Last updated: August 21, 2025
In January, Sasebo, Japan experiences a crisp winter climate characterized by a maximum temperature of 18°C (66°F) and an average of 8°C (46°F)*. The month can bring chilly lows, dipping to minimums around -2°C (29°F). Rainfall accumulates to 57 mm (2.2 in) over approximately seven days, contributing to the town's relative humidity of 73%. Whether you're exploring the scenic views or enjoying local cuisine, this dynamic weather sets the stage for a memorable January experience.
In Sasebo, Japan, January marks the heart of winter, showcasing a striking range of temperatures that highlights the seasonal transition. With minimums dipping to -2°C (29°F), residents and visitors can expect crisp, chilly mornings. The day brings a mild average of 8°C (46°F), comfortable enough for brisk walks or indoor explorations. As the month progresses, temperatures can rise to a pleasant maximum of 18°C (66°F), hinting at the approach of spring. This early glimpse of warmer days sets the tone for February, where the chill lingers but begins to wane, bringing increasing warmth in the following months. In Sasebo, January is a month of contrasts, bridging the cold grasp of winter with the budding promise of spring.
In January, Sasebo experiences a relatively modest precipitation total of 57 mm (2.2 in), falling on just 7 days of the month. This sets the stage for a gradual increase in rainfall as winter transitions into spring, with February seeing a notable rise to 79 mm (3.1 in) over 9 days. The trend continues into March and April, where precipitation spikes to 132 mm (5.2 in) and 114 mm (4.5 in), respectively. This signifies a shift toward a wetter season, highlighted by the more pronounced rainfall patterns from May through July, where monthly totals soar past 150 mm, peaking in July at a remarkable 361 mm (14.2 in). The frequency of rainy days also escalates, with July recording 18 days of rain. As summer yields to autumn, precipitation begins to taper off, bringing January's modest totals into relief, showcasing a dynamic and changing climate through the first half of the year in Sasebo.
In January, Sasebo, Japan, experiences a humidity level of 73%, setting the tone for the cool winter months. As the year progresses, a noticeable shift occurs: February sees a slight drop to 69%, but March rebounds to 71%. However, by April, the humidity begins to rise dramatically, culminating in the sultry summer months, with June peaking at 91% and July soaring to an impressive 97%. This trend of increasing humidity continues throughout the warmer months, only to taper off in September at 84%, and further decline into winter. The annual cycle illustrates Sasebo's transition from a cool, moderately humid January to a hot, oppressive summer, before returning to more comfortable levels as the year concludes.
In January, Sasebo, Japan, experiences a moderate UV Index of 4, indicating a burn time of approximately 30 minutes for unprotected skin. As the months progress, the UV Index rises significantly, peaking in the summer with extreme levels of 11 to 12 from May to August, where the recommended burn time drops to just 10 minutes. Notably, February marks a shift to a high exposure category with a UV Index of 6, reducing burn time to 25 minutes. This trend of increasing UV intensity continues through the spring months, with March and April showcasing very high levels, measuring 8 and 10 respectively. As we move into the autumn, UV levels begin to moderate again, returning to 4 in December, highlighting the seasonal fluctuations of sun exposure in Sasebo. For those interested in understanding UV trends and safety, more information is available at Sasebo UV Index.
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In Sasebo, Japan, January greets residents with 168 hours of sunshine, setting a tranquil tone for the year. As winter transitions into spring, the days slowly brighten, with February experiencing a significant leap to 227 hours. By March, the sunshine continues to flourish, reaching 264 hours, hinting at the promise of warmth ahead. The sunshine peaks in the following months, hitting a delightful 288 hours in May, before gradually tapering off during the summer, with July and August enjoying impressive totals of 287 and 306 hours respectively. As autumn approaches, there's a noticeable decline, with September and October recording 258 hours each, while November and December wrap up the year with 236 and 198 hours of sun. This overall trend illustrates a captivating rhythm of brightness, where the year's climax of sunshine invites residents to bask in the beauty of changing seasons.
In Sasebo, Japan, January enjoys a 34% chance of sunny weather, marking it as a typically overcast month as the year begins. While this figure is lower than the subsequent February, which has a 44% chance, it is noteworthy that March and April, with 36% and 40% respectively, offer a gradual rise in sunny days that foreshadows the more bright-filled months ahead. As spring approaches, this pattern reflects a generally upward trend in sunshine probability, with rainier summer months like June and July plummeting to just 25% and 20%. Interestingly, sunshine returns with vigor in October, soaring to an impressive 62%. This seasonal shift highlights Sasebo's diverse climate, where January serves as a gateway, hinting at clearer skies in the months to follow.
In Sasebo, Japan, January ushers in 10 hours of daylight, a stable start that remains unchanged in February. As spring approaches, daylight begins to extend gradually; by March, the sun graces the city for 11 hours, paving the way for longer days ahead. April and May further amplify this trend, showcasing 13 hours of sunlight, perfect for outdoor activities amidst the blossoming scenery. The peak arrives in June and July, with an impressive 14 hours of daylight, encouraging exploration and enjoyment of the summer. As the year progresses into autumn, daylight hours gently wane, dropping to 12 hours in September before settling back to 10 hours in November, and finally retreating to 9 hours in December. This rhythmic ebb and flow of daylight not only highlights the changing seasons but also enriches the daily experiences of Sasebo's residents and visitors alike.
In January, Sasebo experiences a consistent average wind speed of 4.0 m/s (9 mph), mirroring the calm breezes of February. As the seasons transition into spring, winds begin to soften, gradually decreasing to 3.7 m/s (8 mph) in March and further to 3.5 m/s (8 mph) by April, indicating the onset of warmer temperatures. The trend continues into May, where a gentle 3.2 m/s (7 mph) provides a serene atmosphere as summer approaches. Interestingly, from June onwards, the winds become noticeably lighter, dropping to 2.4 m/s (5 mph) in June and remaining around the 2.9 m/s (6 mph) mark through July and October. This gentler winter-to-summer ebb complements the vibrant cultural tapestry of the region, as the brisk January air gives way to the more tranquil summer months. However, as autumn sets in, the winds pick up slightly once more, reinforcing nature’s rhythm with an average of 3.4 m/s (8 mph) in November and a refreshing 3.8 m/s (9 mph) in December, completing the annual cycle.
Weather in Sasebo varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sasebo, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February in Sasebo present similar average temperatures, with January featuring a minimum of -2°C (29°F), an average of 8°C (46°F), and a maximum of 18°C (66°F), while February sees a slightly warmer minimum of -1°C (30°F) and a higher maximum of 21°C (70°F). Precipitation levels are also notable, with January receiving 57 mm (2.2 inches) over 7 days, compared to February's increase to 79 mm (3.1 inches) across 9 days. Humidity remains relatively consistent, at 73% in January and slightly lower at 69% in February. For more detailed insights into February's weather, you can explore Sasebo weather in February.
In January, the weather is characterized by a chilly start to the year, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 18°C (66°F) and an average temperature of around 8°C (46°F). Humidity levels are relatively high at 73%, and the month sees about 57 mm (2.2 in) of precipitation over approximately 7 days.
In contrast, March brings milder and more temperate weather, with minimum temperatures rising to 2°C (37°F) and maximums reaching 23°C (73°F), resulting in an average of 12°C (54°F). Despite the increase in temperatures, March experiences a significant rise in precipitation, totaling 132 mm (5.2 in) over 10 days, while humidity remains slightly lower at 71%. For more detailed information, you can check Sasebo weather in March.
The weather in January and April presents a striking contrast. January features cooler temperatures, with a minimum of -2°C (29°F) and an average of 8°C (46°F), while April sees a significant rise, with temperatures starting at a minimum of 6°C (42°F) and averaging 16°C (60°F). Additionally, April experiences higher maximum temperatures, reaching up to 27°C (82°F) compared to January's peak of 18°C (66°F). Precipitation also differs, with January receiving 57 mm (2.2 in) over 7 days, while April sees nearly double that amount at 114 mm (4.5 in) spread across 9 days. Humidity increases slightly from January's 73% to April's 79%, reflecting the shift towards a warmer, wetter spring. For more details on the April conditions, you can check Sasebo weather in April.
In January, the weather is considerably cooler, with temperatures ranging from a chilly -2°C (29°F) at night to a mild 18°C (66°F) during the day. The month sees an average of 57 mm (2.2 in) of precipitation over about 7 days, with a humidity level of 73%. In contrast, May warms up significantly, with temperatures starting at a minimum of 9°C (48°F) and peaking at a comfortable 28°C (83°F). Precipitation increases to 168 mm (6.6 in) over 11 days, and humidity rises to 87%. This shift in weather reflects the transition from the winter chill of January to the vibrant, wetter atmosphere of May, making the latter month quite different in terms of climate. For more detailed weather information, check out Sasebo weather in May.
January and June showcase a striking contrast in weather conditions. In January, temperatures range from a chilly minimum of -2°C (29°F) to a mild maximum of 18°C (66°F), with an average of 8°C (46°F). The month sees about 57 mm (2.2 in) of precipitation over approximately 7 days, accompanied by a humidity level of 73%. In contrast, June experiences significantly warmer temperatures, with a minimum of 16°C (61°F), an average of 23°C (74°F), and a maximum reaching 31°C (89°F). This month also brings more rainfall, totaling 200 mm (7.9 in) over around 12 days, with humidity increasing to 91%. For a detailed look at what to expect, visit Sasebo weather in June.
January and July display stark contrasts in weather conditions. In January, temperatures range from a chilly -2°C (29°F) at night to a mild 18°C (66°F) during the day, with an average of 8°C (46°F). The humidity sits at a comfortable 73%, and the month experiences about 57 mm (2.2 in) of precipitation over 7 days. In contrast, July brings a significant rise in temperatures, with nighttime lows of 19°C (66°F) and daytime highs soaring to 36°C (96°F), resulting in an average temperature of 27°C (80°F). This summer month is also much wetter, with 361 mm (14.2 in) of rain over 18 days and a high humidity of 97%. The dramatic difference in both temperature and precipitation illustrates the seasonal shifts typical of the region. For more detailed information, check out Sasebo weather in July.
The weather in January and August presents a stark contrast, reflecting the shift from winter to summer. In January, temperatures range from a chilly minimum of -2°C (29°F) to a comfortable maximum of 18°C (66°F), with an average of 8°C (46°F). This month experiences around 57 mm (2.2 in) of precipitation over 7 days and a humidity level of 73%. In contrast, August boasts significantly warmer conditions, with temperatures ranging from a minimum of 20°C (68°F) to a scorching maximum of 37°C (99°F) and an average of 28°C (83°F). The summer month sees much heavier rainfall, with 288 mm (11.3 in) of precipitation occurring over 15 days, accompanied by a high humidity of 94%. For more details, check out Sasebo weather in August.
The weather in January is notably cooler, with temperatures ranging from a minimum of -2°C (29°F) to a maximum of 18°C (66°F), and an average of 8°C (46°F). In contrast, September embraces warmth with temperatures between 17°C (63°F) and 34°C (94°F), averaging around 25°C (77°F). Additionally, January experiences less precipitation, totaling 57 mm (2.2 in) over 7 days, whereas September is much wetter, with 222 mm (8.7 in) across 15 days. Humidity levels also rise in September, reaching 84%, compared to January's 73%. For more detailed information about the weather in September, you can check Sasebo weather in September.
In January, the weather is considerably cooler, with average temperatures ranging from a minimum of -2°C (29°F) to a maximum of 18°C (66°F). The month sees around 57 mm (2.2 in) of precipitation over about seven days, accompanied by a humidity level of 73%. In contrast, October experiences warmer temperatures, with a minimum of 11°C (51°F) and an average maximum of 31°C (88°F). This month also has a higher precipitation rate of 109 mm (4.3 in) over nine days, and humidity increases slightly to 79%. For more details on October weather, you can check Sasebo weather in October.
In January, temperatures generally range from a low of -2°C (29°F) to a high of 18°C (66°F), with an average of 8°C (46°F). The month experiences about 57 mm (2.2 in) of precipitation over 7 days, accompanied by a humidity level of 73%. In contrast, November sees milder temperatures, with a minimum of 4°C (40°F), an average of 15°C (58°F), and a maximum of 25°C (77°F). Precipitation is slightly lower at 51 mm (2.0 in) over the same number of days, and humidity is marginally higher at 75%. For a more detailed look at November weather, you can visit Sasebo weather in November.
In comparing the weather between January and December, January tends to be slightly cooler, with average temperatures ranging from a minimum of -2°C (29°F) to a maximum of 18°C (66°F), while December shows a milder range with temperatures between 1°C (33°F) and 23°C (74°F). Precipitation levels are also noteworthy; January receives 57 mm (2.2 in) of rain over 7 days, while December has slightly more at 74 mm (2.9 in) over the same number of days. Humidity remains consistent, with January at 73% and December at 72%. For more insights on the December weather, you can check Sasebo weather in December.
January in Sasebo presents a unique contrast to the more temperate months of the year. With average temperatures hovering around a brisk 8°C, it marks the peak of winter, making it notably cooler than autumn or spring. Precipitation is relatively modest, but the 57 mm over seven days creates a refreshing yet crisp atmosphere, enhanced by humidity levels of 73%. These elements combine to offer a distinctly chilly experience, drawing visitors who appreciate the serene beauty of winter landscapes. For more insights and detailed information on the weather throughout the year, explore Sasebo Climate.