 mm (0.9 in) over 4 days. Interestingly, humidity levels remain consistent at 69% for both months. For more detailed information, you can check the weather conditions for Portimao weather in April.
In comparing the weather between May and June, May tends to have a slightly cooler average temperature, ranging from a minimum of 7°C (45°F) to a maximum of 34°C (93°F), with an average of 19°C (66°F). May also experiences more precipitation, with 23 mm (0.9 in) over four days, while June sees less rain, totaling just 8 mm (0.3 in) over three days. In June, temperatures rise, with a minimum of 11°C (52°F), an average of 21°C (69°F), and a peak of 40°C (105°F). The humidity remains fairly consistent in both months, at 69% for May and slightly lower at 67% for June. For more details on June weather, you can visit Portimao weather in June.
May and July present contrasting weather conditions, with July showcasing warmer temperatures and significantly less precipitation. In May, temperatures range from a cool minimum of 7°C (45°F) to a warm maximum of 34°C (93°F), with an average of 19°C (66°F). The month experiences about 23 mm (0.9 in) of rain over approximately 4 days. In contrast, July enjoys milder nights with a minimum of 12°C (55°F) and a higher average temperature of 23°C (74°F), reaching up to a scorching maximum of 39°C (103°F). Rainfall is minimal in July, totaling just 3 mm (0.1 in) over only 1 day. Both months share a consistent humidity level of 69%, but July's drier climate and elevated temperatures typically create a more summery experience. For more details on July weather, check this link: Portimao weather in July.
The weather in May is quite variable, with temperatures ranging from a cool 7°C (45°F) at night to a warm maximum of 34°C (93°F) during the day, accompanied by about 23 mm (0.9 in) of precipitation over four days. In contrast, August boasts more stable and hotter conditions, featuring minimum temperatures of 14°C (57°F) and soaring highs of up to 43°C (110°F), all while remaining largely dry and with an impressive lack of precipitation. With humidity levels comparable at 69% in May and slightly lower at 68% in August, the overall weather experience shifts dramatically from the mild and somewhat damp conditions of spring to the intense heat of summer. For more detailed information, check out Portimao weather in August.
In May, the weather can range from a cool 7°C (45°F) at night to a warm average of 19°C (66°F), with maximum temperatures peaking at 34°C (93°F). The month typically experiences about 23 mm (0.9 in) of precipitation over four days, maintaining a humidity level of 69%. In contrast, September boasts slightly warmer temperatures, with a minimum of 11°C (52°F) and an average of 22°C (73°F), reaching up to 37°C (98°F). It is also drier, with just 8 mm (0.3 in) of precipitation over one day and a slightly higher humidity of 71%. For more details, you can check out Portimao weather in September.
May and October share similar average temperatures, both hovering around 19°C (66°F), with maximums peaking at 34°C (93°F). However, October experiences slightly cooler minimum temperatures, starting at 8°C (46°F) compared to May's 7°C (45°F). In terms of precipitation, October is wetter with 32 mm (1.2 in) compared to May’s 23 mm (0.9 in), although both months have about four days of rain. Additionally, humidity levels are higher in October at 75%, compared to May's 69%. For more information, you can visit Portimao weather in October.
May typically boasts warmer temperatures, with averages around 19°C (66°F) and highs reaching up to 34°C (93°F), while November's average temperature is significantly cooler at 14°C (58°F), peaking at 25°C (76°F). In terms of precipitation, May sees less rain with only 23 mm (0.9 in) over about 4 days, whereas November experiences a wetter climate, accumulating 49 mm (1.9 in) across roughly 7 days. Additionally, November has a higher humidity level at 78%, compared to May's 69%, contributing to a more damp feeling as the year comes to a close. For more details on the typical weather conditions, you can refer to Portimao weather in November.
May and December present contrasting weather conditions. In May, temperatures range from a pleasant minimum of 7°C (45°F) to a warm maximum of 34°C (93°F), with an average of 19°C (66°F). The month experiences relatively low precipitation, totaling 23 mm (0.9 in) over just 4 days, and humidity is moderate at 69%. In contrast, December sees cooler temperatures, with a minimum of 0°C (33°F) and a maximum of 22°C (71°F), averaging 12°C (54°F). Rainfall is more significant during this month, accumulating 45 mm (1.8 in) over 6 days, and the humidity level rises to 81%. For more details on December weather, you can visit Portimao weather in December.
As May unfolds in Portimão, it marks a delightful transition into warmer temperatures, offering a blend of pleasant warmth and manageable humidity. The month sees an average temperature that dances around a comfortable 19°C but can peak at an impressive 34°C, making outdoor activities particularly enjoyable. Unlike the chillier months, May experiences minimal rainfall, with only a few days of precipitation throughout the month, allowing for plenty of sunny escapades. The relatively high humidity may add a touch of lushness to the air, but it's generally bearable. This combination of factors enhances the overall appeal of visiting Portimão in May, making it a prime time to explore the scenic beauty of the region. For more insights on what to expect throughout the year, check out Portimao Climate.