January Weather in Hong Kong, Hong Kong

Last updated: August 21, 2025

January in Hong Kong is characterized by mild temperatures and relatively low humidity, making it a pleasant time to explore the city. With daytime maximums reaching 24°C (75°F) and an average temperature of 17°C (63°F), visitors can enjoy comfortable weather. Nights can be cooler, dipping to a minimum of 8°C (46°F). Rainfall is minimal, averaging only 21 mm (0.8 in) over about 4 days, which means the majority of the month remains dry. Overall, January offers a refreshing climate perfect for leisurely outdoor activities amidst the vibrant urban landscape.

January Temperature in Hong Kong

In January, Hong Kong experiences a mild winter, with temperatures ranging from a cool 8°C (46°F) at night to a pleasant 24°C (75°F) during the day. The average temperature hovers around 17°C (63°F), making it one of the more comfortable winter months. As the months progress into February, the temperature slightly drops, maintaining the same average but with min and max fluctuations of 7°C (45°F) and 24°C (76°F) respectively. The weather begins to warm up noticeably in March, anticipating spring with lows of 12°C (54°F) and highs reaching 27°C (80°F). This upward trend continues as April transitions to a balmy 29°C (85°F), peaking at 14°C (58°F) during the night. Twists and turns in the climate become evident as May kicks off the summer season, with minimums rising to 18°C (64°F) and maximums soaring to a sizzling 33°C (92°F). The trend toward warmer days persists throughout the summer months, peaking in August with temperatures consistently above 30°C (86°F). By December, the winter chill returns, bringing with it a refreshing respite with minimums down to 10°C (49°F), yet overall, January remains a cozy haven nestled between the vigor of autumn and the sweltering heat of summer.

January Weather in Hong Kong: Daily Temperature Highs, Lows, and Averages

The chart illustrates January temperature patterns in Hong Kong, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Hong Kong, January typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec636369737983848382787265
Data source: Temperature data for Hong Kong generated using information from the Copernicus Climate Change Service.
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The average of daily temperatures (24 hours) calculated across all days in the month.

January Precipitation in Hong Kong

In January, Hong Kong experiences relatively low precipitation, with only 21 mm (0.8 in) recorded over just 4 days. This sets the stage for a dry start to the year, as rainfall begins to increase steadily in February and March. By April, the wet season begins to gain momentum, culminating in a peak during the summer months, particularly in August, where a significant 384 mm (15.1 in) falls over 25 days. The pattern clearly illustrates that January serves as a precursor to the more deluge-prone months ahead, highlighting the transition from the dry winter season to the wetter, more humid climate that characterizes Hong Kong’s summer.

January Precipitation Trends in Hong Kong

The chart displays monthly precipitation patterns in Hong Kong, with values for each month alongside January’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how January’s conditions compare to those of other months. In Hong Kong, January typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec215260931713252193842231893631
Data source: Precipitation data for January generated using information from the Copernicus Climate Change Service.
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January Humidity in Hong Kong

In January, humidity in Hong Kong sits at a comfortable 64%, marking the beginning of a gradual increase that peaks during the summer months. As the year progresses, humidity levels rise consistently, culminating in a rather sticky 88% in both July and August. Interestingly, following this peak, a noticeable decline occurs, with humidity dropping back down to 65% by October and settling at 64% in November, indicating a seasonal rhythm. This trend reflects a typically humid subtropical climate, where residents can expect the air to gradually grow more humid as winter fades, and summer approaches, before finally easing off towards the end of the year.

January Average Humidity in Hong Kong

This chart illustrates the average monthly humidity levels in Hong Kong, with January’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In January, average humidity in Hong Kong is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec64%68%73%71%79%77%88%88%75%65%64%69%
Data source: Humidity data for January generated using information from the Copernicus Climate Change Service.

January UV Index in Hong Kong

In January, Hong Kong experiences a UV Index of 7, categorized as high, indicating that sun exposure warrants some caution with a burn time of approximately 25 minutes. This level of UV radiation is relatively mild compared to the subsequent months, where the index dramatically rises. By February, it escalates to a very high index of 10, and as spring approaches, March ushers in an extreme UV Index of 12 that sustains through April and May, with a peak index of 14 in May. The intense sun continues to dominate the summer months, remaining at 13 from June through August, before slightly declining in September and October. Notably, November and December offer a slight reprieve, returning to high levels by year's end, mirroring January's UV conditions. Overall, it's crucial to stay informed and prepared during these heightened UV periods. For more information, visit Hong Kong UV Index.

Maximum UV Index Levels in Hong Kong for January

The chart shows the monthly maximum UV Index (UVI) for Hong Kong in January, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In January, the maximum UV index in Hong Kong typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec710121214131313121197
Data source: Hong Kong January UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

January Sunshine in Hong Kong

January in Hong Kong sees 216 hours of sunshine, marking the beginning of a year where daylight steadily increases. As the months progress into February and March, sunshine hours rise to 251 and 274 respectively, heralding the transition into a more vibrant spring. April continues this trend with 263 hours, while May shines brightly with 301 hours, showcasing the city's delightful weather. The peak arrives in July when Hong Kong basks in an impressive 323 hours of sunlight, providing a perfect backdrop for summer activities. Although sunshine slightly dips in August and September to 280 and 288 hours, the golden streak continues into October and November with 280 and 262 hours, before closing the year in December with a resilient 264 hours. This progression reflects the city’s seasonal rhythm, where each month offers a unique blend of warmth and light.

Monthly Sunshine Duration in Hong Kong: January Highlighted

The January sunshine duration represents the total number of hours Hong Kong experiences direct sunlight during the month of January, excluding cloudy or obstructed periods. This chart compares the sunshine duration of January with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec216h251h274h263h301h274h323h280h288h280h262h264h
Data source: Hong Kong January Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Hong Kong During January

In January, Hong Kong enjoys a 61% chance of sunny weather, making it one of the brighter months of the year. This relatively high probability of sunshine is in stark contrast to the summer months, where the chance plummets to a mere 12% in June and only 15% in August. Interestingly, as we transition into the colder months, the likelihood of sunny days begins to rise again, peaking slightly higher in November at 62%. Overall, January stands out as one of the best times to soak up the sun in Hong Kong, making it an ideal month for outdoor activities before the humidity kicks in during the spring and summer.

Percentage of Sunny Days in January in Hong Kong

The chart illustrates the percentage of sunny days in Hong Kong throughout the year, with January highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Hong Kong experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec61%60%43%42%30%12%31%15%45%36%62%50%
Data source: Hong Kong January chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Hong Kong in January

In January, Hong Kong enjoys about 10 hours of daylight, marking the start of the year with a serene yet crisp ambiance. As the months progress, daylight gradually increases, reaching a peak with 13 hours in both May and June. This increase allows for longer evenings, perfect for outdoor activities and enjoying the vibrant city life. However, after the summer months, daylight begins to taper off, returning to 12 hours in August and September before dwindling back to 11 hours by October and settling at 10 hours again in December. This rhythmic shift in daylight not only enhances the natural beauty of Hong Kong but also showcases the seasonal transition that captivates both residents and visitors alike.

Average Daylight Hours in Hong Kong for January

The chart illustrates the variation in daylight duration in Hong Kong throughout the year, with January highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec10h 55m11h 23m12h 1m12h 39m13h 11m13h 27m13h 19m12h 51m12h 14m11h 36m11h 3m10h 46m
Data source: Hong Kong daylight hours, calculated by summing the hours between sunrise and sunset for each day.

January Winds in Hong Kong

In January, Hong Kong greets the new year with a refreshing average wind speed of 5.1 m/s (11 mph), making it one of the breezier months. As winter sets in, the winds begin to calm slightly in February and March, dropping to 4.4 m/s and 4.7 m/s respectively, creating a softer atmosphere perfect for outdoor exploration. However, as April approaches, the winds stabilize around 4.6 m/s, leading into the warmer months. A notable decline is observed from May to August, where the wind speeds dip to their annual lows, with August recording a gentle 3.4 m/s (8 mph). As summer transitions to autumn, relief comes in the form of increased wind speeds, peaking in October at a robust 6.4 m/s (14 mph), before tapering off again into November and December. Overall, January stands out as a lively month, with winds that invigorate the city's vibrant atmosphere as residents and visitors alike embrace the cool, fresh air.

Average January Wind Speed in Hong Kong

The chart displays monthly wind speed patterns in Hong Kong, with values for each month shown alongside January's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how January's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec5.1 m/s4.44.74.63.74.23.83.43.26.44.95.6
Data source: Hong Kong January wind data, generated using information from the Copernicus Climate Change Service.

How January Weather in Hong Kong Compares to Other Months

Weather in Hong Kong varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Hong Kong, focusing on differences in temperature, rainfall, humidity, and UV levels.

In comparing the weather between January and February, both months exhibit mild temperatures, with January averaging around 17°C (63°F) and February slightly warmer at an average of 17°C (64°F). The maximum temperatures remain similar, peaking at 24°C (75°F) in January and 24°C (76°F) in February. However, February tends to be wetter, receiving 52 mm (2.0 in) of precipitation over 7 days compared to January's 21 mm (0.8 in) over just 4 days. Additionally, humidity levels increase slightly from 64% in January to 68% in February. For more detailed information, visit Hong Kong weather in February.

In January, the weather is generally mild, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 24°C (75°F) and an average of 17°C (63°F). The month experiences relatively low precipitation of 21 mm (0.8 in) over just four days, along with a humidity level of 64%. In contrast, March brings warmer temperatures, with a minimum of 12°C (54°F) and a maximum reaching 27°C (80°F), averaging at 21°C (70°F). However, it is also wetter, with 60 mm (2.4 in) of precipitation spread over ten days and a slight increase in humidity to 73%. For more detailed information, check out Hong Kong weather in March.

The weather in January showcases milder temperatures, with an average of 17°C (63°F) and maximum highs reaching 24°C (75°F). This month experiences relatively low precipitation at 21 mm (0.8 in) over just four days, coupled with a humidity level of 64%. In contrast, April brings a noticeable increase in both warmth and moisture, with average temperatures of 23°C (73°F) and maximums soaring to 29°C (85°F). However, April also sees higher rainfall, totaling 93 mm (3.7 in) across 12 days, alongside a slight rise in humidity to 71%. For more details about the specific weather conditions during this time, you can check Hong Kong weather in April.

In January, the weather is relatively mild, with temperatures ranging from a minimum of 8°C to a maximum of 24°C. The average temperature sits around 17°C, accompanied by low precipitation of just 21 mm over four days and a humidity level of 64%. In contrast, May brings significantly warmer conditions, with temperatures soaring to a maximum of 33°C and an average of 26°C. However, May also sees increased precipitation, totaling 171 mm across 18 days, along with higher humidity at 79%. This stark contrast highlights the shift from the cooler, drier January to the hot, humid days of May. For more detailed information, check out Hong Kong weather in May.

In January, the weather is mild with average temperatures ranging from a minimum of 8°C (46°F) to a maximum of 24°C (75°F). This month experiences relatively low precipitation, with only 21 mm (0.8 in) over four days and humidity at 64%. In contrast, June brings significantly warmer temperatures, with an average between 24°C (76°F) and 33°C (91°F). The month is much wetter, with precipitation reaching 325 mm (12.8 in) across 24 days, accompanied by higher humidity levels at 77%. For a closer look at June's weather conditions, you can visit Hong Kong weather in June.

In January, the weather in Hong Kong is mild, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 24°C (75°F), accompanied by relatively low humidity at 64%. Precipitation is minimal, with only 21 mm (0.8 in) recorded over just 4 days. In contrast, July brings a much warmer climate, with temperatures soaring between 25°C (78°F) and 33°C (92°F) and an average temperature of 29°C (84°F). The humidity increases significantly to 88%, and the region experiences substantial rainfall, with 219 mm (8.6 in) over 24 days. For more detailed insights, you can check Hong Kong weather in July.

In comparing the weather of January and August, one can observe striking contrasts. January experiences milder temperatures, with a minimum of 8°C (46°F) and an average of 17°C (63°F), making it a much cooler month overall. In contrast, August is significantly warmer, with temperatures ranging from a minimum of 26°C (78°F) to a maximum of 34°C (93°F), resulting in an average temperature of 28°C (83°F). While January sees relatively low precipitation of 21 mm (0.8 in) over just 4 days, August is characterized by heavy rainfall, totaling 384 mm (15.1 in) spread across 25 days. Furthermore, August's humidity level is quite high at 88%, compared to January's 64%. For a detailed look at the weather patterns, you can visit Hong Kong weather in August.

January and September present strikingly different weather conditions. In January, temperatures range from a minimum of 8°C (46°F) to a maximum of 24°C (75°F), with a relatively low average of 17°C (63°F) and only 21 mm of precipitation over 4 days. The humidity sits at a comfortable 64%. In contrast, September boasts significantly warmer temperatures, with a minimum of 24°C (76°F) and an average of 28°C (83°F) reaching up to a sweltering 32°C (91°F). However, September experiences much higher precipitation, totaling 223 mm (8.8 in) over 22 days, coupled with higher humidity at 75%. For more details on September weather, you can check Hong Kong weather in September.

In January, the weather in Hong Kong is mild, with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 24°C (75°F), averaging around 17°C (63°F). The month sees relatively low precipitation, with just 21 mm (0.8 in) over approximately 4 days, and a humidity level of 64%. In contrast, October boasts significantly warmer temperatures, with nighttime lows of 17°C (64°F) and daytime highs reaching up to 32°C (91°F), averaging 26°C (78°F). However, it experiences much more rain, totaling 189 mm (7.4 in) across about 10 days, and slightly higher humidity at 65%. For a more detailed look at October weather, you can visit Hong Kong weather in October.

In January, the weather tends to be milder with temperatures ranging from a minimum of 8°C (46°F) to a maximum of 24°C (75°F), averaging at about 17°C (63°F). Rainfall is relatively light, totaling 21 mm (0.8 in) over four days, and the humidity stands at 64%. In contrast, November experiences warmer temperatures, with a minimum of 16°C (60°F) and a maximum of 28°C (82°F), averaging 22°C (72°F). Although it is slightly wetter, with 36 mm (1.4 in) of precipitation also spread over four days, the humidity remains consistent at 64%. For more detailed information on November weather, you can visit Hong Kong weather in November.

In January, the weather is slightly cooler compared to December, with minimum temperatures dropping to 8°C (46°F) and maximums reaching 24°C (75°F). The average temperature in January sits at 17°C (63°F), while December enjoys a milder average of 18°C (65°F) along with slightly warmer maximum temperatures of 26°C (78°F). Additionally, January experiences less precipitation at 21 mm (0.8 in) over 4 days, in contrast to December's 31 mm (1.2 in), which also falls over the same number of days. The humidity is also slightly lower in January at 64%, compared to December's 69% humidity. For more information on the weather conditions in December, you can visit Hong Kong weather in December.

Compare Hong Kong's Climate with Cities Worldwide

Conclusion: What to Expect From January Weather in Hong Kong

As you explore January weather in Hong Kong, you'll find it distinctively cooler compared to the sultry summer months. With an average temperature around a crisp 17°C (63°F), January offers a refreshing break, featuring delightful sunny days and comfortable evenings. Unlike the humid summer, this month experiences relatively low humidity levels at 64%, making it a perfect time for outdoor activities. Though there may be some light rain, with average precipitation of 21 mm across just a few days, January guarantees more sunshine and less rain than many other months. Embrace the season and consider discovering more about the city's climate through this link: Hong Kong Climate.