Last updated: February 24, 2025
April in Lisbon, Portugal ushers in a delightful spring ambiance marked by a pleasant average temperature of 15°C (59°F). With maximums reaching 24°C (75°F), the days are comfortably warm, while nighttime lows can dip to a cool 8°C (46°F). Although visitors can expect some rainfall, with precipitation amounts around 73 mm (2.9 in) over approximately 12 days, the city’s vibrant charm remains undiminished. The air carries a moderate humidity level of 70%, adding a refreshing touch to the blossoming surroundings. April is indeed a captivating time to explore Lisbon’s rich culture and stunning landscapes.
April in Lisbon marks a delightful transition into spring, where temperatures start to rise noticeably. With average highs reaching 24°C (75°F), the city basks in a warm yet pleasant atmosphere that invites both locals and visitors to explore its vibrant streets. The evenings cool down with lows of 8°C (46°F), creating a comfortable backdrop for outdoor dining or leisurely strolls along the waterfront. Compared to the preceding months, April showcases a significant increase in warmth, fully embracing the joys of springtime, as nature begins to bloom and outdoor festivities come to life. It's an ideal time to savor the mild weather before summer’s heat sets in.
In April, Lisbon experiences a noticeable rise in precipitation, with 73 mm (2.9 in) of rain falling over 12 days. This increase marks a transition from the drier months of winter, showcasing the city's shift towards spring. The rainfall surpasses that of March and contributes to the vibrant bloom of flora throughout the region. As locals welcome the refreshing showers, the landscape transforms, setting the stage for a lively May. Interestingly, April stands out as a month of contrast; while it brings a wealth of moisture, the subsequent months—particularly June and July—drastically reduce rainfall, leading to a dry summer ahead.
In April, Lisbon experiences a delightful transition as humidity levels drop to 70%, reflecting a trend of decreasing moisture that began in March. This slight reduction creates a comfortable atmosphere, especially as the city shakes off the last remnants of winter. As spring blossoms, the humidity remains steady at 70% into May and shows a consistent decline heading into the summer months. This gradual decrease not only enhances Lisbon's charm during outdoor activities but also marks the beginning of a more pleasant climate for exploring this vibrant city.
As April arrives in Lisbon, locals and visitors alike should take note of a significant rise in the UV Index, peaking at 9—a marked increase from the previous months. This places the exposure category in the very high zone, indicating a noticeable change in the sun's intensity and a reduced burn time of just 15 minutes. Following the gradual ascent from 3 in January to 6 in March, April's drastic jump emphasizes the importance of sun protection during this month. As we head into spring, it’s crucial to be mindful of the sun’s rays, especially as the UV Index continues to trend upwards towards summer. For more details on UV levels throughout the year, check out Lisbon UV Index.
UV Risk Categories
With April transforming the landscape of Lisbon, the city basks in a radiant 354 hours of sunshine, setting the stage for the vibrant months ahead. This delightful increase marks a significant leap from the 307 hours recorded in March, continuing the positive trend that builds toward the summer months. As the days grow longer and warmer, April outshines the previous winter and early spring months, heralding a season of outdoor joy and exploration. Notably, this upward trajectory persists, with May and June promising even more sun, peaking at 411 hours and 423 hours, respectively. Lisbon truly awakens in April, offering a glimpse of the lush vitality that the sun-drenched summer will bring.
April in Lisbon experiences a 39% chance of sunny weather, a modest drop from the previous month, March, which enjoys a more favorable 60% likelihood. As the city transitions from spring into early summer, the sunny prospects improve significantly in the months ahead, with May reaching 57% and June hitting a robust 66%. This upward trend highlights Lisbon's journey from cooler, cloudier winter months to sunnier days, making April a transitional period where occasional sunshine battles with spring showers, setting the stage for the vibrant summer to come.
As April arrives in Lisbon, the days stretch longer, offering a delightful 13 hours of daylight that signals the true onset of spring. Following a steady increase from 10 hours in February and 11 hours in March, the city's vibrant atmosphere flourishes under the brighter skies. This upward trend is a precursor to the summer months, where daylight peaks at 14 hours from May to July. As nature awakens, there's a palpable sense of energy and renewal that permeates the streets of Lisbon, inviting locals and visitors alike to revel in the longer days ahead before the gradual tapering back to shorter daylight hours in autumn.
As April blooms in Lisbon, the city's breeze takes a gentle turn, with an average wind speed of 3.6 m/s (8 mph), making it the calmest month of the year so far. This decline from the breezier months of winter and early spring creates a tranquil atmosphere, inviting locals and visitors alike to bask in the mild weather. While the winds pick up again in May, reaching 5.5 m/s (12 mph), April provides a moment of stillness, highlighting a seasonal transition that encourages leisurely strolls through the sunlit streets and along the scenic waterfront. Embracing this softer wind, Lisbon becomes a delightful tapestry of springtime vitality, setting the stage for the vibrant months ahead.
The weather in Lisbon changes throughout the year, offering a unique experience in each season. Below is a month-by-month comparison of April's weather with other months, highlighting differences in temperature, precipitation, and other key factors. Click on each section to discover seasonal trends in Lisbon and find detailed weather information for every month.
In comparing the weather between April and January, April tends to be warmer and more temperate. With average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 24°C (75°F), it provides a pleasant climate, while January sees cooler averages, from a minimum of 3°C (38°F) to a maximum of 19°C (66°F). Additionally, April experiences more rainfall, with 73 mm (2.9 in) over 12 days, compared to January's 37 mm (1.5 in) over just 5 days. However, January's humidity is higher at 85%, compared to April's 70%, making the winter month feel a bit more damp. For more details on January weather, check out Lisbon weather in January.
April generally offers milder and more variable weather compared to February. With minimum temperatures rising to 8°C (46°F) and averages hitting 15°C (59°F), April feels noticeably warmer, peaking at a maximum of 24°C (75°F). In contrast, February has slightly cooler temperatures, ranging from a minimum of 5°C (41°F) to a maximum of 21°C (70°F) with an average of 13°C (55°F). While both months experience precipitation, April has more rainy days with a total of 73 mm (2.9 in) over 12 days, compared to February's 53 mm (2.1 in) across 7 days. Humidity remains similar in both months, with April at 70% and February slightly higher at 75%. For more details, you can visit Lisbon weather in February.
In comparing the weather of March and April, April tends to be slightly warmer, with average temperatures reaching 15°C (59°F) compared to March's average of 14°C (57°F). The maximum temperatures in April also rise to 24°C (75°F), slightly above March's peak of 23°C (73°F). Both months experience a similar amount of humidity, with April at 70% and March at 72%. However, April sees a bit more precipitation, totaling 73 mm (2.9 in) over 12 days, while March records 66 mm (2.6 in) over only 8 days. For more details on March weather, you can check out Lisbon weather in March.
April and May showcase a notable transition in weather patterns. In April, temperatures range from a minimum of 8°C (46°F) to a maximum of 24°C (75°F), with an average of 15°C (59°F), and the month sees significant rainfall totaling 73 mm (2.9 in) over 12 days. Humidity remains steady at 70%, contributing to a cooler, more unsettled atmosphere. In contrast, May presents warmer conditions, with temperatures ranging from a minimum of 10°C (50°F) to a maximum of 30°C (86°F) and an average of 17°C (63°F). Precipitation drops significantly to just 36 mm (1.4 in) over 4 days, while humidity stays constant at 70%. Overall, May offers a drier and warmer climate, reminiscent of the approaching summer. For more insights, check this link: Lisbon weather in May.
April and June showcase significantly different weather patterns. In April, temperatures range from a chilly 8°C (46°F) at night to a comfortable average of 15°C (59°F), peaking at a warm 24°C (75°F) during the day. This month experiences higher precipitation, with about 73 mm (2.9 in) over 12 days, resulting in a humid environment with humidity levels around 70%. In contrast, June brings warmer conditions, with minimum temperatures of 13°C (56°F) and average highs reaching 32°C (90°F), making it much hotter overall. Rainfall is notably scarce, with only 11 mm (0.4 in) across just 3 days, and reduced humidity levels at 63%. For a closer look at June weather specifics, check out Lisbon weather in June.
April weather is characterized by milder temperatures, with minimums around 8°C (46°F) and average highs reaching 24°C (75°F). The month experiences considerable rainfall, accumulating 73 mm (2.9 in) over about 12 days, and a relatively high humidity level of 70%. In contrast, July brings significantly warmer conditions, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 31°C (87°F). This month enjoys much drier weather, with only 5 mm (0.2 in) of precipitation and no rainy days, leading to a lower humidity level of 60%. For more details, you can check out Lisbon weather in July.
April and August present markedly different weather conditions. In April, temperatures range from a cool minimum of 8°C (46°F) to a comfortable maximum of 24°C (75°F), with an average around 15°C (59°F). Rainfall is relatively high in April, with 73 mm (2.9 in) of precipitation occurring over 12 days, contributing to a humidity level of 70%. In contrast, August boasts significantly warmer temperatures, with a minimum of 16°C (61°F) and a peak reaching up to 35°C (95°F), averaging around 20°C (69°F). Remarkably, August experiences very little precipitation, with only 3 mm (0.1 in) over the entire month and no rainy days, and humidity drops to a more comfortable 60%. This stark contrast highlights April's transitional nature compared to August's summer heat. For more details, visit Lisbon weather in August.
April and September both offer distinct weather experiences. In April, temperatures range from a cooler minimum of 8°C (46°F) to a pleasant maximum of 24°C (75°F), with an average of 15°C (59°F). However, this month sees more rainfall, with about 73 mm (2.9 in) over roughly 12 days, and humidity levels are around 70%. Conversely, September boasts milder temperatures, starting from a minimum of 14°C (58°F) and reaching a maximum of 29°C (84°F), averaging 20°C (68°F). Notably, it experiences much less precipitation, with only 27 mm (1.1 in) over about 2 days, accompanied by slightly lower humidity at 67%. For more detailed insights, check out Lisbon weather in September.
April and October in Lisbon exhibit mild temperatures and varying precipitation levels. In April, the average temperature is around 15°C (59°F) with a daily range from 8°C (46°F) to 24°C (75°F), accompanied by 73 mm (2.9 in) of rain over approximately 12 days, leading to a humidity level of 70%. In contrast, October presents slightly warmer conditions, with an average of 18°C (65°F) and a maximum of 28°C (82°F), as well as less rain totaling 46 mm (1.8 in) across only 5 days, while humidity rises slightly to 74%. For more detailed information, check out Lisbon weather in October.
April and November display similar average temperatures, with April ranging from a minimum of 8°C to a maximum of 24°C, while November's temperatures are slightly warmer with a minimum of 9°C and a maximum of 23°C. Both months feature an average temperature of 15°C (59°F), but November tends to be a bit wetter, with 80 mm of precipitation over 11 days compared to April's 73 mm over 12 days. Additionally, November experiences higher humidity at 83% compared to April's 70%, making it feel a bit more damp and cool. For more detailed insights on November weather, you can check Lisbon weather in November.
April and December display notable differences in weather patterns. In April, the temperatures range from a minimum of 8°C (46°F) to a maximum of 24°C (75°F), with an average of 15°C (59°F) and higher precipitation at 73 mm (2.9 in) over about 12 days. This month typically boasts a humidity level of 70%, creating a comfortable yet slightly variable atmosphere. In contrast, December experiences cooler conditions, with temperatures ranging from a minimum of 6°C (43°F) to a maximum of 18°C (65°F), averaging 13°C (56°F). The precipitation is slightly lower at 62 mm (2.4 in) across about 8 days, but humidity spikes to 85%, giving December a damp and chilly feel. For more insights on the weather in December, you can check Lisbon weather in December.
April in Lisbon brings a delightful shift in weather, showcasing a blend of warmth and refreshing breezes that distinguish it from the chillier months. With average temperatures rising and the city experiencing a mix of sunny spells and occasional showers, this month offers a vibrant contrast to winter's gloom. While the humidity lingers, it's the burgeoning signs of spring that truly invigorate the atmosphere, making April a perfect time for outdoor exploration. For those curious about the broader patterns throughout the year, you can discover more insights by visiting Lisbon Climate.