June Weather in Shimonoseki, Japan

Last updated: August 21, 2025

In June, Shimonoseki, Japan experiences a delightful climate characterized by a maximum temperature reaching 27°C (81°F) and an average of 21°C (71°F), providing a comfortable atmosphere for outdoor activities. The month is marked by frequent rain, with 194 mm (7.7 in) of precipitation spread over 11 days, contributing to the lush greenery typical of the region. Visitors should be prepared for high humidity levels at 88%, creating a warm and tropical feel. This compelling weather sets the perfect backdrop for exploring the city's coastal charm and vibrant culture.

June Temperature in Shimonoseki

In June, Shimonoseki experiences a delightful transition into summer, with temperatures ranging from a minimum of 16°C (62°F) to a pleasant maximum of 27°C (81°F). The average temperature sits comfortably at 21°C (71°F), marking a significant increase from the cooler spring months. This warm up not only signifies the end of chilly days but also heralds longer, sunnier afternoons, ideal for exploring the scenic beauty of the area. As the city basks in increasing warmth, it sets the stage for vibrant outdoor activities and local festivities, making June an invigorating time to visit.

June Weather in Shimonoseki: Daily Temperature Highs, Lows, and Averages

The chart illustrates June temperature patterns in Shimonoseki, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Shimonoseki, June 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).
JanFebMarAprMayJunJulAugSepOctNovDec464652576571788176685950
Data source: Temperature data for Shimonoseki 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.

June Precipitation in Shimonoseki

In June, Shimonoseki experiences a notable increase in precipitation, receiving an impressive 194 mm (7.7 in) of rain over 11 days. This amount marks a peak in the spring season, setting the stage for the even heavier rainfall that follows in July. The transition from May to June is marked not only by a rise in total precipitation but also by a slight increase in the number of rainy days compared to previous months. As the landscape transforms under the weight of the rain, the region prepares for the lush greenery and vibrant flora that characterize the early summer months, highlighting a clear trend of escalating rainfall leading into the more intense summer season.

June Precipitation Trends in Shimonoseki

The chart displays monthly precipitation patterns in Shimonoseki, with values for each month alongside June’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how June’s conditions compare to those of other months. In Shimonoseki, June typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec84931651291411942952512261215489
Data source: Precipitation data for June generated using information from the Copernicus Climate Change Service.
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June Humidity in Shimonoseki

In Shimonoseki, Japan, June marks the peak of humidity, soaring to 88% as the region transitions into summer. This notable increase follows a steady rise from May's 84%, hinting at the arrival of warmer temperatures and moisture-laden air. The trend is further emphasized as the humidity continues to escalate, reaching a staggering 95% in July. Comparatively, the months leading up to June exhibit lower humidity levels, particularly in March with just 69%, showcasing a significant shift towards the sultry conditions typical of the Japanese summer. As the year progresses from this point, residents can expect not only muggy days but also a vibrant burst of life throughout the region.

June Average Humidity in Shimonoseki

This chart illustrates the average monthly humidity levels in Shimonoseki, with June’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In June, average humidity in Shimonoseki is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec76%72%69%75%84%88%95%93%84%79%76%75%
Data source: Humidity data for June generated using information from the Copernicus Climate Change Service.

June UV Index in Shimonoseki

As summer approaches, Shimonoseki, Japan, experiences a significant spike in UV intensity. By June, the UV Index reaches an extreme level of 11, matching the intensity noted in May. This means that sun exposure can lead to skin damage in as little as 10 minutes. The trend from earlier months shows a gradual increase, with a sharp rise from a moderate index of 4 in January to a striking 11 by June. Notably, the UV Index remains extreme through July and August, emphasizing the need for sun protection during these summer months. For more detailed information, visit Shimonoseki UV Index.

Maximum UV Index Levels in Shimonoseki for June

The chart shows the monthly maximum UV Index (UVI) for Shimonoseki in June, 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 June, the maximum UV index in Shimonoseki typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458101111121210753
Data source: Shimonoseki June 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.

June Sunshine in Shimonoseki

In Shimonoseki, Japan, June is a delightful month bathed in 295 hours of sunshine, signaling the peak of spring’s warmth as it gracefully transitions into summer. The trend of increasing daylight hours from January to May sets a vibrant tone for June, following a steady climb from 178 hours in January to a high of 303 hours in May. Although June experiences a slight dip, it still stands out with an impressive amount of sunshine, ensuring ample opportunities for outdoor adventures. As the summer months unfold, July and August promise even more radiant days, highlighting the region's charm during this sunny season. With each month showcasing a reassuring rhythm of bright skies, Shimonoseki invites both locals and visitors to savor the joys of summer.

Monthly Sunshine Duration in Shimonoseki: June Highlighted

The June sunshine duration represents the total number of hours Shimonoseki experiences direct sunlight during the month of June, excluding cloudy or obstructed periods. This chart compares the sunshine duration of June with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec178h229h262h280h303h295h286h305h256h253h235h215h
Data source: Shimonoseki June Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Shimonoseki During June

In June, Shimonoseki, Japan, experiences a 31% chance of sunny weather, a slight dip from the spring months, with May seeing a more optimistic 34%. While the onset of summer typically brings warmer temperatures, sunlight isn't guaranteed, as the likelihood of sunshine falls again in the following months of July and August, where it drops to 24% and 27% respectively. Interestingly, the city enjoys a resurgence of clearer skies in the autumn, with October boasting a remarkable 59% chance of sun, signaling a refreshing shift after the humid summer period. Overall, June remains a transitional month with moderate sun opportunities, hinting at the dance between varying seasonal patterns in Shimonoseki.

Percentage of Sunny Days in June in Shimonoseki

The chart illustrates the percentage of sunny days in Shimonoseki throughout the year, with June 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 Shimonoseki experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec30%44%37%46%34%31%24%27%31%59%46%38%
Data source: Shimonoseki June chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Shimonoseki in June

In Shimonoseki, Japan, the month of June marks a delightful peak in daylight duration, with 14 hours of sunshine invigorating the landscape. This increase in daylight has been a gradual ascent from the earlier months, where January and February offered just 10 hours each. As spring progressed, daylight hours surged to 13 in both April and May, setting the stage for June's vibrant glow. Following June, daylight begins to gently taper off through the summer months, settling back to 13 hours in August and then to 12 in September. This pattern not only reflects the changing seasons but also invites residents and visitors alike to indulge in the abundant sunlight, perfect for outdoor activities and exploration.

Average Daylight Hours in Shimonoseki for June

The chart illustrates the variation in daylight duration in Shimonoseki throughout the year, with June highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 8m10h 56m11h 58m13h 2m13h 55m14h 22m14h 9m13h 22m12h 21m11h 18m10h 22m9h 54m
Data source: Shimonoseki daylight hours, calculated by summing the hours between sunrise and sunset for each day.

June Winds in Shimonoseki

In Shimonoseki, Japan, the June winds bring a gentle breeze, with an average speed of 4.2 m/s (9 mph), marking a notable dip compared to the stronger gusts experienced earlier in the year. As spring transitions to summer, the wind speed gradually decreases from 5.6 m/s (12 mph) in both March and April, reaching its annual low by mid-year. This trend continues into July, where the winds slow further to 4.0 m/s (9 mph), before picking up slightly in August with a more moderate 4.5 m/s (10 mph). As the season progresses, the winds gradually regain their strength, hinting at a dynamic dance between warmth and cool currents that characterize Shimonoseki's summer climate.

Average June Wind Speed in Shimonoseki

The chart displays monthly wind speed patterns in Shimonoseki, with values for each month shown alongside June's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how June's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.56.75.65.65.04.2 m/s4.04.54.94.65.76.4
Data source: Shimonoseki June wind data, generated using information from the Copernicus Climate Change Service.

How June Weather in Shimonoseki Compares to Other Months

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

In June, the weather is notably warmer and more humid, with temperatures ranging from a minimum of 16°C (62°F) to a comfortable average of 21°C (71°F), peaking at 27°C (81°F). However, this month also experiences considerable rainfall, totaling 194 mm (7.7 in) over about 11 days, resulting in a high humidity level of 88%. In contrast, January brings much colder conditions, with temperatures ranging from a brisk -1°C (30°F) to an average of 8°C (46°F) and a maximum of 17°C (64°F). Precipitation is lighter in January, with 84 mm (3.3 in) spread over 12 days and lower humidity at 76%. For more detailed insights, you can check out Shimonoseki weather in January.

June and February present strikingly contrasting weather conditions. In June, temperatures range from a minimum of 16°C (62°F) to a maximum of 27°C (81°F), with an average of 21°C (71°F), accompanied by high humidity levels at 88%. Additionally, this month sees considerable rainfall, with 194 mm (7.7 in) over 11 days. In contrast, February experiences much cooler temperatures, with a minimum of -1°C (31°F) and a maximum of 18°C (65°F), averaging at 8°C (46°F). Precipitation is also lower, at 93 mm (3.6 in) over the same number of days, and humidity is reduced to 72%. For a more detailed look at February's weather, you can visit Shimonoseki weather in February.

In June, the weather is significantly warmer compared to March, with average temperatures ranging from a minimum of 16°C (62°F) to a maximum of 27°C (81°F). In contrast, March experiences cooler temperatures, with an average range between 4°C (39°F) and 18°C (64°F). While June sees a higher average precipitation of 194 mm (7.7 in) over 11 days, March has slightly lower rainfall at 165 mm (6.5 in) over 12 days. Also, June's humidity is notably higher at 88%, compared to March's more comfortable 69%. For a detailed look at March weather, explore Shimonoseki weather in March.

In comparing the weather between April and June, it's clear that June is significantly warmer, with average temperatures rising from April’s mild 14°C (58°F) to a more comfortable 21°C (71°F). Maximum temperatures can reach up to 27°C (81°F) in June, whereas April peaks at 22°C (71°F). However, this increase in warmth comes with a notable rise in humidity as well, which is 88% in June compared to 75% in April. Additionally, June experiences more precipitation, with 194 mm (7.7 in) over 11 days, compared to April's 129 mm (5.1 in) over 10 days. For more detailed insights into April’s weather, you can visit Shimonoseki weather in April.

In comparing the weather of June to that of May, we observe a noticeable increase in temperature and humidity. June boasts a minimum temperature of 16°C (62°F), an average of 21°C (71°F), and a maximum of 27°C (81°F), compared to May's minimum of 12°C (54°F), average of 18°C (65°F), and maximum of 25°C (77°F). Additionally, June experiences more precipitation, with 194 mm (7.7 in) over 11 days, versus May's 141 mm (5.5 in) over 10 days. The humidity also rises slightly in June to 88%, compared to 84% in May. For more details on the weather during May, visit Shimonoseki weather in May.

June and July present distinct weather patterns, with July generally being warmer and wetter. In June, temperatures range from a minimum of 16°C (62°F) to a maximum of 27°C (81°F), with an average of 21°C (71°F), accompanied by significant precipitation of 194 mm (7.7 in) over 11 days and humidity reaching 88%. In contrast, July sees warmer temperatures with lows around 20°C (69°F), averaging at 25°C (78°F) and peaking at 31°C (88°F). This month also experiences increased rainfall, totaling 295 mm (11.6 in) over 16 days, accompanied by even higher humidity levels of 95%. For more detailed insights, you can check Shimonoseki weather in July.

June and August present noticeably different weather patterns. In June, temperatures range from a minimum of 16°C (62°F) to a maximum of 27°C (81°F), with an average of 21°C (71°F) and an overall humid atmosphere at 88%. However, precipitation is quite significant, totaling 194 mm (7.7 in) over 11 rainy days.

In contrast, August is warmer, with temperatures ranging from a minimum of 21°C (69°F) to a high of 32°C (89°F) and an average of 27°C (81°F). The humidity increases slightly to 93%, and rainfall is heavier, accumulating to 251 mm (9.9 in) over 13 days. For more specifics about August weather in the region, check out Shimonoseki weather in August.

June and September showcase distinct weather patterns, with June experiencing a moderate average temperature of 21°C (71°F) and a maximum of 27°C (81°F), accompanied by significant rainfall of 194 mm (7.7 in) over 11 days and high humidity at 88%. In contrast, September offers slightly warmer temperatures, averaging 24°C (76°F) and reaching up to 32°C (89°F), though it also sees increased rainfall at 226 mm (8.9 in) across 12 days, with a slightly lower humidity of 84%. For more details on September weather, check out Shimonoseki weather in September.

June and October showcase similar maximum temperatures, both peaking at around 27°C (81°F) to 82°F; however, June tends to be slightly warmer overall with an average temperature of 21°C (71°F) compared to October's 20°C (68°F). While June is characterized by higher humidity levels at 88%, October presents a more moderate 79% humidity. Furthermore, June experiences significantly more precipitation, totaling 194 mm (7.7 in) over 11 days, compared to October's 121 mm (4.7 in) during the same number of days. For a detailed look at October weather, check out Shimonoseki weather in October.

June and November present distinctly different weather patterns. In June, temperatures range from a minimum of 16°C (62°F) to a maximum of 27°C (81°F), with an average of 21°C (71°F). This month tends to be quite humid, with a humidity level of 88% and significant precipitation of 194 mm (7.7 in) over approximately 11 days.

In contrast, November experiences cooler temperatures, averaging 15°C (59°F) with a minimum of 8°C (46°F) and a maximum of 23°C (74°F). The humidity decreases to 76%, and the rainfall is significantly lower at 54 mm (2.1 in) spread over about 8 days. For more details on November weather, you can check Shimonoseki weather in November.

In June, the weather is quite warm, with temperatures ranging from a minimum of 16°C (62°F) to a maximum of 27°C (81°F) and an average of 21°C (71°F). However, it also brings significant rainfall, averaging 194 mm (7.7 in) over approximately 11 days and maintaining a high humidity level of 88%. In contrast, December experiences much cooler temperatures, with a minimum of just 1°C (34°F) and an average of 10°C (50°F), while the maximum reaches about 20°C (68°F). Precipitation in December is lighter at 89 mm (3.5 in), occurring over 12 days, and the humidity is notably lower at 75%. For more detailed information, you can refer to Shimonoseki weather in December.

Compare Shimonoseki's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Shimonoseki

In June, Shimonoseki experiences a delightful transition into summer, marked by warm temperatures and heightened humidity, creating a lush atmosphere. Unlike the cooler months, this time of year sees daily temperatures soaring to a comfortable maximum of 27°C, inviting outdoor adventures. However, the increase in precipitation, with rain falling on about 11 days, contributes to the region's vibrant green landscapes. The air feels heavier with 88% humidity, which can be quite different from the drier months earlier in the year. Embracing the tropical charm of June, visitors can enjoy a blend of warmth and the refreshing scent of gentle rains, setting the stage for a unique and invigorating experience. For more details, check out Shimonoseki Climate.