Last updated: August 21, 2025
January in Miyakojima, Japan offers a mild escape with average temperatures hovering around 20°C (68°F), while highs can reach a pleasant 25°C (77°F) and lows dip to around 12°C (55°F). With humidity levels at 73%, visitors can expect a comfortable yet slightly humid atmosphere. Rainfall is present, with 90 mm (3.6 in) of precipitation spread over approximately 12 days, making it advisable to pack an umbrella or raincoat. Overall, January provides a serene blend of warmth and occasional showers, perfect for exploring the island's stunning landscapes.
In January, Miyakojima experiences pleasant winter temperatures that invite outdoor exploration. With a minimum of 12°C (55°F) and an average of 20°C (68°F), the island remains comfortably mild, reaching a maximum of 25°C (77°F) on warmer days. This slight chill gives way to warmer months ahead, as February sees temperatures gradually rise, maintaining an average of 20°C (68°F). As spring approaches in March and April, temperatures further increase, showcasing an overall trend of warmth that peaks in the summer. While January offers a brief respite from the heat, it sets the stage for the tropical climate that characterizes Miyakojima throughout the year, making it a delightful winter getaway.
In January, Miyakojima experiences a moderate precipitation total of 90 mm (3.6 in) over approximately 12 rainy days. This sets the stage for the wetter months ahead, as rainfall begins to climb consistently from February onward, reaching its peak in August with a staggering 279 mm (11.0 in). As the year progresses, each month typically brings between 12 to 18 days of rain, indicating a pattern of increasing moisture that culminates in a summer season characterized by intense rainfall. The data reveals a clear transition from the cooler, drier start of the year towards the lush, vibrant atmosphere of late spring and summer, making January an intriguing precursor to the island's more pronounced wet conditions.
In Miyakojima, Japan, January typically experiences a humidity level of 73%, a figure that remains stable into February. As spring approaches, the humidity begins to rise, peaking at 86% in June. The trend is noticeable; after January, humidity consistently climbs, reaching peak levels in the summer months. Despite a slight tapering off in late summer and autumn, with 81% humidity observed in October and November, the overall trend showcases a gradual increase as the year progresses. The year closes with December at 77%, hinting at a return to cooler, drier conditions, yet still higher than in the opening month. This consistent humidity characterizes the island’s tropical climate, making it both a lush paradise and a destination for those who appreciate balmy weather.
In January, Miyakojima experiences a UV Index of 7, indicating a high exposure category, where the risk of harm from unprotected sun exposure begins to rise. With a burn time of just 25 minutes, it's a reminder that even in winter, caution is necessary. As the months progress, the UV Index increases dramatically, peaking at 13 from May to September, reflecting an extreme exposure level with a minimal burn time of just 10 minutes. This trend highlights the importance of sun protection during the hotter months, particularly as spring transitions into summer with an alarming consistency in the UV ratings. As the year draws to a close, January and December return to a high exposure level, reminding us that the sun's rays can still pose a risk during the cooler months. For more information on the UV Index throughout the year, visit Miyakojima UV Index.
UV Risk Categories
In Miyakojima, Japan, the allure of January is marked by 160 hours of sunshine, serving as a tranquil prelude to the island's vibrant seasonal transition. As winter gives way to spring, sunlight hours steadily increase, peaking in July with an impressive 333 hours. This trend reflects the warm embrace of summer, where bright days become longer and more frequent. As the year wanes, sunshine hours gradually decline, with November enjoying 231 hours before closing the year with 201 hours in December. This rhythmic dance of sunlight not only invites outdoor exploration but also highlights the unique charm of Miyakojima’s climate throughout the year, making every month an opportunity to bask in its natural beauty.
In Miyakojima, Japan, January tends to be one of the least sunny months, with only a 20% chance of clear skies. This figure starkly contrasts with the following month, February, when the likelihood of sunny weather nearly doubles to 47%. As spring approaches, the sunny prospects continue at a steady 47% in March, while a slight dip to 43% occurs in April. The trend shifts as summer approaches, with May seeing a 33% chance and a significant drop to 8% in June. However, the sun returns intermittently over the summer months, peaking again in September at 60%. Overall, as the year progresses, so does the likelihood of sunny days, making early months like January a less favorable time for sunshine enthusiasts.
In Miyakojima, Japan, January greets residents with 10 hours of daylight, gently heralding the gradual increase toward spring. As the month transitions into February, daylight extends to 11 hours, setting the stage for a vibrant awakening of nature. March marks a significant leap into the brightening days with 12 hours of sunshine, a trend that continues into April, creating an inviting atmosphere for outdoor activities. May and June maintain this delightful 13-hour daylight threshold, providing ample time for exploration and enjoyment of the island’s beautiful landscapes. However, as summer wanes, daylight begins to recede, with August returning to 12 hours and the subsequent months gradually dropping back to 10 hours by November and December. This cyclical pattern showcases the island’s rhythmic dance with daylight, where each month offers its own charm, inviting visitors and locals alike to embrace the sun’s embrace as they navigate the passage of time.
January in Miyakojima is marked by refreshing gusts, with an average wind speed of 8.7 m/s (19 mph), matching its breezy counterpart in December. The winds then begin a gradual decline, reaching their lowest point in May at 5.9 m/s (13 mph). As summer approaches, the winds pick up again, peaking in April and July at 7.3 m/s (16 mph) and 7.4 m/s (16 mph), respectively. The fall months bring a noticeable drop, with September experiencing the calmest conditions at 5.4 m/s (12 mph). These patterns illustrate not only the dynamic climate of the island but also a consistent rhythmic ebb and flow of breezes throughout the year, offering both tranquility and invigoration depending on the season.
Weather in Miyakojima varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Miyakojima, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather features a minimum temperature of 12°C (55°F), with an average of 20°C (68°F) and a maximum of 25°C (77°F). The month experiences significant rainfall, totaling 90 mm (3.6 in) over 12 days, while maintaining a consistent humidity level of 73%. In contrast, February sees a slight increase in minimum temperature to 14°C (57°F), with the average temperature remaining the same at 20°C (68°F) and a slight decrease in maximum temperature to 24°C (76°F). Precipitation also decreases to 74 mm (2.9 in), albeit over 13 days, with humidity remaining stable at 73%. For more detailed information, visit Miyakojima weather in February.
In comparing the weather between January and March, it is evident that March experiences slightly warmer temperatures, with minimums rising from 12°C (55°F) in January to 16°C (60°F) in March. The average temperature in March (21°C or 71°F) is marginally higher than January's average of 20°C (68°F), while the maximum temperatures remain quite similar, peaking at 25°C (78°F) in March and January. However, March sees increased precipitation, totaling 135 mm (5.3 in) over 13 days, compared to January's 90 mm (3.6 in) over 12 days. Additionally, humidity levels are slightly higher in March at 77% versus 73% in January, indicating a more humid environment as spring approaches. For a more detailed look at the weather specifics in March, you can refer to Miyakojima weather in March.
In January, the weather is generally milder, with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (77°F) and an average of 20°C (68°F). The month experiences about 90 mm (3.6 in) of precipitation over 12 days, accompanied by a humidity level of 73%. In contrast, April sees warmer temperatures, with a minimum of 17°C (62°F), an average of 23°C (73°F), and a maximum of 27°C (81°F). However, this month also brings increased rainfall, accumulating to 126 mm (5.0 in) over the same number of days, and humidity rises slightly to 83%. For a comprehensive look at April's weather, you can visit Miyakojima weather in April.
In January, the weather tends to be milder, with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (77°F), averaging around 20°C (68°F). Precipitation levels are moderate at 90 mm (3.6 in) over 12 days, accompanied by a humidity level of 73%. In contrast, May experiences warmer temperatures, with a minimum of 21°C (70°F), an average of 25°C (78°F), and a maximum of 29°C (84°F). The month also sees increased rainfall, accumulating to 157 mm (6.2 in) spread over 14 days, and higher humidity at 85%. For a more detailed view of what to expect, check Miyakojima weather in May.
In January, the weather is quite mild, with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (77°F) and an average temperature of 20°C (68°F). This month sees about 90 mm (3.6 in) of precipitation over 12 days, coupled with a humidity level of 73%. In contrast, June brings significantly warmer temperatures, with minimums around 24°C (76°F), an average of 28°C (82°F), and maximums reaching 30°C (86°F). Precipitation increases notably to 232 mm (9.2 in) distributed over 18 days, and humidity also rises to 86%. For more detailed insights into the weather conditions in June, you can visit Miyakojima weather in June.
In January, the weather is mild with temperatures ranging from a pleasant minimum of 12°C (55°F) to a maximum of 25°C (77°F), accompanied by an average temperature of 20°C (68°F). The month sees around 90 mm (3.6 in) of precipitation over 12 days, with a humidity level of 73%. In contrast, July brings significantly warmer temperatures, with a minimum of 27°C (80°F) and an average of 29°C (84°F), peaking at 30°C (87°F). Precipitation in July is notably higher, totaling 221 mm (8.7 in) over 14 days, and humidity increases to 84%. For more details on the weather specifics in July, you can check this link: Miyakojima weather in July.
January and August present starkly contrasting weather conditions. In January, temperatures are mild, with a minimum of 12°C (55°F) and an average of around 20°C (68°F), peaking at a comfortable 25°C (77°F). The month experiences 90 mm (3.6 in) of precipitation over approximately 12 days, coupled with a humidity level of 73%. In comparison, August brings much warmer temperatures, with a minimum of 26°C (79°F) and an average of 28°C (83°F), reaching a maximum of 30°C (87°F). However, this warmth accompanies significantly higher rainfall, totaling 279 mm (11.0 in) across 21 days, and an increased humidity of 82%. For those interested in more details, you can find additional information here: Miyakojima weather in August.
January and September present stark contrasts in weather conditions. In January, temperatures range from a mild 12°C (55°F) to a comfortable 25°C (77°F), with an average of 20°C (68°F). During this month, precipitation is relatively low at 90 mm (3.6 in), falling over 12 days, and humidity hovers around 73%.
In contrast, September experiences much warmer temperatures, with minimums of 25°C (77°F) and maximums reaching 30°C (87°F), resulting in a higher average of 28°C (83°F). This month also sees significantly increased rainfall, with 260 mm (10.3 in) scattered over 17 days, and humidity rises to 83%. For more detailed information on September weather, you can check Miyakojima weather in September.
In January, the weather is cooler, with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (77°F) and an average of about 20°C (68°F). The month sees around 90 mm (3.6 in) of precipitation over approximately 12 days, with humidity levels at 73%. In contrast, October is warmer, featuring minimum temperatures of 22°C (72°F) and maximums reaching 29°C (85°F), giving it an average temperature of 26°C (79°F). This month experiences higher rainfall, totaling 140 mm (5.5 in) over 15 days and increased humidity at 81%. For more detailed information on October weather, you can visit Miyakojima weather in October.
In January, the weather features a cooler temperature range, with minimums around 12°C (55°F) and daily averages at 20°C (68°F), peaking at 25°C (77°F). The month sees about 90 mm (3.6 in) of precipitation spread over 12 days, contributing to a humidity level of 73%. In contrast, November offers warmer conditions, with minimum temperatures around 20°C (68°F) and an average of 24°C (76°F), while the maximum only slightly increases to 26°C (80°F). However, November also experiences more rain, totaling 123 mm (4.9 in) across 13 days and a higher humidity of 81%. For a detailed look at conditions during this time, visit Miyakojima weather in November.
In comparison to December, January offers slightly cooler temperatures, with a minimum of 12°C (55°F) and an average of 20°C (68°F), while December features a minimum of 14°C (58°F) and an average of 22°C (71°F). January experiences less precipitation with 90 mm (3.6 in) over 12 days, contrasting sharply with December’s significantly higher 229 mm (9.0 in) across 18 days. Additionally, January's humidity is slightly lower at 73%, compared to December's 77%. For more detailed information on December’s climate, you can visit Miyakojima weather in December.
January in Miyakojima offers a refreshing departure from the heat typical of the summer months. With average temperatures hovering around a comfortable 20°C (68°F), it invites visitors to enjoy outdoor activities without the sweltering humidity found in other seasons. While the month does see some rainfall, totaling 90 mm (3.6 in) over approximately 12 days, this only adds to the island's lush greenery and vibrant landscapes. The 73% humidity can feel crisp rather than oppressive, making it an ideal time for exploration. For a deeper understanding of what to expect, check out Miyakojima Climate.