April Weather in Slunj, Croatia

Last updated: March 17, 2025

In April, Slunj, Croatia experiences a dynamic range of weather, featuring maximum temperatures reaching up to 27°C (81°F) and a cooler average of 10°C (50°F). However, the month can also bring a chill, with minimum temperatures plunging to -9°C (15°F). Rainfall is notable, with total precipitation amounting to 101 mm (4.0 in) over approximately 12 days, resulting in a humidity level of 72%. This combination of warm days and cooler temperatures invites both blossoming nature and frequent showers, making April a month of captivating contrasts in Slunj.

April Temperature in Slunj

In April, Slunj, Croatia, begins to shake off the winter chill, with temperatures making a noticeable shift toward warmth. The month sees a minimum of around -9°C (15°F), rising to an average of 10°C (50°F) and peaking at a delightful 27°C (81°F). This marks a significant leap from the colder months, as the landscape starts to blossom and outdoor activities become more inviting. With the average temperature nearly doubling from the previous months, April serves as a refreshing herald of spring, with its mild conditions creating an ideal setting for exploring the picturesque natural beauty of the region. As the days grow longer and sunnier, residents and visitors alike revel in the warming embrace of the season.

April Weather in Slunj: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Slunj, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec333942505867707060524437
Data source: Temperature data for Slunj generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Slunj

April in Slunj, Croatia, ushers in a notable transition with precipitation reaching 101 mm (4.0 in), marking a significant month in the spring season. With 12 days of rain, April maintains a balanced rhythm similar to the preceding months, yet it heralds a shift towards more substantial rainfall that will define May, which averages 174 mm (6.8 in). This gradual increase in precipitation foreshadows the lush landscapes that characterize the region as it moves into late spring and summer, while also contrasting sharply with the drier spells experienced in the summer months. As nature awakens from winter's slumber, April's rain lays the groundwork for vibrant flora, providing a fresh backdrop for Slunj's renowned scenery.

April Precipitation Trends in Slunj

The chart displays monthly precipitation patterns in Slunj, with values for each month alongside April's data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how April's conditions compare to those of other months.
JanFebMarAprMayJunJulAugSepOctNovDec851148710217487114115166130155144
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Slunj

In April, Slunj, Croatia experiences a notable transition in its humidity levels, with humidity dropping to 72%. This decrease continues the trend observed since January, where the humidity peaked at a high of 89%. As the spring season progresses, humidity decreases from the winter months, reflecting the warming weather and the approach of summer. This gradual decline carries over into May, where it reaches 70%, indicating a shift towards drier conditions. Overall, April serves as a pivotal month, marking the tail end of the wetter season and hinting at the drier months ahead, especially with July and August showing significantly lower humidity levels of 64% and 51% respectively.

April Average Humidity in Slunj

This chart illustrates the average monthly humidity levels in Slunj, with April's data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, allowing you to see how April's humidity levels compare to other months.
JanFebMarAprMayJunJulAugSepOctNovDec89%83%75%72%70%69%64%51%62%81%87%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Slunj

As spring unfolds in April, Slunj, Croatia experiences a noticeable shift in UV exposure, with the UV Index climbing to 7, indicating a high risk of harm from unprotected sun exposure, and a reduced burn time of just 25 minutes. This increase from the previous months showcases a trend towards intensified sun exposure as the warmth of the season arrives. After a relatively mild winter and moderate early spring months, locals and visitors should take heed of this rise, as the potential for sun damage escalates. To ensure safety while enjoying the blooming landscape, it’s essential to embrace protective measures. For more detailed information, check out Slunj UV Index.

Maximum UV Index Levels in Slunj for April

The chart shows the monthly maximum UV Index (UVI) for Slunj in April, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues.
JanFebMarAprMayJunJulAugSepOctNovDec235789987532
Data source: Slunj April UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

April Sunshine in Slunj

As spring unfolds in Slunj, Croatia, April shines brightest with an impressive 342 hours of sunshine, marking a delightful transition towards the warmer months. The trend is unmistakable: following the cold grip of winter with only 173 hours in January, sunshine hours steadily increase, culminating in the vibrant vitality of spring and early summer. March brings a promising 312 hours, setting the stage for April's sunny splendor, while May and June continue this upward trajectory, peaking at 410 hours in June. Enjoying these sun-drenched days not only enhances the beauty of Slunj’s stunning landscapes but also invites both locals and visitors to revel in the charm of this Croatian gem.

Monthly Sunshine Duration in Slunj: April Highlighted

The April sunshine duration represents the total number of hours Slunj experiences direct sunlight during the month of April, excluding cloudy or obstructed periods. This chart compares the sunshine duration of April with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec173h228h312h342h376h410h428h395h330h293h202h208h
Data source: Slunj April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Slunj During April

As spring unfolds in Slunj, Croatia, April brings a 40% chance of sunny weather, marking a slight dip from March's impressive 57%. This trend reflects a transitional period where sunny days occasionally give way to the unpredictable nature of early spring. Despite this minor decrease, the likelihood of sunshine remains relatively favorable compared to the colder months. As the region moves into May, the chance of sunny weather begins to wane again to 37%, suggesting that while April can offer some bright moments, the warm embrace of summer is still on the horizon, with June expected to soar to 60%.

Percentage of Sunny Days in April in Slunj

The chart illustrates the percentage of sunny days in Slunj throughout the year, with April highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Slunj experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%39%57%40%37%60%51%51%55%34%17%29%
Data source: Slunj April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Slunj in April

As spring unfolds in Slunj, Croatia, April brings a noticeable jump in daylight, offering 13 hours of light to its residents. This increase follows the steady ascent from 11 hours in March, signaling the transition from winter's grasp. The trend continues into May, where daylight extends even further to 14 hours, showcasing the vibrant energy of the season. With longer days, the opportunity for outdoor activities flourishes, while the ever-increasing daylight serves as a reminder of the warmth and vitality approaching in the summer months ahead.

Average Daylight Hours in Slunj for April

The chart illustrates the variation in daylight duration in Slunj throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 11m10h 24m11h 56m13h 31m14h 51m15h 32m15h 10m13h 59m12h 28m10h 55m9h 32m8h 49m
Data source: Slunj daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Slunj

In April, the wind in Slunj, Croatia dances gently with an average speed of 2.2 m/s (5 mph), marking a slight decline from the slightly breezier months of January, February, and March. As spring unfolds, the air feels refreshingly crisp, hinting at the transition into warmer days ahead. Following April, May sees a minor uptick to 2.4 m/s, signifying an awakening as nature vibrantly blossoms. This year-on-year trend indicates that while April may be a bit calmer, it sets the stage for the increasing liveliness of the coming months. Overall, the wind's gentle embrace in April creates a serene backdrop, perfect for enjoying the picturesque surroundings of Slunj as it blossoms into spring.

Average April Wind Speed in Slunj

The chart displays monthly wind speed patterns in Slunj, with values for each month shown alongside April's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how April's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec2.32.62.32.2 m/s2.41.81.81.71.72.31.82.0
Data source: Slunj April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Slunj Compares to Other Months

The weather in Slunj 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 Slunj and find detailed weather information for every month.

April offers a notable contrast to January's chill, with an average temperature of 10°C (50°F) compared to January's colder 0°C (33°F). The minimum temperatures in April can drop to -9°C (15°F), but overall, the month showcases warmer days, reaching up to 27°C (81°F). In addition, April experiences slightly higher precipitation at 101 mm (4.0 in) over 12 days, reflecting a gradual transition into spring. Conversely, January, with a maximum temperature of only 15°C (59°F) and a minimum of -19°C (-1°F), brings more persistent cold and higher humidity levels at 89%. For those interested in January conditions, you can find more details at Slunj weather in January.

April generally offers milder temperatures compared to February, with an average of 10°C (50°F) compared to February's cooler average of 4°C (39°F). The maximum temperatures in April can reach up to 27°C (81°F), significantly warmer than February's peak of 20°C (68°F). However, February experiences slightly more precipitation at 114 mm (4.5 in) compared to April's 101 mm (4.0 in), despite both months having precipitation on 12 days. Furthermore, February's humidity is higher at 83%, while April has a more comfortable level at 72%. For a detailed look at February's weather, visit Slunj weather in February.

In comparing the weather of April and March, we can see a noticeable shift in temperatures and precipitation. April records a minimum temperature of -9°C (15°F) and an average of 10°C (50°F), with a peak reaching 27°C (81°F). This marks a significant increase from March, which experienced a minimum of -14°C (7°F) and an average temperature of only 6°C (42°F), with a maximum of 22°C (71°F). Additionally, April sees a total precipitation of 101 mm (4.0 in) over 12 days, slightly up from March's 87 mm (3.4 in) over 13 days. Humidity levels also remain fairly comparable, with April at 72% and March slightly higher at 75%. For more details on the weather conditions during March, you can refer to Slunj weather in March.

April and May exhibit distinct weather patterns, with both months showcasing a transition from cooler to warmer temperatures. In April, temperatures range from a minimum of -9°C (15°F) to a maximum of 27°C (81°F), averaging around 10°C (50°F) and accompanied by 101 mm (4.0 in) of precipitation over 12 days, giving it a moderately humid atmosphere at 72%. In contrast, May brings a milder climate with minimum temperatures of 0°C (32°F) and maximum temperatures peaking at 29°C (84°F), offering a pleasant average of 14°C (58°F). However, May sees increased precipitation, totaling 174 mm (6.8 in) over 19 days, while humidity remains slightly lower at 70%. For more details on May weather, check out Slunj weather in May.

In comparing the weather of April and June, there is a notable shift in temperatures and conditions. April has a wider temperature range, with minimums dropping to -9°C (15°F) and maximums reaching 27°C (81°F), resulting in an average of 10°C (50°F). In contrast, June presents milder nights with minimums around 7°C (45°F) and notably warmer days averaging 20°C (68°F) and peaking at 36°C (96°F). While April experiences more precipitation at 101 mm (4.0 in) over 12 days, June sees a slightly lower total of 86 mm (3.4 in) but over a similar number of wet days at 13. Humidity levels are slightly lower in June at 69%, compared to April's 72%. For more details about June weather, visit Slunj weather in June.

April and July present quite contrasting weather conditions. In April, temperatures range from a chilly minimum of -9°C (15°F) to a pleasant maximum of 27°C (81°F), with an average temperature around 10°C (50°F). The month experiences a significant amount of precipitation, totaling 101 mm (4.0 in) over 12 days, accompanied by relatively high humidity at 72%. In comparison, July showcases much warmer temperatures, with a minimum of 9°C (49°F) and a maximum reaching 34°C (94°F), while the average temperature rises to 21°C (70°F). Although July has slightly higher precipitation at 114 mm (4.5 in) over the same number of days, the humidity drops to 64%, providing a more comfortable summer atmosphere. For more details on July weather, you can check Slunj weather in July.

April and August present contrasting weather conditions, reflecting the transition from spring to late summer. In April, temperatures range from a chilly minimum of -9°C (15°F) up to a pleasant average of 10°C (50°F), with the potential for peaks reaching 27°C (81°F). The month is also characterized by higher precipitation, receiving 101 mm (4.0 in) over approximately 12 days and maintaining a humidity level of 72%, creating a rather damp atmosphere.

In stark comparison, August experiences milder minimums starting at 6°C (44°F) and a much warmer average temperature of 21°C (70°F), with maximums soaring to a sweltering 38°C (101°F). Though it has slightly more precipitation at 115 mm (4.5 in) spread over about 13 days, the humidity drops to a more comfortable 51%, contributing to a drier feel. For a more detailed look into the weather specifics, you can check Slunj weather in August.

April and September showcase contrasting weather patterns as the seasons transition. In April, temperatures range from a chilly minimum of -9°C (15°F) to a mild average of 10°C (50°F), peaking at a warm 27°C (81°F). However, this month also experiences 101 mm (4.0 in) of precipitation over 12 days, coupled with a humidity level of 72%, creating a damp atmosphere. In comparison, September offers warmer conditions with temperatures starting at a minimum of 2°C (36°F), averaging 16°C (61°F), and soaring to a maximum of 32°C (90°F). This month, however, sees increased precipitation of 166 mm (6.5 in) over 13 days, although the humidity drops to 62%, making for a less muggy feel. For more details on weather conditions, check out Slunj weather in September.

April and October both showcase mild temperatures, though April experiences a broader range. In April, temperatures can dip as low as -9°C (15°F) and reach a maximum of 27°C (81°F), with an average of 10°C (50°F). In contrast, October's temperatures are generally more stable, ranging from a minimum of -1°C (30°F) to a maximum of 24°C (76°F), with an average of 11°C (52°F). Precipitation is slightly higher in October at 129 mm (5.1 in) over 10 days, compared to April's 101 mm (4.0 in) over 12 days, while humidity increases in October to 81%, up from April's 72%. For insights on the specific weather conditions in October, visit Slunj weather in October.

April and November present contrasting weather patterns, marked by differences in temperature, precipitation, and humidity. In April, temperatures range from a chilly minimum of -9°C (15°F) to a comfortable maximum of 27°C (81°F), with an average of 10°C (50°F). The month experiences moderate rainfall of 101 mm (4.0 in) over approximately 12 days and features humidity levels around 72%. In contrast, November is cooler with temperatures peaking at 20°C (67°F) and averaging 7°C (44°F), while the minimum temperature is slightly higher at -7°C (19°F). This month is also wetter, receiving 155 mm (6.1 in) of precipitation across about 15 days, and it has higher humidity at 87%. Overall, while April offers a more variable climate with warmer temperatures, November tends to be consistently cooler and wetter. For more detailed insights, check out Slunj weather in November.

April and December present contrasting weather patterns, showcasing the transition from spring's mildness to winter's chill. In April, temperatures range from a minimum of -9°C (15°F) to a maximum of 27°C (81°F), with an average of 10°C (50°F). This month experiences around 101 mm (4.0 in) of precipitation over approximately 12 days, accompanied by a humidity level of 72%. In contrast, December is marked by colder temperatures, where the minimum dips to -12°C (11°F) and the maximum reaches only 16°C (61°F), yielding an average of 3°C (37°F). Precipitation increases to 144 mm (5.7 in) over about 14 days, with humidity peaking at 88%. For a deeper insight into December weather specifically, visit Slunj weather in December.

Compare Slunj's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Slunj

As April unfolds in Slunj, the weather presents a refreshing transition from the colder months, with temperatures starting to rise and hinting at the warmth of summer ahead. While chilly nights can still dip to frigid lows, the days often bask in the comfortable embrace of milder temperatures. This month also sees a fair share of precipitation, contributing to the lush greenery that characterizes spring in the region. The relative humidity remains noticeably high, adding a touch of softness to the air. Overall, April is a unique blend of cool breezes and forthcoming warmth, marking a vibrant departure from winter's grip. For a more detailed look at how April fits into the yearly weather patterns, visit Slunj Climate.