April Weather in Kostanjevica na Krki, Slovenia

Last updated: August 27, 2025

In Kostanjevica na Krki, Slovenia, April brings a delightful mix of weather that marks the transition from chill to warmth. With a maximum temperature reaching 28°C (83°F), residents and visitors can anticipate pleasantly mild days, while the average temperature settles around 12°C (53°F). However, a sharp contrast exists with minimum temperatures dipping as low as -9°C (16°F), illustrating the region's volatile spring climate. Rain is not uncommon, as April witnesses 76 mm (3.0 in) of precipitation spread over 10 days, contributing to a humidity level of 72%. This blend of temperatures and moisture nurtures the landscape, igniting the vibrant beauty of spring in this picturesque town.

April Temperature in Kostanjevica na Krki

In April, Kostanjevica na Krki begins to shake off the chill of winter, showcasing a notable transformation in its temperatures. With a minimum of -9°C (16°F) and an average rising to 12°C (53°F), this month serves as a gentle herald of spring. The maximum can reach an impressive 28°C (83°F), encouraging residents and visitors alike to embrace outdoor activities and the blossoming nature. As temperatures steadily climb from the depths of winter's cold, April not only marks a shift in meteorological patterns but also invites a renewed sense of vitality in this charming Slovenian town. This progressive warming sets the stage for even higher averages in the following months, making April an invigorating time to experience the beauty of the region.

April Weather in Kostanjevica na Krki: Daily Temperature Highs, Lows, and Averages

The chart illustrates April temperature patterns in Kostanjevica na Krki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kostanjevica na Krki, April typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec344045536170727263544537
Data source: Temperature data for Kostanjevica na Krki generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

April Precipitation in Kostanjevica na Krki

April in Kostanjevica na Krki brings a noticeable increase in precipitation, with an average of 76 mm (3.0 in) recorded over 10 days. This surge marks a contrast to March's 56 mm (2.2 in), highlighting the transition into a wetter spring season. As nature awakens, the rainfall paves the way for vibrant blooms and lush landscapes. Looking ahead to May, precipitation spikes significantly to 140 mm (5.5 in), suggesting that April's moisture sets a crucial foundation for the lush growth to follow. The consistent pattern of precipitation in April reflects a vital shift in the region's climate dynamics, as it prepares to embrace the abundance of summer.

April Precipitation Trends in Kostanjevica na Krki

The chart displays monthly precipitation patterns in Kostanjevica na Krki, 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. In Kostanjevica na Krki, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec45705676140939390120939996
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Kostanjevica na Krki

In April, Kostanjevica na Krki experiences a notable drop in humidity, averaging 72%—a slight decrease from 75% in March. This transition into spring marks the beginning of a trend toward lower humidity levels as the year progresses. As the warmer months approach, May and June see humidity levels dip further to 70% and 69%, respectively, paving the way for the balmy days of summer. The data reveals a clear pattern: after the peak winter months, characterized by high humidity levels above 80%, the climate gradually shifts to a more comfortable, drier atmosphere, particularly in the summer, where August sees the lowest average humidity at just 51%. This rhythmic fluctuation not only enhances the charm of the changing seasons but also reflects the temperate climate of this picturesque Slovenian town.

April Average Humidity in Kostanjevica na Krki

This chart illustrates the average monthly humidity levels in Kostanjevica na Krki, with April’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In April, average humidity in Kostanjevica na Krki is approximately {2}%, offering insight into how humid the weather typically is during this month.
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 Kostanjevica na Krki

As April rolls into Kostanjevica na Krki, Slovenia, residents and visitors alike can expect a noticeable uptick in UV exposure, with the UV Index reaching 6, categorized as high. This marks a shift from the moderate levels seen in March, indicating that outdoor activities should be approached with greater caution to prevent sunburn, which can occur in just 25 minutes of unprotected exposure. Following this trend, the UV Index will continue to rise in the coming months, peaking in the summer, so it's essential to prepare accordingly. For more details on UV levels throughout the year, check out the full analysis at Kostanjevica na Krki UV Index.

Maximum UV Index Levels in Kostanjevica na Krki for April

The chart shows the monthly maximum UV Index (UVI) for Kostanjevica na Krki 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. In April, the maximum UV index in Kostanjevica na Krki typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986532
Data source: Kostanjevica na Krki 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 Kostanjevica na Krki

As April unfolds in Kostanjevica na Krki, Slovenia, it bathes the charming town in a delightful 333 hours of sunshine, marking a significant increase from the previous months. Following a gradual ascent from 161 hours in January to 307 in March, April showcases the burgeoning warmth of spring, inviting residents and visitors alike to enjoy the blossoming scenery. This upward trend continues into May and June, with sunlight peaking at 404 hours in June, hinting at the delightful summer ahead. Against this backdrop of vibrant light, April stands out as a pivotal month, bridging the chilly winter months with the generosity of sunshine that characterizes the vibrant summer days.

Monthly Sunshine Duration in Kostanjevica na Krki: April Highlighted

The April sunshine duration represents the total number of hours Kostanjevica na Krki 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.
JanFebMarAprMayJunJulAugSepOctNovDec161h223h307h333h367h404h424h390h323h288h189h204h
Data source: Kostanjevica na Krki April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kostanjevica na Krki During April

In Kostanjevica na Krki, Slovenia, the likelihood of sunny weather in April presents a moderate forecast, with a 41% chance of sunshine. This figure is a noticeable decline from March's more promising 59%, suggesting that as spring unfolds, the skies may not always be as bright. Following April, the chance of sun dips slightly further in May to 37% before rising again in June to 56%. Overall, the trend indicates that while the sunshine is somewhat unpredictable in April, nearby months may offer better prospects, allowing for optimistic planning as the region approaches the summer season.

Percentage of Sunny Days in April in Kostanjevica na Krki

The chart illustrates the percentage of sunny days in Kostanjevica na Krki 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 Kostanjevica na Krki experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%47%59%41%37%56%49%48%53%36%21%30%
Data source: Kostanjevica na Krki April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kostanjevica na Krki in April

As April arrives in Kostanjevica na Krki, the days lengthen noticeably, offering 13 hours of daylight—a significant increase from the 11 hours seen in March. This transition marks a vibrant shift towards spring, inviting residents and visitors to embrace outdoor activities and the rejuvenation of nature. The trend continues into May with 14 hours of daylight, demonstrating a steady climb that peaks in June at 15 hours. This gradual extension of sunlight not only enhances the scenic beauty of the area but also energizes the community, making April an enticing prelude to the warm months ahead.

Average Daylight Hours in Kostanjevica na Krki for April

The chart illustrates the variation in daylight duration in Kostanjevica na Krki throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 7m10h 22m11h 56m13h 33m14h 55m15h 37m15h 15m14h 1m12h 29m10h 53m9h 28m8h 44m
Data source: Kostanjevica na Krki daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Kostanjevica na Krki

As April unfolds in Kostanjevica na Krki, the gentle breeze sways through the landscapes at an average wind speed of 2.0 m/s (4 mph), mirroring the calmness of March. This consistency invites a refreshing comfort, as the winds remain steady heading into spring. Notably, April's wind speed ties with May, suggesting a pleasant transition towards warmer months, while June sees a slight dip to 1.6 m/s. The trend reveals a gradual decrease in wind speeds during the summer, hinting at the region's serene nature. Overall, April stands as a serene blend of tranquility and mild activity, perfect for enjoying the blossoming beauty of the season.

Average April Wind Speed in Kostanjevica na Krki

The chart displays monthly wind speed patterns in Kostanjevica na Krki, 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.
JanFebMarAprMayJunJulAugSepOctNovDec1.82.01.92.0 m/s2.01.61.71.51.51.91.51.5
Data source: Kostanjevica na Krki April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Kostanjevica na Krki Compares to Other Months

Weather in Kostanjevica na Krki varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Kostanjevica na Krki, focusing on differences in temperature, rainfall, humidity, and UV levels.

April weather in Kostanjevica na Krki shows a significant warming trend compared to January. With average temperatures rising from January's chilly 1°C (34°F) to a milder 12°C (53°F) in April, the month offers a max temperature of 28°C (83°F), creating more favorable conditions for outdoor activities. Additionally, April experiences a higher rainfall of 76 mm (3.0 in) over about 10 days, contrasted with January's 45 mm (1.8 in) across 8 days. While April has a lower humidity level at 72%, January's humidity sits higher at 89%, adding to the cold's brisk sensation. For more details, you can check the Kostanjevica na Krki weather in January.

When comparing the weather in April to February, April generally presents a more temperate climate. The average temperature in April is significantly higher at 12°C (53°F) compared to February’s average of 4°C (40°F). Additionally, April enjoys warmer maximum temperatures, reaching up to 28°C (83°F), while February peaks at 21°C (69°F). However, February experiences slightly lower precipitation levels at 70 mm (2.7 in) over 9 days, compared to April’s 76 mm (3.0 in) over 10 days. Humidity is also somewhat elevated in February at 83%, compared to 72% in April, making the latter month feel more comfortable overall. For more insights, visit Kostanjevica na Krki weather in February.

April weather shows a significant warming trend compared to March. In April, temperatures range from a minimum of -9°C (16°F) to a maximum of 28°C (83°F), with an average of 12°C (53°F). In contrast, March sees cooler temperatures that range from a minimum of -15°C (6°F) to a maximum of 23°C (73°F), with an average of only 7°C (45°F). Additionally, April experiences slightly higher precipitation with 76 mm (3.0 in) over 10 days, compared to March's 56 mm (2.2 in) also spread across 10 days. Humidity levels are similarly close, with April at 72% and March at 75%. For more detailed information on March weather in this region, visit Kostanjevica na Krki weather in March.

April and May present a noticeable transition in weather conditions. In April, temperatures range from a chilly minimum of -9°C (16°F) to a maximum of 28°C (83°F), with an average of 12°C (53°F). The month sees about 76 mm (3.0 in) of precipitation over 10 days, accompanied by a humidity level of 72%. In contrast, May experiences warmer weather, with temperatures ranging from a minimum of 2°C (36°F) to a maximum of 31°C (88°F), and an average temperature of 16°C (61°F). However, May is also wetter, with precipitation reaching 140 mm (5.5 in) over 18 days, while humidity remains slightly lower at 70%. For more detailed insights on the weather in May, you can refer to Kostanjevica na Krki weather in May.

April and June present contrasting weather experiences. In April, temperatures range from a chilly minimum of -9°C (16°F) to a comfortable average of 12°C (53°F), peaking at 28°C (83°F). The month sees about 76 mm (3.0 in) of precipitation spread over 10 days, with humidity levels at 72%. In contrast, June offers a warmer climate, with temperatures starting at a milder 8°C (46°F) and averaging 21°C (70°F), reaching highs of 36°C (97°F). This month experiences slightly higher precipitation at 93 mm (3.7 in) over 12 days, while humidity remains low at 69%. For more details on the weather specifics, you can check Kostanjevica na Krki weather in June.

April and July present contrasting weather conditions. In April, temperatures range from a chilly minimum of -9°C (16°F) to a pleasant average of 12°C (53°F), with peaks reaching up to 28°C (83°F). The month experiences about 76 mm (3.0 in) of precipitation over 10 days, along with a relatively high humidity level of 72%. In stark contrast, July boasts warmer temperatures with a minimum of 10°C (50°F) and a much higher average of 22°C (72°F), peaking at a sweltering 36°C (96°F). Precipitation increases slightly to 93 mm (3.7 in) across 12 days, but humidity drops to a more comfortable 64%. For a closer look at the weather specifics in July, check out Kostanjevica na Krki weather in July.

April and August present notably different weather patterns. In April, temperatures can range from a chilly -9°C (16°F) at night to a mild 28°C (83°F) during the day, with an average of 12°C (53°F). This month experiences around 76 mm (3.0 in) of precipitation over about 10 days, contributing to a relatively high humidity level of 72%. In contrast, August enjoys significantly warmer weather, with nighttime lows of 8°C (48°F) and daytime highs reaching up to 39°C (103°F), averaging at 22°C (73°F). While August sees slightly higher precipitation at 89 mm (3.5 in) over 11 days, the humidity drops to 51%, making it feel more comfortable overall. For a detailed look at weather specifics, check out Kostanjevica na Krki weather in August.

When comparing the weather in April and September, notable differences emerge. April experiences a wider temperature range, with minimums dipping down to -9°C (16°F) and maximums reaching 28°C (83°F), resulting in an average temperature of 12°C (53°F). It also sees about 76 mm (3.0 in) of precipitation over 10 days, accompanied by a humidity level of 72%. In contrast, September presents a milder climate with minimum temperatures around 3°C (38°F) and maximums soaring to 33°C (92°F), averaging at 17°C (63°F). This month records a higher precipitation total of 120 mm (4.7 in) over the same number of rainy days, but with notably lower humidity at 62%. For more specific details on September weather, you can check Kostanjevica na Krki weather in September.

April and October exhibit some similar temperature averages, both hovering around 12°C (53°F), but their overall characteristics differ significantly. April can experience a broader temperature range, with lows dipping to -9°C (16°F) and highs soaring to 28°C (83°F), while October's temperatures are milder, ranging from 0°C (32°F) to a maximum of 26°C (78°F). Precipitation levels are slightly higher in October, with 93 mm (3.7 in) of rain over nine days compared to April’s 76 mm (3.0 in) spread over ten days. Additionally, October generally feels more humid at 81%, while April has a humidity level of 72%. For more insights on October weather specifically, you can explore Kostanjevica na Krki weather in October.

April and November present distinct weather characteristics in terms of temperature and precipitation. April experiences a wider temperature range, with a minimum of -9°C (16°F), an average of 12°C (53°F), and a maximum of 28°C (83°F). Conversely, November has milder temperatures, with a minimum of -4°C (25°F), an average of 7°C (45°F), and a maximum of 21°C (69°F). Precipitation levels are higher in November, totaling 99 mm (3.9 in) over 12 days, compared to April's 76 mm (3.0 in) over 10 days. Additionally, November has a higher humidity level at 87%, while April averages 72%. For more specific details, you can check out this link: Kostanjevica na Krki weather in November.

In April, the weather in Kostanjevica na Krki tends to be milder, with average temperatures climbing to 12°C (53°F), compared to a much cooler average of 3°C (38°F) in December. While both months see a minimum temperature of -9°C (16°F), December experiences a lower maximum temperature of 18°C (65°F), indicating a more pronounced chill. Additionally, April has a slightly lower precipitation amount of 76 mm (3.0 in) over 10 days, whereas December records 96 mm (3.8 in) across 11 days, making it wetter. The humidity also rises in December to 88%, compared to April's 72%, further contributing to the overall cooler and gloomier atmosphere. For more details on December's weather, check Kostanjevica na Krki weather in December.

Compare Kostanjevica na Krki's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Kostanjevica na Krki

April in Kostanjevica na Krki marks a significant transition in weather as it ushers in milder temperatures and signs of spring. With maximums soaring to a pleasant 28°C, the month contrasts sharply with the winter chill, where temperatures can plummet to a brisk -9°C. Although humidity levels hover around 72% and rain makes its presence felt on about 10 days, the overall warming trend offers a refreshing reprieve from the colder months. This delicate balance of warmth and occasional showers creates an ideal atmosphere for blossoming nature and vibrant outdoor activities. For a deeper understanding of the year-round weather patterns, check out Kostanjevica na Krki Climate.