April Weather in Rijeka, Croatia

Last updated: March 17, 2025

In April, Rijeka, Croatia, experiences a transition into spring, marked by a maximum temperature of 23°C (74°F) and an average of 11°C (52°F). While the weather can be quite pleasant, it also brings variability, with minimum temperatures dipping to -3°C (26°F). This month sees 110 mm (4.3 in) of rain over approximately 11 days, contributing to a humidity level of around 73%. As flowers bloom and the city awakens, visitors can expect a mix of sunny days and refreshing showers, making April a compelling time to explore Rijeka's vibrant atmosphere.

April Temperature in Rijeka

As April unfolds in Rijeka, Croatia, the city experiences a delightful transition into spring, with temperatures gradually warming from the chill of winter. Daily minimums settle around -3°C (26°F), a marked improvement from the colder months, while average temperatures rise to a pleasant 11°C (52°F), inviting outdoor activities and exploration. The peaks reach a comfortable 23°C (74°F), perfect for enjoying the blossoming scenery. Compared to the preceding months, April represents a significant leap, showcasing the region's shift from the frosty conditions of March, where highs plateaued at only 20°C (68°F). This month not only heralds warmer days but also signals the approach of even higher temperatures in the following months, promising a vibrant and picturesque spring season in Rijeka.

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

The chart illustrates April temperature patterns in Rijeka, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends.
JanFebMarAprMayJunJulAugSepOctNovDec374245525969727364554841
Data source: Temperature data for Rijeka 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 Rijeka

In April, Rijeka experiences a notable transition in its precipitation patterns, with an average of 110 mm (4.3 in) falling over 11 days. This amount marks a slight decrease from the wetter months of January through March but remains consistent with the overall trend of the early spring. The city’s relatively stable rainfall prepares the landscape for the lush growth that follows in May, where precipitation spikes to 164 mm (6.5 in) over 19 days. April serves as a crucial bridge, maintaining enough moisture to support budding flora while hinting at the drier summer months ahead. As spring unfolds, Rijeka's climate showcases a balance, inviting both sun and rain, which ultimately enriches its vibrant natural scenery.

April Precipitation Trends in Rijeka

The chart displays monthly precipitation patterns in Rijeka, 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.
JanFebMarAprMayJunJulAugSepOctNovDec105168115110164748572195162204227
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Rijeka

April in Rijeka, Croatia, brings a sense of seasonal transition as humidity levels stabilize at 73%, mirroring those of March. This trend suggests a gradual easing from the winter months, which are notably more humid, peaking at 88% in January and 89% in November. As spring unfolds, the humidity begins to trend downward, leading into the warmer summer months. The contrast is striking; by August, humidity drops to a refreshing 51%, setting the stage for a dry and pleasant summer, before rising again in the autumn. Overall, April captures that sweet spot of mild humidity, perfect for those looking to enjoy the awakening beauty of Rijeka.

April Average Humidity in Rijeka

This chart illustrates the average monthly humidity levels in Rijeka, 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.
JanFebMarAprMayJunJulAugSepOctNovDec88%82%73%73%70%69%63%51%64%83%89%88%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Rijeka

As April arrives in Rijeka, Croatia, the sun begins to shine more brightly, with a UV Index of 6 that signals a high exposure category. This marks a noticeable uptick from the previous months, where January’s low index of 2 and February’s moderate 3 kept sunbathers relatively safe. With a burn time of just 25 minutes, it’s essential to be mindful of sun safety practices, as UV levels continue to rise towards the summer months. By May, the UV Index escalates dramatically to 8, indicating very high exposure and a burn time of only 15 minutes. This upward trend emphasizes the importance of protective measures throughout the spring and summer seasons. For detailed information on UV levels, check out Rijeka UV Index.

Maximum UV Index Levels in Rijeka for April

The chart shows the monthly maximum UV Index (UVI) for Rijeka 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.
JanFebMarAprMayJunJulAugSepOctNovDec235689987532
Data source: Rijeka 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 Rijeka

As April unfurls in Rijeka, Croatia, the city basks in an impressive 349 hours of sunshine, marking a delightful transition into spring. This month showcases a notable increase in daylight, continuing the upward trend that began in the gloomy winter months of January and February, which offered only 185 and 232 hours of sun, respectively. By March, the sunshine hours surged to 320, foreshadowing the vibrant warmth of April and the approaching summer. With May bringing in even greater sunshine at 384 hours and June peaking at 420 hours, April serves as a cheerful prelude to the sun-drenched days ahead, inviting residents and visitors alike to revel in the blooming beauty of the season.

Monthly Sunshine Duration in Rijeka: April Highlighted

The April sunshine duration represents the total number of hours Rijeka 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.
JanFebMarAprMayJunJulAugSepOctNovDec185h232h320h349h384h420h432h401h331h302h233h223h
Data source: Rijeka April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Rijeka During April

In Rijeka, Croatia, the likelihood of sunny weather shows a dynamic pattern as the year progresses. After a promising March with 59% chances of sunshine, April sees a notable dip to 38%, highlighting a transitional phase as spring unfolds. This fluctuation is typical, as the region shifts from the cooler months, where January and February offer a mere 24% and 35% respectively, to sunnier days in the summer months, reaching 58% in June. Following April, the chance of sun rebounds in May and continues to rise, peaking in mid-summer. Thus, while April may not guarantee abundant sunshine, it serves as a bridge to the brighter days ahead in Rijeka.

Percentage of Sunny Days in April in Rijeka

The chart illustrates the percentage of sunny days in Rijeka 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 Rijeka experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec24%35%59%38%37%58%53%59%57%42%27%35%
Data source: Rijeka April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Rijeka in April

In April, Rijeka, Croatia, basks in about 13 hours of daylight, marking a noticeable leap from the 11 hours in March. This increase signals the arrival of spring, as days grow longer and brighter, inviting residents and visitors alike to enjoy the city's vibrant outdoor life. Following the trend, daylight continues to extend into May, reaching 14 hours, and peaks in June with 15 hours. The gradual progression from the shorter days of winter reflects a refreshing transition towards the sun-drenched days of summer, creating an atmosphere filled with warmth and energy. As winter recedes, Rijeka embraces longer days, allowing for more exploration and enjoyment of its stunning coastline and cultural offerings.

Average Daylight Hours in Rijeka for April

The chart illustrates the variation in daylight duration in Rijeka throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec9h 9m10h 23m11h 56m13h 32m14h 53m15h 34m15h 12m14h12h 28m10h 54m9h 30m8h 46m
Data source: Rijeka daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Rijeka

April in Rijeka, Croatia, brings a gentle embrace of soft breezes with an average wind speed of 2.8 m/s (6 mph), mirroring the calmness felt in March and May. This stability in wind patterns signifies a transition towards warmer days, as the gusts begin to ease before the summer’s peak. Historically, April winds show a slight dip from previous months, echoing a tranquil early spring ambiance. As Rijeka shakes off the chill of winter, the consistencies in wind speed hint at a serene environment, perfect for leisurely strolls along the waterfront or enjoying outdoor cafés. With mild conditions prevailing, the April winds set a delightful tone for the month ahead.

Average April Wind Speed in Rijeka

The chart displays monthly wind speed patterns in Rijeka, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.93.12.82.8 m/s2.82.02.32.72.53.73.32.7
Data source: Rijeka April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Rijeka Compares to Other Months

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

April and January present contrasting weather patterns in Rijeka. In January, temperatures range from a chilly -13°C (10°F) to a maximum of 13°C (56°F), with an average of 3°C (38°F). This month also experiences higher humidity at 88% and 9 days of precipitation totaling 105 mm (4.1 in). In sharp contrast, April sees milder temperatures, with minimums around -3°C (26°F) and highs reaching 23°C (74°F), and an average temperature of 11°C (52°F). Although April has slightly more precipitation at 110 mm (4.3 in) over 11 days, the humidity is lower at 73%. For a more detailed look at January's weather, visit Rijeka weather in January.

When comparing the weather in April and February, April tends to be significantly warmer, with average temperatures rising from February's chilly 5°C (42°F) to a more comfortable 11°C (52°F). While February experiences colder temperatures with a minimum of -9°C (16°F), April's lows are much milder at -3°C (26°F). However, February sees greater precipitation, with 168 mm (6.6 in) over 13 days compared to April's 110 mm (4.3 in) across 11 days. Humidity levels are also higher in February at 82%, compared to 73% in April, suggesting a damp chill in the earlier month. For a more detailed look at February's weather, you can check this link: Rijeka weather in February.

In comparing the weather of April and March, April generally presents milder conditions. While March experiences lower average temperatures, with a minimum of -11°C (13°F) and a maximum of 20°C (68°F), April sees a slight rise, featuring a minimum of -3°C (26°F) and a maximum of 23°C (74°F). While precipitation is slightly higher in March at 115 mm (4.5 in), April still has significant rainfall, totaling 110 mm (4.3 in) over 11 days, compared to 13 days in March. Notably, both months maintain the same humidity level of 73%. For more detailed information, you can check Rijeka weather in March.

April and May exhibit distinct weather patterns, marking a notable transition from spring to early summer. In April, temperatures range from a minimum of -3°C (26°F) to a maximum of 23°C (74°F), with an average of 11°C (52°F). The month experiences considerable rainfall, totaling 110 mm (4.3 inches) over 11 days, alongside a humidity level of 73%. In contrast, May sees a milder temperature range, with minimums rising to 4°C (39°F) and maximums reaching 25°C (78°F), resulting in a pleasant average of 15°C (59°F). However, this month also brings increased precipitation, totaling 164 mm (6.5 inches) across 19 days, albeit with slightly lower humidity at 70%. For a detailed look at the weather conditions in May, check out Rijeka weather in May.

April and June present distinct weather patterns, highlighting the transition from spring to summer. In April, temperatures range from a chilly minimum of -3°C (26°F) to a comfortable maximum of 23°C (74°F), with an average of 11°C (52°F). This month typically sees around 110 mm (4.3 in) of precipitation over 11 days, accompanied by a humidity level of 73%. In contrast, June boasts warmer weather, with temperatures fluctuating from a minimum of 9°C (49°F) to a maximum of 34°C (93°F), averaging 20°C (69°F). Rainfall decreases to 74 mm (2.9 in) over just 10 days, and humidity levels slightly drop to 69%. For more detailed information on June weather, you can visit Rijeka weather in June.

April and July present strikingly different weather patterns in Rijeka. In April, temperatures range from a chilly minimum of -3°C (26°F) to a balmy maximum of 23°C (74°F), with an average temperature of 11°C (52°F). This month sees considerable precipitation, totaling 110 mm (4.3 in) over approximately 11 days, and a humidity level of 73%. In contrast, July offers a much warmer climate with temperatures starting at a minimum of 13°C (56°F) and peaking at 31°C (89°F), averaging around 22°C (72°F). The summer month experiences less rainfall, with 85 mm (3.3 in) spread over the same number of days, and lower humidity at 63%. For more detailed insights into July weather, you can visit Rijeka weather in July.

April weather in Rijeka presents a cooler and wetter atmosphere, with temperatures ranging from a chilly -3°C (26°F) to a comfortable high of 23°C (74°F). The month typically sees around 110 mm (4.3 in) of precipitation over approximately 11 days, coupled with a higher humidity level of 73%, which can make the air feel damp.

In contrast, August brings much warmer conditions, with minimum temperatures around 12°C (54°F) and daytime highs reaching up to 33°C (93°F). Precipitation decreases significantly to 72 mm (2.8 in) over just 7 days, and humidity levels drop to 51%, making it a more enjoyable time for outdoor activities. For a more detailed look at August weather, you can check out Rijeka weather in August.

April and September showcase distinct weather patterns, highlighting the transition from early spring to early autumn. In April, temperatures can dip as low as -3°C (26°F), with pleasant averages around 11°C (52°F) and highs reaching up to 23°C (74°F). The month sees considerable precipitation, averaging 110 mm (4.3 in) over about 11 days, and humidity levels are relatively high at 73%. In contrast, September offers a milder climate with minimum temperatures of 7°C (44°F) and comfortable averages of 18°C (64°F), peaking at 29°C (85°F). This month experiences more rainfall, totaling 194 mm (7.7 in) also spread over 11 days, but the humidity decreases to 64%. For those interested in more specific information, you can check out Rijeka weather in September.

April and October present notably different weather patterns. In April, temperatures range from a chilly minimum of -3°C (26°F) to a pleasant average of 11°C (52°F), peaking at 23°C (74°F). It’s a month marked by moderate rainfall, with approximately 110 mm (4.3 in) spread over around 11 days, and a relative humidity of 73%. In contrast, October experiences a slightly warmer temperature profile, with a minimum of 4°C (39°F) and an average of 13°C (56°F), reaching a maximum of 24°C (75°F). However, it brings increased precipitation, totaling 162 mm (6.4 in) across about 12 days, accompanied by higher humidity levels at 83%. For more detailed insights, you can check this link: Rijeka weather in October.

April and November in Rijeka present quite different weather experiences. In April, temperatures range from a chilly minimum of -3°C (26°F) to a pleasant maximum of 23°C (74°F), with an average of 11°C (52°F). The month sees about 110 mm (4.3 in) of precipitation over approximately 11 days, with a humidity level of 73%. In contrast, November is generally cooler, with temperatures ranging from -1°C (31°F) to a maximum of 18°C (65°F) and an average of 9°C (48°F). The rainfall increases significantly to 204 mm (8.0 in) over 14 days, accompanied by higher humidity at 89%. For more details, you can check Rijeka weather in November.

April and December present quite contrasting weather patterns. In April, temperatures range from a chilly minimum of -3°C (26°F) to a warm maximum of 23°C (74°F), with an average of 11°C (52°F). This month experiences moderate precipitation of 110 mm (4.3 in) spread over 11 days, accompanied by a humidity level of 73%. In stark contrast, December has colder conditions, with temperatures dipping to a minimum of -7°C (20°F) and peaking at a maximum of 14°C (57°F), averaging just 5°C (41°F). The month is much wetter, with a total precipitation of 226 mm (8.9 in) over 15 days and higher humidity at 88%. For more specific insights, you can check Rijeka weather in December.

Compare Rijeka's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Rijeka

As April unfolds in Rijeka, the city experiences a welcome transition from the chill of winter to the mild embrace of spring. With maximum temperatures reaching up to 23°C (74°F) and an average that comfortably settles around 11°C (52°F), it contrasts significantly with the colder months that preceded it. However, this budding warmth does come with a touch of rain, as the city sees around 110 mm of precipitation over approximately 11 days, adding a refreshing vibrance to the landscape. The humidity level hovers at 73%, giving the air a crisp yet invigorating quality. This month serves as a pleasant preview of the summer to come, making it a perfect time for outdoor explorations amidst blossoming scenery. For a deeper dive into Rijeka's climate, check out Rijeka Climate.