April Weather in Kawasaki, Japan

Last updated: August 21, 2025

April in Kawasaki, Japan showcases a vibrant transition into spring, marked by a maximum temperature reaching 28°C (82°F) and a milder average of 15°C (59°F). While the weather offers warm days, it can also present cool evenings with a minimum temperature dipping to 1°C (35°F). This month experiences significant precipitation, totaling 112 mm (4.4 in) across approximately 9 days, contributing to the region's lush, blooming landscapes. With an average humidity level of 78%, the air feels fresh yet slightly damp, creating the perfect backdrop for enjoying the seasonal beauty of Kawasaki.

April Temperature in Kawasaki

In Kawasaki, Japan, April marks a significant transition as the chill of winter gives way to the warmth of spring. With minimum temperatures rising to 1°C (35°F), the days become notably more inviting. The average temperature climbs to a comfortable 15°C (59°F), and maximums can reach a delightful 28°C (82°F), showcasing the region's embrace of milder weather. This month, blooming cherry blossoms and budding foliage create a vibrant backdrop, inviting locals and tourists alike to enjoy outdoor activities. As temperatures continue to rise from the brisk early months, April serves as a gentle herald of the sunnier days ahead in Kawasaki.

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

The chart illustrates April temperature patterns in Kawasaki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Kawasaki, 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).
JanFebMarAprMayJunJulAugSepOctNovDec424452596874808375665545
Data source: Temperature data for Kawasaki 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 Kawasaki

In April, Kawasaki experiences a notable precipitation trend, with 112 mm (4.4 in) of rain falling over 9 days. This amount is slightly less than the preceding month of March, which recorded 117 mm despite having two extra days of rainfall. The steady precipitation during April continues the pattern of spring showers, nurturing the blossoming landscape and maintaining the flourishing cherry blossoms that attract visitors to the region. Following April, May sees a significant increase in rainfall with 162 mm, indicating a shift towards the wetter season as Kawasaki prepares for the intense summer months ahead. Overall, April serves as a transitional period, bridging the cooler, wetter early spring with the impending monsoon.

April Precipitation Trends in Kawasaki

The chart displays monthly precipitation patterns in Kawasaki, 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 Kawasaki, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec53751171121622003562691891155062
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Kawasaki

In April, Kawasaki experiences a notable rise in humidity to 78%, which is slightly above the levels recorded in March and February. This increase heralds the arrival of spring, as warmer temperatures set in, creating a more muggy atmosphere that foreshadows the even higher humidity levels expected in the coming months. As the city transitions into May, humidity surges further to 84%, marking the start of a more humid season that peaks in the summer. Overall, April acts as a pivotal point, bridging the lower humidity of winter and early spring to the increasingly muggy conditions of summer, making it a definitive month in Kawasaki’s climatological calendar.

April Average Humidity in Kawasaki

This chart illustrates the average monthly humidity levels in Kawasaki, 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 Kawasaki is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec75%71%71%78%84%86%92%91%84%83%81%79%
Data source: Humidity data for April generated using information from the Copernicus Climate Change Service.

April UV Index in Kawasaki

In April, Kawasaki experiences a significant jump in UV exposure as the UV Index reaches an extreme level of 11, indicating a burn time of just 10 minutes for unprotected skin. This sharp increase follows the gradual rise from January's moderate Index of 4 and reflects a clear trend of intensifying sunlight as spring settles in. With the UV Index remaining at 11 through May and June, it's crucial for residents and visitors alike to take necessary precautions to protect themselves from harmful UV rays. As summer approaches, this trend highlights the importance of being vigilant about sun safety throughout the warmer months. For more detailed insights on UV levels, check out Kawasaki UV Index.

Maximum UV Index Levels in Kawasaki for April

The chart shows the monthly maximum UV Index (UVI) for Kawasaki 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 Kawasaki typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468111111121211764
Data source: Kawasaki 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 Kawasaki

April in Kawasaki, Japan, ushers in a delightful embrace of sunshine, with an impressive 278 hours of bright daylight that marks a significant increase from the previous months. Following the steady ascent from January's 178 hours to February's 233 hours and March's 261 hours, April solidifies the trend of lengthening days as spring unfolds. As nature awakens, the transition from the stillness of winter to the vibrancy of spring is palpable, with sunlight peaking yet again in May at 294 hours. This upward trajectory not only highlights the emerging warmth but also invites residents and visitors alike to bask in the revitalizing glow, making April a pivotal month in Kawasaki's seasonal rhythm.

Monthly Sunshine Duration in Kawasaki: April Highlighted

The April sunshine duration represents the total number of hours Kawasaki 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.
JanFebMarAprMayJunJulAugSepOctNovDec178h233h261h278h294h275h274h301h251h252h235h218h
Data source: Kawasaki April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Kawasaki During April

In Kawasaki, Japan, the likelihood of sunny weather in April is approximately 42%, indicating a modestly brighter outlook as spring unfolds. This marks a slight increase from the preceding months of January and March, both at 35%, and showcases an improvement over the 30% chance seen in the following month of May. While April doesn't boast the sunniest prospects in the yearly cycle, the moderate increase hints at the transition into warmer, sunnier days as the year progresses. Interestingly, this trend continues toward the end of the year, with October peaking at a 62% chance of sun, suggesting that Kawasaki's spring can be a delightful time for outdoor activities and enjoying the blossoming scenery.

Percentage of Sunny Days in April in Kawasaki

The chart illustrates the percentage of sunny days in Kawasaki 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 Kawasaki experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec35%45%35%42%30%23%20%24%30%62%50%46%
Data source: Kawasaki April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Kawasaki in April

As spring unfolds in Kawasaki, Japan, April brings a noticeable increase in daylight duration, extending to an impressive 13 hours. This trend marks a significant leap from the 11 hours seen in March, as nature awakens and vibrant blooms herald the new season. Following April, the daylight remains constant, maintaining that same length into May, before ramping up to 14 hours in June and July. This gradual escalation from early spring to early summer showcases a delightful progression, offering longer days filled with warmth and possibility. As the year unfolds, daylight gradually recedes through the fall and winter months, revisiting the 10 hours seen during January and February. This cyclical rhythm of light not only enhances outdoor activities but also enriches the cultural tapestry of life in Kawasaki throughout the year.

Average Daylight Hours in Kawasaki for April

The chart illustrates the variation in daylight duration in Kawasaki throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 11m10h 57m11h 58m13h13h 53m14h 19m14h 6m13h 20m12h 21m11h 19m10h 25m9h 57m
Data source: Kawasaki daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Kawasaki

As April arrives in Kawasaki, Japan, the average wind speed settles at a gentle 2.6 m/s (6 mph), marking a slight increase from March's calm breezes. This consistency mirrors the mild weather typical of spring, where the winds start to play a pivotal role in the awakening of nature. Notably, April shares its average with May, suggesting that this time of year is characterized by a refreshing stability in wind patterns, perfect for outdoor activities and enjoying the blossoming scenery. Looking ahead, the wind tends to mellow in June, dropping to 1.7 m/s (4 mph), indicating that the tranquil moments of spring are slowly giving way to the warmth of summer.

Average April Wind Speed in Kawasaki

The chart displays monthly wind speed patterns in Kawasaki, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.53.12.42.6 m/s2.61.72.42.12.11.92.32.5
Data source: Kawasaki April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Kawasaki Compares to Other Months

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

When comparing the weather in April and January, it's clear that April tends to be much warmer with average temperatures reaching 15°C (59°F), compared to January's average of 6°C (42°F). In January, temperatures can dip as low as -4°C (25°F), while April boasts a maximum of 28°C (82°F). Additionally, April experiences significantly more precipitation, totaling 112 mm (4.4 in) over 9 days, compared to January’s 53 mm (2.1 in) over 7 days, though the humidity remains relatively similar with 78% in April and 75% in January. For a more detailed look at January weather in this area, you can check out Kawasaki weather in January.

When comparing the weather between February and April, April tends to be significantly warmer and wetter. In February, the minimum temperature dips to -5°C (24°F) with an average of 7°C (44°F) and a maximum of 22°C (72°F). In contrast, April experiences milder conditions, with temperatures ranging from a minimum of 1°C (35°F) to an average of 15°C (59°F), peaking at 28°C (82°F). While both months see about 9 days of precipitation, April has a higher total rainfall of 112 mm (4.4 in), compared to February's 75 mm (2.9 in). Additionally, April boasts a higher humidity level of 78% versus February's 71%. For more detailed insights, check out Kawasaki weather in February.

In comparing the weather of April to March, it's evident that April brings milder temperatures, with an average of 15°C (59°F) compared to March's cooler average of 11°C (52°F). The minimum temperature in April is warmer as well, at 1°C (35°F), while March dips to a low of -2°C (29°F). Both months see significant rainfall, with April accumulating 112 mm (4.4 in) over 9 days, slightly less than March's 117 mm (4.6 in) across 11 days. Humidity levels are also higher in April at 78%, compared to March's 71%. For a more detailed look at March's weather, you can visit Kawasaki weather in March.

April and May showcase a notable shift in weather patterns. In April, temperatures range from a chilly 1°C (35°F) at night to a pleasant maximum of 28°C (82°F) during the day, with an average temperature of 15°C (59°F). However, this month also experiences frequent rainfall, totaling 112 mm (4.4 in) across 9 rainy days, while humidity sits at 78%.

In contrast, May brings warmer conditions, with minimum temperatures rising to 5°C (42°F) and maximum temperatures reaching 32°C (89°F), leading to a more comfortable average of 20°C (68°F). Rainfall increases to 162 mm (6.4 in) over 11 days, alongside a slight uptick in humidity to 84%. For more details, check out Kawasaki weather in May.

The weather in April and June presents a noticeable contrast. In April, temperatures range from a chilly 1°C (35°F) at night to a warm 28°C (82°F) during the day, with an average of 15°C (59°F). The month also experiences significant rainfall, totaling 112 mm (4.4 in) across 9 days and a humidity level of 78%. In comparison, June sees much warmer temperatures, with a minimum of 14°C (57°F) and a maximum of 32°C (90°F), averaging 23°C (74°F). This month is wetter, accumulating 200 mm (7.9 in) of precipitation over 14 days and recording a higher humidity of 86%. For a closer look at June's weather specifics, check out Kawasaki weather in June.

April and July exhibit stark contrasts in weather. In April, temperatures range from a chilly minimum of 1°C (35°F) to a pleasant average of 15°C (59°F) and a maximum of 28°C (82°F). Meanwhile, July experiences significantly warmer temperatures, with minimums around 17°C (63°F), averaging 27°C (80°F), and peaking at a scorching 36°C (96°F). Precipitation also varies markedly; April sees 112 mm (4.4 in) of rain over 9 days, while July is much wetter, with 356 mm (14.0 in) of rainfall spread across 20 days. Additionally, humidity in July is noticeably higher at 92%, compared to April's 78%. For more details on the weather in July, check out Kawasaki weather in July.

In April, the weather is noticeably cooler, with temperatures ranging from a minimum of 1°C (35°F) to a maximum of 28°C (82°F) and an average of 15°C (59°F). The month experiences a fair amount of precipitation, with about 112 mm (4.4 inches) falling over approximately 9 days, along with a humidity level of 78%. In contrast, August brings a significant rise in temperatures, with a minimum of 19°C (66°F) and a maximum of 38°C (100°F), averaging around 28°C (83°F). Additionally, August is characterized by higher rainfall, totaling 269 mm (10.6 inches) spread across about 14 days, and an increase in humidity to 91%. For more details on the specific climate conditions during this month, check out Kawasaki weather in August.

April and September present notably different weather conditions. In April, temperatures typically range from a cooler minimum of 1°C (35°F) to a pleasant average of 15°C (59°F), with maximums hitting 28°C (82°F). However, the month also sees frequent rain, accumulating about 112 mm (4.4 in) over approximately 9 days, and a relative humidity of 78%. In contrast, September brings warmer temperatures, with minimums around 12°C (54°F) and averages reaching 24°C (76°F), peaking at 35°C (95°F). Rainfall is more substantial as well, totaling 189 mm (7.4 in) across 15 days and a slightly higher humidity level of 84%. For more specific details, you can check the Kawasaki weather in September.

April and October present a notable contrast in weather conditions. In April, temperatures fluctuate more dramatically, with a minimum of 1°C (35°F) and a maximum reaching 28°C (82°F), while October features milder temperatures that range from a minimum of 7°C (45°F) to a maximum of 31°C (89°F). Precipitation levels are similar in both months, averaging around 112-115 mm (4.4-4.5 in) over about 9 days, but October tends to be slightly more humid at 83% compared to April's 78%. Overall, October offers a warmer and somewhat more humid climate, making it distinct from the cooler, more variable April weather. For more details, you can check Kawasaki weather in October.

April and November showcase distinct weather patterns. In April, temperatures range from a chilly 1°C (35°F) at night to a warm 28°C (82°F) during the day, averaging around 15°C (59°F). This month typically experiences higher precipitation at 112 mm (4.4 in) over about 9 days, alongside a humidity level of 78%. Conversely, November brings cooler conditions, with nighttime temperatures dipping to -1°C (30°F) and daytime highs reaching 26°C (79°F), averaging 13°C (55°F). Precipitation is notably lower at 50 mm (1.9 in) over 7 days, and humidity slightly increases to 81%. For more detailed information, you can check Kawasaki weather in November.

April and December in Kawasaki exhibit contrasting weather patterns that reflect the transition between spring and winter. In April, temperatures range from a chilly 1°C (35°F) at night to a warm 28°C (82°F) during the day, with an average of 15°C (59°F). This month sees significant rainfall, totaling 112 mm (4.4 in) over 9 days, while humidity remains high at 78%. In contrast, December experiences cooler temperatures, dipping to a minimum of -2°C (28°F) and reaching a maximum of 22°C (72°F), with an average of 7°C (45°F). Precipitation is lighter in December, with only 61 mm (2.4 in) occurring over 7 days, and humidity is slightly higher at 79%. For more specific details on December weather, you can check Kawasaki weather in December.

Compare Kawasaki's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Kawasaki

As April unfolds in Kawasaki, the city's weather showcases a remarkable shift from the colder months, bringing a refreshing blend of mild temperatures and a noticeable uptick in humidity. While the maximum temperatures climb to inviting levels, residents and visitors alike can expect the occasional rainfall, with precipitation sprinkled throughout the month. This transition into spring not only enhances the lush greenery but also encourages outdoor activities, making it a delightful time to explore the vibrant surroundings. For those curious about the broader climate trends and how they vary throughout the year, detailed information can be found at Kawasaki Climate.