Last updated: August 21, 2025
In January, Sado, Japan experiences a blend of chilly temperatures and frequent precipitation, creating a unique winter atmosphere. The maximum temperature reaches a mild 13°C (56°F), while the average hovers around 4°C (39°F), and the minimum can plummet to -5°C (24°F). This month sees an impressive 130 mm (5.1 in) of rainfall spread across 20 days, contributing to a notable humidity level of 88%. Whether you're exploring the island's stunning landscapes or enjoying cozy indoor activities, January in Sado offers a captivating mix of winter elements.
In January, Sado, Japan experiences a chill that sets the tone for the winter season, with temperatures ranging from a brisk -5°C (24°F) at night to a mild 13°C (56°F) during the day. The average temperature hovers around 4°C (39°F), making it one of the colder months of the year. As January transitions into February, the temperatures remain relatively stable, with only slight increases in the daytime highs and nighttime lows. This trend continues into March, where mild weather begins to emerge, signaling the slow approach of spring. The increasing warmth seen in later months highlights a significant shift from the winter chill, showcasing Sado’s dynamic climate as it gracefully moves from frost-covered landscapes to the blossoming beauty of spring.
In January, Sado, Japan, experiences a notable bout of precipitation, with a total of 130 mm (5.1 in) spread across 20 days. This month marks one of the peak periods for rainfall, setting the tone for the wetter months ahead. February follows closely with 105 mm (4.1 in), while the transition to spring in March brings a slight dip to 101 mm (4.0 in), as the landscape begins to shed its winter cloak. The consistent rainfall early in the year suggests that Sado is not only a muse for nature lovers but also embraces the nourishing abundance of winter and spring moisture. As the year progresses, rainfall generally fluctuates, with July and August showcasing the island's wettest months, making the preceding January seem modest by comparison. Overall, January's precipitation sets a rhythmic pattern for the seasons, emphasizing Sado's unique climatic character.
In January, Sado, Japan experiences a high humidity level of 88%, setting the tone for a winter marked by moisture-rich air. This trend slightly declines in February to 86%, but remains consistently elevated throughout the month. As the seasons transition into spring, humidity sees a gradual decrease, reaching 81% in March and dipping to 78% by April. Surprisingly, as May arrives, humidity climbs back to 81%, reestablishing the island's characteristic dampness before the summer months. June and July bring a surge in humidity, peaking at 92% in both months, highlighting the island's subtropical climate. As autumn rolls around, humidity gently declines, with September recording 89%, before stabilizing around 86% in December. This cyclical pattern emphasizes Sado's persistent high humidity, particularly prominent during the summer, creating a unique atmospheric backdrop throughout the year.
In January, Sado, Japan experiences a moderate UV Index of 3, indicating a safe level of sun exposure, with a burn time of about 30 minutes. As the month progresses into February, the UV Index rises slightly to 4, maintaining its moderate exposure category. This trend sets the stage for a noticeable increase as spring approaches, with March seeing a jump to 7, transitioning into high exposure, and a reduced burn time of 25 minutes. The trend intensifies further in April and May, where the UV Index peaks at 8 and 10 respectively, both classified as very high, demanding vigilant sun protection for just 15 minutes of exposure. June continues this pattern, reinforcing the need for caution. By July and August, Sado enters its highest risk period with an extreme UV Index of 11, where even brief sun exposure can be damaging, requiring protective measures within just 10 minutes. As the year winds down, the UV Index decreases to 9 in September, then drops back to moderate levels of 4 in November and 3 in December. This annual rhythm highlights the importance of awareness and protection against UV radiation throughout the changing seasons. For a detailed look at Sado’s UV Index, check out Sado UV Index.
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In January, Sado, Japan, enjoys a modest 145 hours of sunshine, marking the beginning of a gradual ascent towards the brighter months ahead. As winter gives way to spring, the island experiences a significant surge in sunlight, with February bringing 195 hours and March reaching 252 hours. By April, the days grow even sunnier, accumulating 282 hours, and peak at an impressive 310 hours in May. This trend continues through the summer, maintaining a robust presence of sunshine, with August basking in 317 hours. However, as autumn approaches, the sunlight begins to wane, tapering off to 263 hours in September and further declining to 179 hours in December. Overall, Sado's sunshine patterns reflect a captivating rhythm, transitioning from winter's chill to the bright embrace of summer, before gracefully retreating into the cooler months.
In Sado, Japan, January graces the landscape with a modest 22% chance of sunshine, making it one of the cloudier months of the year. As the seasons transition, the likelihood of sunny days gradually increases, peaking in the summer months. Interestingly, February sees a notable jump to 35%, hinting at a gradual retreat of winter’s chill. Following this pattern, March and April continue the upward trend, reaching 29% and 43%, respectively, which signals the approach of spring. The sunny disposition of Sado truly flourishes in the summer, with July offering the sunniest days at 48%. This evolving weather pattern suggests that while January may be gray, brighter days are just around the corner, inviting visitors to anticipate the warmth of spring and summer ahead.
In Sado, Japan, January brings a mere 9 hours of daylight, setting a tranquil, wintry scene as the year begins. However, as February rolls around, daylight starts to extend to 10 hours, hinting at the promise of spring. This upward trend continues into March, where residents enjoy 11 hours of sunlight, gradually brightening the days. By April and May, the daylight stretches to 13 and 14 hours respectively, welcoming the lush vibrancy of spring and early summer. The peak daylight hours are maintained through July before beginning a gentle decline in August, reflecting the transition toward autumn. September sees 12 hours of daylight, and the downward trend continues into October with 11 hours, followed closely by 10 hours in November. As December returns the daylight to 9 hours, Sado's yearly cycle of light encapsulates the ebb and flow of the seasons, inviting both reflection and renewal.
In Sado, Japan, the January wind sets the tone for the year with an average speed of 5.4 m/s (12 mph), a brisk start that hints at the seasonal shifts ahead. As winter gives way to the milder winds of early spring, February sees a slight uptick to 6.2 m/s (14 mph) before a notable decline in March, dropping to 3.8 m/s (9 mph). This trend of diminishing winds continues into April and May, where speeds hover around 3.7 m/s (8 mph) and 3.9 m/s (9 mph), reflecting the calm that often accompanies the arrival of spring. However, as summer approaches, wind speeds fall to their lowest in June and July at around 2.2 m/s (5 mph), creating a serene atmosphere. The winds gradually pick up again in the fall, with November reaching 5.0 m/s (11 mph) and December matching February's gusty heights at 6.2 m/s (14 mph). This cyclical pattern illustrates the dynamic relationship between the seasons and the winds that sweep across this picturesque island.
Weather in Sado varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sado, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, temperatures range from a chilly minimum of -5°C (24°F) to a milder maximum of 13°C (56°F), with an average temperature of around 4°C (39°F). This month experiences significant precipitation, totaling 130 mm (5.1 in) over about 20 days, contributing to a high humidity level of 88%. In contrast, February sees slightly warmer conditions, with minimum temperatures rising to -3°C (28°F) and maximums reaching 14°C (58°F), maintaining a similar average temperature of 4°C (40°F). Precipitation decreases to 105 mm (4.1 in) over 19 days, and humidity remains relatively high at 86%. For more details, check out Sado weather in February.
January weather is characterized by colder temperatures, with minimums dropping to -5°C (24°F) and averages around 4°C (39°F). The month experiences higher precipitation, totaling 130 mm (5.1 in) across about 20 days, along with a notable humidity level of 88%. In contrast, March brings a noticeable warming trend, with temperatures ranging from a minimum of 0°C (32°F) to an average of 8°C (46°F) and maxima reaching 18°C (64°F). Although March sees slightly less precipitation at 101 mm (4.0 in) over 16 days, the humidity decreases to 81%. For more details on March weather, you can visit Sado weather in March.
January and April showcase distinct weather patterns, with January experiencing much colder temperatures, ranging from a minimum of -5°C (24°F) to a maximum of 13°C (56°F) and an average of 4°C (39°F). In contrast, April brings a noticeable warmth, with temperatures ranging from a minimum of 3°C (37°F) to a maximum of 22°C (71°F) and an average of 11°C (52°F). Additionally, while January is characterized by higher precipitation of 130 mm (5.1 in) over 20 days, April sees slightly less rainfall at 113 mm (4.5 in) spread across 13 days. Humidity levels also decline from 88% in January to 78% in April, marking a shift towards a more comfortable spring climate. For more details, you can refer to Sado weather in April.
January and May present a striking contrast in weather conditions. In January, temperatures are considerably lower, with a minimum of -5°C (24°F) and an average of 4°C (39°F), while May enjoys a much warmer climate, ranging from a minimum of 7°C (45°F) to a maximum of 29°C (84°F). Precipitation is higher in January, with 130 mm (5.1 in) spread across 20 days compared to May's 90 mm (3.5 in) over just 12 days, indicating a drier month. Additionally, January's humidity at 88% creates a chilled, damp atmosphere, while May's lower humidity at 81% contributes to a more pleasant, spring-like feel. For a closer look at the May weather in Sado, visit Sado weather in May.
In January, the weather is characterized by colder temperatures, with a minimum of -5°C (24°F) and an average of 4°C (39°F), while the maximum reaches 13°C (56°F). Precipitation is frequent, with about 130 mm (5.1 in) falling over 20 days, accompanied by high humidity levels at 88%. In contrast, June brings much warmer weather, with temperatures ranging from a minimum of 13°C (56°F) to a comfortable average of 20°C (69°F) and a peak of 28°C (83°F). The month sees significantly less rainfall, totaling 92 mm (3.6 in) across only 9 days, while humidity remains consistent at 88%. For a detailed look at June weather in the area, you can visit Sado weather in June.
January and July present stark contrasts in weather. January typically features cold temperatures, with a minimum of -5°C (24°F) and an average of 4°C (39°F), making it a chilly month. In addition, it experiences significant precipitation of 130 mm (5.1 in) over 20 days, coupled with high humidity at 88%. In contrast, July boasts warm temperatures, ranging from a minimum of 20°C (68°F) to a sizzling maximum of 37°C (99°F), with an average of 25°C (78°F). While it has higher precipitation at 256 mm (10.1 in), it occurs over fewer days (15), and the humidity remains elevated at 92%. These differences highlight the dramatic seasonal shift, making July a stark departure from the cold and damp conditions of January. For more information on the weather conditions in July, visit Sado weather in July.
January and August present stark contrasts in weather patterns. In January, temperatures are notably cold, with a minimum of -5°C (24°F) and an average of 4°C (39°F), while precipitation averages around 130 mm (5.1 in) over 20 days and the humidity is quite high at 88%. In contrast, August boasts a much warmer climate, featuring a minimum of 19°C (67°F) and an average of 27°C (81°F), with maximum temperatures soaring up to 37°C (100°F). Rainfall is also more substantial during this month, totaling 207 mm (8.2 in) across 14 days, accompanied by slightly higher humidity at 92%. For more details on August weather, you can visit Sado weather in August.
January and September exhibit stark contrasts in weather. In January, temperatures range from a chilly -5°C (24°F) to a mild 13°C (56°F), accompanied by significant precipitation of 130 mm (5.1 in) over 20 days, all while maintaining a high humidity level of 88%. Conversely, September boasts much warmer temperatures, with a minimum of 15°C (60°F) and a maximum reaching 36°C (98°F). This month also experiences slightly higher precipitation at 164 mm (6.5 in), but over fewer days—only 14. Humidity remains consistent at 89%, reflecting the month’s warm and often humid conditions. For more information, you can visit Sado weather in September.
January and October present stark contrasts in weather. In January, temperatures range from a chilly -5°C (24°F) to a maximum of 13°C (56°F), contributing to a wintery atmosphere with an average temperature of 4°C (39°F). The month is also characterized by significant precipitation, totaling 130 mm (5.1 in) over 20 days, and high humidity at 88%.
In comparison, October enjoys milder weather with a minimum temperature of 11°C (51°F) and highs reaching 28°C (82°F), averaging around 18°C (65°F). Although precipitation is slightly higher at 147 mm (5.8 in), it occurs over fewer days (13 days), resulting in a more pleasant overall experience. The humidity remains relatively stable at 87%. For more details, check out Sado weather in October.
January and November present contrasting weather conditions. In January, temperatures are notably lower, with a minimum of -5°C (24°F) and an average of 4°C (39°F), leading to frequent chilly days. In comparison, November enjoys milder temperatures, ranging from a minimum of 3°C (38°F) to a maximum of 21°C (71°F), with an average of 12°C (54°F). Precipitation is fairly consistent between the two months, with January receiving 130 mm (5.1 in) over 20 days, while November records slightly less at 115 mm (4.5 in) across 15 days. Additionally, January’s humidity is slightly higher at 88%, compared to November’s 85%. For more detailed insight, check out Sado weather in November.
In January, the temperatures range from a minimum of -5°C (24°F) to a maximum of 13°C (56°F), resulting in an average of 4°C (39°F), which is colder compared to December, where the temperatures are milder, with a minimum of -1°C (30°F) and a maximum of 17°C (64°F), averaging 7°C (44°F). Additionally, January experiences 130 mm (5.1 in) of precipitation over 20 days, while December sees higher precipitation levels at 179 mm (7.1 in) across 25 days. The humidity is slightly higher in January at 88%, compared to December's 86%. For more details, you can check Sado weather in December.
January in Sado is characterized by its chilly temperatures and frequent precipitation, marking a notable shift from the milder conditions of the preceding months. With an average temperature hovering around 4°C, winter's grip is firmly felt, especially with nighttime lows dipping to -5°C. The combination of high humidity levels—averaging 88%—and nearly 20 days of rainfall adds to the overall dampness of the season, creating a stark contrast to the warmer, drier months that precede and follow. For those planning a visit, Sado's January weather offers a unique, wintry experience that immerses you in the island's serene beauty. For more on what to expect throughout the year, explore Sado Climate.