June Weather in Tsushima, Japan

Last updated: August 21, 2025

In June in Tsushima, Japan, the weather exhibits a warm and humid character, with maximum temperatures soaring to 33°C (91°F) and an average of 23°C (74°F). The month sees a notable temperature range, dipping to a minimum of 12°C (54°F). Rainfall is frequent, with a total precipitation of 196 mm (7.7 in) over approximately 14 days, contributing to a high humidity level of 87%. This combination of warmth and moisture creates a lush environment, characteristic of the early summer season in Tsushima, making it an intriguing time to experience the island's vibrant nature and cultural activities.

June Temperature in Tsushima

In June, Tsushima, Japan, ushers in the warmth of summer with temperatures that reflect a significant rise compared to the cooler months. The minimum temperature settles at a comfortable 12°C (54°F), while the average climbs to 23°C (74°F), peaking at a sizzling 33°C (91°F). This transition from May's mild warmth to June’s heat marks a noteworthy shift, highlighting the island's rapid evolution into summer. With such a pleasant range, this month is perfect for outdoor adventures, inviting visitors to explore Tsushima’s stunning landscapes under mostly sunny skies, as the balmy climate creates an appealing backdrop for various activities.

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

The chart illustrates June 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, 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).
JanFebMarAprMayJunJulAugSepOctNovDec414250586773808476665545
Data source: Temperature data for Tsushima 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 Tsushima

June in Tsushima, Japan, marks a significant peak in precipitation, mirroring May's total with 196 mm (7.7 in) of rain, but it does so over a more extensive duration of 14 days. This indicates a shift towards wetter conditions as the island transitions into the summer months. As the rainy season progresses, the days grow increasingly damp, setting the stage for July's dramatic surge to 384 mm (15.1 in) over 23 days. This trend illustrates a clear escalation in rainfall, with June acting as a bridge between the moderate showers of spring and the intense downpours that characterize the peak of summer, highlighting Tsushima's dynamic climate.

June Precipitation Trends in Tsushima

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

In June, Tsushima, Japan experiences a notable increase in humidity, soaring to 87%, marking the onset of the summer season. This rise follows the relatively moderate humidity of 83% in May, hinting at the changing weather patterns as the island transitions into the warmer months. As July approaches, anticipation builds for even higher levels of humidity, which peak at a steamy 93%. This upward trend is characteristic of the coastal climate, where the air becomes increasingly humid from spring through summer, creating a lush, vibrant atmosphere. With humidity levels consistently hovering in the higher ranges, Tsushima showcases a unique blend of maritime influence and seasonal variation that defines its climate throughout the year.

June Average Humidity in Tsushima

This chart illustrates the average monthly humidity levels in Tsushima, 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 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 June generated using information from the Copernicus Climate Change Service.

June UV Index in Tsushima

In June, Tsushima, Japan, experiences an extreme UV Index of 11, mirroring the levels seen in May and July. This consistent peak emphasizes the need for vigilance against sun exposure, as the recommended burn time drops to a mere 10 minutes. Following the trend from earlier months, where the UV Index escalated from a moderate 4 in January to a high of 11 by May, July and August also maintain this extreme classification. Visitors and residents alike should take precautions during this time and stay informed about the UV levels through resources like Tsushima UV Index. As the summer months approach, being proactive about sun safety is essential to enjoying the beautiful sun-drenched days in Tsushima.

Maximum UV Index Levels in Tsushima for June

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

As June unfolds in Tsushima, Japan, residents bask in an impressive 270 hours of sunshine, marking a slight dip from the sunny highs of May. This month’s vibrant rays continue a positive trend established in the spring, where sunshine steadily increased from 185 hours in January to a peak of 290 hours in May. Though June's hours may taper off slightly, they still create a delightful backdrop for summer adventures. Following June, the sun shines a bit less in July and August, with 256 and 300 hours respectively, suggesting that while June is a transitional month, it remains an essential part of the sunny saga that characterizes Tsushima's year.

Monthly Sunshine Duration in Tsushima: June Highlighted

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

Chance of Sun in Tsushima During June

As summer approaches, Tsushima, Japan, experiences a notable decline in sunny weather, with June boasting only a 23% chance of sunshine. This marks a significant drop from the sunnier months of January and February, both at 50%, and reflects a broader trend of diminishing sunlight as spring turns to summer. In fact, May sees a mere 26% likelihood, foreshadowing the overcast conditions that often characterize the island in early summer. This pattern suggests that while the landscapes may bloom, travelers should be prepared for a higher chance of cloudy skies and rain as they plan their June adventures on this beautiful island.

Percentage of Sunny Days in June in Tsushima

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

Daylight Hours in Tsushima in June

June in Tsushima, Japan, marks a delightful transition as daylight stretches to 14 hours, consistent with the preceding months of May and July. This extended illumination signals the height of spring, encouraging outdoor activities and the enjoyment of vibrant natural scenery. Following a steady increase from 10 hours in January to 14 hours in both June and July, it’s clear that the days are growing longer, fostering a sense of warmth and vitality. As summer approaches, the slight decrease to 13 hours in August reminds us that the rhythm of daylight is ever-changing, guiding residents and visitors alike through the vivid tapestry of seasons in this picturesque locale.

Average Daylight Hours in Tsushima for June

The chart illustrates the variation in daylight duration in Tsushima throughout the year, with June 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.

June Winds in Tsushima

In June, Tsushima, Japan, experiences a gentle lull in wind speed, averaging 2.1 m/s (5 mph), the lowest of the year and a noticeable decline from the pre-summer months. This tranquil breeze contrasts with the slightly stronger currents felt in the spring, which reached 3.0 m/s (7 mph) in March and April. As summer approaches, the winds continue to soften, reaching a minimum in July with 1.6 m/s (4 mph), adding to the island's serene atmosphere. Interestingly, while May witnessed a brief uptick at 2.5 m/s (6 mph), the overall trend reveals a calming shift in the wind patterns that invites outdoor exploration amid the lush landscape—a perfect setup for enjoying the beauty of Tsushima's early summer.

Average June Wind Speed in Tsushima

The chart displays monthly wind speed patterns in Tsushima, 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.
JanFebMarAprMayJunJulAugSepOctNovDec2.62.93.03.02.52.1 m/s1.62.31.72.22.22.5
Data source: Tsushima June wind data, generated using information from the Copernicus Climate Change Service.

How June 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 June’s weather to other months in Tsushima, focusing on differences in temperature, rainfall, humidity, and UV levels.

June boasts a warm climate with temperatures ranging from a comfortable 12°C (54°F) at night to a sweltering high of 33°C (91°F) during the day, accompanied by considerable rainfall of 196 mm (7.7 in) spread over 14 days, resulting in a high humidity level of 87%. In stark contrast, January presents a much cooler atmosphere, with temperatures dropping significantly to a minimum of -5°C (23°F) and an average of just 5°C (41°F), peaking at 18°C (64°F). The precipitation is notably less at 52 mm (2.0 in) over only 7 days, and humidity is slightly lower at 82%. For more detailed climate insights, check Tsushima weather in January.

June and February present stark contrasts in weather conditions. June boasts a warmer average temperature of 23°C (74°F), with maximum highs reaching up to 33°C (91°F), while February is much cooler, averaging just 6°C (42°F), with lows dipping to -5°C (24°F). Additionally, June experiences significantly higher precipitation, with 196 mm (7.7 in) over approximately 14 days, compared to February's 59 mm (2.3 in) over 6 days. The humidity is also considerably higher in June at 87%, compared to 79% in February. For more specific details on February weather in Tsushima, you can check out this link: Tsushima weather in February.

June and March showcase a significant contrast in weather patterns. In June, temperatures range from a cool 12°C (54°F) to a warm 33°C (91°F), with an average of 23°C (74°F). This month experiences considerable rainfall, totaling 196 mm (7.7 in) over 14 days, combined with high humidity levels at 87%. In contrast, March features milder temperatures with a minimum of -1°C (30°F) and a maximum of 25°C (77°F), averaging around 10°C (50°F). Although March has lower precipitation at 151 mm (6.0 in) across 11 days, it has lower humidity levels at 74%. For more detailed insights, you can check Tsushima weather in March.

In comparing the weather between June and April, June is notably warmer, with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 33°C (91°F), while April features cooler temperatures, with a minimum of -1°C (31°F) to a maximum of 29°C (84°F). Additionally, June experiences higher humidity at 87% compared to April's 76%. Precipitation is also significant in both months, with June receiving 196 mm over 14 days, whereas April sees 163 mm across 10 days. For more details on April weather, you can visit Tsushima weather in April.

June generally presents warmer temperatures compared to May, with minimums rising from 5°C (42°F) to 12°C (54°F) and average temperatures increasing from 19°C (67°F) to 23°C (74°F). While both months experience similar maximum temperatures, June can peak at 33°C (91°F), which is slightly higher than May's maximum of 32°C (90°F). Interestingly, both months receive the same amount of precipitation at 196 mm (7.7 in), but June has it spread across 14 rainy days versus May's 11 days. Humidity also rises in June to 87%, compared to 83% in May. For more details on May weather, you can visit Tsushima weather in May.

June and July present a notable contrast in weather conditions. In June, temperatures range from a mild minimum of 12°C (54°F) to a maximum of 33°C (91°F), with an average of 23°C (74°F). This month experiences considerable rainfall, totaling 196 mm (7.7 in) over 14 days, coupled with high humidity at 87%. In comparison, July sees warmer weather, with temperatures climbing from a minimum of 20°C (67°F) to a scorching maximum of 38°C (101°F), averaging 27°C (81°F). Rainfall increases significantly to 384 mm (15.1 in) over 23 days, along with a slight rise in humidity to 93%. For more details about the weather in July, you can visit Tsushima weather in July.

In June, the weather is characterized by a mild range of temperatures, with minimums around 12°C (54°F) and maximums reaching up to 33°C (91°F), making for an overall average of 23°C (74°F). However, this month also sees considerable rainfall, averaging 196 mm (7.7 in) over approximately 14 wet days and a high humidity of 87%. In contrast, August experiences warmer conditions, with minimum temperatures rising to 19°C (67°F) and maximums soaring to 38°C (100°F), resulting in an average temperature of 29°C (84°F). Despite the higher warmth, August also brings more precipitation, totaling 253 mm (10.0 in) over 16 days, alongside slightly increased humidity at 91%. For those seeking detailed insights into the weather during this month, here's Tsushima weather in August.

In June, the weather features a minimum temperature of 12°C (54°F) and an average of 23°C (74°F), peaking at 33°C (91°F). This month typically sees about 196 mm (7.7 in) of precipitation over 14 days, with humidity levels remaining high at 87%. In contrast, September experiences slightly warmer conditions, with the average temperature rising to 25°C (76°F) and a maximum of 37°C (98°F). Precipitation increases to 225 mm (8.9 in) over 16 days, while humidity remains constant at 87%. For more detailed insights, you can check Tsushima weather in September.

June and October present contrasting weather patterns, each with its unique characteristics. In June, temperatures range from a mild 12°C (54°F) to a warm 33°C (91°F), with an average temperature of 23°C (74°F). However, this month also sees a significant amount of rainfall, with 196 mm (7.7 in) of precipitation over 14 days, contributing to a high humidity level of 87%.

In contrast, October experiences cooler temperatures, with a minimum of 7°C (44°F), an average of 19°C (66°F), and a maximum of 32°C (90°F). Although it remains warm at the upper end, October has higher overall precipitation at 246 mm (9.7 in) also spread across 14 rainy days and a slightly lower humidity of 85%. For a more detailed look at weather specifics in October, check out Tsushima weather in October.

In June, the weather features a much warmer climate with average temperatures reaching 23°C (74°F) and a high of 33°C (91°F). However, it also comes with significant rainfall, seeing around 196 mm (7.7 in) of precipitation over 14 days and an elevated humidity level of 87%. In contrast, November experiences cooler temperatures, with an average of 13°C (55°F) and a maximum of 24°C (76°F). The month is relatively dry, with only 61 mm (2.4 in) of precipitation occurring over just 5 days and a slightly lower humidity of 83%. For more details on November weather, you can visit Tsushima weather in November.

June and December present contrasting weather patterns. In June, temperatures range from a minimum of 12°C (54°F) to a maximum of 33°C (91°F), with an average of 23°C (74°F). The month is characterized by high humidity at 87% and significant precipitation, totaling 196 mm (7.7 in) over 14 days. In contrast, December experiences much cooler weather, with temperatures ranging from a low of -5°C (24°F) to a high of 20°C (68°F) and an average of 7°C (45°F). Precipitation in December is notably lower, with only 68 mm (2.7 in) falling over just 7 days, and humidity decreases slightly to 83%. For more information about the weather in December, visit Tsushima weather in December.

Compare Tsushima's Climate with Cities Worldwide

Conclusion: What to Expect From June Weather in Tsushima

In June, Tsushima experiences a shift into the warmth of summer, with notably higher temperatures compared to the cooler months preceding it. This month is characterized by an average temperature that rises significantly, while the humidity level peaks, creating a muggy atmosphere. Frequent rain, with an average of 14 days of precipitation, contributes to the overall wetness, leading to lush landscapes. If you're considering a trip, it's essential to prepare for both the heat and the likelihood of rain during this time. For a deeper look at what to expect throughout the year, check out Tsushima Climate.