Last updated: August 21, 2025
In Hirado, Japan, December showcases a diverse range of weather experiences, with temperatures reaching a maximum of 22°C (73°F), while the average hovers around 10°C (51°F), and occasional dips to a minimum of 2°C (35°F). With a precipitation total of 74 mm (2.9 in) over 7 days, the month is marked by a humidity level of 72%, adding a crispness to the air. This combination creates a dynamic atmosphere that beautifully captures the essence of winter in Hirado, making it a unique time to experience the island's seasonal charm.
As December unfolds in Hirado, Japan, the temperatures reflect a transition into the cooler winter months, yet remain relatively mild compared to other regions. Minimally, temperatures dip to around 2°C (35°F), making for brisk mornings, while the average settles at a comfortable 10°C (51°F), perfect for enjoying the beauty of the island without the harsh chill of true winter. Remarkably, highs can reach 22°C (73°F), occasionally inviting a few unseasonably warm days that remind locals of the lingering autumn warmth. This gradual cooling trend from the mild autumn months is evident, as December marks a decline from November’s averages yet still offers a cozy experience, blending cool air with the festive spirit of the season.
In Hirado, Japan, December brings a modest precipitation total of 74 mm (2.9 in), marking a notable drop compared to the wetter summer months. The rainfall is typically spread over 7 days, signaling the start of a transition towards the drier winter season. This decline follows the peak of 349 mm (13.7 in) experienced in July, as the region witnesses a gradual easing of moisture, setting the tone for the cooler months ahead. With a decrease in precipitation days, December’s weather becomes a quieter affair, allowing residents to relish the crisp, fresh air amid the backdrop of the serene landscape.
In December, Hirado, Japan, experiences a humidity level of 72%, slightly lower than the preceding months but still indicative of the region's overall damp climate. As the year progresses, humidity peaks during the summer months, reaching 97% in July and gradually declining in the winter. Notably, the transition from the high humidity of summer reflects a gradual decrease, with figures tapering down to 75% in November and 73% in January. This pattern highlights a trend of increased moisture in the warmer months, while December's reading marks a mild and comfortable humidity level, perfectly setting the stage for the cooler winter days ahead.
In Hirado, Japan, the UV Index experiences a noticeable fluctuation throughout the year, peaking during the summer months. In December, the UV Index dips to 4, categorizing it as moderate and allowing for a longer burn time of 30 minutes. This reduction follows a trend of escalating intensity from January, gradually climbing to an extreme 12 in both July and August, where the burn time shrinks dramatically to just 10 minutes. As winter approaches, relief comes with lower UV readings, allowing residents and visitors to comfortably enjoy the outdoors with moderate sun exposure. For more detailed information, check out the Hirado UV Index.
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In Hirado, Japan, December ushers in a shift with 198 hours of sunshine, a decline compared to the dynamic summer months, which peak at 306 hours in August. As the year draws to a close, the sun's rays gradually retreat from the bustling 288 hours of May and the vibrant 284 hours of April, signaling a transition into the winter season. Despite the drop, December's daylight still offers a comforting glow, perfectly contrasting the more subdued light of January, which starts the year with just 168 hours. The gradual ebb of sunlight from autumn’s 236 hours in November to December’s total highlights a consistent trend of decreasing daylight, setting the stage for a quieter, reflective time as Hirado prepares to welcome the new year.
In Hirado, Japan, the likelihood of sunny weather in December stands at 37%, reflecting a modest chance of bright days as the year comes to a close. This number is notably better than the peak summer months, where the rate of sunny conditions dips significantly, with July at only 21%. Conversely, the transition into autumn shows a positive trend, as October and November experience higher probabilities of sun, peaking at 63% and 49% respectively. Overall, while December’s sunshine chances are relatively lower compared to the autumn months, they still provide a glimmer of hope for clear skies amidst the encroaching winter chill.
In Hirado, Japan, the rhythm of daylight is gracefully orchestrated throughout the year, with December marking a notable decline in sunlight to just 9 hours. This decrease is a part of a broader trend that sees daylight gradually shortening from the longer, sun-drenched days of mid-summer, where it peaks at 14 hours in June and July. As the seasons shift, daylight gradually diminishes, particularly from November’s 10 hours to December’s 9 hours, signaling the onset of winter and a cozy, reflective time for the locals. The increase in daylight during spring and summer months invites outdoor exploration, whereas the shorter days of winter create a serene atmosphere, perfect for festive gatherings and warm indoor comforts.
As December arrives in Hirado, Japan, the wind picks up slightly, averaging 5.3 m/s (12 mph), making it a refreshing farewell to the year. This increase from the calmer months of June through November indicates a subtle shift in seasonal dynamics, where the winds typically simmer down to a gentle breeze. The December gusts are reminiscent of March, suggesting a transitional period where the cooler temperatures of winter begin to assert themselves. Overall, the wind speed trends from the past year show that as the seasons change, so does the vigor of the winds, with December offering a brisk reminder of nature's ever-present rhythm.
Weather in Hirado varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Hirado, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January present a gradual transition in weather patterns. In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 22°C (73°F), averaging around 10°C (51°F), with precipitation levels at 74 mm (2.9 in) over approximately 7 days and humidity at 72%. By January, the temperatures drop slightly, with minimums reaching 0°C (32°F) and maximums capped at 19°C (66°F), resulting in an average of 9°C (48°F). Precipitation remains close behind at 64 mm (2.5 in) across about 8 days, while humidity remains steady at 73%. For a more detailed look at January weather, you can check Hirado weather in January.
December and February present a somewhat similar climate with mild temperatures, yet December tends to be slightly warmer. In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 22°C (73°F), with an average of 10°C (51°F). In contrast, February sees a minimum of 0°C (32°F) and a maximum of 19°C (66°F), with an average temperature of 9°C (48°F). Precipitation levels are also noteworthy; December has 74 mm (2.9 in) over 7 days, while February experiences a bit more rainfall at 82 mm (3.2 in) over 10 days. Humidity remains relatively consistent, with December at 72% and February slightly lower at 69%. For more detailed information on February weather, you can check Hirado weather in February.
In comparing December and March weather, December experiences slightly cooler temperatures, with averages ranging from a minimum of 2°C (35°F) to a maximum of 22°C (73°F). In contrast, March sees a modest increase, with minimum temperatures of 4°C (40°F) and maximums reaching 20°C (68°F). Precipitation is notably higher in March, with 137 mm (5.4 in) of rain over 11 days compared to December's 74 mm (2.9 in) over 7 days. Despite the increase in rainfall, humidity levels remain similar, with December at 72% and March at 71%. For more details on the weather in March, you can visit Hirado weather in March.
In December, the weather features a mild range with minimum temperatures around 2°C (35°F) and an average of 10°C (51°F), peaking at 22°C (73°F). The month experiences moderate precipitation, totaling 74 mm (2.9 in) over about 7 days, accompanied by a humidity level of 72%. In contrast, April brings a warmer climate, with minimum temperatures rising to 7°C (46°F) and an average of 16°C (60°F), reaching up to 24°C (76°F) at its highest. This month sees increased rainfall, accumulating 117 mm (4.6 in) across approximately 9 days, and a slight increase in humidity to 79%. For more detailed information, you can check Hirado weather in April.
December and May present contrasting weather patterns. In December, temperatures range from a minimum of 2°C (35°F) to a maximum of 22°C (73°F), with an average of 10°C (51°F). The month is characterized by moderate precipitation, totaling 74 mm (2.9 in) over approximately 7 days, and humidity sits at a comfortable 72%. Conversely, May features milder temperatures with a minimum of 12°C (53°F) and a maximum of 27°C (80°F), averaging 19°C (67°F). However, it experiences significantly higher rainfall, accumulating 165 mm (6.5 in) across about 10 days, and the humidity rises to 87%. For more detailed weather information, you can check Hirado weather in May.
December and June present stark contrasts in weather conditions. In December, temperatures range from a cool minimum of 2°C (35°F) to a more comfortable maximum of 22°C (73°F), with an average temperature of 10°C (51°F). The month sees about 74 mm (2.9 in) of precipitation over 7 days, with a humidity level of 72%. In contrast, June brings much warmer temperatures, with minimums starting at 18°C (64°F) and maximums reaching 29°C (84°F), averaging at 23°C (73°F). This month experiences significantly higher precipitation, totaling 200 mm (7.9 in) over 12 days, and humidity levels soar to 91%. For more detailed information, you can check Hirado weather in June.
December and July present stark contrasts in weather. In December, temperatures range from a cool 2°C (35°F) to a mild 22°C (73°F), with an average of 10°C (51°F). This month sees moderate precipitation of 74 mm (2.9 in) over about 7 days and a humidity level of 72%, creating a crisp but somewhat damp atmosphere. In contrast, July experiences significantly warmer conditions with temperatures varying from a minimum of 20°C (69°F) to a peak of 33°C (92°F) and an average of 26°C (80°F). However, July is also marked by heavy rainfall, accumulating 349 mm (13.7 in) over 17 days, accompanied by high humidity reaching 97%. The differences between these two months highlight the shift from cool and damp winter to warm and wet summer. For more details, check Hirado weather in July.
December and August present strikingly different weather conditions. In December, temperatures range from a chilly minimum of 2°C (35°F) to a comfortable maximum of 22°C (73°F), with an average of 10°C (51°F). The month sees about 74 mm (2.9 in) of precipitation over just 7 days, accompanied by a moderate humidity level of 72%. In contrast, August boasts much warmer temperatures, with a minimum of 21°C (69°F) and a maximum reaching 34°C (94°F), averaging at 28°C (83°F). The summer month experiences significantly higher rainfall at 284 mm (11.2 in) across 14 days, along with a high humidity level of 94%. For more details on August weather, check Hirado weather in August.
In December, the weather is considerably cooler, with temperatures ranging from a minimum of 2°C (35°F) to a maximum of 22°C (73°F), and an average of 10°C (51°F). The month experiences moderate rainfall totaling 74 mm (2.9 in) over about 7 days, accompanied by a humidity level of 72%. In contrast, September is much warmer, with temperatures ranging from a minimum of 19°C (67°F) to a high of 33°C (91°F), averaging around 25°C (77°F). However, it also sees significantly more rainfall, with 228 mm (9.0 in) spread over approximately 15 days and a higher humidity of 84%. For a more detailed look at September weather conditions, you can visit Hirado weather in September.
In comparing the weather between December and October, we observe significant differences in both temperature and precipitation. December experiences cooler temperatures with a minimum of 2°C (35°F) and an average of 10°C (51°F), while October is much warmer, with temperatures ranging from a minimum of 13°C (56°F) to an average of 21°C (69°F). Additionally, October sees higher maximum temperatures, peaking at 30°C (86°F) compared to December's maximum of 22°C (73°F).
Precipitation levels also vary, as December averages 74 mm (2.9 in) over 7 days, while October has more rainfall at 107 mm (4.2 in) across 8 days. Humidity is slightly higher in October at 79%, compared to December's 72%. For a more detailed look at October's climate, you can check out Hirado weather in October.
In December, the weather turns cooler with a minimum temperature dropping to 2°C (35°F) and an average of 10°C (51°F), compared to November, which features milder temperatures with a minimum of 7°C (45°F) and an average of 16°C (60°F). The maximum temperatures in December reach 22°C (73°F), slightly lower than November's peak of 24°C (76°F). Precipitation increases in December, totaling 74 mm (2.9 in) over 7 days, compared to November's 51 mm (2.0 in) on the same number of days. Humidity remains relatively high in both months, with December at 72% and November slightly higher at 75%. For further details, you can check out Hirado weather in November.
As December sets in, Hirado experiences a noticeable shift in weather, with cooler temperatures contrasting the milder months that precede it. The average temperature dips to a crisp 10°C (51°F), making it a time for cozy layers and warm drinks. While rainfall is relatively light at 74 mm over the month, it's notably more frequent than in the previous season, with about seven days of precipitation, contributing to the air's elevated humidity of 72%. This blend of cooler air and moisture creates a unique charm for the island, inviting both residents and visitors to embrace the cozy, atmospheric vibe that December brings. For further insights into the yearly weather patterns, check out Hirado Climate.