April Weather in Tsushima, Japan

Last updated: August 21, 2025

In April, Tsushima, Japan experiences a dynamic climate characterized by a maximum temperature reaching up to 29°C (84°F), while the average hovers around a pleasant 14°C (58°F). The minimum temperature can dip to a chilly -1°C (31°F), showcasing the variability of spring. Rainfall is significant this month, with precipitation totaling 163 mm (6.4 in) over about 10 days, resulting in an average humidity level of 76%. This blend of temperatures and moisture creates a vibrant atmosphere, perfect for experiencing the natural beauty of Tsushima during the transition from winter to spring.

April Temperature in Tsushima

In April, Tsushima, Japan, experiences a refreshing transition into spring, with temperatures reflecting a notable rise. The month starts with minimum temperatures around -1°C (31°F), indicating the last whispers of winter. However, as the month progresses, the **average temperature climbs to a pleasant 14°C (58°F) and can peak at a delightful 29°C (84°F) on warmer days. This shift not only heralds blooming flowers and vibrant landscapes but also invites locals and tourists alike to embrace outdoor activities. Compared to the preceding months, April showcases a remarkable increase in warmth, representing a significant departure from the cooler confines of winter, and setting the stage for the warmer months ahead.

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

The chart illustrates April temperature patterns in Tsushima, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Tsushima, 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).
JanFebMarAprMayJunJulAugSepOctNovDec414250586773808476665545
Data source: Temperature data for Tsushima 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 Tsushima

In April, Tsushima sees a noticeable increase in precipitation, with 163 mm (6.4 in) of rain falling over 10 days. This uptick marks a steady rise from the previous months, reflecting a shift towards the wet season as spring progresses. Following March's 151 mm (6.0 in) of rainfall, April not only continues this trend but also sets the stage for the significantly wetter months ahead, with May and June averaging around 196 mm (7.7 in). The increasing precipitation illustrates the island's transition into a lush, vibrant landscape, though it may also suggest the need for residents and visitors to prepare for more frequent rainy days. As summer approaches, understanding this pattern becomes essential for managing activities on this picturesque island.

April Precipitation Trends in Tsushima

The chart displays monthly precipitation patterns in Tsushima, 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 Tsushima, April typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec52591511631961963842532252466168
Data source: Precipitation data for April generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

April Humidity in Tsushima

In April, Tsushima, Japan experiences a relative dip in humidity, averaging around 76%, compared to the higher levels seen in the preceding months. After a gradual decline from January's 82%, humidity levels stabilize somewhat as spring settles in. This shift reflects the transition into more temperate weather, which ultimately paves the way for a rapid increase in humidity as the region approaches the sweltering summer months of May and June. As the year progresses, Tsushima's humidity will surge, peaking at 93% in July, illustrating the island's marked seasonal fluctuations in moisture.

April Average Humidity in Tsushima

This chart illustrates the average monthly humidity levels in Tsushima, 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 Tsushima 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 Tsushima

April in Tsushima, Japan, marks a significant shift in UV exposure, as the UV Index soars to 10, categorizing it as very high. With a burn time of just 15 minutes, outdoor enthusiasts should remain vigilant, as skin can begin to suffer from damage in a blink. This upward trend in UV levels, following March's high of 8, heralds the approach of summer and underscores the importance of sun protection. As May approaches with its extreme UV Index of 11, ensuring adequate sunscreen and protective clothing becomes essential. For more detailed information on UV levels throughout the year, visit Tsushima UV Index.

Maximum UV Index Levels in Tsushima for April

The chart shows the monthly maximum UV Index (UVI) for Tsushima 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 Tsushima typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec468101111111110753
Data source: Tsushima 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 Tsushima

As April unfolds in Tsushima, Japan, the island basks in a delightful 276 hours of sunshine, marking a vibrant increase compared to the earlier months. This trend of ascending daylight hours began in January with a modest 185 hours, gradually building momentum as winter transitioned into spring. March saw a notable boost to 265 hours, planting the seeds for the blossom of April’s radiant skies. Looking ahead, May is poised to surpass this with 290 hours, promising even more opportunities to soak up the sun's warm rays. This consistent rise in sunshine throughout the early months not only heralds the beauty of spring but also invites residents and visitors alike to revel in the abundant natural splendor that Tsushima offers.

Monthly Sunshine Duration in Tsushima: April Highlighted

The April sunshine duration represents the total number of hours Tsushima 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.
JanFebMarAprMayJunJulAugSepOctNovDec185h231h265h276h290h270h256h300h244h234h239h223h
Data source: Tsushima April Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Tsushima During April

April in Tsushima, Japan, showcases a moderate 48% chance of sunny weather, offering a pleasant transition from the cooler early months of the year. This figure is slightly lower than January and February, both at 50%, and reflects a gradual decline from March’s 43%. As spring sets in, the likelihood of sunshine dips to its lowest in May at just 26%, hinting at the region's shifting climate as it approaches the rainy season. Overall, while April may not boast a high probability of sunshine, it stands as a balanced month where mild weather can still surprise residents and visitors alike with those cherished sunny moments.

Percentage of Sunny Days in April in Tsushima

The chart illustrates the percentage of sunny days in Tsushima 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 Tsushima experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec50%50%44%48%26%23%31%27%29%56%59%53%
Data source: Tsushima April chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Tsushima in April

As spring awakens in Tsushima, Japan, April brings a noticeable increase in daylight duration, expanding to an impressive 13 hours. This is a marked improvement from March, which offered just 11 hours of light, signaling the onset of longer days. Looking ahead, May is poised to provide even more sunlight, reaching 14 hours, creating an inviting atmosphere for outdoor activities. This gradual transition from the shorter days of winter—characterized by 10 hours in January and February—illustrates a clear trend toward longer and brighter days as the year advances. April sets the stage for the vibrant and illuminated months ahead, as nature bursts into life under the extended daylight.

Average Daylight Hours in Tsushima for April

The chart illustrates the variation in daylight duration in Tsushima throughout the year, with April highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 3m10h 53m11h 58m13h 4m14h14h 28m14h 14m13h 25m12h 22m11h 16m10h 18m9h 48m
Data source: Tsushima daylight hours, calculated by summing the hours between sunrise and sunset for each day.

April Winds in Tsushima

As spring breathes life into Tsushima, Japan, April's winds offer a refreshing embrace with an average speed of 3.0 m/s (7 mph), mirroring March's gentle breezes. This consistent wind pattern signifies a transition, as the island shakes off the winter chill and prepares for the warmer months ahead. Following April, May sees a dip to 2.5 m/s (6 mph), hinting at a softer breeze as nature shifts into full bloom. The winds gradually mellow into summer, showcasing a seasonal rhythm where the earlier invigorating gales give way to calmer currents. This evolution not only enhances the island's scenic vistas but also enriches the experience of those wandering its beautiful terrain.

Average April Wind Speed in Tsushima

The chart displays monthly wind speed patterns in Tsushima, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.93.03.0 m/s2.52.11.62.31.72.22.22.5
Data source: Tsushima April wind data, generated using information from the Copernicus Climate Change Service.

How April Weather in Tsushima Compares to Other Months

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

April typically offers a much warmer climate compared to January, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 29°C (84°F) and an average temperature of 14°C (58°F). In contrast, January temperatures are cooler, with a minimum of -5°C (23°F), a maximum of 18°C (64°F), and an average of only 5°C (41°F). While April sees considerably more precipitation at 163 mm (6.4 in) over 10 days, January has a much lower total of 52 mm (2.0 in) across just 7 days. Additionally, January experiences slightly higher humidity at 82% compared to April's 76%. For more detailed insights, check Tsushima weather in January.

April and February present quite distinct weather patterns. In April, temperatures range from a chilly minimum of -1°C (31°F) to a warm maximum of 29°C (84°F), with an average of 14°C (58°F). The month also sees significant precipitation, with 163 mm (6.4 in) over approximately 10 days, and humidity averaging at 76%. In contrast, February tends to be colder, with temperatures dipping as low as -5°C (24°F) and peaking at 22°C (71°F), resulting in a much lower average of 6°C (42°F). Additionally, February has less rainfall, totaling 59 mm (2.3 in) over about 6 days, accompanied by slightly higher humidity at 79%. For more detailed weather insights, you can check Tsushima weather in February.

April's weather shows a notable increase in average temperatures compared to March, rising from a comfortable 10°C (50°F) to a milder 14°C (58°F). While both months feature similar minimum temperatures, April boasts a higher maximum of 29°C (84°F) compared to March's peak of 25°C (77°F). Precipitation levels slightly increase in April, with 163 mm (6.4 in) falling over 10 days, versus March's 151 mm (6.0 in) across 11 days. Humidity also rises marginally from 74% in March to 76% in April. For more detailed weather conditions, you can check Tsushima weather in March.

April and May showcase a notable shift in weather patterns as spring progresses. In April, temperatures range from a chilly minimum of -1°C (31°F) to a comfortable maximum of 29°C (84°F), with an average of 14°C (58°F). However, the month is marked by significant precipitation, totaling 163 mm (6.4 in) over 10 days and humidity averaging 76%. In contrast, May brings warmer temperatures, with a minimum of 5°C (42°F) and a higher average of 19°C (67°F), peaking at 32°C (90°F). Precipitation increases slightly to 196 mm (7.7 in) over 11 days, accompanied by higher humidity at 83%. This transition highlights the warming trend and the arrival of more pronounced spring weather. For more detailed information, you can check Tsushima weather in May.

April and June present quite a contrast in weather conditions. In April, temperatures range from a chilly low of -1°C (31°F) to a pleasant average of 14°C (58°F), with highs reaching up to 29°C (84°F). The month is characterized by considerable precipitation, totaling 163 mm (6.4 in) over about 10 days, and a humidity level of 76%.

In comparison, June sees a significant warming trend, with minimum temperatures starting at 12°C (54°F) and culminating in an average of 23°C (74°F) and a maximum of 33°C (91°F). This month is not only warmer but also wetter, with precipitation increasing to 196 mm (7.7 in) over 14 days and humidity rising to 87%.

For more detailed information about weather conditions during this month, you can visit Tsushima weather in June.

April and July present striking contrasts in weather conditions. April features a broader temperature range, with minimums dropping to -1°C (31°F) and maximums reaching up to 29°C (84°F), while the average hovers around a mild 14°C (58°F). In contrast, July enjoys consistently warmer temperatures, with lows of 20°C (67°F) and highs soaring to 38°C (101°F), averaging a balmy 27°C (81°F). Additionally, July experiences significantly higher precipitation, totaling 384 mm (15.1 in) over 23 rainy days, compared to April’s 163 mm (6.4 in) across just 10 days. This substantial difference in humidity reinforces the steamy atmosphere of July, which sits at 93%, compared to April's milder 76%. For more insight into July weather, check out Tsushima weather in July.

April and August present contrasting weather patterns, highlighting the transition from spring to summer. In April, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant average of 14°C (58°F), peaking at 29°C (84°F). The month experiences moderate precipitation, totaling 163 mm (6.4 in) over about 10 days, and maintains a humidity level of 76%. In contrast, August sees much warmer conditions with a minimum temperature of 19°C (67°F) and an average of 29°C (84°F), reaching maximums of a sweltering 38°C (100°F). The month is also wetter, recording 253 mm (10.0 in) of rain across 16 days, with humidity rising to 91%. For more details on August weather, visit Tsushima weather in August.

April and September present quite distinct weather patterns. In April, temperatures range from a chilly minimum of -1°C (31°F) to a pleasant average of 14°C (58°F), peaking at a warm 29°C (84°F). However, the month is also marked by considerable precipitation, totaling 163 mm (6.4 in) over about 10 days, with a humidity level of 76%. In contrast, September enjoys milder temperatures, starting from a minimum of 12°C (54°F) and averaging 25°C (76°F), with maximum temperatures reaching a sweltering 37°C (98°F). It also experiences higher rainfall, with 225 mm (8.9 in) spread across 16 days and increased humidity at 87%. For detailed insights, you can explore Tsushima weather in September.

April and October showcase distinct shifts in weather patterns. In April, temperatures range from a chilly minimum of -1°C (31°F) to a comfortable average of 14°C (58°F) and can peak at 29°C (84°F). However, April is relatively wet, with an average precipitation of 163 mm (6.4 in) over about 10 days and a humidity level of 76%. In contrast, October experiences milder minimum temperatures of 7°C (44°F) to an average of 19°C (66°F), with maximums reaching 32°C (90°F). This month is even wetter, with 246 mm (9.7 in) of rainfall spread over approximately 14 days and a higher humidity of 85%. For more detailed insights, check out Tsushima weather in October.

April and November present distinct weather patterns, reflecting the shifting seasons. In April, temperatures range from a chilly 1°C (31°F) at night to a warm 29°C (84°F) during the day, with an average of 14°C (58°F). This month sees significant rainfall, totaling 163 mm (6.4 in) over approximately 10 days, and humidity levels hover around 76%.

In contrast, November offers slightly milder temperatures, with a minimum of 1°C (33°F) and a maximum of 24°C (76°F), averaging 13°C (55°F). Rainfall is less frequent, accumulating to 61 mm (2.4 in) across just 5 days, and humidity is slightly higher at 83%. For more detailed information about the weather during this month, you can check Tsushima weather in November.

April and December present contrasting weather conditions. In April, temperatures range from a chilly low of -1°C (31°F) to a warm high of 29°C (84°F), with an average of 14°C (58°F). This month experiences significant precipitation, totaling 163 mm (6.4 in) over about 10 days, accompanied by a humidity level of 76%. In contrast, December tends to be cooler, with temperatures ranging from a minimum of -5°C (24°F) to a maximum of 20°C (68°F), averaging at 7°C (45°F). Precipitation in December is less intense, amounting to 68 mm (2.7 in) over 7 days, and the humidity rises slightly to 83%. For more detailed information on December weather, you can visit Tsushima weather in December.

Compare Tsushima's Climate with Cities Worldwide

Conclusion: What to Expect From April Weather in Tsushima

As April unfolds in Tsushima, it brings a refreshing contrast to the colder months that precede it, ushering in a vibrant awakening of weather. With temperatures gradually rising, the days become pleasantly warm, inviting outdoor activities amidst blossoming landscapes. The average temperature plays a significant role in shifting from winter’s chill to early spring warmth, while the increased humidity adds a touch of freshness to the air. Though the island experiences a considerable amount of precipitation during this month, the rain nourishes the environment, showcasing the beauty of nature in full bloom. This transitional period sets the stage for the delightful climate that follows in the coming months. For a more comprehensive understanding of what to expect throughout the year, visit Tsushima Climate.