Last updated: August 27, 2025
April in Portoroz, Slovenia is a delightful transition into spring, featuring a maximum temperature of 20°C (68°F) and an average of 13°C (56°F), creating a pleasant atmosphere for outdoor activities. The month experiences a minimum temperature of 5°C (42°F), ensuring cool evenings. Rainfall is present, with 86 mm (3.4 in) of precipitation spread across approximately 8 days, contributing to the region's lush landscapes. Visitors can expect a humidity level of 73%, adding a fresh touch to the coastal air. Overall, April offers a vibrant and mild climate for exploring the beauty of Portoroz.
In April, Portorož, Slovenia begins to shake off the chill of winter, ushering in a refreshing rise in temperatures. The minimum temperature climbs to a mild 5°C (42°F), while the average settles comfortably at 13°C (56°F), providing a pleasant backdrop for outdoor activities. With daytime highs reaching up to 20°C (68°F), April invites locals and visitors alike to embrace the blossoming spring. The transition from the preceding months is evident, as temperatures continue to increase, setting the stage for the warm, vibrant days of May and beyond. This dynamic shift not only enhances the coastal charm of Portorož but also marks a perfect time to explore its stunning scenery.
April in Portorož, Slovenia, sees a moderate uptick in precipitation, with 86 mm (3.4 in) recorded over 8 days of rain. This increase follows the relatively dry months of January and March, both averaging 58 mm, and is in line with the wetter trend we witness as spring blooms into life. While April’s rainfall is less than the 106 mm observed in February and close to May’s expected 105 mm, it stands out as a crucial transitional month, bridging the cooler, drier winter months and the lush, rainier days of late spring. As the landscape flourishes with greenery, those damp April days hint at the vibrant growth to come, setting the stage for the summer months ahead.
In April, Portoroz, Slovenia experiences a humidity level of 73%, mirroring the levels from March. This consistency suggests a transition as spring takes hold, with moisture lingering in the air, ideal for the lush, blooming landscape. As the year progresses, humidity trends show a gradual decline, reaching 70% in May and further dropping to 69% in June. The dip in humidity signals a shift toward warmer, drier summer months, creating a pleasant climate for outdoor activities. Interestingly, humidity levels will begin to rise again in the fall, peaking once more in the late autumn and winter months—highlighting the region's seasonal cycle of moisture.
As spring unfolds in Portoroz, Slovenia, the UV Index sees a significant uptick in April, reaching a level of 6, categorized as high. This marks a noticeable rise from the previous months, particularly from March’s moderate exposure at 5. With a reduced burn time of just 25 minutes, it’s essential for sun enthusiasts to take precautions. This trend signals the approach of summer, with May expected to escalate even further to a very high index of 8. As each month progresses, the UV Index highlights the importance of sun safety, especially during the sunnier days ahead. For more detailed information, check out Portoroz UV Index.
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April in Portoroz, Slovenia, shines brightly with 344 hours of sunshine, marking a significant leap from the 315 hours experienced in March. This surge reflects the transition into spring, where the days grow longer and warmer, inviting both locals and visitors to take advantage of the beautiful weather. As the month progresses, sunshine hours continue to rise, reaching 372 hours in May and peaking at 430 hours in July. This upward trend showcases Portoroz as a vibrant destination, abundant in sunshine, particularly as summer approaches. With each passing month, clear skies and golden rays weave a tapestry of charm, making April a delightful gateway to the sun-soaked days ahead.
In April, the likelihood of sunny weather in Portoroz, Slovenia, shows a slight dip compared to the preceding month, with a 46% chance of sunshine. This is noteworthy considering March boasts a more optimistic 65% chance, indicating that while spring is well underway, early April can be a bit unpredictable. This trend follows a rise in sunny days from the winter months, where January and February are marked by much lower probabilities of sun at 31% and 42%, respectively. As the season progresses into May and June, expectations for sunshine increase again, hinting at the overall trend of improving weather as summer approaches. Thus, while April may not be the sunniest month, it certainly paves the way for brighter days ahead.
As spring unfolds in Portorož, Slovenia, April brings a delightful increase in daylight hours, with 13 hours of sunlight illuminating the landscape. This marks a noticeable shift from the 11 hours seen in March, signaling the transition into warmer months. The trend continues upward as daylight gradually extends, reaching a peak of 15 hours in June and July. This seasonal progression not only enhances the vibrant natural scenery but also invites outdoor activities and social gatherings. As we move from the longer days of summer to the shorter daylight in autumn, April serves as a joyful reminder of the blossoming season ahead, encouraging residents and visitors alike to bask in the sunlit charm of this beautiful coastal town.
In April, Portorož experiences a moderate increase in wind speed, averaging 4.1 m/s (9 mph), slightly higher than the preceding months of January through March. This gentle breeze often heralds the arrival of spring, paving the way for warmer days ahead. The wind speeds continue to rise into May, peaking at 4.5 m/s (10 mph), creating an invigorating atmosphere perfect for outdoor activities. Conversely, the summer months see a slight dip in wind activity, with June and July averaging around 3.1 m/s and 3.4 m/s, respectively. As the year draws to a close, a notable uptick occurs in October and November, where winds reach up to 5.2 m/s (12 mph). This fluctuating trend throughout the year reflects the dynamic climate of Portorož, where the April winds help transition the region into the vibrant energy of spring.
Weather in Portoroz varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Portoroz, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather in the region is noticeably milder than in January, with temperatures ranging from a minimum of 5°C (42°F) to a maximum of 20°C (68°F), averaging around 13°C (56°F). In contrast, January experiences colder temperatures, with a minimum of -3°C (27°F) and a maximum of 13°C (56°F), averaging only 7°C (46°F). While April sees more rainfall, totaling 86 mm (3.4 in) over approximately 8 days, January has less precipitation at 58 mm (2.3 in) across 7 days. Additionally, humidity levels are higher in January at 88%, compared to April's 73%. For more detailed information, you can check Portoroz weather in January.
In comparing the weather between April and February, April generally offers milder temperatures with a minimum of 5°C (42°F) and an average of 13°C (56°F), peaking at 20°C (68°F). In contrast, February sees much colder conditions, with temperatures dipping to a minimum of -3°C (27°F) and averaging 8°C (47°F), reaching a maximum of only 13°C (56°F). Additionally, April experiences less precipitation, with 86 mm (3.4 in) across about 8 days, compared to February's higher total of 106 mm (4.2 in) over 11 days. The humidity levels are also slightly lower in April, at 73%, compared to February's 82%. For more detailed information, you can visit Portoroz weather in February.
April weather shows a noticeable warming trend compared to March, with minimum temperatures rising from -3°C (27°F) to 5°C (42°F) and average temperatures increasing from 10°C (50°F) to 13°C (56°F). While March records a maximum temperature of 16°C (62°F), April reaches up to 20°C (68°F), indicating a more comfortable climate as spring progresses. Precipitation levels also rise in April to 86 mm (3.4 in) over 8 days, compared to 57 mm (2.3 in) over 7 days in March, maintaining a consistent humidity level of 73% in both months. For more detailed weather information for March, you can check Portoroz weather in March.
April and May exhibit notable differences in weather patterns. In April, temperatures range from a minimum of 5°C (42°F) to a maximum of 20°C (68°F), with an average of 13°C (56°F). The month typically experiences about 86 mm (3.4 in) of precipitation over 8 days, along with a humidity level of 73%. In contrast, May sees a warmer climate with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 24°C (76°F), averaging 17°C (64°F). However, May experiences slightly higher precipitation at 105 mm (4.2 in) over 13 days, and humidity levels drop to 70%. For more details, you can check Portoroz weather in May.
April and June exhibit distinctly different weather patterns. In April, temperatures range from a chilly minimum of 5°C (42°F) to a comfortable maximum of 20°C (68°F), with an average of 13°C (56°F). The month is also characterized by significant rainfall, totaling 86 mm (3.4 in) over approximately 8 days, along with relatively high humidity at 73%. In contrast, June ushers in warmer weather, with temperatures ranging from a minimum of 16°C (61°F) to a maximum of 30°C (86°F) and an average of 23°C (73°F). Rainfall is less frequent in June, totaling 68 mm (2.7 in) over just 5 days, and humidity slightly decreases to 69%. For more detailed information, you can check Portoroz weather in June.
April and July present contrasting weather patterns suitable for different activities. In April, temperatures range from a chilly 5°C (42°F) to a mild 20°C (68°F), with an average of 13°C (56°F). During this month, precipitation is relatively high at 86 mm (3.4 in) over 8 days, accompanied by a humidity level of 73%, making it feel quite damp. In comparison, July boasts much warmer conditions, with temperatures starting at a minimum of 20°C (68°F) and peaking at 29°C (85°F), averaging 25°C (77°F). Precipitation decreases significantly to 49 mm (1.9 in) across just 6 days, and humidity is lower at 63%, leading to a more comfortable and enjoyable outdoor experience. For more specific details on the weather during July, you can check Portoroz weather in July.
April and August present stark contrasts in weather patterns. In April, temperatures range from a chilly 5°C (42°F) to a comfortable 20°C (68°F), with an average of 13°C (56°F). The month experiences considerable rainfall, totaling 86 mm (3.4 in) over about 8 days, and humidity is relatively high at 73%, creating a damp atmosphere. In contrast, August boasts much warmer temperatures, with a minimum of 17°C (63°F) and a peak reaching 30°C (87°F), averaging around 26°C (78°F). Precipitation is lighter at 58 mm (2.3 in) over just 6 days, and humidity drops to a more comfortable 51%. For those interested in exploring summer conditions, more information can be found here: Portoroz weather in August.
In comparing the weather of April and September, we observe notable differences. April experiences cooler temperatures, with a minimum of 5°C (42°F) and an average of 13°C (56°F), while September enjoys milder conditions, featuring a minimum of 14°C (57°F) and an average of 22°C (71°F). Precipitation is more prominent in September, with 171 mm (6.7 in) over about 10 days, compared to April's 86 mm (3.4 in) spread over 8 days. Additionally, April has higher humidity levels at 73%, whereas September sees a decrease to 64%. For a deeper look into September's weather, you can check Portoroz weather in September.
April and October offer distinct weather experiences. In April, temperatures range from a minimum of 5°C (42°F) to an average of 13°C (56°F), peaking at 20°C (68°F). The month sees about 86 mm (3.4 in) of precipitation over roughly 8 days, accompanied by a humidity level of 73%. In contrast, October is generally warmer, with minimum temperatures starting at 11°C (52°F) and an average of 17°C (64°F), reaching a maximum of 23°C (73°F). This month experiences slightly higher precipitation at 100 mm (4.0 in) over 10 days, contributing to a higher humidity of 83%. For more details, check out Portoroz weather in October.
April and November exhibit similar average temperatures, with both months averaging around 13°C (56°F). However, April tends to have slightly milder conditions, boasting a maximum temperature of 20°C (68°F), compared to November’s 19°C (67°F). In terms of precipitation, November is significantly wetter, receiving 183 mm (7.2 in) over 13 days, while April has 86 mm (3.4 in) spread over just 8 days. Additionally, November's humidity is higher at 89%, compared to April's 73%, making November feel notably more damp. For more detailed information, you can check out Portoroz weather in November.
April and December exhibit notable differences in weather patterns, with April generally being slightly warmer. In April, temperatures range from a minimum of 5°C (42°F) to a maximum of 20°C (68°F), with an average temperature of 13°C (56°F). The month experiences around 86 mm (3.4 in) of precipitation over approximately 8 days and has a humidity level of 73%.
In contrast, December sees cooler temperatures, with a minimum of 4°C (39°F), an average of 10°C (50°F), and a maximum of 16°C (60°F). Precipitation is higher at 150 mm (5.9 in) over roughly 13 days, and humidity rises to 88%. This comparison highlights December's wetter and cooler conditions compared to the milder, drier weather typically experienced in April. For more specifics on December conditions, check out Portoroz weather in December.
As April arrives in Portorož, the weather begins to transition from the chill of winter to the gentler warmth of spring. This month offers a refreshing blend of mild temperatures and noticeable humidity, setting it apart from both the colder months and the summer heat ahead. With average temperatures hovering around a comfortable 13°C, and maximums reaching up to 20°C, visitors can enjoy the burgeoning beauty of the area, albeit with a higher chance of rain as indicated by the 86 mm of precipitation over about 8 days. Perfect for those looking to experience a vibrant coastal destination waking up from its winter slumber, April in Portorož is a delightful time to explore before the summer crowds arrive. For more detailed insights on the weather trends throughout the year, check out Portoroz Climate.