Last updated: August 21, 2025
In April, Naantali, Finland experiences a unique interplay of springtime temperatures and lingering winter chills. The maximum temperature reaches a delightful 21°C (70°F), offering a glimpse of the warmth to come, while the average hovers around a cool 4°C (39°F). However, nighttime brings a noticeable drop, with minimum temperatures dipping to a brisk -9°C (16°F). Throughout the month, 32 mm (1.3 in) of precipitation falls over 9 days, contributing to a high humidity level of 85% that envelops the region in a fresh, invigorating atmosphere. As the days lengthen, Naantali stands poised at the threshold of vibrant spring transitions.
April in Naantali, Finland marks a significant transition as winter's chill begins to wane. With minimum temperatures rising to -9°C (16°F), the average climbs to a comfortable 4°C (39°F), offering a glimpse of the warming days ahead. The mercury can soar to a delightful 21°C (70°F) at its peak, hinting at the vibrant spring that is just around the corner. This month showcases a distinct shift from the frigid depths of winter, as the increasing warmth encourages nature to awaken and bring color back to the landscape. As days grow longer and temperatures rise, April becomes a time of renewal, setting the stage for the summer warmth to follow.
In April, Naantali experiences a notable decline in precipitation, with only 32 mm (1.3 in) over 9 days. This reduction marks the transition from the wetter months of winter and early spring, where precipitation amounts hovered around 42-48 mm. As winter melts away, April offers a brief respite before the summer months bring increased rainfall. Notably, precipitation levels typically rise again in May, suggesting that while April may be drier, it's a precursor to the lush greenery that flourishes later in the season.
In April, Naantali experiences a noticeable decline in humidity, dropping to 85%, a shift that marks the beginning of a transition towards drier conditions as spring unfolds. Following the consistently high humidity levels of winter—peaking at 92% in January—April’s figures reflect a gradual retreat from the winter months, paving the way for May's even lower humidity of 77%. This trend emphasizes a move towards a more comfortable climate, while still retaining a certain freshness characteristic of the earlier months. As the year progresses, humidity begins to fluctuate, with higher levels returning in the fall, but April serves as a key turning point in Naantali’s annual weather cycle, bringing a sense of rejuvenation and the promise of warmer days ahead.
As April arrives in Naantali, Finland, the UV Index rises to 4, marking a transition into a moderate exposure category. This increase reflects the change in seasons, encouraging more outdoor activities, but also necessitating caution, as fair-skinned individuals may begin to feel the effects in just 30 minutes of sun exposure. Following the mild early months with a UV Index of 1 in January and February, and a moderate 3 in March, April's shift highlights the growing intensity of sunlight as spring unfolds. As summer approaches, the UV Index will continue to climb, reminding residents to stay sun-aware. For more details on the UV Index and safety recommendations, check out the Naantali UV Index.
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As spring unfolds in Naantali, Finland, April bursts forth with a dazzling 374 hours of sunshine, marking a significant leap from the previous months and paving the way for longer, brighter days. After a gradual ascent from January's 63 hours to March's 278 hours, the transition to April showcases the sun's powerful return, indicating nature's awakening. This trend continues into May and June, where the sunshine peaks, reaching 458 hours and 494 hours respectively. This vibrant shift not only highlights the increasing warmth of the season but also beckons residents and visitors alike to embrace the beauty of the outdoors, nurturing a sense of renewal and joy as the days grow longer.
In Naantali, Finland, the likelihood of experiencing sunny weather rises notably as spring unfolds. By April, the chance of sunshine increases to a promising 52%, signaling a delightful shift from the bleaker winter months where January offered a mere 10%. This upward trend continues into the warmer months, peaking in July at 57%. However, the sunny prospects begin to fluctuate again by August, highlighting the transitional nature of the Finnish climate. April thus stands as a pivotal moment, where the emergence of longer, sunnier days beckons the joys of spring after a long winter.
As spring unfolds in Naantali, Finland, April brings a delightful leap in daylight, with an impressive 14 hours illuminating the day. This surge marks a significant transition from the 11 hours experienced in March, reflecting the increasing embrace of sunshine that characterizes the changing seasons. Following the trend of longer days, May will enjoy even more light, reaching 17 hours, as summer approaches. This upward trajectory in daylight duration not only enhances outdoor activities but also invigorates the local atmosphere, gradually shifting from the quiet, subdued light of winter months like January's 6 hours and November's 7 hours. April, with its vibrant lengthening of days, signals a time of renewal and energy, setting the stage for the blissful, sun-drenched days of summer ahead.
As April unfolds in Naantali, Finland, the winds begin to stir with an average speed of 4.1 m/s (9 mph), slightly lower than the brisk March winds at 4.5 m/s (10 mph). This gentle breeze brings a refreshing transition into spring, echoing the seasonal shift from winter's chill. Notably, April maintains a consistent wind speed, aligning with the patterns observed in August and September, while showcasing a dip in comparison to the brisker months ahead in October, which boasts an increase to 5.3 m/s (12 mph). Overall, April's winds, while modest, serve as a herald of the warmer days to come, creating a dynamic interplay between the seasonal ebb and flow.
Weather in Naantali varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Naantali, focusing on differences in temperature, rainfall, humidity, and UV levels.
April and January weather present a stark contrast in temperature and conditions. In April, temperatures range from a chilly minimum of -9°C (16°F) to a comfortable maximum of 21°C (70°F), with an average of 4°C (39°F). The month experiences about 32 mm (1.3 in) of precipitation over 9 days, accompanied by a humidity level of 85%. On the other hand, January is much colder, with temperatures plunging to a minimum of -21°C (-6°F) and only reaching a maximum of 8°C (47°F), averaging -2°C (29°F). This month sees slightly higher precipitation at 48 mm (1.9 in) over the same 9 days but comes with a higher humidity of 92%. For more details on the weather in January, visit Naantali weather in January.
April's weather shows a notable warming trend compared to February, with temperatures ranging from a minimum of -9°C (16°F) to a maximum of 21°C (70°F) and an average of 4°C (39°F). In contrast, February's temperatures are significantly colder, with a minimum of -20°C (-4°F), an average of -3°C (27°F), and a maximum of 7°C (44°F). Although April experiences slightly less precipitation at 32 mm (1.3 in) compared to February's 42 mm (1.7 in), it has a higher number of warmer days, with temperatures rising into the low twenties. Additionally, the humidity is quite high in both months, with February at 90% and April at 85%. For more details on February weather in Naantali, you can visit Naantali weather in February.
In comparing the weather of April to March, we observe a marked improvement in temperatures and overall conditions. April boasts a minimum temperature of -9°C (16°F) and an average of 4°C (39°F), contrasted with the colder March, which sees a minimum of -23°C (-9°F) and an average of 0°C (32°F). The maximum temperatures also rise significantly, with April reaching up to 21°C (70°F) compared to March's peak of 11°C (52°F). While both months experience precipitation on 9 days, March has a slightly higher total precipitation of 44 mm (1.7 in) compared to April's 32 mm (1.3 in). Despite the humidity levels being quite similar—85% in April and 89% in March—April's warmer temperatures create a more pleasant atmosphere overall. For a more detailed look at conditions, you can check out Naantali weather in March.
In comparing the weather between April and May, April experiences a broader temperature range, with minimums dropping to -9°C (16°F) and maximums reaching up to 21°C (70°F), whereas May sees milder temperatures with a minimum of -4°C (26°F) and a maximum of 26°C (79°F). Precipitation increases slightly in May to 44 mm (1.7 in), compared to 32 mm (1.3 in) in April, although both months have rainfall on about 9 days. Humidity also decreases from 85% in April to 77% in May, making May feel a bit more pleasant overall. For more detailed insights, you can check Naantali weather in May.
April and June exhibit notable differences in weather patterns. April experiences a broader temperature range, with minimums plunging to -9°C (16°F), while the average temperature sits around a chilly 4°C (39°F) and peaks at a mild 21°C (70°F). The month also sees considerable humidity at 85% and receives 32 mm (1.3 in) of precipitation over 9 days. In contrast, June is characterized by a warmer climate, with temperatures ranging from a low of 3°C (38°F) to a comfortable average of 16°C (61°F), reaching highs of 28°C (83°F). Additionally, June experiences slightly more precipitation at 43 mm (1.7 in) but only over 7 days, accompanied by lower humidity of 78%. For more specifics about the June weather in Naantali, you can visit Naantali weather in June.
April and July present contrasting weather conditions. In April, temperatures fluctuate significantly, ranging from a chilly minimum of -9°C (16°F) to a mild maximum of 21°C (70°F), with an average of around 4°C (39°F). This month experiences 32 mm (1.3 in) of precipitation over approximately 9 days, coupled with high humidity levels at 85%. In stark contrast, July boasts a much warmer climate, with temperatures ranging from a minimum of 6°C (44°F) to a maximum of 31°C (89°F) and an average of 18°C (64°F). Although July sees more precipitation, totaling 75 mm (3.0 in) over about 11 days, the humidity is slightly lower at 78%. For more detailed information on July weather, you can visit Naantali weather in July.
In April, temperatures in Naantali can range from a chilly minimum of -9°C (16°F) to a pleasant maximum of 21°C (70°F), with an average temperature of 4°C (39°F). The month features about 32 mm (1.3 in) of precipitation over approximately 9 days, accompanied by high humidity levels of around 85%. In contrast, August brings warmer conditions with temperatures varying from a minimum of 6°C (43°F) to a maximum of 28°C (83°F) and an average of 17°C (62°F). Precipitation increases to 87 mm (3.4 in) across 14 days, while humidity slightly decreases to 79%. For more detailed weather information, you can check Naantali weather in August.
April and September present distinctly different weather patterns. In April, temperatures range from a chilly minimum of -9°C (16°F) to a comfortable maximum of 21°C (70°F), with an average of 4°C (39°F). The month sees about 32 mm (1.3 in) of precipitation over 9 days, and humidity hovers around 85%. In contrast, September features milder conditions with temperatures ranging from -1°C (31°F) to a maximum of 23°C (73°F) and an average of 12°C (54°F). Precipitation increases to 72 mm (2.8 in) spread over 12 days, while humidity remains slightly higher at 86%. For more detailed information, check out Naantali weather in September.
April and October present distinct weather patterns, each with their unique characteristics. In April, temperatures range from a chilly minimum of -9°C (16°F) to a pleasant maximum of 21°C (70°F), with an average of 4°C (39°F) and relatively low precipitation of 32 mm (1.3 in) over about 9 days. Humidity levels hover around 85%, contributing to a crisp spring atmosphere.
In contrast, October is cooler, with a minimum temperature of -5°C (23°F) and a maximum of 17°C (62°F), averaging 7°C (46°F). It also experiences significantly higher precipitation, accumulating 86 mm (3.4 in) over 17 days, and an increase in humidity to 90%. This shift to wetter conditions marks the transition into fall. For a more detailed outlook, you can check Naantali weather in October.
April and November present contrasting yet somewhat similar weather patterns. In April, temperatures range from a minimum of -9°C (16°F) to a maximum of 21°C (70°F), with an average of 4°C (39°F). This month sees a total precipitation of 32 mm (1.3 in) over 9 days, characterized by relatively lower humidity at 85%. In contrast, November features a slightly higher minimum temperature of -8°C (17°F) and a maximum of just 13°C (56°F), keeping the daily average at the same level of 4°C (39°F) as April. However, November experiences more precipitation at 59 mm (2.3 in) across 12 days, accompanied by increased humidity at 91%. For a deeper dive into November's climate, you can check out Naantali weather in November.
April and December present quite contrasting weather patterns. In April, temperatures range from a brisk -9°C (16°F) at night to a mild 21°C (70°F) during the day, with an average temperature of 4°C (39°F). Precipitation is relatively light at 32 mm (1.3 in) over about 9 days, and humidity sits at 85%. In contrast, December experiences much colder temperatures, ranging from a low of -18°C (-1°F) to a high of only 7°C (45°F), with an average of 0°C (32°F). The month is wetter, with 79 mm (3.1 in) of precipitation spread over 15 days, and humidity slightly higher at 89%. For those interested in the specifics of December weather, you can find further details here: Naantali weather in December.
April in Naantali marks a transition from the harsh chill of winter to the gentle warmth of spring. As temperatures begin to rise, there's an invigorating freshness in the air, with an average temperature that hints at longer, sunnier days ahead. Despite an occasional cool breeze and higher humidity levels, the month is characterized by a tapestry of mild conditions interspersed with light rain—a welcome change from the deep freeze of winter months. With around nine days of precipitation, those April showers help to revitalize the lush landscapes, making it a beautiful time to explore the vibrant surroundings. For more insights into Naantali's climate throughout the year, visit Naantali Climate.