Last updated: August 21, 2025
December in Narita, Japan offers a blend of crisp and mild weather, perfect for enjoying the city's winter charm. With a maximum temperature of 21°C (71°F) and an average of 8°C (46°F), residents and visitors experience a refreshing chill, while nighttime lows can dip to -3°C (27°F). The month sees around 71 mm (2.8 in) of precipitation spread across 8 days, contributing to the lush, winter scenery. Additionally, humidity levels hover around 72%, adding a touch of moisture to the cool air, making December a unique month for exploring Narita's beautiful landscapes and seasonal festivities.
In December, the temperatures in Narita, Japan start to dip as winter sets in, reflecting a significant shift from the milder autumn months. With a minimum temperature of -3°C (27°F) and an average of 8°C (46°F), it’s a time when warm clothing becomes essential. Daytime highs can reach up to 21°C (71°F), creating a cool yet occasionally pleasant atmosphere as the year wraps up. This month marks a transition where the crispness of winter begins to take hold, as the chilly evenings contrast with the warmer days, offering a unique blend of seasonal experiences. Overall, December in Narita showcases a gradual descent into the colder months, hinting at the depth of winter to come.
In December, Narita experiences a notable shift in precipitation, with an average of 71 mm (2.8 in) over 8 days of rain. This amount, while lower than the peak seen in October at 254 mm, reflects a more temperate pattern as the year winds down. December's rains can be a welcome contrast to the drier months preceding it, providing necessary moisture before the chill of winter sets in. As the final month of the year, it showcases a blend of weather influences, hinting at the transition towards the drier months of January and February. This trend emphasizes the seasonal rhythm of Narita, where rainfall gradually decreases, paving the way for cooler, clearer days ahead.
In December, Narita, Japan experiences a humidity level of 72%, a slight decrease from the higher figures seen in the summer months. As the year progresses, humidity levels shift significantly, peaking at a sweltering 94% in July before gradually declining. The transition into winter sees a dip from the lush humidity of late spring, which reaches an average of 81% in May, down to the more moderate December figures. Throughout the year, the pattern showcases a general trend of increasing humidity from the drier winter months of January and February, leading up to the intense summer, before tapering off again in the fall. This natural ebb and flow make December a comfortable time in Narita, with humidity levels that still hold a touch of warmth as the year draws to a close.
In December, Narita, Japan experiences a moderate UV Index of 4, resulting in a burn time of approximately 30 minutes. This reflects a slight decrease compared to the peak summer months, where the UV Index soared to 11, categorized as extreme, with a burn time of just 10 minutes. After a gradual decline from the high indices of May to September, December brings a more forgiving level of sun exposure. However, it's crucial for residents and visitors to remain vigilant, as the moderate UV levels can still impact skin health with prolonged exposure. For a detailed understanding of UV levels throughout the year, visit Narita UV Index.
UV Risk Categories
In December, Narita, Japan, basks in a delightful 221 hours of sunshine, wrapping up a year that showcases fantastic variations in daylight. From a modest 187 hours in January, the sun's presence steadily climbs, peaking in the vibrant month of August with a dazzling 302 hours. As the seasons shift, the hours begin to decline, but December still enjoys a generous amount of sunlight compared to earlier months, creating a bright backdrop for holiday festivities. This trend highlights not only the beauty of Narita's climate but also the gradual transition from the warm summer glow to the cooler, yet still radiant, winter days.
When considering the likelihood of sunny weather in December in Narita, Japan, there’s a noticeable trend of increasing sunshine as the year draws to a close. With a 63% chance of sun, December stands out as one of the brighter months in contrast to the lower percentages seen during late spring and summer. As the year progresses, we can observe a steady rise, particularly prominent from November's 58% to December's higher ratio. This trend hints at a delightful close to the year, where residents and visitors can look forward to relatively sunny days as winter settles in.
As the year unfolds in Narita, Japan, daylight duration follows a rhythmic pattern, showcasing nature's changing seasons. Starting the year at 10 hours in both January and February, daylight begins to stretch with the arrival of spring, reaching its peak in May and June at an impressive 14 hours. The longer days continue through summer, gradually tapering off in late August as the sun sets earlier. By the time December rolls around, the daylight dwindles to just 9 hours, marking the shortest days of the year. This gradual progression from longer to shorter daylight not only mirrors the changing seasons but also sets the stage for winter's cozy charm.
In December, Narita, Japan experiences a subtle return to average wind speeds of 3.2 m/s (7 mph), reminiscent of the calmer conditions seen earlier in the winter months. This gentle breeze, while slightly less vigorous than the peaks of April and May, provides a tranquil backdrop as the year draws to a close. Notably, June and July marked the low point for wind, with speeds falling to 2.9 m/s (6 mph) and 2.6 m/s (6 mph), respectively, but the end of the year shows a steady increase from November's 2.8 m/s (6 mph). Overall, the December winds in Narita evoke a sense of serene transition, bridging the vibrant gusts of autumn with the stillness of winter.
Weather in Narita varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Narita, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January in this region showcase a transition in winter weather characteristics. December typically experiences a milder climate, with temperatures ranging from a minimum of -3°C (27°F) to a maximum of 21°C (71°F) and an average of 8°C (46°F). It also sees more precipitation, with around 71 mm (2.8 in) over 8 days and a humidity level of 72%.
In contrast, January's temperatures drop slightly, with a minimum of -6°C (21°F) and a maximum of 17°C (64°F), leading to a cooler average of 5°C (42°F). Precipitation decreases to 52 mm (2.1 in) occurring over just 6 days, while humidity remains relatively stable at 70%. For a detailed look at January weather specifics, you can visit Narita weather in January.
In December, temperatures typically range from a chilly -3°C (27°F) at night to a pleasant 21°C (71°F) during the day, with an average temperature of 8°C (46°F). The month sees about 71 mm (2.8 in) of precipitation spread over 8 days, accompanied by a humidity level of 72%. In contrast, February also experiences nighttime lows of -3°C (28°F) but has a slightly cooler average temperature of 6°C (44°F) and daytime highs of 20°C (68°F). Precipitation in February is less, totaling around 46 mm (1.8 in) over the same 8 days, with humidity at a marginally lower 69%. This indicates that while both months share similar nighttime temperatures, February's overall weather is slightly cooler and drier. For more specifics about February weather in this region, check out Narita weather in February.
In December, temperatures typically range from a minimum of -3°C (27°F) to a maximum of 21°C (71°F), with an average of 8°C (46°F). The month experiences around 71 mm (2.8 in) of precipitation over approximately 8 days, coupled with a humidity level of 72%. In contrast, March features a slightly milder climate, with minimum temperatures around -1°C (31°F) and maximums reaching 23°C (74°F), averaging at 10°C (51°F). However, it sees more precipitation, totaling 136 mm (5.4 in) spread over 13 days, while maintaining a lower humidity of 68%. For those interested in specifics, you can visit Narita weather in March for more details.
When comparing the weather in December and April, there are notable differences in temperature and precipitation. December typically sees a minimum temperature of -3°C (27°F) and an average of 8°C (46°F), peaking at 21°C (71°F). In contrast, April features a milder range with a minimum of 2°C (36°F), an average of 14°C (58°F), and a maximum of 27°C (81°F). Precipitation is also higher in April, with 116 mm (4.6 in) over 11 days, compared to December's 71 mm (2.8 in) across 8 days. Humidity remains relatively consistent between the two months, with December at 72% and April slightly higher at 73%. For more detailed information about the weather in April, you can check Narita weather in April.
December and May present contrasting weather profiles, illustrating the stark seasonal changes. In December, temperatures range from a chilly minimum of -3°C (27°F) to a comfortable average of 8°C (46°F), with maximums reaching 21°C (71°F). The month experiences moderate precipitation of 71 mm (2.8 in) over 8 days and a humidity level of 72%. In contrast, May sees significantly milder temperatures, with a minimum of 8°C (47°F), an average of 19°C (67°F), and highs peaking at 32°C (90°F). Precipitation in May increases to 128 mm (5.0 in) across 12 days, accompanied by a slightly higher humidity level of 81%. For more information, you can check Narita weather in May.
December and June present contrasting weather experiences. In December, temperatures tend to be cool, ranging from a minimum of -3°C (27°F) to a maximum of 21°C (71°F), with an average of 8°C (46°F). The month sees approximately 71 mm (2.8 in) of precipitation over about 8 days, coupled with a humidity level of 72%. In stark contrast, June offers a warm and humid climate, with temperatures fluctuating from a minimum of 15°C (60°F) to a maximum of 33°C (91°F) and an average of 22°C (72°F). This month is characterized by higher rainfall, totaling around 161 mm (6.3 in) over 13 days, and a humidity level soaring to 88%. For a closer look at June's weather specifics, check out Narita weather in June.
December and July exhibit strikingly different weather characteristics. In December, temperatures range from a chilly -3°C (27°F) to a maximum of 21°C (71°F), with an average temperature of 8°C (46°F). This month sees a moderate level of precipitation, totaling 71 mm (2.8 in) over about 8 rainy days, accompanied by a humidity of 72%. In contrast, July offers a much warmer climate, with minimum temperatures starting at 18°C (65°F) and soaring to highs of 36°C (98°F), bringing an average of 26°C (79°F). July is also significantly wetter, receiving 223 mm (8.8 in) of precipitation spread across 17 days, and has higher humidity levels at 94%. For more detailed insights, you can explore Narita weather in July.
In December, temperatures in the region can drop to as low as -3°C (27°F), with an average of 8°C (46°F) and a maximum of 21°C (71°F). The month sees an average of 71 mm (2.8 in) of precipitation, spread over about 8 days, and the humidity hovers around 72%. In contrast, August presents a much warmer climate, with temperatures ranging from a minimum of 18°C (64°F) to a scorching maximum of 36°C (97°F) and an average of 28°C (82°F). This month experiences greater rainfall, totaling 102 mm (4.0 in) over approximately 14 days, coupled with higher humidity at 87%. The stark difference in weather between December and August highlights the seasonal contrast typical for the region. For more specific details about August weather, check out Narita weather in August.
In December, the weather tends to be much colder and drier compared to September. While December boasts lower temperatures with an average of 8°C (46°F) and maximums reaching only 21°C (71°F), September features a significantly warmer climate with averages around 24°C (75°F) and highs soaring to 35°C (94°F). Additionally, December experiences less rainfall, receiving 71 mm (2.8 in) over about 8 days, whereas September is considerably wetter with 186 mm (7.3 in) spread across 17 days. The humidity remains relatively high in both months, recorded at 72% in December and 83% in September, contributing to the overall feeling of both seasons. For more insights on September weather, you can check out Narita weather in September.
December and October exhibit striking differences in weather patterns. While October boasts a relatively warm average temperature of 19°C (66°F) with highs reaching up to 31°C (88°F), December cools down significantly, with an average temperature of only 8°C (46°F) and maximums peaking at 21°C (71°F). Precipitation levels also vary greatly; October experiences a substantial 254 mm (10.0 in) over 14 days, making it the wetter month, compared to December's more moderate 71 mm (2.8 in) over just 8 days. Additionally, the humidity in October (78%) is slightly higher than in December (72%), contributing to a different overall feel in the air. For more information on October weather, you can check Narita weather in October.
In December, the weather experiences a noticeable chill compared to November, with minimum temperatures potentially dropping to -3°C (27°F) and an average of 8°C (46°F). In contrast, November maintains milder conditions, featuring minimum temperatures around 3°C (37°F) and averaging 14°C (57°F). While December has a maximum temperature of 21°C (71°F), it is generally cooler than November's peak of 23°C (75°F). Precipitation also decreases slightly from November's 101 mm (4.0 in) over 10 days to December's 71 mm (2.8 in) over 8 days, although humidity remains relatively consistent, with December at 72% compared to November's 74%. For a closer look at the weather specifics for November, check out Narita weather in November.
As December settles in, Narita experiences a notable shift in weather patterns compared to the milder months preceding it. With temperatures dipping, the month features a cooler average alongside the occasional chill that can bring nighttime lows to uncomfortably low levels. Additionally, December sees an increase in precipitation, contributing to a moisture-laden environment, while the humidity remains relatively steady, making it feel even colder. Those visiting during this time should prepare for a mix of crisp days and unexpected rainfall, perfectly encapsulating the transition into winter. For a deeper understanding of how December's weather contrasts with the rest of the year, check out Narita Climate.