January Weather in Yomitan, Japan

Last updated: August 21, 2025

In January, Yomitan, Japan experiences a mild winter climate characterized by an average temperature of 18°C (65°F), with daytime highs reaching up to 24°C (75°F) and nighttime lows dipping to 12°C (53°F). The month sees 99 mm (3.9 in) of rainfall over approximately 11 days, contributing to a humidity level of around 71%. These conditions create a refreshing atmosphere, inviting visitors to enjoy both the scenic beauty and cultural richness of this coastal town. Whether it's a stroll along the beach or exploration of local heritage, January offers a pleasant getaway in Yomitan.

January Temperature in Yomitan

In January, Yomitan, Japan enjoys a mild winter climate, with temperatures ranging from a comfortable 12°C (53°F) at night to a pleasant 24°C (75°F) during the day, leading to an average of 18°C (65°F). This pattern of moderate temperatures continues into February, where the numbers remain unchanged, ensuring that visitors can enjoy outdoor activities without the chill of a harsher winter. As spring approaches in March, temperatures begin to rise slightly, with a minimum of 14°C (57°F) and an average of 20°C (68°F), marking the start of a gradual warming trend that peaks in the coming months. Overall, January's temperatures highlight Yomitan's appealing subtropical climate, setting the stage for a smooth transition into the warmer seasons ahead.

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

The chart illustrates January temperature patterns in Yomitan, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Yomitan, 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).
JanFebMarAprMayJunJulAugSepOctNovDec656568707579828382787368
Data source: Temperature data for Yomitan 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 Yomitan

In January, Yomitan experiences an average precipitation of 99 mm (3.9 in), falling over approximately 11 days. This marks a transition into the wetter months ahead, with February closely following at 98 mm and slightly more consistent rain. As the season progresses, a noticeable increase occurs, peaking in June with 328 mm (12.9 in), showcasing a clear upward trend in both rainfall volume and the number of wet days. Interestingly, while January offers a relatively mild start, the progression into spring and summer reveals a dramatic escalation in precipitation, with May and June notably being the wettest months. This pattern highlights the region's distinctive wet season, characterized by heavy, frequent rains that mark the transition from winter's chill to summer's warmth.

January Precipitation Trends in Yomitan

The chart displays monthly precipitation patterns in Yomitan, 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 Yomitan, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec10098109146213328180187237149107162
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
Choose your preferred precipitation unit

January Humidity in Yomitan

In January, Yomitan, Japan experiences a steady humidity level of 71%, setting the tone for a relatively mild winter month. Remarkably, this figure remains unchanged in February, maintaining a consistent atmosphere before gradually rising. As spring approaches, March sees a noticeable increase to 76%, and by April, the humidity elevates further to 82%, reflecting the onset of warmer temperatures. The escalating trend continues into the peak of summer, with May and June reaching 84% and 86%, respectively, creating a humid and tropical feel. Even during the hottest months of July and August, humidity remains high at 86% and 82%. As the year progresses into autumn, a gentle decline begins, with October recording 80% and November settling at 79%. By December, humidity drops to 75%, rounding off the year with a slight reprieve from the preceding months' dampness. Overall, Yomitan's humidity showcases a clear seasonal trend, peaking in the summer while offering a more tempered environment in the winter months.

January Average Humidity in Yomitan

This chart illustrates the average monthly humidity levels in Yomitan, 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 Yomitan is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec71%71%76%82%84%86%86%82%82%81%79%75%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Yomitan

In January, Yomitan experiences a UV Index of 7, indicating a high exposure category and a burn time of 25 minutes. As the months progress, the UV Index climbs steadily, peaking at 13 from May through August, with an extreme exposure category that drastically reduces burn time to just 10 minutes. Interestingly, February and October maintain a very high index of 9, allowing for slightly longer sun exposure of 15 minutes. With the UV Index dipping down to 6 in December, it's clear that Yomitan's sun intensity significantly oscillates throughout the year, providing both sun worshippers and cautious individuals with essential insights into their UV exposure. For more detailed information, visit Yomitan UV Index.

Maximum UV Index Levels in Yomitan for January

The chart shows the monthly maximum UV Index (UVI) for Yomitan 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 Yomitan typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec7911121313131312996
Data source: Yomitan 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 Yomitan

In Yomitan, Japan, January serves as a gentle gateway into the year with 154 hours of sunlight, setting the tone for a gradual increase in brightness. As the months progress, the sunshine hours steadily rise, peaking in the summer with 319 hours in August, showcasing Yomitan's vibrant summer days. Notably, the transition from winter to spring is particularly striking, with sunlight hours climbing sharply from 154 in January to 268 in March. This trend continues into the bright days of late spring, where May reveals an impressive 305 hours of sunshine. As autumn approaches, the hours begin to taper off, yet even 228 hours in November hints at the lingering warmth of summer. Overall, Yomitan's progression from January to December paints a captivating portrait of seasonal changes filled with radiant sunshine.

Monthly Sunshine Duration in Yomitan: January Highlighted

The January sunshine duration represents the total number of hours Yomitan 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.
JanFebMarAprMayJunJulAugSepOctNovDec154h203h268h269h305h264h317h319h295h274h228h192h
Data source: Yomitan January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Yomitan During January

In Yomitan, Japan, the likelihood of sunny weather in January is relatively modest at 23%, making it one of the cooler and cloudier months of the year. This contrasts sharply with the sunnier days that emerge in the following months, especially February and March, where the chance of sunshine jumps to 44% and 43%, respectively. As spring approaches, the likelihood of clear skies dips slightly in April (39%) but remains promising compared to the dreary mid-year months of June, which plummets to just 9%. Interestingly, September showcases the peak at 61%, offering a delightful reprieve before the weather cools down again in the latter part of the year. Overall, while January may not boast abundant sunshine, the shift toward brighter days in February and beyond signals a gradual transition to more favorable weather in Yomitan.

Percentage of Sunny Days in January in Yomitan

The chart illustrates the percentage of sunny days in Yomitan 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 Yomitan experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec23%44%43%39%28%9%29%40%61%50%43%33%
Data source: Yomitan January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Yomitan in January

In Yomitan, Japan, January ushers in a modest 10 hours of daylight, laying the foundation for a gradual increase in sunlight as the months progress. By February, daylight extends to 11 hours, marking the beginning of a steady climb that peaks in May and June, each boasting 13 hours of golden hours. This period of ample sunlight invigorates the landscape and beckons outdoor activities. As summer wanes into autumn, daylight begins to taper off again, with 12 hours in September, and returning to 11 hours in October before settling back to 10 hours in the final months of the year. The rhythmic ebb and flow of daylight from winter's short days to the vibrant brightness of summer not only shapes the local lifestyle but also paints a beautiful canvas throughout the seasons.

Average Daylight Hours in Yomitan for January

The chart illustrates the variation in daylight duration in Yomitan throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 40m11h 14m12h12h 47m13h 26m13h 45m13h 35m13h 1m12h 17m11h 30m10h 50m10h 29m
Data source: Yomitan daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Yomitan

January in Yomitan, Japan, welcomes the year with invigorating winds, boasting an average speed of 8.2 m/s (18 mph), the highest of the month-to-month data provided. This brisk airflow sets the tone for a windy winter, gradually tapering off as February arrives with a slightly calmer 7.0 m/s (16 mph). As spring approaches, the winds soften further, reaching their annual low of 6.0 m/s (13 mph) in March, before picking up steam again in April at 7.7 m/s (17 mph). While the summer months maintain a steady breeze averaging around 6.5 m/s (15 mph), it’s the robust winds of late autumn and early winter that remind us of January's refreshing start. Notably, the seasonal cycle showcases a dynamic ebb and flow, from the lively gusts of January to the gentler whispers of late summer and early fall, highlighting Yomitan’s unique climatic rhythm.

Average January Wind Speed in Yomitan

The chart displays monthly wind speed patterns in Yomitan, 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.
JanFebMarAprMayJunJulAugSepOctNovDec8.2 m/s7.06.07.76.56.57.56.95.57.88.07.7
Data source: Yomitan January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Yomitan Compares to Other Months

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

January and February weather in Yomitan exhibit striking similarities, with both months having an average temperature of 18°C (65°F) and a typical range from a minimum of 12°C (53°F) to a maximum of 24°C (75°F). Precipitation levels are nearly identical, with January receiving 99 mm (3.9 in) over 11 days and February slightly less at 98 mm (3.9 in) over 13 days. Humidity remains consistent at 71% for both months, creating a humid tropical atmosphere. For more detailed insights, you can check Yomitan weather in February.

In January, the weather typically features a minimum temperature of 12°C (53°F) and averages around 18°C (65°F), while reaching a maximum of 24°C (75°F). The month experiences about 99 mm (3.9 in) of precipitation over 11 days, with humidity levels at 71%. In contrast, March sees slightly warmer temperatures, with minimums of 14°C (57°F), an average of 20°C (68°F), and the same maximum of 24°C (76°F). Precipitation increases to 109 mm (4.3 in) over 12 days, accompanied by higher humidity at 76%. For more detailed information, you can check Yomitan weather in March.

In January, the weather features a mild temperature range, with minimums around 12°C (53°F) and maximums reaching 24°C (75°F). The month experiences an average temperature of 18°C (65°F) with a total precipitation of 99 mm (3.9 in) over 11 days, accompanied by a humidity level of 71%. In contrast, April brings slightly warmer conditions, with minimum temperatures of 15°C (60°F) and maximums of 26°C (79°F). The average temperature rises to 21°C (70°F), and precipitation increases significantly to 146 mm (5.7 in) across 12 days, resulting in a higher humidity of 82%. For more detailed insights, you can check out Yomitan weather in April.

In January, the weather features mild temperatures with a minimum of 12°C (53°F) and an average of 18°C (65°F), reaching up to a maximum of 24°C (75°F). This month sees a moderate level of precipitation at 99 mm (3.9 in) over 11 days, accompanied by a humidity level of 71%.

In contrast, May experiences warmer temperatures with a minimum of 19°C (66°F) and an average of 24°C (75°F), peaking at 28°C (82°F). Rainfall significantly increases, totaling 213 mm (8.4 in) over 12 days, and humidity rises to 84%. This shift in weather patterns highlights a transition to a hotter and more humid climate as spring progresses. For more details, you can check Yomitan weather in May.

January and June present distinctly different weather patterns. In January, the temperatures are milder, with averages ranging from a minimum of 12°C (53°F) to a maximum of 24°C (75°F), accompanied by a moderate level of humidity at 71%. Rainfall is relatively low, with about 99 mm (3.9 in) over 11 days. In contrast, June experiences significantly warmer temperatures, starting at a minimum of 21°C (69°F) and peaking at 29°C (84°F), alongside higher humidity levels at 86%. However, June sees a substantial increase in precipitation, totaling 328 mm (12.9 in) over 20 days. To learn more about the specific weather conditions in June, you can visit Yomitan weather in June.

In January, the weather is notably milder, with average temperatures ranging from a minimum of 12°C (53°F) to a maximum of 24°C (75°F). The month experiences about 99 mm (3.9 in) of precipitation over 11 days, accompanied by a humidity level of 71%. In contrast, July brings much warmer temperatures, with a minimum of 26°C (78°F) and a maximum of 30°C (87°F), showcasing an average of 28°C (83°F). However, July also sees increased rainfall, averaging 180 mm (7.1 in) across 12 days and a higher humidity level of 86%. For a closer look at Yomitan's July weather, you can visit Yomitan weather in July.

In January, the weather is mild, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 24°C (75°F), averaging around 18°C (65°F). However, this month also sees significant precipitation, totaling 99 mm (3.9 in) over about 11 days, coupled with a humidity level of 71%. In contrast, August brings much warmer conditions, with temperatures soaring from a minimum of 26°C (78°F) to a maximum of 30°C (87°F), with an average of 28°C (83°F). The summer month experiences greater rainfall, accumulating 187 mm (7.4 in) over 16 days, and the humidity rises slightly to 82%. For more details on August weather patterns, visit Yomitan weather in August.

January and September present notable contrasts in weather conditions. In January, temperatures are milder, with a minimum of 12°C (53°F) and an average of 18°C (65°F), while precipitation is relatively moderate at 99 mm (3.9 in) over 11 days, accompanied by a humidity level of 71%. In contrast, September experiences warmer temperatures, boasting a minimum of 24°C (75°F) and an average of 28°C (82°F), with highs reaching up to 30°C (86°F). However, it also sees significantly higher rainfall, totaling 237 mm (9.3 in) across 18 days, and a slight increase in humidity to 82%. For more specific details, you can check out Yomitan weather in September.

In January, the weather features mild temperatures with a minimum of 12°C (53°F) and an average of 18°C (65°F), reaching a pleasant maximum of 24°C (75°F). This month sees around 99 mm (3.9 in) of rainfall over 11 days, with humidity levels at 71%.

In contrast, October experiences warmer temperatures, with a minimum of 21°C (70°F) and an average of 26°C (78°F), peaking at 29°C (84°F). The precipitation is slightly higher at 149 mm (5.8 in) over 12 days, and humidity rises to 80%.

For more specific details about October conditions, you can check out Yomitan weather in October.

In January, temperatures in Yomitan range from a minimum of 12°C (53°F) to a maximum of 24°C (75°F), with an average temperature of 18°C (65°F). The month experiences around 99 mm (3.9 in) of precipitation over 11 days, combined with a humidity level of 71%. In contrast, November is noticeably warmer, with temperatures varying from a minimum of 19°C (66°F) to a maximum of 26°C (80°F), and an average of 23°C (74°F). This month sees slightly higher precipitation at 106 mm (4.2 in), also over 11 days, along with increased humidity at 79%. For more information on the weather in Yomitan during November, visit Yomitan weather in November.

In comparing the weather between January and December, January tends to be slightly cooler, with temperatures ranging from a minimum of 12°C (53°F) to a maximum of 24°C (75°F), averaging around 18°C (65°F). December, on the other hand, has milder temperatures, with a minimum of 14°C (57°F) and a maximum of 25°C (78°F), averaging 20°C (68°F). Additionally, December experiences more precipitation, totaling 162 mm (6.4 inches) over 15 days, compared to January's 99 mm (3.9 inches) over 11 days. Humidity levels are also marginally higher in December at 75%, compared to January's 71%. For a more detailed look at weather patterns, you can visit Yomitan weather in December.

Compare Yomitan's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Yomitan

January in Yomitan offers a gentle respite from the heat of other months, featuring milder temperatures that invite comfortable outdoor exploration. With a maximum of 24°C and an average of 18°C, the coolness is a marked contrast to the warmer summer months, making it ideal for those who prefer more temperate conditions. However, the increased humidity and potential for 11 rainy days remind visitors that winter here is also a time for refreshing showers. Overall, January presents a unique blend of moderate warmth and moisture, setting it apart from the drier and hotter periods of the year. For more insights into the climate, check out Yomitan Climate.