April Weather in Celje, Slovenia

Last updated: August 27, 2025

April in Celje, Slovenia, is a month of transformation, where spring begins to blossom. With a maximum temperature reaching 26°C (80°F), the days offer a pleasant warmth, while the average temperature hovers around 10°C (51°F), providing a comfortable climate for outdoor activities. However, the season also brings cooler nights, with minimum temperatures dipping to -8°C (18°F). Expect some rain, as precipitation amounts can total up to 80 mm (3.2 in) over approximately 11 days, contributing to a humidity level of 73%. Overall, April offers a blend of mild days and cool evenings, making it a delightful time to experience Celje's burgeoning nature.

April Temperature in Celje

In April, Celje, Slovenia, experiences a delightful transition into spring, marked by steadily rising temperatures. The month begins with a chilly minimum of -8°C (18°F), but as days progress, the average climbs to a comfortable 10°C (51°F) and peaks at a sunny 26°C (80°F). This significant increase from the preceding months reflects a notable shift from winter’s grip to the warmth of spring, inviting both locals and visitors to enjoy outdoor activities. The gradual warming trend not only signifies the end of frosty nights but also sets the stage for even warmer May temperatures, highlighting April as a month of renewal and blossoming potential in Celje.

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

The chart illustrates April temperature patterns in Celje, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Celje, 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).
JanFebMarAprMayJunJulAugSepOctNovDec333843515868707061524335
Data source: Temperature data for Celje 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 Celje

April in Celje, Slovenia marks a significant increase in rainfall, receiving 80 mm (3.2 in) of precipitation over 11 days. This surge reflects the transition into spring, as temperatures rise and the landscape begins to bloom. Compared to March, where precipitation measured 57 mm (2.2 in) over the same number of days, April’s wetter conditions herald a shift toward the wetter months ahead. The landscape becomes vibrant, setting a lively backdrop for outdoor activities, though May follows with even more substantial rainfall, often transforming the region into a lush green haven. Overall, April serves as a pivotal month, bridging the cooler winter rains with the more abundant spring and early summer showers.

April Precipitation Trends in Celje

The chart displays monthly precipitation patterns in Celje, 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 Celje, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec3764578014282121104127719886
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Celje

As spring unfolds in Celje, Slovenia, April brings a noticeable dip in humidity, dropping to 73% from the higher levels of earlier months. This decline marks a transition toward drier conditions, reflecting the gradual warming and blossoming of the season. Following the trend set by February’s 84% and March’s 78% humidity, April’s figures suggest a continued move away from the winter months’ dampness. Interestingly, the month precedes an even lower humidity in May, which records 71%, hinting at the warming influence of approaching summer. Observing this pattern, one can anticipate a shift towards more comfortable and enjoyable weather as the year progresses, paving the way for vibrant outdoor experiences.

April Average Humidity in Celje

This chart illustrates the average monthly humidity levels in Celje, 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 Celje is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec90%84%78%73%71%73%70%60%65%84%89%89%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Celje

As spring unfolds in Celje, Slovenia, the UV Index takes a notable jump in April, reaching a value of 6, categorized as high. This marks an upward shift from the previous months—where the index was low in January and gradually increased during February and March. With a burn time of just 25 minutes, it's essential for residents and visitors to keep sun safety in mind as they enjoy the longer days. The trend suggests that as we move toward summer, UV exposure will only intensify, peaking in May and June, so taking precautions now can set the tone for a safe, sun-filled season ahead. For more details, visit the Celje UV Index.

Maximum UV Index Levels in Celje for April

The chart shows the monthly maximum UV Index (UVI) for Celje 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 Celje typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec235689986432
Data source: Celje 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 Celje

As April unfolds in Celje, Slovenia, the city basks in a radiant glow with an impressive 332 hours of sunshine. This marks a significant leap from the preceding months, with March's cloudy days yielding to the warmth of spring. The trend reveals a steady increase in sunlight as the year progresses, with April serving as a delightful precursor to the sun-drenched days of summer. Following this pattern, May and June promise even more brilliance, reaching up to 396 hours and 418 hours respectively, culminating in the sunniest stretch of the year. The bright days not only invigorate the landscape but also uplift the spirit, inviting residents and visitors alike to embrace outdoor adventures under the blue Slovene skies.

Monthly Sunshine Duration in Celje: April Highlighted

The April sunshine duration represents the total number of hours Celje 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.
JanFebMarAprMayJunJulAugSepOctNovDec165h212h298h332h358h396h418h385h311h279h191h201h
Data source: Celje April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Celje During April

April in Celje, Slovenia, brings a moderate chance of sunshine, with 36% of the days likely to be sunny. While this is a slight dip from the increasing sunshine seen in March, where the likelihood climbs to 56%, it remains consistent with May’s forecasted sunny days. As spring unfolds, it is evident that sunlight becomes more frequent as the months progress — from a modest 27% in January, peaking at 56% in March before tapering off slightly in April. This gradual trend towards sunnier days hints at the welcoming warmth of the coming summer months, making April a transitional period filled with promise for outdoor activities despite its occasional cloud cover.

Percentage of Sunny Days in April in Celje

The chart illustrates the percentage of sunny days in Celje 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 Celje experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec27%46%56%36%36%52%48%43%51%37%25%33%
Data source: Celje April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Celje in April

As spring unfolds in Celje, Slovenia, April brings a notable increase in daylight, with an average of 13 hours — a significant jump from the 11 hours seen in March. This transition marks a spirited shift towards longer days, heralding the approach of summer. Following this pattern, May continues the trend with even lighter evenings, offering 14 hours of daylight. This gradual lengthening of daylight hours not only brightens the landscape but also invites residents to embrace outdoor activities. In just three months, Celje experiences a remarkable evolution from the shorter winter days of January and February, setting the stage for the sun-drenched months ahead.

Average Daylight Hours in Celje for April

The chart illustrates the variation in daylight duration in Celje throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 3m10h 20m11h 56m13h 35m14h 59m15h 42m15h 19m14h 4m12h 29m10h 51m9h 24m8h 39m
Data source: Celje daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Celje

As April unfolds in Celje, Slovenia, the average wind speed reaches a gentle 2.1 m/s (5 mph), mirroring the briskness of spring. This slight uptick from March's 1.9 m/s suggests a refreshing transition as nature awakens. While sporadic breezes sweep through the city, they are reminiscent of the consistent winds seen earlier in the year, especially compared to the calmer months of summer that follow, where speeds dip to 1.6 m/s in August and September. This seasonal pattern highlights how, despite the overall milder winds, April serves as a herald of vibrant life and change, capturing both the energy of spring and the promise of warmer days ahead.

Average April Wind Speed in Celje

The chart displays monthly wind speed patterns in Celje, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.02.21.92.1 m/s2.01.81.91.61.62.01.51.7
Data source: Celje April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Celje Compares to Other Months

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

In comparing the weather between April and January, it’s clear that April enjoys milder and more variable temperatures, with a minimum of -8°C (18°F) and a comfortable average of 10°C (51°F), peaking at a maximum of 26°C (80°F). In contrast, January is much colder, with temperatures ranging from a frigid -17°C (2°F) to a maximum of only 12°C (55°F), resulting in a notably lower average of 0°C (33°F). Additionally, April experiences more precipitation, with 80 mm (3.2 in) spread over 11 days, while January has just 37 mm (1.5 in) over 6 days. The humidity is also higher in January at 90%, compared to 73% in April. For more detailed information, you can check Celje weather in January.

April and February showcase distinct weather patterns as the seasons transition from winter to spring. In April, temperatures rise significantly, with an average of 10°C (51°F) and daytime highs reaching up to 26°C (80°F), whereas February remains chilly, averaging only 3°C (38°F) and featuring a maximum of 20°C (67°F). Precipitation is moderately higher in April at 80 mm (3.2 in) over 11 days, compared to February's 64 mm (2.5 in) across 9 days. Additionally, February tends to be more humid at 84%, while April experiences slightly lower humidity at 73%. For more details on February weather, you can check Celje weather in February.

April generally brings milder temperatures compared to March, with a notable increase in the average temperature from 6°C (43°F) in March to 10°C (51°F) in April. April's minimum temperature is less harsh, dipping to -8°C (18°F) versus March's low of -16°C (4°F). Additionally, while March sees a maximum of 22°C (71°F), April can reach up to 26°C (80°F). Precipitation increases in April to 80 mm (3.2 in) over 11 days, compared to 57 mm (2.2 in) over 9 days in March. Despite being slightly less humid in April at 73%, both months demonstrate relatively high humidity levels, with March at 78%. For a detailed comparison of March weather in Celje, you can check Celje weather in March.

April and May present a notable transition in weather patterns. In April, temperatures can drop as low as -8°C (18°F) but can reach up to 26°C (80°F), with an average of 10°C (51°F). The month sees about 80 mm (3.2 in) of precipitation over approximately 11 days, accompanied by a humidity level of 73%. In contrast, May brings slightly warmer temperatures, with a minimum of 0°C (33°F), an average of 15°C (58°F), and a maximum reaching 29°C (85°F). However, it experiences increased rainfall, totaling 142 mm (5.6 in) over 19 days, with humidity slightly lower at 71%. This shift reflects a gradual warming trend, despite the uptick in rainy days. For more detailed insights into May weather specifics, you can check Celje weather in May.

In comparing the weather between April and June, we see a notable transition in temperatures and conditions. April experiences a wider temperature range, with minimums dipping as low as -8°C (18°F) and maximums reaching up to 26°C (80°F), leading to a cooler average of 10°C (51°F). The month also sees around 80 mm (3.2 in) of precipitation over 11 days, maintaining a humidity level of 73%.

In contrast, June brings significantly warmer weather, with minimum temperatures rising to 6°C (43°F) and maximums soaring to 34°C (94°F), resulting in a much milder average of 20°C (68°F). Although June has slightly more precipitation at 82 mm (3.2 in) over 13 days, the consistent warmth and longer daylight hours mark a clear shift toward a summer climate. For more details, you can check out the specific conditions for Celje weather in June.

April and July exhibit notably different weather patterns. In April, temperatures range from a chilly minimum of -8°C (18°F) to a pleasant maximum of 26°C (80°F), with an average of 10°C (51°F), indicating the transition from winter to spring. This month experiences around 80 mm (3.2 in) of precipitation spread over 11 days, accompanied by a relatively high humidity of 73%. In contrast, July brings warmer temperatures, with a minimum of 10°C (50°F), an average of 21°C (70°F), and a high of 33°C (92°F). The month is wetter, with total precipitation reaching 121 mm (4.8 in) over 15 days, and a slightly lower humidity level of 70%. For a detailed look at the conditions in July, you can visit Celje weather in July.

April and August present distinctly different weather characteristics. In April, temperatures range from a chilly -8°C (18°F) at night to a mild average of 10°C (51°F), peaking at 26°C (80°F) during the day. The month sees about 80 mm (3.2 in) of precipitation over 11 days, with humidity levels around 73%, adding a cool dampness to the air. In contrast, August offers a warmer climate, with temperatures starting at a minimum of 7°C (45°F), averaging 21°C (70°F), and soaring to a maximum of 36°C (96°F). This month experiences slightly more rainfall at 104 mm (4.1 in) across 13 days, but the humidity drops to 60%, resulting in a more comfortable atmosphere. For further details, check out Celje weather in August.

April and September present notably different weather patterns. In April, temperatures can fluctuate significantly, with a minimum of -8°C (18°F) and a maximum reaching 26°C (80°F), while the average temperature rests at around 10°C (51°F). This month experiences an average precipitation of 80 mm (3.2 in) over approximately 11 days, contributing to a humidity level of 73%.

Conversely, September tends to be milder and more consistent in temperature, with minimums around 2°C (36°F) and maximums soaring to 30°C (87°F), resulting in an average of 16°C (61°F). However, this month is wetter, garnering 127 mm (5.0 in) of rain over about 12 days, alongside a lower humidity of 65%.

For a more detailed look at the climate, you can explore Celje weather in September.

April and October exhibit distinct weather characteristics. In April, temperatures range from a minimum of -8°C (18°F) to a maximum of 26°C (80°F), with an average temperature of 10°C (51°F). This month experiences about 80 mm (3.2 in) of precipitation over 11 days and has a humidity level of 73%. In contrast, October features slightly milder temperatures, with a minimum of -1°C (31°F), an average of 11°C (52°F), and a maximum of 24°C (75°F). The month receives less rainfall, totaling 71 mm (2.8 in) across 8 days, and has a higher humidity of 84%. For more detailed insights, check out Celje weather in October.

April and November exhibit distinct weather patterns, with notable differences in temperature and humidity. In April, temperatures range from a minimum of -8°C (18°F) to a maximum of 26°C (80°F), resulting in an average of 10°C (51°F). The month receives about 80 mm (3.2 in) of precipitation over 11 days, accompanied by a humidity level of 73%. In contrast, November presents cooler conditions with temperatures fluctuating from -6°C (22°F) at the lowest to a maximum of 20°C (69°F), averaging 6°C (43°F). This month sees slightly increased precipitation at 98 mm (3.9 in), also spread over 11 days, and a higher humidity level of 89%. For more detailed information, check out Celje weather in November.

April and December exhibit notably different weather patterns in terms of temperature and humidity. In April, temperatures range from a minimum of -8°C (18°F) to a pleasant maximum of 26°C (80°F), with an average of 10°C (51°F). The month experiences around 80 mm (3.2 in) of precipitation over 11 days, and humidity sits at a moderate 73%. In contrast, December is much colder, with temperatures dropping to a minimum of -15°C (5°F) and peaking at a maximum of 15°C (60°F), averaging just 2°C (35°F). The precipitation in December is slightly higher at 86 mm (3.4 in), occurring over 9 days, and the humidity is elevated at 89%. For more details on December's weather, you can refer to Celje weather in December.

Compare Celje's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Celje

April in Celje marks a significant transition from the lingering chill of winter to the inviting warmth of spring. With average temperatures rising to a comfortable 10°C, residents and visitors alike can enjoy the mild days that occasionally flirt with highs of 26°C. However, this month is also characterized by frequent rainfall, with about 11 days experiencing precipitation, making it one of the wetter periods compared to the drier summer months. The humidity level sits at a notable 73%, contributing to the fresh, invigorating air that often accompanies spring blooms. As Celje emerges from winter's embrace, April provides a delightful blend of cooler nights and sunlit days, heralding the vibrant season ahead. For a comprehensive overview of what to expect, check out Celje Climate.