Last updated: August 21, 2025
In December, Sai Kung, Hong Kong experiences a mild and pleasant climate, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 27°C (81°F) and an average of 17°C (64°F). This month is characterized by moderate humidity levels of around 69%, creating a comfortable atmosphere for outdoor activities. While the region sees some precipitation, averaging 21 mm (0.8 in) over just three days, the overall weather remains inviting for both locals and visitors seeking to explore its scenic landscapes.
In December, Sai Kung, Hong Kong experiences a notable shift towards cooler temperatures as winter approaches. The month's minimum temperature dips to a refreshing 8°C (46°F), while daytime averages settle around a comfortable 17°C (64°F). With highs reaching up to 27°C (81°F), it's a month where you can enjoy mild temperatures perfect for outdoor activities. This transition from November, which boasts averages of 22°C (72°F), signifies the onset of a crisper climate, inviting visitors to experience the beauty of winter in this picturesque coastal area. As the year comes to a close, the temperature trends not only highlight Sai Kung's mild winters but also create an inviting atmosphere for both locals and tourists alike.
December in Sai Kung, Hong Kong, sees a notable decline in precipitation as the wet season winds down, with an average of just 21 mm (0.8 in) of rain falling over 3 days. This marks a significant decrease compared to the heavier downpours experienced in previous months, especially the peak rainfall of 344 mm (13.5 in) in June and 362 mm (14.2 in) in August. As the calendar year concludes, the transition is evident, with less frequent rain allowing for clearer skies. This shift offers residents and visitors alike a welcome reprieve, enhancing opportunities for outdoor activities while also highlighting the overall trend toward drier conditions in winter months.
In Sai Kung, Hong Kong, December brings a moderate humidity level of 69%, marking a slight dip from the high summer months. This is part of a trend where humidity peaks in the summer, notably reaching 88% in both July and August, before gradually decreasing as the year closes. The cooler months of November and January see humidity levels falling to 64%, while December finds a balance between the extremes of summer and winter. This seasonal shift highlights a transition from the sultry, moisture-laden air of the summer to the more comfortable, crisp conditions of late autumn and early winter.
In Sai Kung, Hong Kong, the UV Index experiences a notable decline as winter approaches, with December showcasing a UV Index of 7, categorized as high. This marks a shift from the extreme levels observed in the summer months, where indices soared to a peak of 14 in May. As you transition from the steamy summer to the cooler winter, December allows for longer safe sun exposure with a burn time of 25 minutes—a relief compared to the swift 10 minutes required during the peak months. While outdoor activities are still enjoyable, it's essential to remain mindful of UV exposure to protect your skin. For more details on UV levels, check out Sai Kung UV Index.
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December in Sai Kung, Hong Kong, brings a delightful culmination to a year filled with abundant sunshine, boasting 264 hours of bright rays. As winter sets in, residents and visitors relish in mild temperatures and beautifully clear skies, making it a perfect time for outdoor adventures. The month showcases a subtle dip from the vibrant summer months, with July and May leading the year at 323 and 301 hours respectively. However, December still holds its own as a charming transition into the cooler season, significantly brighter than the early months of the year. This trend of decreasing daylight hours from summer to winter is mirrored across the previous months, yet December's generous sunshine offers a delightful invitation to soak up the last of the year’s warmth before the new year unfolds.
In Sai Kung, Hong Kong, December typically brings a 51% chance of sunny weather, marking a slight dip from the more sun-drenched months of November, which enjoys a robust 62% sunshine likelihood. As the year transitions into winter, the likelihood of sun decreases gradually, reflected in the months preceding December—particularly the rapid drop in May and June, where the chances plummet to 26% and 12% respectively. Interestingly, while December is not the sunniest month, it does offer a balance of pleasant weather compared to the more overcast summer months. Therefore, if you’re planning outdoor activities, there's still a decent prospect for enjoying the sun in this charming coastal village.
In Sai Kung, Hong Kong, the daylight duration follows a distinct seasonal pattern throughout the year. Starting with 10 hours in January, the days gradually lengthen, reaching a peak of 13 hours from May to July—the height of summer. As the warmer months transition, daylight begins to wane, with hours decreasing steadily to 12 hours in August and September, and further down to 11 hours in October and November. December mirrors January, closing the year with another 10 hours of daylight. This rhythmic shift not only signifies the changing seasons but also invites residents and visitors alike to relish the rich, vibrant days of summer before embracing the quieter, shorter days of winter.
As December settles in Sai Kung, Hong Kong, the winds pick up slightly, averaging 3.5 m/s (8 mph), just a notch above the monthly average of 3.2 m/s (7 mph) seen in November. This subtle increase marks a shift following the calmer summer months, notably July and August, which experience their lightest breezes at around 2.8 m/s (6 mph) and 2.4 m/s (5 mph) respectively. The overall trend showcases the island's variable wind patterns, where the invigorating gusts of winter offer a refreshing contrast to the stillness of the summer heat. With the autumn months averaging lower speeds, the December winds beckon locals and visitors alike, setting a lively backdrop for outdoor adventures amidst the stunning coastal scenery.
Weather in Sai Kung varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Sai Kung, focusing on differences in temperature, rainfall, humidity, and UV levels.
December and January exhibit mild winter weather, with December slightly warmer overall. In December, temperatures range from a minimum of 8°C (46°F) to a maximum of 27°C (81°F), while January sees a slightly cooler range, with a minimum of 6°C (42°F) and a maximum of 25°C (78°F). Precipitation is a bit higher in December at 21 mm (0.8 in) over three days, compared to January's 16 mm (0.6 in) over just two days. Humidity also decreases from December’s 69% to January’s 64%, contributing to a drier feel in the air. For more details, you can check Sai Kung weather in January.
December and February present relatively mild temperatures, with averages around 17°C (64°F) in both months. However, December is slightly warmer overall, with maximum temperatures reaching 27°C (81°F) compared to February's maximum of 26°C (79°F). In terms of precipitation, February is notably wetter, receiving 43 mm (1.7 in) over 6 days, while December sees only 21 mm (0.8 in) across 3 days. Humidity levels remain similar, hovering around 68-69%. For more detailed weather information, you can check Sai Kung weather in February.
December and March showcase distinct weather patterns, with December experiencing milder temperatures ranging from a minimum of 8°C (46°F) to a maximum of 27°C (81°F) and an average of 17°C (64°F). This month sees relatively low precipitation of 21 mm (0.8 in) over just 3 days, contributing to a humidity level of 69%. In contrast, March warms up, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 29°C (85°F), averaging 20°C (69°F). The increase in rainfall is notable, with 59 mm (2.3 in) falling over 11 days and humidity rising slightly to 73%. For more detailed weather information, you can check Sai Kung weather in March.
In December, temperatures are milder with a minimum of 8°C (46°F) and a maximum of 27°C (81°F), while April experiences warmer conditions, with temperatures ranging from a minimum of 13°C (56°F) to a maximum of 31°C (89°F). Precipitation is noticeably higher in April, averaging 93 mm (3.7 in) over 12 days, compared to December's 21 mm (0.8 in) over just 3 days. Despite a slight increase in humidity, from 69% in December to 71% in April, the transition from winter to spring brings a significantly warmer and wetter climate. For more details on April's weather, you can check Sai Kung weather in April.
In December, the weather is generally mild, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 27°C (81°F) and an average of 17°C (64°F). The month typically sees low precipitation levels of 21 mm (0.8 in) over just 3 days, along with a humidity level of 69%. In contrast, May brings significantly warmer temperatures, with a minimum of 16°C (61°F) and a soaring maximum of 35°C (95°F), averaging 26°C (80°F). However, May is also characterized by much higher precipitation, totaling 196 mm (7.7 in) over 21 days, and increased humidity at 79%. For more specific details on May conditions, you can check Sai Kung weather in May.
When comparing the weather in December and June, it's clear that the two months are vastly different. December experiences milder temperatures, with a minimum of 8°C (46°F) and an average of 17°C (64°F), while June basks in warmth with minimum temperatures around 24°C (76°F) and averages reaching 28°C (84°F). Precipitation also diverges dramatically; December sees a mere 21 mm (0.8 in) of rain over just three days, whereas June is significantly wetter, with 344 mm (13.5 in) spread across 26 days. The humidity is higher in June at 77% compared to December's 69%, accentuating the contrast between the two months. For more detailed information on June weather specifically, you can check out Sai Kung weather in June.
December and July exhibit stark contrasts in weather. In December, temperatures range from a mild 8°C (46°F) at night to a warm 27°C (81°F) during the day, with an average of 17°C (64°F). Precipitation is minimal, with only 21 mm (0.8 in) over about three days, and humidity at a comfortable 69%. In contrast, July brings significantly higher temperatures, with a minimum of 25°C (77°F) and a scorching maximum of 36°C (97°F), averaging around 29°C (85°F). Rain is frequent in July, with 213 mm (8.4 in) falling over 26 days, and humidity levels rise to 88%. For details on the July weather in Sai Kung, you can visit Sai Kung weather in July.
When comparing the weather in December and August, it's evident that the two months present contrasting climates. December enjoys milder temperatures, with averages ranging from a minimum of 8°C (46°F) to a maximum of 27°C (81°F), alongside relatively low precipitation of just 21 mm (0.8 in) over three days and humidity at 69%. In contrast, August leads with much warmer temperatures, featuring a minimum of 25°C (77°F) and reaching up to 36°C (97°F) for averages. This month sees significant rainfall, with a total of 362 mm (14.2 in) spread over 26 days, resulting in higher humidity levels at 88%. For more detailed information, you can check Sai Kung weather in August.
When comparing the weather in December and September, it’s clear there are striking differences. December enjoys milder temperatures, with a minimum of 8°C (46°F), an average of 17°C (64°F), and a maximum of 27°C (81°F), along with relatively low precipitation of 21 mm (0.8 in) spread over just 3 days. In contrast, September experiences much warmer conditions, boasting a minimum temperature of 24°C (75°F), an average of 28°C (83°F), and reaching highs of 34°C (94°F). However, it is also the wettest month, with a significant 215 mm (8.5 in) of rainfall over 22 days. Humidity is slightly higher in September at 75%, compared to December's 69%. For more detailed information, check out Sai Kung weather in September.
When comparing the weather in December and October, notable differences emerge. December sees milder temperatures, with a minimum of 8°C (46°F) and an average of 17°C (64°F), compared to October's warmer range, which includes a minimum of 16°C (60°F) and an average of 25°C (78°F). Additionally, October experiences significantly more rainfall, totaling 161 mm (6.3 in) over 10 days, whereas December has only 21 mm (0.8 in) across 3 days. Humidity levels remain relatively similar, with December at 69% and October slightly lower at 65%. For a more detailed look at October's weather patterns, you can visit Sai Kung weather in October.
December weather features a noticeable drop in minimum temperatures, with lows averaging 8°C compared to November's milder minimum of 14°C. While December presents a slightly lower average temperature of 17°C compared to November's 22°C, it experiences less humidity at 69%, compared to November's 64%. Precipitation in December is also reduced, with only 21 mm over three days, whereas November sees 29 mm over four days. For a more detailed comparison, you can view the specifics in this link: Sai Kung weather in November.
As December rolls into Sai Kung, the weather transforms into a refreshing respite from the year’s heat, boasting cooler temperatures and lower humidity levels. This month is particularly pleasant, offering a balance of comfortable daytime warmth and brisk evenings, allowing residents and visitors alike to enjoy the stunning outdoor scenery without the oppressive heat of the summer months. With only a few days of light rain, December stands out as a drier period compared to the wetter months earlier in the year. For those looking to experience Sai Kung’s beauty, December's climate serves as an inviting backdrop. Discover more about the unique aspects of Sai Kung’s climate by visiting Sai Kung Climate.