Last updated: August 21, 2025
January in Ishigaki, Japan offers a pleasant mix of mild temperatures and refreshing humidity. With maximums reaching 25°C (76°F) and an average of 20°C (69°F), visitors can enjoy comfortable outdoor activities. However, the month also sees a minimum temperature drop to 12°C (55°F), perfect for chilly evenings. Rainfall is relatively moderate, accumulating to 109 mm (4.3 in) over 15 days, contributing to the lush landscape that Ishigaki is renowned for. The humidity hovers around 76%, adding a tropical feel to the island climate. This blend of warmth and moisture makes January an appealing time for both relaxation and exploration in this stunning destination.
In Ishigaki, Japan, January welcomes visitors with a pleasantly mild climate, boasting an average temperature of 20°C (69°F). With daytime highs reaching up to 25°C (76°F) and nightly lows around 12°C (55°F), it's an inviting escape for those seeking warmth without the sweltering heat of summer. As the months transition into February and beyond, temperatures gradually rise, maintaining an average of 20°C while nighttime lows increase slightly. This trend continues through spring, with March signaling a shift towards more warmth, culminating in a peak summer climate by June. The steady climb from January invites outdoor adventures amidst the island’s stunning natural beauty, making it an ideal time to experience Ishigaki's charm before the heat intensifies in the summer months.
In Ishigaki, Japan, January typically brings a moderate 109 mm (4.3 in) of precipitation over approximately 15 days. This marks the beginning of a gradual increase in rainfall, setting the stage for the wetter months ahead. As winter transitions to spring, February sees a decrease in rainfall to 82 mm (3.2 in), hinting at a brief reprieve before the rainy season begins in earnest. By March, precipitation rebounds to 140 mm (5.5 in), continuing the upward trend that reaches its peak in August, when residents can expect a substantial 280 mm (11.0 in) across 21 days. This pattern underscores Ishigaki's notable seasonal variability, with January serving as a transitional month that paves the way for the lush, wet summer that follows.
In January, Ishigaki, Japan experiences a humidity level of 76%, setting the stage for a steadily rising trend that characterizes the following months. As the year progresses into February, the humidity dips slightly to 74%, but by March, it climbs back up to 79%. This increasing pattern continues, peaking in late spring and summer, where both May and June hold a consistent and warm 84%. As summer transitions into autumn, humidity levels gradually decrease, stabilizing around the 82% mark by September and then gently tapering off to 80% in November. Even in December, the humidity remains a notable 78%, ensuring that Ishigaki retains its characteristic tropical feel throughout the year. This trend highlights a humid climate that greatly defines the island's enchanting atmosphere.
In January, Ishigaki, Japan, experiences a very high UV Index of 8, with a burn time of just 15 minutes for unprotected skin. This sets the stage for a month where sun safety is crucial. As we transition into February, the UV Index spikes to 10, signifying the need for heightened vigilance against sun exposure. The trend continues into March, April, and May, with the UV Index reaching an extreme level of 12, shortening burn time to just 10 minutes. This pattern of escalating UV intensity persists through the summer months of June to September, where the UV Index remains at 13, highlighting the importance of sun protection during these peak times. As the year winds down, the Index decreases to 10 in October and slides further to 7 in December, indicating a seasonal ebb in sun intensity. Understanding these trends is essential for planning outdoor activities in this sun-soaked paradise. For more detailed information, visit Ishigaki UV Index.
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In Ishigaki, Japan, January marks the beginning of a year filled with remarkable sunshine, boasting 163 hours of bright rays. As the seasons transition, the days grow longer, peaking during the summer months. February welcomes a notable increase to 217 hours, while March and April further embrace the warmth with 270 and 273 hours respectively. The sun truly shines at its zenith in July, offering a dazzling 334 hours, making it the sunniest month of the year. This abundance gradually tapers down in the following months, maintaining a rich yet declining amount of daylight. By December, the island basks in 205 hours, gently reminding us that even as the days shorten, the allure of Ishigaki's sunshine remains a cherished constant throughout the seasons.
In January, Ishigaki, Japan, experiences a modest 21% chance of sunny weather, making it one of the months with the least likelihood of sunshine. As winter gives way to spring, the chances increase significantly, with February and March offering 46% and 41% likelihoods respectively. Notably, the island reaches its sunniest periods later in the year; September boasts a striking 61% chance of sun, while October and November maintain healthy averages around 44% and 38%. This clear trend underscores Ishigaki's transition from less sunny winter days to vibrant, sun-soaked autumn months, inviting visitors to plan their travels accordingly.
In Ishigaki, Japan, January marks the beginning of the year with about 10 hours of daylight, setting a steady rhythm that gradually unfolds. As winter gives way to spring, February and March see increasing daylight, with February gaining an additional hour before reaching 12 hours by March. This trend continues into April and May, where the days become longer and brighter, peaking at 13 hours in late spring and summer. Throughout June and July, daylight remains consistent, creating a perfect backdrop for outdoor activities. As we transition into autumn, daylight begins its gentle decline, tapering back to 10 hours again by November and December. This cyclical pattern showcases nature's embrace of both light and darkness, making every month in Ishigaki a unique experience.
In Ishigaki, Japan, January ushers in one of the year's most notable wind patterns, boasting an average speed of 8.4 m/s (19 mph). This brisk air sets the stage for a transition into the calming breezes of spring, as the following months see a steady decline in wind speed, with February dropping to 6.5 m/s (15 mph) and March even lower at 5.9 m/s (13 mph). As the year progresses, there’s a noticeable variability, with wind speeds fluctuating modestly but consistently around the mid-range through the summer and early autumn. Interestingly, both December (8.7 m/s) and October (7.8 m/s) see a resurgence in wind activity, hinting at more dynamic weather patterns during the year’s end. Overall, January's invigorating winds not only provide a vibrant start to the year but also serve as a precursor to the gentle breezes that characterize the Island's climatic transitions.
Weather in Ishigaki varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Ishigaki, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather features mild temperatures with a minimum of 12°C (55°F) and a maximum of 25°C (76°F), along with a notable humidity level of 76%. This month also experiences significant precipitation, totaling 109 mm (4.3 in) across 15 days. Conversely, February exhibits a slight increase in minimum temperature, rising to 14°C (57°F), while maintaining an average temperature of 20°C (69°F) and a maximum of 25°C (77°F). Additionally, February sees a decrease in total precipitation to 82 mm (3.2 in) over 14 days and a modest drop in humidity to 74%. For more detailed weather information, you can check out Ishigaki weather in February.
In January, temperatures range from a mild 12°C (55°F) to a pleasant 25°C (76°F), with an average of 20°C (69°F). The month sees a significant amount of rainfall, totaling 109 mm (4.3 inches) over approximately 15 days, while the humidity hovers around 76%. In contrast, March experiences slightly warmer conditions, with minimum temperatures rising to 16°C (61°F) and maximums reaching 26°C (78°F), averaging 22°C (71°F). This month also sees increased precipitation, totaling 140 mm (5.5 inches) over 14 days and slightly higher humidity at 79%. For a closer look at what to expect, you can check Ishigaki weather in March.
In January, the weather typically features milder temperatures with a minimum of 12°C (55°F) and an average high of 25°C (76°F). The month experiences significant precipitation, totaling 109 mm (4.3 in) over approximately 15 days, accompanied by a humidity level of 76%. In contrast, April brings warmer conditions, with a minimum temperature of 17°C (63°F) and an average high of 27°C (81°F). This month also sees an increase in precipitation, totaling 146 mm (5.8 in) across 13 days, and humidity rises slightly to 82%. For a detailed look at what to expect, you can check out Ishigaki weather in April.
In January, the weather is mild, with average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (76°F). The month experiences significant humidity at 76% and receives about 109 mm (4.3 in) of precipitation over 15 days. In contrast, May brings warmer conditions with temperatures starting at a minimum of 21°C (71°F) and peaking at 29°C (85°F). Although it is slightly wetter, with 139 mm (5.5 in) of rainfall over 14 days, the humidity also rises to 84%. Overall, May is warmer and more humid compared to January, offering a distinctly different climate. For more details on the weather during this month, you can check Ishigaki weather in May.
January and June present contrasting weather conditions. In January, temperatures are milder, with minimums of 12°C (55°F) and averages around 20°C (69°F), peaking at 25°C (76°F). However, this month experiences significant rainfall, totaling 109 mm (4.3 in) over about 15 days, coupled with a humidity level of 76%. In stark contrast, June boasts warmer temperatures, starting at a minimum of 25°C (76°F) and averaging 28°C (82°F), reaching a maximum of 30°C (86°F). This month sees a substantial increase in precipitation, with 184 mm (7.2 in) expected over 16 days and a higher humidity level of 84%. For more detailed insights, you can check Ishigaki weather in June.
In January, the weather is relatively mild, with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (76°F), averaging around 20°C (69°F). This month sees a fair amount of rain, with 109 mm (4.3 in) of precipitation spread over 15 days, coupled with a humidity level of 76%. In contrast, July is significantly warmer, featuring minimum temperatures of 27°C (80°F) and maximums reaching 30°C (87°F), with an average of 29°C (84°F). Rainfall increases to 182 mm (7.2 in) over 16 days, and humidity rises to 84%, creating a much more tropical atmosphere. For a detailed look at July weather specifics, check out Ishigaki weather in July.
In January, the weather is relatively mild with temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (76°F), averaging around 20°C (69°F). January also sees substantial precipitation, with 109 mm (4.3 in) spread over 15 days, and humidity levels at 76%. In contrast, August presents a much warmer climate, with temperatures ranging from 26°C (79°F) to 30°C (86°F), averaging 28°C (83°F). The month experiences higher precipitation, totaling 280 mm (11.0 in) over 21 days, and increased humidity at 83%. This stark contrast highlights the significant seasonal differences in weather patterns. For more details, check out Ishigaki weather in August.
In comparing the weather between January and September, January offers milder temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (76°F), with an average of 20°C (69°F). The month experiences substantial precipitation, totaling 109 mm (4.3 in) over about 15 days, along with a humidity level of 76%. In contrast, September boasts warmer temperatures, with a minimum of 25°C (78°F) and reaching up to 30°C (87°F), averaging 28°C (83°F). This month also sees higher levels of rainfall, accumulating 182 mm (7.2 in) over 17 days and with humidity increasing to 82%. For a detailed view of the September climate, you can visit Ishigaki weather in September.
In January, the weather is generally cooler, with average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (76°F), accompanied by relatively high humidity at 76%. This month experiences about 109 mm (4.3 in) of precipitation over approximately 15 days. In contrast, October features warmer temperatures, with averages between 22°C (72°F) and 29°C (85°F). The humidity increases slightly to 81%, and precipitation is more substantial at 173 mm (6.8 in) over 17 days. For more details on the October weather in Ishigaki, you can visit Ishigaki weather in October.
In January, temperatures in Ishigaki typically range from a minimum of 12°C (55°F) to a maximum of 25°C (76°F), with an average temperature of 20°C (69°F). The month experiences about 109 mm (4.3 in) of precipitation over 15 days, while the humidity hovers around 76%. In contrast, November brings warmer temperatures, with a minimum of 20°C (68°F) and a maximum of 27°C (81°F), averaging 24°C (76°F). November also sees increased precipitation at 151 mm (5.9 in) across 16 days, along with slightly higher humidity at 80%. For more detailed insights on the weather during this month, visit Ishigaki weather in November.
In comparing the weather between January and December, January tends to be slightly cooler, with average temperatures ranging from a minimum of 12°C (55°F) to a maximum of 25°C (76°F), while December features a higher average temperature, with a minimum of 14°C (57°F) and a maximum of 26°C (79°F). December also experiences significantly more rainfall, with 197 mm (7.8 in) of precipitation over 20 days compared to January’s 109 mm (4.3 in) over 15 days. Additionally, humidity levels are comparable, with January at 76% and December at 78%. For further details on December conditions, check Ishigaki weather in December.
January in Ishigaki presents a unique blend of mild temperatures and higher humidity, setting it apart from the warmer, sunnier months of the year. With an average temperature hovering around 20°C, it’s a perfect escape from the colder climates elsewhere. Visitors may notice an increase in precipitation, with about 15 days of rain, making it one of the wetter months. This moisture contributes to the lush landscapes that define the island. If you're planning a trip, be aware that while January may not boast beach-perfect weather every day, it offers a tranquil and refreshing experience that showcases Ishigaki’s beauty. For a comprehensive overview of seasonal weather patterns, check out Ishigaki Climate.