Last updated: August 21, 2025
In March, Karatsu, Japan experiences a delightful transition as temperatures begin to rise, reaching a maximum of 20°C (68°F) and settling at an average of 12°C (53°F), with a comfortable minimum of 5°C (41°F). The month brings a fair amount of rain, with precipitation totaling 136 mm (5.4 in) over 11 days, contributing to the region's lush scenery. With a relative humidity of 71%, visitors can expect a refreshing coastal climate that invigorates the senses while exploring the beauty of this charming city.
In Karatsu, Japan, March ushers in the first signs of spring, marked by a noticeable increase in temperatures. The month begins with a minimum temperature of 5°C (41°F), rising to an average of 12°C (53°F) and peaking at a comfortable 20°C (68°F). This gradual warming trend from the cooler winter months of January and February not only invites the blossoming of cherry blossoms but also encourages outdoor activities. As the days grow longer and milder, March sets a hopeful tone for the warm months ahead, making it an ideal time to explore the vibrant landscapes and cultural richness of Karatsu.
In March, Karatsu experiences a significant uptick in precipitation, receiving 136 mm (5.4 in) of rain over 11 days. This marks a noticeable increase from the preceding months, showcasing a shift as spring approaches. Comparatively, both January and February recorded lower totals of 69 mm and 84 mm respectively, with precipitation days remaining fairly consistent. March sets the stage for a wetter season, as it transitions into the more rain-intensive months that follow. As the landscape awakens from winter, these spring showers help nourish the region's blooming flora, while also hinting at the escalating downpours characteristic of the upcoming summer months.
In March, Karatsu, Japan, experiences a moderate humidity level of 71%, providing a brief respite as the seasons transition. Following the higher humidity of February, March's levels hint at an approaching spring, although they begin to rise again as the city gears up for the traditionally more humid months ahead. Notably, humidity levels surge significantly from April onward, peaking in the sweltering summer months of July and August, where they reach a staggering 97% and 94%, respectively. This upward trend from March sets the stage for the muggy days of late spring and summer, making early spring a perfect time to enjoy the milder, yet still comfortably humid, climate before the heat intensifies.
In March, the UV Index in Karatsu, Japan reaches a striking 8, categorizing the sunlight as very high and significantly elevating the risk of harm from unprotected sun exposure. This sharp increase from February's 6—which was already high—indicates the onset of warmer days, requiring careful attention to sun safety. With a burn time of just 15 minutes, residents and visitors alike should consider protective measures such as sunscreen, hats, and sunglasses to prevent harmful effects. As spring unfolds, the trend of rising UV levels continues into April, reaching an even higher index of 10. To stay informed about the UV levels and plan your outdoor activities safely, check out Karatsu UV Index.
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March heralds the arrival of brighter days in Karatsu, Japan, with an impressive 262 hours of sunshine marking a steady upward trend. Following the winter months, where January recorded only 178 hours, February began the transition with 230 hours of sunlight. As spring approaches, the increase in daylight not only brightens the landscape but also invigorates the local culture and activities. This surge continues into April, hitting 281 hours, and peaks in May with 293 hours, showcasing the region's vibrant shift from winter’s gloom to the warm embrace of spring. The progression suggests that as the year unfolds, residents can anticipate even more sunlight in the months ahead, peaking in the summer with 305 hours in August. March truly is a turning point, setting the stage for the splendid sunny days that follow.
In Karatsu, Japan, March offers a somewhat moderate chance of sunshine, with 37% likelihood of clear skies, closely mirroring January's 32% and slightly trailing behind February's 44%. This month, as spring begins to unfold, typically sees a gradual increase in sunny days when compared to the winter months, yet it remains lower than the sunnier April and November. Overall, the trend showcases a promising shift towards brighter weather as the year progresses, invigorating the anticipation of outdoor activities and blooming landscapes as winter gives way to spring.
As March arrives in Karatsu, Japan, the lingering chill of winter begins to fade, bringing with it a noticeable increase in daylight. With 11 hours of daylight, March marks the start of longer days, setting the stage for spring. This uptick continues into April and May, where daylight reaches a delightful 13 hours. As the warmth of summer approaches, daylight peaks at 14 hours in June and July, before gradually tapering off in the fall months. This rhythmic pattern of illumination reflects the natural progression of the seasons, inviting residents and visitors alike to enjoy the beauty of longer days and the blossoming landscape.
As March unfolds in Karatsu, Japan, the winds begin to shift, marking a transition from the brisk winter months. Having maintained an average wind speed of 4.8 m/s (11 mph) in both January and February, March experiences a slight decrease to 4.1 m/s (9 mph), hinting at the gentle approach of spring. This trend continues into April, where the winds settle further at 4.0 m/s (9 mph), suggesting a gradual lull as nature awakens. The pattern indicates that as the temperatures rise and the flowers start to bloom, the winds mellow out, leading into the warmer months with the average speed dropping to 3.7 m/s (8 mph) by May. The serene breezes of March offer a refreshing reprieve, blending the remnants of winter with the budding vitality of spring.
Weather in Karatsu varies notably across the year, with each month offering distinct climate conditions. This page compares March’s weather to other months in Karatsu, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather of March and January, March generally offers milder temperatures with a minimum of 5°C (41°F) compared to January's chillier lows of -1°C (31°F). The average temperature in March reaches 12°C (53°F), while January sees a cooler average of 8°C (46°F), though both months can experience high temperatures up to 20°C (68°F) and 18°C (64°F) respectively. Rainfall is quite pronounced in March, with 136 mm (5.4 in) over 11 days, which is significantly more than January's 69 mm (2.7 in) over 9 days. Humidity levels remain similar in both months, hovering around 71% in March and slightly higher at 73% in January. For more detailed information, check out Karatsu weather in January.
In comparing the weather between February and March, it is evident that March experiences a more significant warming trend, with average temperatures rising from 8°C (47°F) in February to 12°C (53°F) in March. The minimum temperature also sees an increase, going from 0°C (31°F) to 5°C (41°F), while the maximum temperature remains similar, peaking at 20°C (68°F) in March compared to 19°C (67°F) in February. Additionally, March brings a notable increase in precipitation, measuring 136 mm (5.4 in) over 11 days, compared to 84 mm (3.3 in) during the same number of days in February. Humidity levels are slightly higher in March at 71%, compared to 69% in February. For a closer look at February’s weather specifics, you can visit Karatsu weather in February.
March and April weather present a notable shift in temperature and humidity. In March, temperatures range from a minimum of 5°C (41°F) to a maximum of 20°C (68°F), with an average of 12°C (53°F). The month experiences significant rainfall, totaling 136 mm (5.4 in) over 11 days, accompanied by a humidity level of 71%. In contrast, April sees a rise in temperatures, with a minimum of 7°C (45°F) and a maximum of 24°C (75°F), leading to a comfortable average of 15°C (59°F). Precipitation decreases slightly to 115 mm (4.5 in) over 9 days, while humidity increases to 79%. This transition highlights the warming trend as spring takes hold. For more detailed insights into April weather, you can check Karatsu weather in April.
The weather in March and May shows a notable transition in temperature and humidity. In March, temperatures range from a minimum of 5°C (41°F) to a maximum of 20°C (68°F), with an average of 12°C (53°F). During this month, precipitation is significant, totaling 136 mm (5.4 in) over about 11 days, contributing to a relatively high humidity level of 71%.
In contrast, May brings warmer conditions, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 27°C (80°F), averaging 19°C (67°F). Although precipitation increases slightly to 153 mm (6.0 in) over the same number of days, the humidity rises to 87%, making the air feel considerably more humid. This change highlights the shift from the cool, damp early spring to the warmer, more humid late spring. For more information on May's weather, check out Karatsu weather in May.
In March, the weather tends to be cooler, with average temperatures ranging from a minimum of 5°C (41°F) to a maximum of 20°C (68°F). The month sees moderate rainfall, accumulating to about 136 mm (5.4 in) over approximately 11 days, with a humidity level of 71%. In contrast, June experiences significantly warmer conditions, with temperatures fluctuating between a minimum of 17°C (63°F) and a maximum of 29°C (84°F). The precipitation increases to 191 mm (7.5 in) over about 13 days, and the humidity rises to 91%. This shift from March to June indicates a transition from cool and relatively dry weather to warm and humid conditions. For more detailed insights, check out Karatsu weather in June.
March and July present strikingly different weather conditions. In March, temperatures range from a minimum of 5°C (41°F) to a pleasant average of 12°C (53°F), peaking at 20°C (68°F). The month is characterized by a moderate amount of precipitation, totaling 136 mm (5.4 in) across 11 rainy days, accompanied by a humidity level of 71%. In contrast, July experiences much warmer temperatures with a minimum of 20°C (68°F) and an average of 26°C (79°F), reaching a high of 33°C (91°F). However, July also brings increased rainfall, with 323 mm (12.7 in) over 18 days and a significantly higher humidity of 97%. For more detailed insights on July weather, visit Karatsu weather in July.
In March, temperatures range from a cool minimum of 5°C (41°F) to a pleasant average of 12°C (53°F), with highs reaching up to 20°C (68°F). The month sees around 136 mm (5.4 in) of precipitation over 11 days and experiences a moderate humidity level of 71%. In contrast, August brings significantly warmer weather, with minimum temperatures starting at 21°C (70°F) and averaging 28°C (83°F), peaking at a hot 33°C (92°F). This month is wetter, averaging 266 mm (10.5 in) of rain over 13 days, combined with higher humidity at 94%. For more details on August weather, you can visit Karatsu weather in August.
March and September present stark contrasts in weather. In March, temperatures range from a chilly minimum of 5°C (41°F) to a mild maximum of 20°C (68°F), with an average of about 12°C (53°F). The month is relatively wet, receiving 136 mm (5.4 in) of precipitation over 11 days, paired with a humidity level of 71%. In comparison, September enjoys warmer temperatures, with a minimum of 19°C (66°F) and a maximum of 32°C (91°F), resulting in an average of 25°C (77°F). However, it also sees more rain, accumulating 210 mm (8.3 in) over 16 days, alongside a higher humidity of 84%. For more on September weather specifics, check out Karatsu weather in September.
March and October display distinct differences in weather patterns. In March, temperatures range from a chilly minimum of 5°C (41°F) to a more moderate maximum of 20°C (68°F), with an average temperature of 12°C (53°F). The month experiences significant rainfall, totaling 136 mm (5.4 in) across 11 rainy days, coupled with a humidity level of 71%. In contrast, October boasts warmer temperatures, with a minimum of 13°C (56°F) and a maximum reaching 29°C (84°F), resulting in an average temperature of 20°C (69°F). Precipitation is slightly lower at 112 mm (4.4 in) over 10 days, and humidity rises to 79%. For more specific details about October weather, check out Karatsu weather in October.
In March, temperatures start to gradually rise, with a minimum of 5°C (41°F) and an average of 12°C (53°F), reaching a maximum of 20°C (68°F). The month is relatively wet, with 136 mm (5.4 in) of precipitation spread over 11 days, and the humidity averages around 71%. In contrast, November experiences slightly warmer temperatures, ranging from a minimum of 7°C (45°F) to an average of 15°C (59°F) and a maximum of 23°C (74°F). Furthermore, November is considerably drier, with only 53 mm (2.1 in) of precipitation across 7 days and a higher humidity level of 75%. For more detailed information about the weather in November, you can check Karatsu weather in November.
March and December weather exhibit distinct differences in temperature and precipitation. In March, the minimum temperature is slightly higher at 5°C (41°F) compared to December's 1°C (35°F), with an average of 12°C (53°F) and a maximum of 20°C (68°F). December sees a maximum temperature similar to March at 21°C (71°F). Precipitation levels also vary, with March experiencing 136 mm (5.4 in) of rain over 11 days, while December has less rainfall at 81 mm (3.2 in) over 9 days. Humidity remains comparable, with March at 71% and December at 72%. For more detailed information about December weather, you can visit Karatsu weather in December.
As March unfolds in Karatsu, the weather ushers in a transition from the chill of winter to the warmth of spring. With temperatures averaging a comfortable 12°C, March experiences a delightful mix of milder days and cooler nights, offering a refreshing change from the colder months. While precipitation occurs on about 11 days, bringing a total of 136 mm, the increase in humidity at 71% hints at the impending vibrancy of nature. Unveiling a blooming landscape, March sets the stage perfectly for the beauty of spring that lies ahead. For further insights into how Karatsu's climate evolves throughout the year, be sure to explore Karatsu Climate.