Last updated: August 21, 2025
In June, Karatsu, Japan, experiences a delightful blend of warm temperatures and lush greenery, with average highs reaching 29°C (84°F) and lows around 17°C (63°F). This month showcases an average temperature of 22°C (73°F), creating a comfortable atmosphere for visitors. However, rainfall is a significant aspect of this season, contributing 191 mm (7.5 in) of precipitation over 13 days, resulting in a humidity level that hovers around a remarkable 91%. This combination of warmth and moisture paints Karatsu in vibrant hues, making it an enchanting, albeit sometimes soggy, destination.
As June rolls into Karatsu, Japan, temperatures begin to climb, marking the transition into summer. With minimums averaging 17°C (63°F) and maximums reaching up to 29°C (84°F), the month's average temperature settles around 22°C (73°F), offering a comfortable warmth perfect for outdoor activities. This notable increase is a sharp contrast to the cooler spring months, where February sees a chill at 0°C (31°F). In June, locals and visitors alike can enjoy the vibrant landscape as the region comes alive, embracing longer days and softer breezes that hint at the sultry summer to come.
June marks a significant peak in precipitation for Karatsu, Japan, with an impressive 191 mm (7.5 in) falling over 13 days of the month. This jump continues the upward trend seen from the preceding months, where rainfall steadily rose from 69 mm in January to 153 mm in May. The onset of June heralds the transition into the more intense rainy season, leading right into July's even heavier average of 323 mm (12.7 in), a stark contrast to the relatively drier winter months. The increased number of wet days in June not only underscores the region's climatic shift but also sets the stage for the summer deluge ahead, showcasing Karatsu's dynamic weather patterns.
June marks a notable transition in Karatsu, Japan, as the humidity soars to an impressive 91%, setting the stage for the sweltering summer months ahead. This rise is part of a consistent upward trend observed from April through June, where humidity levels climb from 79% to 87% and peak at 91%. As the region shifts from the blossoming warmth of spring into the heat of summer, residents can expect a muggy atmosphere that intensifies in July, with humidity peaking at 97%. This pattern underscores the increasing embrace of moisture-laden air, compelling locals to adapt to the unmistakable shift in climate as summer arrives in full force.
In June, Karatsu, Japan, experiences an extreme UV Index of 11, mirroring the intense sun exposure seen in May. With a burn time of just 10 minutes, it's crucial for residents and visitors alike to take proper precautions when outdoors. This trend of high UV levels continues into July and August, where the index peaks at 12, underscoring the need for sun protection during the summer months. As the seasons transition, the UV Index gradually decreases in September, stabilizing at 11 before tapering off in the fall. To stay informed about sun safety and UV exposure, you can visit Karatsu UV Index.
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June in Karatsu, Japan, shines brightly with 282 hours of delightful sunshine, marking the continuation of a beautiful spring that transitions smoothly into summer. After the steady increase in sunlight from January's 178 hours to May's peak of 293 hours, June maintains a robust brightness, slightly dipping but still rivaling the sunnier months ahead. This vibrant month, nestled between the lush blooms of late spring and the hotter days of midsummer, offers a perfect balance for outdoor enthusiasts. The sunlight hours in June set the stage for July and August, which promise even more sun, making it an ideal time for visitors and locals alike to soak in the warmth and festivities that characterize this charming coastal town.
In June, Karatsu, Japan experiences a notable decline in sunshine, with the chance of clear skies dropping to 27%. This marks the beginning of a pattern where sunny days become increasingly elusive, particularly as the summer months approach. Following June, July reveals an even lower likelihood of sunshine at 21%, suggesting a transition into a season characterized by increased rain and humidity. Interestingly, this trend contrasts sharply with October, which boasts a remarkable 60% chance of sunny weather, highlighting the seasonal variability in Karatsu's climate. Despite June's lower odds for sunshine, the region's weather remains dynamic, offering its unique charm and beauty throughout the year.
As June arrives in Karatsu, Japan, the days stretch to an invigorating 14 hours of daylight, marking a significant increase from the 10 hours seen at the start of the year. This month stands out as a pivotal transition, establishing a clear upward trend in daylight that began in March and peaks during the height of summer. Following June, daylight remains abundant in July before gradually tapering off in August. This gradual rise and subsequent decline highlight the seasonal rhythm of the region, inviting outdoor activities and celebrating the longer days of summer.
As June settles into Karatsu, Japan, the gentle embrace of summer reflects in the city's wind patterns. The average wind speed dips to 2.7 m/s (6 mph), marking a notable decrease from the spring months. This softening breeze contrasts with the stronger, more dynamic winds of earlier months—4.8 m/s (11 mph) in January and February, tapering to 3.7 m/s (8 mph) by May. By June, the transition to milder conditions sets the stage for warmer days, with winds providing a refreshing but gentle touch. As summer progresses, karatsu experiences a slight rise again in the wind speeds during July and August, highlighting a delicate ebb and flow that characterizes its climate.
Weather in Karatsu varies notably across the year, with each month offering distinct climate conditions. This page compares June’s weather to other months in Karatsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
In June, the weather is typically much warmer and more humid compared to January. With temperatures ranging from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), June sees an average temperature of 22°C (73°F) along with significant rainfall, totaling 191 mm (7.5 in) over about 13 days. In contrast, January experiences cooler conditions, with temperatures ranging from a minimum of -1°C (31°F) to a maximum of 18°C (64°F), and an average temperature of 8°C (46°F). Precipitation is also lower in January, measured at 69 mm (2.7 in) over just 9 days, and the humidity is more moderate at 73%. For detailed information on January's weather, you can visit Karatsu weather in January.
In comparing the weather of June and February, a stark contrast is evident in temperature and humidity levels. June experiences mild to warm conditions with average temperatures reaching 22°C (73°F) and highs peaking at 29°C (84°F). In contrast, February remains quite chilly, with average temperatures around 8°C (47°F) and maximums only reaching 19°C (67°F). Additionally, June sees significantly higher humidity at 91%, while February's humidity is relatively lower at 69%. Precipitation in June is also more prevalent, totaling 191 mm (7.5 in) over 13 days compared to February's 84 mm (3.3 in) over 11 days. For a detailed look at February's climate, you can visit Karatsu weather in February.
In comparing the weather of June and March, it's evident that June is significantly warmer and more humid. With temperatures ranging from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), June averages at 22°C (73°F), while March offers a cooler experience with temperatures between 5°C (41°F) and 20°C (68°F), averaging only 12°C (53°F). Additionally, June sees a higher precipitation level of 191 mm (7.5 in) over 13 days, compared to March's 136 mm (5.4 in) over 11 days, making June generally wetter. The humidity also contrasts notably, with June's high humidity at 91% compared to March's 71%. For more specifics on March weather, you can check Karatsu weather in March.
When comparing the weather in June to that of April, there is a notable difference in both temperature and precipitation. June sees a warmer temperature range, with minimums of 17°C (63°F) and maximums reaching up to 29°C (84°F), averaging around 22°C (73°F). In contrast, April experiences much cooler conditions, with temperatures ranging from a minimum of 7°C (45°F) to a maximum of 24°C (75°F), and an average of just 15°C (59°F). Precipitation levels also differ significantly; June receives a higher amount of rainfall at 191 mm (7.5 in) over 13 days, while April has 115 mm (4.5 in) of rain over 9 days. Additionally, June's humidity is notably higher at 91%, compared to April's 79%. For more details on the weather in April, you can visit Karatsu weather in April.
In June, the weather becomes noticeably warmer with average temperatures ranging from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), compared to May, which sees lower temperatures with a minimum of 11°C (53°F) and a maximum of 27°C (80°F). June also experiences increased precipitation, totaling 191 mm (7.5 in) over 13 days, surpassing May's 153 mm (6.0 in) across 11 days. Additionally, humidity rises slightly in June to 91%, up from May's 87%, contributing to a more humid atmosphere. For a detailed look at the weather conditions in May, you can visit Karatsu weather in May.
June and July exhibit notable differences in weather patterns. June experiences a milder temperature range with a minimum of 17°C (63°F) and an average of 22°C (73°F), reaching a maximum of 29°C (84°F). However, it also faces significant precipitation, totaling 191 mm (7.5 in) over 13 wet days, accompanied by high humidity of 91%. In contrast, July sees a warmer climate, with minimum temperatures rising to 20°C (68°F), an average of 26°C (79°F), and peaks at 33°C (91°F). This month also brings increased precipitation, accumulating 323 mm (12.7 in) over 18 days, along with even higher humidity at 97%. For more specific details, you can explore Karatsu weather in July.
June and August both experience warm temperatures, but August is noticeably hotter, with average highs reaching 33°C (92°F) compared to June's maximum of 29°C (84°F). Additionally, July sees higher humidity levels, peaking at 94% in August, compared to 91% in June. Precipitation is also more significant in August, with 266 mm (10.5 in) of rain over 13 days compared to June’s 191 mm (7.5 in). For more detailed information, check out Karatsu weather in August.
In June, temperatures range from a mild 17°C (63°F) to a warm 29°C (84°F), with an average of 22°C (73°F). The month is characterized by high humidity at 91% and frequent rainfall, totaling 191 mm (7.5 in) over about 13 days. In contrast, September experiences slightly warmer temperatures, with a minimum of 19°C (66°F) and a maximum of 32°C (91°F), averaging 25°C (77°F). However, it also sees increased precipitation of 210 mm (8.3 in) spread over 16 days, and a lower humidity level of 84%. For more detailed insights into September weather, check Karatsu weather in September.
June and October present contrasting weather patterns, even though their maximum temperatures can be similar. In June, temperatures range from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), accompanied by high humidity of 91% and significant rainfall, totaling 191 mm (7.5 in) over 13 days. In contrast, October offers slightly cooler temperatures, with a minimum of 13°C (56°F) and an average of 20°C (69°F), yet it can still reach up to 29°C (84°F). This month experiences less rainfall, with only 112 mm (4.4 in) over about 10 days, and a lower humidity level of 79%. For more detailed information about October's weather, you can check Karatsu weather in October.
June and November present contrasting weather conditions. In June, temperatures range from a minimum of 17°C (63°F) to a maximum of 29°C (84°F), with an average of 22°C (73°F). The month is characterized by high humidity at 91% and significant rainfall, totaling 191 mm (7.5 in) over approximately 13 days. In stark contrast, November experiences cooler temperatures, with a minimum of 7°C (45°F), an average of 15°C (59°F), and a maximum of 23°C (74°F). Precipitation in November is much lower at 53 mm (2.1 in), falling over just 7 days, accompanied by reduced humidity at 75%. For more detailed insights, you can check Karatsu weather in November.
June and December exhibit strikingly different weather patterns. In June, temperatures range from a mild 17°C (63°F) to a warm 29°C (84°F), with an average of 22°C (73°F), accompanied by high humidity levels of 91%. The month is characterized by significant rainfall, receiving about 191 mm (7.5 in) across 13 rainy days. In contrast, December features much cooler temperatures, with a minimum of 1°C (35°F) and a maximum of 21°C (71°F); the average temperature drops to 10°C (50°F). Precipitation is lower at 81 mm (3.2 in) over just 9 days, and humidity is less oppressive at 72%. For a detailed view of the conditions you can expect in December, visit Karatsu weather in December.
As June unfolds in Karatsu, it heralds the transition into the warmer, more humid days of summer. This month stands out with its high humidity levels, creating a tropical atmosphere that feels markedly different from the drier conditions of previous months. With more frequent rainfall, the landscape transforms into a lush green, enhancing the area's natural beauty. Temperatures rise steadily, reaching a pleasant average, making June a time for outdoor exploration, despite the occasional showers. For those looking to understand how June fits into the overall climate patterns, take a closer look at Karatsu Climate.