Last updated: August 21, 2025
April in Mariehamn, Åland Islands brings a transition to spring, characterized by cool temperatures that range from a maximum of 9°C (48°F) to a chilly minimum of -1°C (30°F). The month boasts an average temperature of 3°C (38°F), making it a refreshing time to explore the area. With 24 mm (1.0 in) of precipitation spread over 7 days, occasional rain showers contribute to the region's lush beauty, while an 85% humidity level adds to the brisk air. As the landscape begins to awaken from winter, April offers a unique canvas of springtime charm in this picturesque island setting.
As winter begins to loosen its grip in April, Mariehamn, Åland Islands experiences a noticeable shift in temperatures, heralding the arrival of spring. The temperature ranges from a low of -1°C (30°F) to a high of 9°C (48°F), with an average hovering around 3°C (38°F). This month marks a distinct warming trend, as both daily minimums and maximums start to rise compared to the lingering chill of earlier months. The transition into April offers a refreshing reprieve from the harsher conditions of January through March, making it an inviting time to embrace the emerging colors of nature. While still cool, the gradual increase prefaces the warmth of May, hinting at the blossoming warmth to come.
In April, Mariehamn experiences a notable dip in precipitation, with only 24 mm (1.0 in) recorded over just 7 days. This significant decrease from the previous months indicates a transition toward drier conditions as spring unfolds. March, with its 37 mm (1.5 in) of rainfall, marks the tail end of winter’s dampness, while April paves the way for milder weather. As temperatures rise and the landscape awakens, the lighter precipitation is a herald of the forthcoming summer months, which will see rainfall levels gradually increase again from May onwards. This pattern underscores a dynamic shift in Mariehamn’s climate, balancing between wet and dry cycles as the seasons change.
In April, humidity in Mariehamn, Åland Islands begins to ease slightly from the high levels experienced in winter, settling at a comfortable 85%. This marks a continuation of the gradual decline that started in March, as spring approaches and warmer temperatures begin to dominate. Compared to the peak winter months, where humidity hovered around 90%, April’s levels hint at a transition into the milder conditions of early summer. As the months progress, May brings even lower humidity at 77%, signaling the onset of drier, sunnier days ahead. This trend not only highlights the shift towards a more temperate climate but also sets the stage for the gradually warming, vibrant summer that follows.
In April, the UV Index in Mariehamn, Åland Islands rises to 4, marking a transition to a moderate exposure category that requires some caution during outdoor activities. This increase from the previous months reflects a steady climb as spring progresses, with burn time reduced to 30 minutes for fair-skinned individuals. As the days grow longer and sunnier, it's vital to be aware of your UV exposure, especially as the UV Index will continue to rise in May. Staying informed helps protect your skin while enjoying the beauty of the outdoors. For more details on UV levels throughout the year, check out Mariehamn UV Index.
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As April arrives in Mariehamn, Åland Islands, the days begin to stretch significantly, welcoming a delightful 368 hours of sunshine. This marks a noticeable leap from the previous months, with sunlight hours more than doubling from March’s 272 hours. The shift toward warmer days is invigorating, foreshadowing the bright and vibrant May, which boasts an impressive 457 hours of sunshine. This upward trend reveals a clear pattern: as spring advances, the sunlight flourishes, setting the stage for the long, sun-kissed days of summer that follow. The gradual increase not only uplifts spirits but also highlights the region’s enchanting transformation as it shakes off winter’s chill, making April a captivating prelude to the splendid summer ahead.
As spring unfolds in Mariehamn, Åland Islands, April marks a significant shift in the likelihood of sunny weather, with a 52% chance of sunshine. This month stands out, as it nearly doubles the sun's presence compared to the previous months: only 33% in March and 25% in February. April's increasing daylight and warming temperatures pave the way for brighter days, setting the stage for a gradual rise into the sunnier months of late spring and summer, such as June and July, where chances soar to 56% and 62%, respectively. This transitional period is not only refreshing but also invites residents and visitors alike to embrace outdoor activities and revel in the blossoming beauty of nature.
As spring unfolds in Mariehamn, Åland Islands, April marks a significant shift in daylight duration, offering 14 hours of sunlight compared to just 11 hours in March. This increase reflects the gradual emergence from the long, dark winter months, as daylight begins to extend appreciably. Moving from the stark 6 hours in January to a blossoming springtime, the month of April heralds not only longer days but also the vibrant energy of nature coming back to life. As May approaches with its promise of 17 hours of daylight, the trend showcases the region's transition towards summer, inviting locals and visitors alike to bask in the growing warmth and light.
As April unfolds in Mariehamn, Åland Islands, the weather reflects a gentle shift in the winds, with the average wind speed dipping to 6.8 m/s (15 mph). This marks a noticeable decrease from the brisk conditions of the preceding months, which hovered around 7.4 to 7.7 m/s (17 mph) from January to March. The month acts as a transition, as the winter gales begin to fade and spring's refreshing breezes take hold, hinting at the milder months ahead. May further softens the air with even calmer winds at 5.3 m/s (12 mph), indicating a trend towards tranquility as summer approaches. Overall, April's winds serve as a gentle reminder that nature is poised for renewal, inviting both residents and visitors to savor the serene beauty of this charming island.
Weather in Mariehamn varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Mariehamn, focusing on differences in temperature, rainfall, humidity, and UV levels.
When comparing the weather in April and January, we see notable differences in temperature and precipitation. April experiences milder temperatures, with averages around 3°C (38°F) and daily highs reaching 9°C (48°F), while January tends to be colder, averaging 1°C (35°F) with lows dropping to -8°C (17°F). January also sees more precipitation, totaling 48 mm (1.9 in) over 11 days, compared to April's 24 mm (1.0 in) over 7 days. Both months have high humidity levels, with April at 85% and January slightly higher at 90%. For more details on January's weather, you can visit Mariehamn weather in January.
In comparing April and February weather, we see a notable transition as spring approaches. April experiences milder temperatures with a minimum of -1°C (30°F) and an average of 3°C (38°F), while February is significantly colder, recording a minimum of -10°C (14°F) and an average of 0°C (33°F). Precipitation is heavier in February, totaling 38 mm (1.5 in) over 10 days compared to April's 24 mm (1.0 in) over 7 days. Additionally, humidity levels are slightly higher in February at 88%, compared to 85% in April, reflecting the lingering winter chill. For more detailed information, consider visiting Mariehamn weather in February.
In comparing the weather in April and March, April exhibits a milder climate, with average temperatures rising to 3°C (38°F) compared to March's average of 1°C (35°F). Notably, the minimum temperature in April is a more tolerable -1°C (30°F), while March sees dips as low as -10°C (14°F). April also experiences less precipitation, at 24 mm (1.0 in) over 7 days, compared to March's 37 mm (1.5 in) over 9 days. Humidity levels remain high in both months, with April at 85% and March slightly higher at 89%.
For more detailed information, you can check out Mariehamn weather in March.
In April, the weather is noticeably cooler, with minimum temperatures dipping to -1°C (30°F) and an average of just 3°C (38°F). The month experiences a bit of precipitation, totaling 24 mm (1.0 in) over 7 days, along with higher humidity levels at 85%.
In contrast, May brings a significant warming trend, with minimum temperatures rising to 1°C (33°F) and an average of 7°C (45°F), reaching a maximum of 15°C (59°F). Although May sees slightly more rainfall at 36 mm (1.4 in) over just 6 days, the humidity drops to 77%, contributing to a fresher feel. For more detailed information about the weather in May, you can visit Mariehamn weather in May.
April weather in Mariehamn is characterized by its chilly temperatures, with a minimum of -1°C (30°F) and an average of 3°C (38°F). The month experiences about 24 mm (1.0 in) of precipitation across 7 days, coupled with high humidity levels averaging 85%. In contrast, June brings a noticeable warming trend, with temperatures ranging from a minimum of 7°C (44°F) to a maximum of 21°C (70°F) and an average of 13°C (56°F). Although June sees slightly higher precipitation at 29 mm (1.1 in), it only occurs over 4 days, and humidity drops to a more comfortable 76%. For more details on June weather, you can check Mariehamn weather in June.
April and July present contrasting weather conditions in Mariehamn. In April, temperatures can dip as low as -1°C (30°F), with an average of 3°C (38°F) and a maximum of 9°C (48°F). The month is characterized by a high humidity level of 85% and some precipitation, totaling 24 mm (1.0 in) over about 7 days. In stark contrast, July boasts significantly warmer temperatures, ranging from a minimum of 11°C (53°F) to an average of 17°C (63°F), and peaking at 24°C (75°F). Although July experiences more precipitation at 45 mm (1.8 in) over the same number of days, the overall humidity is lower at 74%. For a detailed look at July's weather, visit Mariehamn weather in July.
April and August in Mariehamn show a stark contrast in weather conditions. In April, temperatures can drop as low as -1°C (30°F), with an average of only 3°C (38°F) and a maximum of 9°C (48°F). The month is characterized by high humidity levels of 85% and around 24 mm (1.0 in) of precipitation over approximately 7 days. In comparison, August enjoys much milder weather, with minimum temperatures around 13°C (55°F), an average of 17°C (63°F), and highs reaching 23°C (74°F). Even though August is slightly wetter, with 53 mm (2.1 in) of precipitation over 10 days, the lower humidity of 77% makes the summer feel more comfortable. For more detailed weather information, you can visit Mariehamn weather in August.
April and September present distinctly different weather patterns, offering a stark contrast in temperature and precipitation. In April, temperatures typically range from a chilly -1°C (30°F) to a mild 9°C (48°F), with an average of just 3°C (38°F). The month experiences around 24 mm (1.0 in) of precipitation over approximately 7 days, often accompanied by a high humidity of 85%. Conversely, September brings much warmer conditions, with temperatures ranging from 8°C (46°F) to a comfortable 20°C (68°F) and an average of 14°C (57°F). However, it also sees increased rainfall, totaling 56 mm (2.2 in) over about 11 days, while maintaining the same humidity level of 85%. For more detailed information on September weather, check out Mariehamn weather in September.
April and October present distinctly different weather patterns. In April, temperatures range from a chilly -1°C (30°F) at night to a modest daytime high of 9°C (48°F), with an average temperature of 3°C (38°F). The month sees around 24 mm (1.0 in) of precipitation over approximately 7 days, accompanied by high humidity levels at 85%. In contrast, October experiences milder temperatures, with nighttime lows of 3°C (37°F) and daytime highs reaching 15°C (59°F), resulting in an average temperature of 9°C (49°F). This month is considerably wetter, with about 90 mm (3.6 in) of rainfall spread out over 17 days, and slightly higher humidity at 89%. For more details, you can check Mariehamn weather in October.
April and November present distinct weather characteristics in terms of temperature and precipitation. In April, temperatures range from a minimum of -1°C (30°F) to a maximum of 9°C (48°F), with an average of 3°C (38°F). This month typically sees about 24 mm (1.0 in) of precipitation over 7 days and maintains a humidity level of 85%. In contrast, November experiences slightly colder temperatures, with a minimum of -2°C (29°F) and reaching up to 13°C (55°F) on average. The precipitation in November is significantly higher at 57 mm (2.2 in), distributed across 14 days, and the humidity increases to 90%. For more specific information about Mariehamn weather in November, you can refer to this link: Mariehamn weather in November.
April and December in Mariehamn present quite different weather experiences. In April, temperatures range from a minimum of -1°C (30°F) to a maximum of 9°C (48°F), with an average of around 3°C (38°F). The month sees moderate precipitation of 24 mm (1.0 in) spread over 7 days and maintains a humidity level of 85%. In contrast, December is colder, with temperatures ranging from a low of -8°C (19°F) to a high of just 7°C (46°F), also averaging 3°C (37°F). However, it is much wetter, with 80 mm (3.1 in) of precipitation over 18 days, and a slightly higher humidity of 87%. For more details about the climate in December, you can visit Mariehamn weather in December.
As April arrives in Mariehamn, a noticeable shift in the weather sets the tone for spring. Temperatures remain cool, yet are a welcome relief from the chillier months of winter, with the occasional sunny day hinting at the warmth to come. With an average temperature of around 3°C, April is distinctively milder than the harsh winters, although it can still dip into the negatives at night. Precipitation levels start to rise, marking the transition as the region becomes more humid, reminding residents of nature's awakening. Although rain is frequent, it often brings a refreshing change, contrasting sharply with the drier and colder winter months. For more insights on seasonal weather patterns, visit Mariehamn Climate.