January Weather in Wakayama, Japan

Last updated: August 21, 2025

In January, Wakayama, Japan, experiences a blend of chilly temperatures and moderate rainfall. With a maximum of 17°C (62°F) and a minimum dipping to -1°C (30°F), the average temperature hovers around 6°C (44°F). The month brings approximately 63 mm (2.5 in) of precipitation, spread over about 9 days, creating an invigorating winter atmosphere. The humidity levels peak at a notable 82%, adding to the crispness of the air. Whether you're exploring the scenic landscapes or indulging in local festivities, January in Wakayama offers a refreshing escape filled with unique experiences.

January Temperature in Wakayama

In Wakayama, Japan, January offers a crisp winter atmosphere, with temperatures ranging from a chilly -1°C (30°F) at night to a pleasant 17°C (62°F) during the day. The average temperature settles around 6°C (44°F), marking it as one of the cooler months of the year. As winter transitions into early spring, February follows closely, maintaining similar lows and inching up slightly in daily highs, suggesting a gradual warming trend. This incremental rise continues into March, when temperatures average 10°C (51°F) and max out at 20°C (68°F), hinting at the advent of spring warmth. The steady increase from winter's chill to spring's mildness reflects the overall climatic shift in Wakayama, making January a key month to experience the tranquil beauty of this coastal city during winter.

January Weather in Wakayama: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Wakayama, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Wakayama, January 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).
JanFebMarAprMayJunJulAugSepOctNovDec444451586672798377675748
Data source: Temperature data for Wakayama generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Wakayama

January in Wakayama, Japan, sees a moderate precipitation level of 63 mm (2.5 in) over approximately 9 days, setting the tone for a wetter winter season. As winter transitions into spring, February experiences a slight increase in rainfall to 76 mm (3.0 in), maintaining the same number of rainy days. However, the trend sharply escalates in the spring months; March brings a significant jump to 115 mm (4.5 in), while April and May continue this upward trajectory, reaching 128 mm (5.1 in) and 164 mm (6.5 in) respectively. The most drastic change occurs in the summer months, particularly in July, when precipitation skyrockets to 302 mm (11.9 in), underscoring the region's susceptibility to heavy rains during this time. The overall trend showcases a gradual increase in precipitation from January through July, followed by a decline as the year progresses, with November and December mirroring January's lighter rainfall patterns. This cyclical nature of precipitation in Wakayama not only shapes the local climate but also influences the region’s vibrant flora and agricultural practices throughout the year.

January Precipitation Trends in Wakayama

The chart displays monthly precipitation patterns in Wakayama, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Wakayama, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec63761151281641993021782032676376
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Wakayama

In Wakayama, Japan, January welcomes the new year with a notable humidity level of 82%, setting the tone for the months ahead. This atmospheric moisture gradually decreases in February to 79%, but soon rebounds in spring as March experiences a slight dip to 74% before rising again in April. The trend shifts dramatically as summer approaches, with humidity peaking in July at a striking 93%. Interestingly, the humidity persists at high levels through August, dropping gradually but remaining elevated at 87% in September. As autumn unfolds, the humidity levels stabilize around 83% in both November and December, creating a rich, humid environment that characterizes Wakayama's climate throughout the year.

January Average Humidity in Wakayama

This chart illustrates the average monthly humidity levels in Wakayama, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Wakayama 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 January generated using information from the Copernicus Climate Change Service.

January UV Index in Wakayama

In January, Wakayama experiences a moderate UV Index of 4, with a burn time of 30 minutes, setting the stage for a gradual increase in sunlight as the year progresses. As February rolls in, the UV Index rises slightly to 5, but the recommended burn time remains the same. A notable shift occurs in March, with the UV Index soaring to 8—marking the transition to very high levels—where your skin can begin to redden in just 15 minutes. This escalation continues into April and May, featuring extreme UV Index levels of 11 and an alarming burn time of only 10 minutes. The summer months maintain this extreme exposure, but a slight reprieve arrives in September with a very high UV Index of 10 and a burn time of 15 minutes. As the year winds down, the UV Index dips back to moderate levels in November and December, echoing its January beginnings. To learn more about monthly UV trends, check out Wakayama UV Index.

Maximum UV Index Levels in Wakayama for January

The chart shows the monthly maximum UV Index (UVI) for Wakayama in January, 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 January, the maximum UV index in Wakayama typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec458111111111110754
Data source: Wakayama January 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.

January Sunshine in Wakayama

In Wakayama, Japan, January brings a modest 185 hours of sunshine as the year begins, but the days quickly grow brighter with each passing month. Notably, February sees a substantial increase to 230 hours, and by March, the sunshine reaches 266 hours, heralding the arrival of spring. The trend continues upward, peaking in August with a delightful 315 hours of radiant sunshine, perfect for enjoying the region's beautiful landscapes. As summer fades into autumn, the sunlight gradually diminishes, with October and November recording 241 and 239 hours respectively, before closing the year in December with 221 hours. This consistent increase and gradual decline in sunshine hours throughout the year wonderfully illustrate Wakayama’s seasonal rhythms, making it a captivating destination for sun-seekers.

Monthly Sunshine Duration in Wakayama: January Highlighted

The January sunshine duration represents the total number of hours Wakayama experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec185h230h266h282h295h275h273h315h250h241h239h221h
Data source: Wakayama January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Wakayama During January

In Wakayama, Japan, the likelihood of sunny weather shows interesting fluctuations throughout the year. In January, there's a solid 46% chance of sunshine, setting the stage for gradually increasing levels of brightness as the months progress. February sees an uptick to 54%, indicating a sunnier start to the year. However, this sunny trend takes a slight dip in March with a 44% chance, before stabilizing at around 47% in April. As spring approaches, May's probability drops to 30%, hinting that the rainier season is on the horizon. Interestingly, the sun returns in the later months, with October soaring to 59%, followed by December at 58%, showcasing a delightful rebound as the year closes. Overall, January stands out as a promising month, paving the way for a year rich in varying levels of sunshine.

Percentage of Sunny Days in January in Wakayama

The chart illustrates the percentage of sunny days in Wakayama throughout the year, with January 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 Wakayama experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec46%54%44%47%30%25%31%30%28%59%53%58%
Data source: Wakayama January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Wakayama in January

In Wakayama, Japan, January greets residents with approximately 10 hours of daylight, a duration that remains consistent through February. As spring approaches in March, the daylight begins to extend, reaching 11 hours, signaling the gradual lengthening of days. This trend continues into April and May, where daylight peaks at 13 hours, inviting more outdoor activities and vibrant cherry blossoms. The summer months of June and July see the longest days, with a bright 14 hours of daylight, perfect for soaking up the sun. However, as August rolls in, daylight gently decreases to 13 hours, foreshadowing the transition to autumn. By September, daylight reduces to 12 hours, and the progression towards shorter days continues into October and November with 11 and 10 hours respectively. Finally, December marks the year's end with just 9 hours of daylight, a natural cycle that accentuates the seasonal rhythm of Wakayama's breathtaking environment.

Average Daylight Hours in Wakayama for January

The chart illustrates the variation in daylight duration in Wakayama throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 7m10h 55m11h 58m13h 2m13h 56m14h 23m14h 10m13h 23m12h 21m11h 17m10h 21m9h 53m
Data source: Wakayama daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Wakayama

In Wakayama, Japan, January greets residents with an invigorating average wind speed of 4.4 m/s (10 mph), setting a brisk tone for the new year. This gusty start gives way to slightly calmer winds in February and beyond, with speeds gradually tapering off to 3.9 m/s through the spring months. As summer rolls in, the winds continue their descent, reaching a low of 2.5 m/s (6 mph) in July, providing a gentle atmosphere perfect for outdoor enjoyment. However, as the year progresses into autumn and winter, a notable resurgence occurs, with December peaking once again at 4.5 m/s (10 mph), suggesting that while the year may start with robust winds, it ends on an equally lively note. This cyclical dance of breezes reflects the rich seasonal changes, inviting residents and visitors alike to embrace the unique charms of each month.

Average January Wind Speed in Wakayama

The chart displays monthly wind speed patterns in Wakayama, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec4.4 m/s4.23.93.93.62.72.53.92.83.43.64.5
Data source: Wakayama January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Wakayama Compares to Other Months

Weather in Wakayama varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Wakayama, focusing on differences in temperature, rainfall, humidity, and UV levels.

In January, the weather features a minimum temperature of -1°C (30°F) and an average of 6°C (44°F), with a maximum reaching 17°C (62°F). This month experiences around 63 mm (2.5 in) of precipitation over 9 days, accompanied by a high humidity level of 82%.

In contrast, February sees a similar minimum temperature of -1°C (31°F), but with a slightly higher average of 7°C (44°F) and a maximum of 18°C (65°F). Precipitation increases to 76 mm (3.0 in) over the same 9 days, while humidity decreases slightly to 79%. Overall, February tends to be a bit warmer and wetter than January. For more details on February weather, visit Wakayama weather in February.

In January, temperatures in Wakayama range from a chilly -1°C (30°F) to a mild 17°C (62°F), with an average of 6°C (44°F). The month experiences around 63 mm (2.5 in) of precipitation over 9 days, contributing to a relatively high humidity level of 82%. In contrast, March brings slightly warmer conditions, with temperatures ranging from a minimum of 1°C (34°F) to a maximum of 20°C (68°F) and an average of 10°C (51°F). However, March sees increased rainfall, with approximately 115 mm (4.5 in) of precipitation spread across 11 days, while humidity decreases to a more comfortable 74%. For more details, check out Wakayama weather in March.

January and April present distinct contrasts in weather patterns. In January, the temperatures range from a chilly minimum of -1°C (30°F) to a mild maximum of 17°C (62°F), with an average of 6°C (44°F). The month experiences a fair amount of precipitation, totaling 63 mm (2.5 in) over about 9 days, coupled with high humidity at 82%. In comparison, April offers a significant warming trend, with temperatures fluctuating between a minimum of 4°C (39°F) and a maximum of 23°C (73°F), averaging 14°C (58°F). The month is notably wetter, recording 128 mm (5.1 in) of rain across 10 days, though the humidity drops to a more comfortable 76%. For more details, you can check out Wakayama weather in April.

In January, the weather is quite cool, with temperatures ranging from a minimum of -1°C (30°F) to an average of 6°C (44°F) and a maximum of 17°C (62°F). The month sees about 63 mm (2.5 in) of precipitation over 9 days, coupled with a high humidity level of 82%. In contrast, May brings warmer conditions, with temperatures ranging from a minimum of 8°C (47°F) to an average of 19°C (67°F) and reaching up to 28°C (82°F). However, May also experiences significantly more precipitation, totaling 164 mm (6.5 in) across 10 days, with humidity slightly elevated at 83%. For a closer look at the weather details, check out Wakayama weather in May.

January and June present a striking contrast in weather conditions. In January, temperatures range from a chilly -1°C (30°F) at night to a mild 17°C (62°F) during the day, with an average of 6°C (44°F). The month is relatively dry with 63 mm (2.5 in) of precipitation over 9 days and a humidity level of 82%. In contrast, June experiences much warmer temperatures, with nighttime lows of 14°C (58°F) and daytime highs reaching 28°C (83°F), averaging around 22°C (72°F). This month sees significantly more rainfall, totaling 199 mm (7.8 in) over 14 days, coupled with slightly higher humidity at 87%. For more details on the weather during this month, visit Wakayama weather in June.

In January, the weather is quite cool, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 17°C (62°F), and an average of 6°C (44°F). This month typically sees about 63 mm (2.5 inches) of precipitation over approximately 9 days, with humidity levels at 82%. In contrast, July brings warm and humid conditions, with temperatures ranging from a minimum of 20°C (69°F) to a maximum of 34°C (94°F) and an average of 26°C (80°F). The month is significantly wetter, receiving around 302 mm (11.9 inches) of rainfall over 18 days, accompanied by higher humidity levels of 93%. For more detailed insights on the warm summer weather, check out Wakayama weather in July.

In January, the weather in Wakayama is cool, with temperatures ranging from a minimum of -1°C (30°F) to a maximum of 17°C (62°F) and an average of 6°C (44°F). This month sees about 63 mm (2.5 in) of precipitation over approximately 9 days, coupled with a relative humidity of 82%. In contrast, August experiences a significant rise in temperature, with minimums of 20°C (68°F) and maximums reaching up to 35°C (95°F), averaging around 28°C (83°F). Precipitation during this month increases to 178 mm (7.0 in) over 12 days, and the humidity also rises slightly to 91%. For more details on August weather, you can visit Wakayama weather in August.

In January, the weather is quite cool, with temperatures ranging from a chilly -1°C (30°F) to a mild max of 17°C (62°F), and an average of around 6°C (44°F). The month sees about 63 mm (2.5 in) of precipitation over approximately 9 days, with humidity levels at 82%. In contrast, September boasts much warmer weather, featuring minimum temperatures of 15°C (60°F) and maximums reaching up to 33°C (92°F), with an average of 25°C (77°F). However, it is also a wetter month, with 203 mm (8.0 in) of precipitation spread over 15 days, and humidity slightly higher at 87%. For a detailed look at September's weather, you can refer to Wakayama weather in September.

January and October present contrasting weather experiences. In January, temperatures range from a chilly -1°C (30°F) at night to a mild 17°C (62°F) during the day, with an average temperature of 6°C (44°F). Humidity levels are high at 82%, and the month sees 63 mm (2.5 in) of precipitation over roughly 9 days.

In stark contrast, October enjoys much warmer temperatures, with a minimum of 10°C (49°F) and reaching up to 29°C (84°F), culminating in a pleasant average of 20°C (67°F). However, October also brings significant rainfall, totaling 267 mm (10.5 in) over about 12 days, and slightly higher humidity at 85%. For those interested in the specific weather details for this month, check out Wakayama weather in October.

In comparing the weather between January and November, we can see notable differences in temperature and conditions. January features cooler temperatures, with a minimum of -1°C (30°F) and an average of 6°C (44°F), while November enjoys milder weather, with temperatures ranging from a minimum of 4°C (40°F) to an average of 14°C (57°F). Both months receive the same amount of precipitation—63 mm (2.5 in)—but January experiences rain over nine days compared to November's seven days. Additionally, humidity levels are quite similar, with January at 82% and November slightly higher at 83%. Overall, November presents a more comfortable climate, perfect for outdoor activities, as detailed in this article on Wakayama weather in November.

In January, the weather tends to be cooler than in December, with minimum temperatures dropping to -1°C (30°F) compared to December's 2°C (35°F). The average January temperature is 6°C (44°F), while December enjoys a milder average of 9°C (48°F). January sees a maximum of 17°C (62°F), which is lower than December's peak of 21°C (70°F). Precipitation is also slightly lower in January, totaling 63 mm (2.5 in) over 9 days, while December experiences 76 mm (3.0 in) across 10 days. Humidity remains relatively high in both months, with January at 82% and December at 83%. For a more detailed look at the conditions during December, visit Wakayama weather in December.

Compare Wakayama's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Wakayama

In January, Wakayama experiences a distinct chill that sets it apart from the milder months of the year. With temperatures fluctuating around a maximum of 17°C, the average settles at a brisk 6°C, while nighttime can dip to a frosty -1°C. This month also brings increased humidity at 82% and a noteworthy 63 mm of precipitation spread over about nine days, adding a damp layer to the winter air. This combination creates a unique atmosphere that contrasts sharply with the warmer, drier summers and makes January an essential time to experience Wakayama’s serene winter landscape. For a deeper dive into the region’s weather patterns throughout the year, check out Wakayama Climate.