Last updated: August 21, 2025
April in Hamamatsu, Japan offers a delightful blend of mild temperatures and refreshing rain. With maximum temperatures peaking at 28°C (83°F) and an average of 15°C (60°F), the month is perfect for enjoying the blossoming scenery. However, the chill can be felt with minimum temperatures dropping to 3°C (37°F). Rainfall is quite significant, with 172 mm (6.8 in) accumulating over 11 days, contributing to the lush greenery. The humidity level at 74% adds a touch of moisture to the air, creating a vibrant and lively atmosphere ideal for outdoor activities and floral displays.
In April, Hamamatsu begins to shake off the chill of winter, with temperatures ranging from a minimum of 3°C (37°F) to a comfortable maximum of 28°C (83°F). The average temperature reaches 15°C (60°F), marking a noticeable warming trend as spring blossomed. This month acts as a bridge between the coolness of early spring and the warmer days that follow in May, making it an ideal time for outdoor activities, as the city sheds its winter attire. As the days grow longer and the sun shines brighter, residents and visitors alike can enjoy the vibrant beauty of the season, all while experiencing a significant uplift in temperatures compared to the preceding months.
April marks a significant uptick in precipitation in Hamamatsu, Japan, with 172 mm (6.8 inches) of rain accumulated over 11 days. This increase follows a notably wet March, underscoring a transitional phase as spring unfolds. While January, February, and March collectively laid the groundwork for rising rainfall, April serves as a clear indicator of the region's shift toward its rainier season. The persistent April showers set the stage for even heavier downpours in May and June, emphasizing a trend of escalating precipitation as the year progresses. As spring deepens, residents can expect more frequent rain, contributing to the lush landscapes that characterize the area during this vibrant time of year.
In April, Hamamatsu, Japan experiences a slight rebound in humidity, averaging 74% after a gradual decline from 76% in January to 70% in March. This stabilization hints at the onset of a more humid season, as May brings a sharp rise to 81%. The trend indicates a consistent increase in humidity levels through the spring and into summer, peaking at a steamy 93% in July. The transitioning months highlight the city's shifting climate, where April serves as a pivotal point, bridging the cooler, drier spring to the warm, high-humidity summer ahead.
In April, Hamamatsu, Japan, sees a notable increase in UV intensity, with the UV Index reaching 10, which falls into the very high exposure category. This surge indicates that residents and visitors alike should take extra precautions, as the burn time shrinks to just 15 minutes. Following a trend from March, where the index was slightly lower at 8, April marks a significant jump, foreshadowing even higher levels in May with an extreme index of 11. This upward trajectory emphasizes the importance of sun safety as the temperatures rise and outdoor activities become more prevalent. For detailed insights and daily updates, you can visit the Hamamatsu UV Index.
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In Hamamatsu, Japan, the arrival of April brings a delightful surge in sunshine, with the region basking in 281 hours of sunlight—up from 269 hours in March, marking a vibrant transition into spring. This increase is part of a broader trend as the days lengthen and the warmth of the season beckons, leading into an even brighter May with 299 hours of sunshine. The steady rise from the chill of winter, which saw merely 189 hours in January, highlights how April serves as a pivotal month for outdoor activities and nature’s revival, providing residents and visitors alike with the perfect opportunity to enjoy the blooming beauty of the surroundings. As summer approaches, the sunlight peaks in August, but April’s sunny disposition sets the stage for the pleasant days ahead.
As April rolls in, Hamamatsu experiences a modest 47% chance of sunny weather, marking a slight dip from the preceding months. This decline follows a trend observed from March's 45%, suggesting that while the early spring may bring some sun, it's not as prevalent as during the winter months, where January and February boast impressive chances of 58% and 60% respectively. Looking ahead, the likelihood continues to decrease into May at 28%, indicating that sunshine may become more elusive as the region transitions towards the heat of summer. Thus, while April offers a mix of sun and clouds, those seeking endless sunny days might want to enjoy the lingering brightness before the weather turns more temperamental in the months ahead.
As spring unfolds in Hamamatsu, Japan, April brings a delightful increase in daylight duration, with the days stretching to a vibrant 13 hours. This marks a significant rise from the 11 hours experienced in March, signaling the transition into warmer months. Following April, May and June maintain this extended daylight, allowing residents to bask in longer evenings and enjoy outdoor activities. The gradual climb from winter’s shorter days of 10 hours in January and February to the blossoming brightness of spring highlights a captivating trend of increasing daylight that peaks in June. As summer approaches, the city prepares to embrace 14 hours of daylight, fostering a lively atmosphere as the hours of sunshine influence both nature and daily life.
In April, Hamamatsu experiences a gentle breeze, with an average wind speed of 3.7 m/s (8 mph)—a slight decline from the more brisk conditions of March. This reduction signifies the transition into spring, where the winds soften and complement the blossoming landscape. Interestingly, April's wind speed remains lower than January's and February's averages, which hover around 4.6 m/s (10 mph) and 4.7 m/s (11 mph) respectively. As the season progresses into May, there is a modest uptick in wind speed back to 3.9 m/s (9 mph), hinting at a dynamic climate that embraces warm air as it bids farewell to cooler winter gusts. Overall, April's winds reflect a beautiful shift towards warmer days, offering a refreshing respite in the heart of spring.
Weather in Hamamatsu varies notably across the year, with each month offering distinct climate conditions. This page compares April’s weather to other months in Hamamatsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
April weather is generally milder and more varied compared to January. While January experiences colder temperatures with a minimum of -2°C (29°F) and an average of 7°C (44°F), April sees a more comfortable range, with a minimum of 3°C (37°F) and an average of 15°C (60°F). Additionally, April has significantly higher precipitation, averaging 172 mm (6.8 in) over 11 days, while January sees much less, with only 51 mm (2.0 in) spread over just 4 days. Both months have similar humidity levels, hovering around 74% in April and 76% in January. For a closer look at January's weather specifics, you can check out Hamamatsu weather in January.
April weather in Hamamatsu is notably warmer, with average temperatures ranging from 3°C (37°F) to 28°C (83°F), while February experiences cooler conditions, with temperatures from -2°C (29°F) to a maximum of 21°C (71°F). Precipitation is more frequent in April, with 172 mm (6.8 in) over 11 days, compared to February's 76 mm (3.0 in) across just 6 days. Interestingly, both months maintain the same humidity level of 74%, creating a rather humid atmosphere as spring begins. For further details on February weather, visit Hamamatsu weather in February.
In comparing the weather between March and April, we see a noticeable increase in average temperatures as April boasts a minimum of 3°C (37°F), an average of 15°C (60°F), and a maximum of 28°C (83°F), compared to March's minimum of 1°C (34°F), average of 12°C (53°F), and maximum of 25°C (77°F). Although both months experience substantial precipitation—April with 172 mm (6.8 in) and March with 166 mm (6.5 in)—April has slightly more rainy days, totaling 11 compared to March's 10. Additionally, humidity levels are higher in April at 74% versus 70% in March, contributing to a distinctly more humid atmosphere. For more detailed information, you can visit Hamamatsu weather in March.
April and May show a noticeable shift in weather patterns. April experiences a wider temperature range, with minimums as low as 3°C (37°F) and maximums reaching up to 28°C (83°F), while May brings warmer conditions, featuring a minimum temperature of 9°C (49°F) and a maximum of 32°C (90°F). Precipitation is slightly higher in May, with 198 mm (7.8 in) over 12 days compared to April's 172 mm (6.8 in) over 11 days. Additionally, humidity levels increase from 74% in April to 81% in May, contributing to a more humid atmosphere as spring progresses. For more details on the weather in May, visit Hamamatsu weather in May.
April and June present notable contrasts in weather, with April experiencing milder temperatures and significant variability. The minimum temperature in April drops to 3°C (37°F), peaking at a maximum of 28°C (83°F) and averaging around 15°C (60°F). In contrast, June enjoys warmer conditions, with temperatures ranging from a minimum of 15°C (59°F) to a maximum of 32°C (90°F), averaging 23°C (74°F).
Precipitation is also markedly higher in June, accumulating 261 mm (10.3 in) over 16 days, compared to April's 172 mm (6.8 in) over 11 days. Additionally, humidity levels are elevated in June at 88%, while April sees a lower humidity rate of 74%. For more details on June weather, you can visit Hamamatsu weather in June.
In April, temperatures in Hamamatsu range from a chilly minimum of 3°C (37°F) to a comfortable maximum of 28°C (83°F), with an average temperature of 15°C (60°F). The month experiences significant precipitation, totaling 172 mm (6.8 in) across about 11 days, accompanied by a humidity level of 74%. In contrast, July brings a much warmer climate, with temperatures ranging from a minimum of 19°C (67°F) to a scorching maximum of 40°C (105°F) and an average of 27°C (81°F). This month sees even higher precipitation, totaling 408 mm (16.1 in) over approximately 21 days, with humidity soaring to 93%. For more detailed insights into July weather patterns, check out Hamamatsu weather in July.
The weather in April and August presents a striking contrast, particularly in temperature and humidity levels. April experiences a mild range, with minimum temperatures around 3°C (37°F) and maximums reaching 28°C (83°F), accompanied by an average temperature of 15°C (60°F). However, it also features significant rainfall, totaling 172 mm (6.8 in) over 11 days and a humidity level of 74%. In contrast, August brings much warmer conditions, with minimum temperatures rising to 20°C (68°F) and maximums soaring to 42°C (107°F), averaging 29°C (84°F). It also has higher precipitation levels at 197 mm (7.8 in) over 15 days, with humidity peaking at 90%. For more detailed insights on August weather, you can check Hamamatsu weather in August.
April and September showcase contrasting weather patterns, shaping the experience of each month. In April, temperatures range from a cool 3°C (37°F) at night to a comfortable 28°C (83°F) during the day, with an average of 15°C (60°F). The month also brings significant rainfall, totaling 172 mm (6.8 in) over 11 days, accompanied by humidity levels around 74%. In contrast, September is warmer, with nighttime lows of 15°C (60°F) and daytime highs reaching 36°C (96°F), averaging 25°C (77°F). Rainfall increases to 222 mm (8.7 in) spread over 20 days, and humidity levels rise to 86%. This comparison highlights how April offers milder and dryer conditions, while September tends to be hotter and wetter. For more specific details, check Hamamatsu weather in September.
April and October present contrasting weather patterns, showcasing a transition from spring to autumn. In April, temperatures range from a minimum of 3°C (37°F) to a maximum of 28°C (83°F), with an average of 15°C (60°F). The month experiences about 172 mm (6.8 in) of precipitation over 11 days, accompanied by a humidity level of 74%. In contrast, October offers milder temperatures, with a minimum of 10°C (50°F) and a maximum of 32°C (89°F), averaging 20°C (68°F). However, it also brings increased rainfall, with around 293 mm (11.5 in) of precipitation spread over 15 days, and humidity levels rise to 83%. For more detailed information, you can check Hamamatsu weather in October.
April and November present distinct weather characteristics despite their similar average temperatures. In April, temperatures range from a chilly 3°C (37°F) at night to a warm 28°C (83°F) during the day, with average conditions hovering around 15°C (60°F). The month is marked by significant rainfall, totaling approximately 172 mm (6.8 in) over 11 days, coupled with a humidity level of 74%. In contrast, November features a slightly cooler maximum temperature of 24°C (75°F) and maintains the same minimum of 3°C (38°F). Precipitation is notably less, at 83 mm (3.3 in) over just 8 days, with humidity rising to 80%. For more details on the unique climate during this month, check out Hamamatsu weather in November.
When comparing the weather in April and December, notable differences in temperature and precipitation emerge. April typically boasts a minimum temperature of 3°C (37°F) and an average of 15°C (60°F), peaking at 28°C (83°F). In contrast, December experiences cooler conditions, with a minimum of 0°C (32°F) and an average temperature of just 9°C (49°F), with a maximum reaching 23°C (74°F). While April sees more precipitation at 172 mm (6.8 in) over 11 days, December has a significantly lower total of 67 mm (2.6 in) across only 6 days, though humidity is slightly higher in December at 78%. For more specific details about December weather in Hamamatsu, you can visit Hamamatsu weather in December.
April in Hamamatsu marks a vibrant transition from the coolness of winter to the warmth of spring. With temperatures rising significantly, the month showcases a delightful blend of mild average temperatures and occasional warm days, inviting residents and visitors to embrace outdoor activities. However, April is also known for its moderate rainfall, with precipitation occurring on about a third of the days, contributing to the lush surroundings that characterize this time of year. The moderate humidity level enhances the fresh ambiance, making it distinct from the often hotter and drier summer months. For a deeper insight into Hamamatsu's climate patterns throughout the year, be sure to check Hamamatsu Climate.