Last updated: August 21, 2025
In December, Haikou, China experiences a mild yet varied climate, with temperatures ranging from a maximum of 28°C (83°F) to a chilly minimum of -2°C (28°F). The month sees an average temperature of around 9°C (48°F), making it a unique time for both locals and visitors. While the city enjoys relatively low precipitation at 38 mm (1.5 in) over 8 wet days, humidity remains high at 78%, contributing to a damp atmosphere. Exploring Haikou during this month offers a refreshing escape with the potential for intriguing weather experiences.
In December, Haikou, China experiences a notable shift as temperatures begin to cool, marking the arrival of winter. The month opens with minimum temperatures dipping to -2°C (28°F), contrasting with the more temperate conditions of the preceding months. The average temperature hovers around 9°C (48°F), offering a crisp but manageable climate for exploration. Maximum temperatures still reach a pleasant 28°C (83°F), allowing for comfortable afternoons despite the chill of the mornings and evenings. This delightful mix of cooler lows and warm highs characterizes December as a transitional month, hinting at the vibrant spring that follows.
In December, Haikou experiences a notable drop in precipitation, receiving only 38 mm (1.5 inches) of rain over about 8 days, marking the end of a wetter season. This decrease is part of a broader trend as the city transitions from the heavy rains of summer, which peak in June with 309 mm and 20 rainy days, to drier winter months. While December marks the tail end of the wet season, the precipitation levels suggest a shift towards cooler and sunnier weather, making it a more enjoyable time for outdoor activities. Despite the reduced rainfall, December still holds its own, providing ample opportunities to bask in Haikou's mild winter climate.
In December, Haikou experiences a relatively moderate humidity level of 78%, providing a refreshing contrast to the peak months of summer. As the year progresses from January’s 65% to December, humidity tends to rise steadily, reaching its zenith in July at 91%. Following this peak, the humidity gradually decreases, with a slight drop in September and a more pronounced decline leading into winter. By December, the humidity begins to stabilize, hovering around the higher levels felt in late spring and early fall, making it an ideal time for those seeking to enjoy a more temperate climate while still embracing the characteristic moisture of this tropical locale.
In December, Haikou experiences a notable decrease in the UV Index, dipping to 5, which falls into the moderate exposure category. This reduction provides a more forgiving environment for outdoor activities compared to the preceding months. For instance, from April through November, the UV Index peaked at levels categorized as extreme and very high, necessitating shorter burn times of just 10 to 15 minutes. However, with the arrival of December, the burn time extends to 30 minutes, allowing residents and visitors alike to enjoy outdoor pursuits with slightly reduced risk. This trend reflects a gradual easing into the cooler winter months, making it an ideal time to explore Haikou's scenic landscapes. For more insights on UV levels throughout the year, visit Haikou UV Index.
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In Haikou, China, December brings a gentle descent in sunshine hours, tallying 197 hours—a modest dip from the vibrant summer months. This time of year marks a transition as the city shifts from its sun-drenched peaks in July and August, which boast a brilliant 269 and 294 hours respectively, to the calmer light of late autumn and winter. Despite this decline, December still offers a warm and inviting atmosphere, with plenty of sunlight lingering through the crisp air. The trend illustrates a consistent pattern of decreasing daylight as the year winds down, yet December shines brightly compared to earlier months like January and November, ensuring residents and visitors alike can still bask in the pleasant tropical glow.
In December, Haikou experiences a 50% chance of sunny weather, making it one of the more promising months for sunshine compared to the preceding months. As the year winds down, the likelihood of basking in the sun significantly increases from the lower odds found during the peak summer months, where chances plummet to around 11-14%. The trend suggests a gradual recovery of sunny days starting from the previous month, November, which holds a 36% chance. This upward shift gives hopeful travelers a splendid opportunity to enjoy the mild winter weather, with clear skies enhancing the charm of Haikou's vibrant landscape.
In Haikou, China, the daylight duration exhibits a captivating rhythm throughout the year, reaching its peak during the warm summer months. Starting with 10 hours in January and December, the days gradually lengthen to a delightful 13 hours by mid-year, peaking in May through August. As autumn approaches, daylight gradually diminishes, dropping to 12 hours in September and returning to 10 hours by November. This annual cycle showcases a distinctive trend of increasing daylight in spring and summer, followed by a gentle retreat as the year concludes, inviting residents to revel in the vibrant energy of longer days while also embracing the cozy charm of shorter winters.
In December, Haikou experiences a gentle breeze, with an average wind speed of 1.6 m/s (3 mph), maintaining the trend of mild conditions seen throughout the preceding months. As the year draws to a close, the wind speeds reflect a slight dip compared to the more robust winds of early winter, like those in January and July, which both clock in at 1.8 m/s (4 mph). Overall, December aligns with the calmer character of the region during late fall, where the air feels refreshingly light, offering a serene backdrop to the city's vibrant end-of-year celebrations. This consistent yet mild wind pattern invites both residents and visitors to enjoy the outdoor beauty of Haikou before the new year begins.
Weather in Haikou varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Haikou, focusing on differences in temperature, rainfall, humidity, and UV levels.
In December, the weather features a wider temperature range with minimums reaching -2°C (28°F) and maximums peaking at 28°C (83°F), resulting in a comfortable average of 9°C (48°F). The month experiences 38 mm (1.5 in) of precipitation over 8 days, with humidity levels at 78%. In contrast, January sees a slight dip in temperatures, with minimums dropping to -5°C (24°F) and maximums at 26°C (79°F), leading to an average temperature of 8°C (46°F). This month also has increased precipitation at 44 mm (1.7 in) over just 7 days, but the humidity is lower at 65%. For more detailed insights, check out Haikou weather in January.
In comparing the weather between December and February, both months showcase a similar average temperature of 9°C (48°F), though February experiences slightly cooler minimum temperatures, dipping to a low of -5°C (22°F) compared to December’s -2°C (28°F). While maximum temperatures remain consistent, peaking at around 28°C (82°F to 83°F), February tends to be wetter, with precipitation increasing to 65 mm (2.6 in) over 9 days, in contrast to December's 38 mm (1.5 in) over 8 days. Additionally, February displays a lower humidity level at 71%, compared to December's 78%. For a more detailed look at climate specifics, you can visit Haikou weather in February.
In December, temperatures in Haikou range from a chilly minimum of -2°C (28°F) to a warm maximum of 28°C (83°F), with an average of 9°C (48°F). The month experiences relatively low precipitation, totaling 38 mm (1.5 in) over about 8 days, and humidity levels hover around 78%. In contrast, March ushers in milder conditions with minimum temperatures at 0°C (33°F) and averages rising to 13°C (56°F) before peaking at 31°C (88°F). However, March is considerably wetter, receiving 122 mm (4.8 in) of rainfall over approximately 15 days and showing slightly higher humidity at 81%. For more detailed information, check out Haikou weather in March.
December and April exhibit distinct weather characteristics. In December, temperatures range from a chilly minimum of -2°C (28°F) to a warm maximum of 28°C (83°F), with an average of 9°C (48°F). The month is relatively dry with a total precipitation of 38 mm (1.5 in) over 8 days, and humidity levels sit at 78%. In contrast, April brings significantly milder conditions, with temperatures varying from a minimum of 3°C (38°F) to a maximum of 33°C (92°F) and an average of 17°C (63°F). Precipitation increases to 97 mm (3.8 in) over 13 days, along with a rise in humidity to 86%. For a detailed look at April weather, you can refer to Haikou weather in April.
In December, temperatures range considerably from a chilly -2°C (28°F) to a warm 28°C (83°F), with an average of 9°C (48°F), and the month experiences a total precipitation of 38 mm (1.5 in) over about 8 days, accompanied by a humidity level of 78%. In stark contrast, May sees significantly warmer temperatures, starting at a minimum of 10°C (50°F) and peaking at 39°C (103°F), with an average temperature of 22°C (71°F). This month is also much wetter, with 207 mm (8.2 in) of rainfall spread over 15 days, leading to an increase in humidity to 87%. For more details on the weather in May, visit Haikou weather in May.
December and June present stark contrasts in weather. In December, temperatures hover with a minimum of -2°C (28°F) and an average of 9°C (48°F), reaching a maximum of 28°C (83°F). The month experiences lighter precipitation, totaling 38 mm (1.5 in) over about 8 days, with a humidity level of 78%. In contrast, June brings significantly warmer conditions, with minimum temperatures starting at 15°C (59°F) and soaring to an average of 25°C (76°F), peaking at 37°C (99°F). This month is also much wetter, accumulating 309 mm (12.1 in) of rainfall across approximately 20 days, alongside higher humidity at 87%. For more details, check out Haikou weather in June.
In December, temperatures range from a chilly -2°C (28°F) at night to a mild high of 28°C (83°F) during the day, with an average of 9°C (48°F). The month sees relatively low precipitation of 38 mm (1.5 in) spread over about 8 days, and the humidity is at 78%. In stark contrast, July experiences much warmer conditions with temperatures starting at a minimum of 20°C (69°F) and peaking at a scorching 37°C (100°F), averaging 28°C (82°F). July is considerably wetter, with a total precipitation of 199 mm (7.9 in) over 18 days and higher humidity at 91%. The contrasting climates of December and July highlight the seasonal extremes, making July a time for heat and humidity compared to the more temperate, albeit chilly, December. For a deeper look into July's weather specifics, check out Haikou weather in July.
December and August present strikingly different weather conditions. In December, temperatures range from a chilly minimum of -2°C (28°F) to a comfortable average of 9°C (48°F) and can peak at 28°C (83°F). The month typically experiences lighter precipitation of 38 mm (1.5 in) across about 8 days, with a humidity level of 78%. In contrast, August brings significantly warmer weather, with temperatures starting at a mild 21°C (70°F), averaging 28°C (82°F), and occasionally soaring to a scorching 38°C (100°F). Rainfall is more frequent and intense in August, accumulating to 159 mm (6.3 in) over approximately 17 days, with humidity levels rising to 87%. For more details on August's climate, you can visit Haikou weather in August.
In December, the weather presents a stark contrast to September, with temperatures ranging from a chilly -2°C (28°F) to a mild 28°C (83°F) and an average of 9°C (48°F). The month experiences about 38 mm (1.5 in) of precipitation over 8 days, coupled with a relatively high humidity level of 78%. On the other hand, September boasts much warmer temperatures, with a minimum of 15°C (59°F), an average of 25°C (77°F), and a maximum reaching 37°C (99°F). This month also sees more rainfall, totaling 98 mm (3.9 in) over 12 days, but with slightly lower humidity at 72%. For a detailed look at what to expect, check out Haikou weather in September.
In comparing the weather between December and October, December tends to be cooler, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 28°C (83°F) and an average of 9°C (48°F). In contrast, October experiences milder temperatures, with a minimum of 8°C (47°F), an average of 19°C (67°F), and a maximum of 35°C (96°F). Additionally, October sees higher precipitation levels, accumulating 66 mm (2.6 in) over about 7 days, compared to December's 38 mm (1.5 in) over approximately 8 days. Despite the increased rainfall in October, humidity levels are slightly lower at 74%, while December's humidity is higher at 78%. For more details on October weather, you can visit Haikou weather in October.
In December, the weather experiences a notable drop in temperatures, with minimums reaching as low as -2°C (28°F) and an average around 9°C (48°F), compared to November's milder minimum of 2°C (36°F) and an average of 14°C (58°F). While December sees maximum temperatures peaking at 28°C (83°F), November can be warmer, with highs of 31°C (88°F). Additionally, December brings less precipitation than November, recording 38 mm (1.5 in) over 8 days compared to November's 64 mm (2.5 in) under the same number of days. Humidity levels remain relatively high, though slightly lower in December at 78% compared to 80% in November. For more detailed information, you can check Haikou weather in November.
As December descends upon Haikou, it brings a unique charm that sets it apart from other months. With temperatures ranging from a pleasant maximum to a crisp average, the month often feels refreshingly mild compared to the summer heat. Precipitation is moderate, with a handful of rainy days that help maintain the lush surroundings, while humidity gently hovers, adding to the season's briskness. December is a beautiful transition, offering a cozy escape from the summer swelter. For a deeper dive into Haikou's weather nuances, explore Haikou Climate.