April Weather in Ibaraki, Japan

Last updated: August 21, 2025

In Ibaraki, Japan, April heralds the arrival of spring with a delightful blend of warm temperatures and blooming nature. The maximum temperature can reach a pleasant 26°C (79°F), while the average temperature settles around 15°C (59°F), providing a comfortable atmosphere for outdoor activities. However, the month also brings occasional showers, with a total precipitation of 135 mm (5.3 in) spread over approximately 10 days, contributing to the region's lush greenery. With an average humidity level of 76%, the air feels refreshing, making it an ideal time to experience the vibrant beauty of Ibaraki’s spring season.

April Temperature in Ibaraki

In April, Ibaraki experiences a delightful transition into spring, with temperatures embarking on a notable upward trend. The month opens with a minimum of 3°C (37°F), signaling the end of the chill, and evolves into a pleasant average of 15°C (59°F), peaking at a delightful 26°C (79°F). This rise from the cool early months to the warm embrace of late spring illustrates a significant warming trend, making April a vibrant and inviting time to explore the region. As nature bursts into bloom, the milder weather encourages outdoor activities and showcases Ibaraki's stunning landscapes, drawing visitors eager to experience the season's charm.

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

The chart illustrates April temperature patterns in Ibaraki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Ibaraki, 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).
JanFebMarAprMayJunJulAugSepOctNovDec424351596874828577675647
Data source: Temperature data for Ibaraki 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 Ibaraki

In April, Ibaraki, Japan, experiences a notable increase in precipitation, accumulating 135 mm (5.3 in) over 10 days of rain. This surge marks a progression from the steadily rising rainfall observed in the preceding months; March recorded 109 mm (4.3 in). The arrival of spring brings not only milder temperatures but also a significant drought of moisture, paving the way for the wetter months ahead. Following April, May and June continue this trend, with precipitation peaking in July at a staggering 282 mm (11.1 in). This upward trajectory emphasizes the region's shift from the drier winter months to a lush, verdant spring and summer landscape, showcasing Ibaraki's rich seasonal contrasts.

April Precipitation Trends in Ibaraki

The chart displays monthly precipitation patterns in Ibaraki, 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 Ibaraki, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec46601091351501472821831692304457
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
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April Humidity in Ibaraki

In April, Ibaraki, Japan, experiences a relative humidity of 76%, marking a slight increase from the drier March but still significantly lower than the sweltering summer months that follow. This transitional period signals the shift towards more humid conditions, as the humidity is poised to rise sharply in May and peak in the summer, with July reaching a staggering 93%. The gradual progression from January's high of 82% to April’s moderate levels illustrates the seasonal fluctuations typical of this region, offering a taste of the warmth and humidity that will soon envelop Ibaraki as spring gives way to summer.

April Average Humidity in Ibaraki

This chart illustrates the average monthly humidity levels in Ibaraki, 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 Ibaraki is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec82%79%74%76%83%87%93%91%87%85%83%83%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Ibaraki

In April, Ibaraki experiences a significant rise in the UV Index, peaking at 11, which categorizes the exposure as extreme. This marks a notable shift from the previous months, where the UV levels steadily increased from a moderate 4 in January to a very high 8 in March. With a burn time of just 10 minutes, it's essential for residents and visitors alike to prioritize sun safety this month. As the season progresses into May and June, the UV Index remains at this concerning level, emphasizing the need for protective measures even as temperatures rise. For ongoing updates and recommendations on sun safety, visit the Ibaraki UV Index.

Maximum UV Index Levels in Ibaraki for April

The chart shows the monthly maximum UV Index (UVI) for Ibaraki 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 Ibaraki typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121110753
Data source: Ibaraki 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 Ibaraki

April in Ibaraki, Japan, ushers in a delightful surge of sunlight, with 279 hours illuminating the landscape, marking a continued upward trend since the winter months. This increase from 265 hours in March reflects the region's gradual transition into the warmth of spring, setting the stage for the vibrant month of May, which boasts an impressive 291 hours of sunshine. April's abundant light not only enhances the natural beauty but also invigorates the community, as outdoor activities blossom alongside the blooming flora. As the seasons progress, Ibaraki enjoys a consistent embrace of sunny days, allowing residents and visitors alike to revel in the growing warmth and brightness.

Monthly Sunshine Duration in Ibaraki: April Highlighted

The April sunshine duration represents the total number of hours Ibaraki 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.
JanFebMarAprMayJunJulAugSepOctNovDec185h229h265h279h291h268h258h305h242h237h236h221h
Data source: Ibaraki April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Ibaraki During April

In Ibaraki, Japan, April brings a moderate 45% chance of sunny weather—a slight dip compared to the brighter days of winter, which see figures around the 49% to 57% range from January to March. As spring unfolds, the promise of sunshine begins to wane slightly, giving way to the rainier months ahead, with May and June plummeting to only 29% and 24%, respectively. Interestingly, while April may not boast the highest likelihood of sun, it remains a pivotal transition month, hinting at the vibrant bloom of spring even as the clouds start to gather. This shifting trend underscores the fleeting nature of sunlight as Ibaraki approaches its lush, rainy season.

Percentage of Sunny Days in April in Ibaraki

The chart illustrates the percentage of sunny days in Ibaraki 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 Ibaraki experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec49%52%41%45%29%24%32%28%30%53%52%57%
Data source: Ibaraki April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Ibaraki in April

As spring unfolds in Ibaraki, Japan, April marks a significant shift in daylight duration, with the lengthening days bringing a refreshing vibrancy to the landscape. Boasting 13 hours of daylight, April does not just bridge the transition from winter to summer but also mirrors the gradual increase seen over the preceding months. Following a consistent 10 hours in January and February, daylight advances to 11 hours in March, heralding a notable jump in April. This increase continues into May, where daylight remains at 13 hours, before peaking at 14 hours in June and July. As the year progresses, there's a gentle tapering back, with daylight hours gradually decreasing into autumn. This rhythm of rising and falling daylight draws a pleasing arc through the calendar, inviting the community to embrace the beauty of the changing seasons.

Average Daylight Hours in Ibaraki for April

The chart illustrates the variation in daylight duration in Ibaraki throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 5m10h 54m11h 58m13h 3m13h 58m14h 25m14h 12m13h 24m12h 21m11h 16m10h 20m9h 51m
Data source: Ibaraki daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Ibaraki

In April, Ibaraki experiences a gentle breeze with an average wind speed of 2.7 m/s (6 mph), creating a serene atmosphere as spring unfolds. This consistent speed, mirroring March and slightly lower than the preceding months, hints at the stability of the early spring climate. As the month progresses, the winds become a backdrop to blossoming cherry trees and vibrant fields, perfectly complementing the region's awakening landscape. The calming airflow seen in April continues into May, emphasizing a tranquil transition into the warmer months ahead. Interestingly, this time of year contrasts with the stronger gusts earlier in the year, showcasing how Ibaraki's coastal location influences its mild spring weather patterns.

Average April Wind Speed in Ibaraki

The chart displays monthly wind speed patterns in Ibaraki, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.93.12.72.7 m/s2.71.82.02.42.22.22.32.8
Data source: Ibaraki April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Ibaraki Compares to Other Months

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

In April, the weather typically becomes much milder and more pleasant compared to January, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 26°C (79°F) and an average of 15°C (59°F). This month is also characterized by higher precipitation, totaling 135 mm (5.3 in) over approximately 10 days, resulting in a humidity level of 76%. In contrast, January features colder temperatures, with a minimum of -3°C (26°F) and a maximum of 18°C (64°F), averaging only 6°C (42°F). The precipitation is significantly less at 46 mm (1.8 in) over about 6 days, although humidity is slightly higher at 82%. For more detailed insights, you can check Ibaraki weather in January.

In comparing the weather of April and February, we can observe a notable shift in temperatures and overall conditions. April begins to warm up, featuring an average temperature of 15°C (59°F), with a minimum of 3°C (37°F) and a maximum reaching up to 26°C (79°F). In contrast, February remains much cooler, with average temperatures around 6°C (43°F) and a minimum dipping to -3°C (26°F). Additionally, while April experiences more precipitation—135 mm (5.3 in) over 10 days—February sees significantly less, with only 60 mm (2.3 in) over 6 days. Although both months have relatively high humidity levels, February's 79% surpasses April's 76%. For more details on February weather, you can refer to Ibaraki weather in February.

April's weather showcases a noticeable warming trend compared to March, with average temperatures rising from 10°C (51°F) in March to 15°C (59°F) in April. The minimum temperature increases from -1°C (31°F) to 3°C (37°F), while the maximum temperature reaches a pleasant 26°C (79°F) in April, slightly higher than March's maximum of 23°C (73°F). Although April sees a slight uptick in overall precipitation to 135 mm (5.3 in) over 10 days, March also had considerable rainfall at 109 mm (4.3 in) across 11 days. Humidity remains relatively similar, with April at 76% and March at 74%. For more detailed insights on March's weather, visit Ibaraki weather in March.

April and May exhibit notable differences in weather patterns. In April, temperatures range from a minimum of 3°C (37°F) to a maximum of 26°C (79°F), with an average of 15°C (59°F). The month experiences a substantial amount of rainfall, totaling 135 mm (5.3 in) over about 10 days, accompanied by a humidity level of 76%. In contrast, May brings warmer temperatures, with a minimum of 8°C (47°F) and a maximum reaching 31°C (88°F), resulting in an average of 20°C (69°F). Rainfall increases slightly to 150 mm (5.9 in) over the same number of days, and humidity rises to 83%. Overall, May feels much warmer and more humid compared to April. For more detailed information, check Ibaraki weather in May.

April and June present distinct contrasts in weather. April features a cooler temperature range, with minimums around 3°C (37°F) and average highs reaching 26°C (79°F). It also experiences significant precipitation, totaling 135 mm (5.3 in) over approximately 10 days, alongside a humidity level of 76%. In contrast, June boasts warmer conditions, with minimum temperatures starting at 14°C (58°F) and average highs climbing to 32°C (89°F). Precipitation increases slightly to 147 mm (5.8 in) over 12 days, accompanied by higher humidity at 87%. For more details on the June weather, visit Ibaraki weather in June.

April and July present contrasting weather experiences. In April, temperatures range from a cool minimum of 3°C (37°F) to a pleasant maximum of 26°C (79°F), with an average temperature of 15°C (59°F). The month typically sees about 135 mm (5.3 in) of precipitation over 10 days and humidity levels around 76%. In stark contrast, July brings much warmer conditions, with minimum temperatures of 20°C (69°F) and a maximum reaching up to 37°C (99°F), resulting in an average temperature of 28°C (82°F). This hotter month also experiences higher precipitation, totaling 282 mm (11.1 in) over 18 days, coupled with increased humidity at 93%. For more specific insights, check out the detailed overview of Ibaraki weather in July.

April and August exhibit striking contrasts in weather conditions. In April, the temperatures range from a cool minimum of 3°C (37°F) to a pleasant maximum of 26°C (79°F), with an average temperature of 15°C (59°F). The month also experiences considerable rainfall, with about 135 mm (5.3 in) of precipitation over approximately 10 days, accompanied by a humidity level of 76%. In contrast, August is much warmer, with temperatures soaring from a minimum of 19°C (66°F) to a peak of 38°C (101°F), averaging 29°C (85°F). This month is wetter too, receiving 183 mm (7.2 in) of rainfall over 12 days, and the humidity rises to a notable 91%. For more detailed insights into weather trends during this month, check out Ibaraki weather in August.

April weather is characterized by milder temperatures, with daily averages around 15°C (59°F) and a maximum of 26°C (79°F), making it a pleasant transitional month. However, it also experiences significant rainfall, with 135 mm (5.3 in) of precipitation over ten days, contributing to a humidity level of 76%.

In contrast, September sees warmer conditions, featuring higher minimum temperatures of 15°C (59°F) and average highs reaching 25°C (78°F), occasionally soaring to 37°C (99°F). This month is also wetter, with 169 mm (6.7 in) of rain falling over 15 days, resulting in increased humidity levels at 87%. For a more detailed look at September weather patterns, visit Ibaraki weather in September.

April and October present contrasting weather conditions that reflect the transition between spring and autumn. In April, temperatures range from a chilly 3°C (37°F) to a warm 26°C (79°F), with an average of 15°C (59°F). During this month, precipitation is moderate at 135 mm (5.3 in) over about 10 days, and humidity sits around 76%. In contrast, October boasts warmer temperatures, with a minimum of 8°C (46°F), an average of 20°C (67°F), and a maximum reaching up to 33°C (91°F). However, it also experiences higher rainfall, totaling 230 mm (9.0 in) over approximately 12 days, accompanied by increased humidity at 85%. For a closer look at October weather patterns, check out Ibaraki weather in October.

April and November both present moderate temperatures, but they do have their differences. In April, temperatures range from a minimum of 3°C (37°F) to a maximum of 26°C (79°F), with an average of 15°C (59°F). The month is relatively wet, experiencing about 135 mm (5.3 in) of precipitation over approximately 10 days and a humidity level of 76%. In contrast, November tends to be cooler with temperatures ranging from 2°C (35°F) to a maximum of 25°C (78°F), averaging at 13°C (56°F). Precipitation is significantly lower at 44 mm (1.7 in) spread over just 6 days, accompanied by a higher humidity of 83%. For a detailed look at November weather, visit Ibaraki weather in November.

April and December present contrasting weather patterns. In April, temperatures range from a cool minimum of 3°C (37°F) to a pleasant maximum of 26°C (79°F), with an average of 15°C (59°F). The month is characterized by considerable rainfall, with approximately 135 mm (5.3 inches) over 10 days, and a humidity level of 76%. In contrast, December experiences chillier conditions, with minimum temperatures dropping to -1°C (30°F) and a maximum of 22°C (71°F), averaging around 8°C (47°F). Precipitation is significantly lower in December, at 57 mm (2.2 inches) over just 6 days, and humidity rises slightly to 83%. For more details on December weather, you can check Ibaraki weather in December.

Compare Ibaraki's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Ibaraki

As April unfolds in Ibaraki, the weather shifts notably from the cooler months of winter to a more temperate climate, inviting the emergence of spring. With pleasant average temperatures rising to around 15°C (59°F) and maximum highs reaching a comfortable 26°C (79°F), the month feels refreshing compared to the frigid conditions of previous seasons. While precipitation is somewhat frequent, with about 10 rainy days, the increased humidity at 76% enhances the spring ambiance, making it ideal for outdoor activities. Transitioning from winter's chill to April's warmth, this month sets the stage for vibrant blooms and invigorating landscapes, showcasing a distinct character that marks the arrival of spring. For detailed insights into the region's weather patterns throughout the year, visit Ibaraki Climate.