Last updated: August 21, 2025
January in Okinawa, Japan offers a delightful winter experience, characterized by a pleasant average temperature of 19°C (66°F), with peaks reaching a maximum of 24°C (75°F). Visitors can expect a relatively cool atmosphere, with nighttime temperatures dropping to a minimum of 12°C (54°F). While precipitation is moderate, averaging 91 mm (3.6 in) over about 11 days, the humidity remains around 71%, ensuring a mild and refreshing feel. Whether exploring picturesque landscapes or indulging in local culture, January's weather provides a perfect backdrop for outdoor activities.
In Okinawa, Japan, January marks the heart of winter with pleasantly mild temperatures. The month typically experiences a minimum of 12°C (54°F), which maintains a cozy atmosphere, while the average temperature hovers around 19°C (66°F). With maximum temperatures reaching up to 24°C (75°F), January stands out as a delightful respite from harsher winter conditions found elsewhere. Interestingly, as the year progresses into February and March, Okinawa's temperatures remain consistent, with only slight increases, hinting at a smoother transition into the warmer months. This stability in temperature reflects the region's subtropical climate, making it an appealing destination for those seeking a mild January getaway.
In January, Okinawa experiences a moderate precipitation level of 91 mm (3.6 in) over about 11 days. This marks the beginning of the year with relatively mild rainfall, setting the stage for gradually increasing moisture in the upcoming months. As February rolls in, precipitation slightly rises to 97 mm (3.8 in), maintaining a consistent number of rainy days. Moving into March, rain levels continue their upward trend, reaching 107 mm (4.2 in). The transition into spring sees April and May hit higher figures—137 mm (5.4 in) and 208 mm (8.2 in), respectively—though the number of rainy days remains stable. By June, a notable shift occurs as the rainy season begins, resulting in a significant increase to 302 mm (11.9 in) across 19 days. The trend continues through the summer months, peaking in September with 253 mm (10.0 in), before gradually tapering off in the fall. This evolving precipitation pattern highlights Okinawa's distinct seasonal changes, with January providing a gentle start to the wetter months ahead.
In Okinawa, Japan, January welcomes visitors with a comfortable humidity level of 71%, setting a balanced tone for the year ahead. Maintaining this same level in February, the island offers a brief respite before humidity begins to rise steadily in March, reaching 76%. As spring unfolds, the atmosphere becomes progressively more humid, peaking at 86% from June through July. This trend reflects the distinct subtropical climate of Okinawa, where summer months bring a sense of sticky warmth, while the humidity gradually tapers off to 82% in August and slightly lowers to 80% in October, before settling at 75% by December. Overall, the data illustrates a clear seasonal progression, where the island experiences a gradual increase in humidity, culminating in a humid summer before transitioning back to milder conditions in winter.
In January, Okinawa experiences a UV Index of 7, categorized as high, which means that while sun exposure is enjoyable, it carries some risks associated with skin damage if precautions aren’t taken. The burn time is approximately 25 minutes, allowing for a good start to the year under the sun. As the months progress, the UV Index rises sharply, reaching an extreme level of 11 by March and peaking at 13 from May to August, with burn times drastically decreasing to just 10 minutes. This notable shift highlights the importance of sun safety as the island transitions from winter to summer. Even as temperatures drop in late autumn, the UV Index remains notably high, staying at 9 in October and November. For detailed insights and trends on Okinawa's UV Index, visit Okinawa UV Index.
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In January, Okinawa basks in approximately 154 hours of sunshine, marking the start of a gradual increase that will carry through the year. As the days lengthen, February brings 203 hours, signaling a shift towards the more luminous months ahead. With the arrival of spring in March and April, sunshine peaks at 268 and 269 hours respectively, inviting outdoor adventures and vibrant blooms. The warmth intensifies in May, reaching 305 hours, while the summer months of July and August shine even brighter, boasting 317 and 319 hours of glorious sunlight. As the year progresses, sunshine begins to wane; however, even September and October maintain a respectable 295 and 274 hours. The year closes with November and December, featuring 228 and 192 hours respectively, reminding us of Okinawa's captivating charm even in the cooler months. This sunny trend underscores Okinawa's reputation as a year-round paradise, where each month offers its own unique blend of warmth and radiance.
In Okinawa, Japan, the likelihood of enjoying sunny weather in January stands at a modest 24%, making it one of the lesser sunlit months. As the year progresses, the chances of sunshine notably increase, peaking in September with 59%, while February and March also shine brighter with 42% and 46% respectively. Interestingly, although the sun tends to play hide and seek in the earlier months, there’s a remarkable rise in sunny days towards the later months, especially in October and November, where sunny weather becomes significantly more likely. Thus, if you're aiming for more sunshine, consider planning your visit to Okinawa after the first month of the year.
In Okinawa, Japan, January heralds a modest 10 hours of daylight, kicking off a gradual upward trend that peaks in the summer months. As the days lengthen, February offers a migratory increase to 11 hours, leading into March and April, where daylight remains constant at 12 hours. This steady progression continues into May and June, with a delightful 13 hours of daylight, perfect for outdoor adventures. The subsequent summer months of July and August maintain this peak, creating a vibrant atmosphere for both locals and tourists alike. However, as the year transitions into autumn, daylight begins to recede, mirroring the January start at 12 hours in September, before tapering back to 11 hours in October, and returning to 10 hours in the final months of the year. This cyclical pattern of daylight not only showcases the seasonal changes but also invites exploration throughout Okinawa's unique landscape.
In January, Okinawa greets the year with its strongest winds, averaging 8.2 m/s (18 mph), setting the tone for a breezy start. This invigorating gustiness gradually subsides, as February sees a drop to 6.9 m/s (15 mph). The trend continues into March, where winds mellow further to 5.9 m/s (13 mph), embodying the transition to spring. April brings a slight resurgence with speeds increasing to 7.6 m/s (17 mph), followed by a gentle descent through the warmer months, averaging around 6.3 to 7.5 m/s (14 to 17 mph) from May to July. Notably, September dips to the calmest average of the year at 5.4 m/s (12 mph), before winds pick back up in October and November, each returning to 7.9 m/s (18 mph). December closes the year on a stable note at 7.7 m/s (17 mph), reinforcing the island's dynamic yet soothing wind pattern throughout the seasons.
Weather in Okinawa varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Okinawa, focusing on differences in temperature, rainfall, humidity, and UV levels.
January and February in Okinawa exhibit striking similarities in temperature, with both months having a minimum of 12°C (54°F), an average of 19°C (66°F), and a maximum of 24°C (75°F for January and 76°F for February). However, February experiences slightly higher precipitation, with 97 mm (3.8 in) falling over 12 days compared to January's 91 mm (3.6 in) across 11 days. Overall, both months maintain a consistent humidity level of 71%, making for a relatively stable climate. For more detailed information on February weather, you can refer to Okinawa weather in February.
In January, temperatures range from a minimum of 12°C (54°F) to a maximum of 24°C (75°F), with an average of 19°C (66°F). The month experiences approximately 91 mm (3.6 inches) of precipitation over 11 days, and humidity levels sit around 71%. In contrast, March sees slightly warmer temperatures, with a minimum of 14°C (57°F) and the same maximum of 24°C (76°F), averaging at 20°C (68°F). Precipitation increases to 107 mm (4.2 inches) while maintaining the same frequency of 11 rainy days, and humidity rises to 76%. For more details, check out Okinawa weather in March.
In January, the weather is mild with average temperatures ranging from a minimum of 12°C (54°F) to a maximum of 24°C (75°F), accompanied by 91 mm (3.6 in) of precipitation over 11 days and a humidity level of 71%. In contrast, April sees slightly warmer temperatures, with averages between 15°C (60°F) and 26°C (79°F), along with increased precipitation of 137 mm (5.4 in) over the same number of rainy days. Additionally, the humidity rises to 82% in April, creating a more humid atmosphere. For more detailed information, visit Okinawa weather in April.
In January, the weather in Okinawa is relatively mild, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 24°C (75°F) and an average of 19°C (66°F). The month experiences moderate precipitation, totaling 91 mm (3.6 in) over approximately 11 days, and a humidity level of 71%. In contrast, May brings warmer conditions, with temperatures starting at a minimum of 19°C (67°F) and reaching a maximum of 27°C (82°F), averaging 24°C (76°F). May is notably wetter, with 208 mm (8.2 in) of rain spread across 12 days and increased humidity at 84%. For more details on the weather in May, you can check Okinawa weather in May.
The weather in January and June shows a stark contrast in both temperature and precipitation levels. In January, the temperatures range from a minimum of 12°C (54°F) to a maximum of 24°C (75°F), with an average of 19°C (66°F). The month experiences approximately 91 mm (3.6 in) of rain over 11 days and a humidity level of 71%. In contrast, June sees warmer temperatures, with a minimum of 21°C (70°F), an average of 26°C (80°F), and a maximum of 29°C (84°F). This month also has significantly more rainfall, totaling 302 mm (11.9 in) across 19 days, and higher humidity at 86%. For more detailed information about the conditions in June, you can check Okinawa weather in June.
In January, the weather in Okinawa is relatively mild, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 24°C (75°F). The average temperature sits at a comfortable 19°C (66°F), accompanied by 91 mm (3.6 in) of precipitation over approximately 11 days and a humidity level of 71%. In stark contrast, July brings a significant increase in warmth and humidity, with temperatures soaring from a minimum of 26°C (78°F) to a maximum of 30°C (87°F), averaging 28°C (83°F). This summer month experiences heavier rainfall at 192 mm (7.6 in) spread across 13 days, coupled with higher humidity levels of 86%. For more details, check out Okinawa weather in July.
January and August in Okinawa present contrasting weather patterns. In January, temperatures range from a comfortable minimum of 12°C (54°F) to a pleasant maximum of 24°C (75°F), with an average temperature of 19°C (66°F). The month sees around 91 mm (3.6 in) of precipitation over 11 days, resulting in a humidity level of 71%. In sharp contrast, August experiences much warmer temperatures, with a minimum of 26°C (78°F) and a maximum of 30°C (87°F), leading to an average temperature of 28°C (83°F). This month also sees increased rainfall, totaling 205 mm (8.1 in) over 17 days, with humidity rising to 82%. For more details, see Okinawa weather in August.
In comparing the weather between January and September, we can see a noteworthy transition in temperature and precipitation patterns. January offers milder temperatures with a minimum of 12°C (54°F) and an average of 19°C (66°F), making it quite comfortable. In contrast, September sees a significant rise, with minimum temperatures starting at 24°C (75°F) and reaching an average of 28°C (82°F), peaking at 30°C (87°F). Precipitation levels also differ considerably; January receives 91 mm (3.6 in) over 11 days, while September experiences much heavier rainfall totaling 253 mm (10.0 in) spread over 19 days. Additionally, September has a higher humidity at 82% compared to January’s 71%. For more specific details about the conditions, check out Okinawa weather in September.
In January, the weather is generally milder, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 24°C (75°F) and an average temperature of 19°C (66°F). The month sees about 91 mm (3.6 in) of precipitation over 11 days, with humidity levels around 71%. In contrast, October offers warmer conditions, with temperatures starting at a minimum of 21°C (71°F), reaching an average of 26°C (79°F), and peaking at 29°C (84°F). Rainfall is heavier in October, totaling 160 mm (6.3 in) across 13 days, and the humidity rises to 80%. For more details on Okinawa's climate during this month, you can check Okinawa weather in October.
In January, the weather in Okinawa typically features milder temperatures, with a minimum of 12°C (54°F) and an average of 19°C (66°F), reaching a maximum of 24°C (75°F). The month experiences around 91 mm (3.6 in) of precipitation over 11 days, and humidity levels average 71%. In contrast, November sees warmer temperatures, with a minimum of 19°C (67°F) and an average of 23°C (74°F), peaking at 27°C (80°F). This month also has slightly higher precipitation at 103 mm (4.1 in) over the same number of days, coupled with increased humidity at 79%. For more details on the weather patterns in November, you can check Okinawa weather in November.
In January, the weather tends to be slightly cooler than in December, with temperatures ranging from a minimum of 12°C (54°F) to a maximum of 24°C (75°F), averaging around 19°C (66°F). In contrast, December features a warmer temperature range with minimum temperatures of 14°C (58°F) and maximums reaching 25°C (78°F), averaging 20°C (69°F). Additionally, January experiences less rainfall, totaling 91 mm (3.6 in) over about 11 days, compared to December's 188 mm (7.4 in) spread over 16 days. Humidity levels are also marginally lower in January at 71% compared to 75% in December. For more detailed information, visit Okinawa weather in December.
January in Okinawa brings a mild respite from the hotter months, with temperatures that invite comfort rather than heat. This month typically showcases a blend of pleasant days and cooler nights, making it distinct from the sweltering summers. Though the humidity remains relatively high, the rainfall of 91 mm over approximately 11 days adds a refreshing touch to the air. For those contemplating a trip, January offers a unique experience that contrasts with the more humid and rainy conditions of other periods. To learn more about the broader climate patterns and how they affect your travel plans, check out Okinawa Climate.