Last updated: August 21, 2025
In December, Haikou, China experiences a mild climate marked by a maximum temperature of 23°C (74°F) and an average of 9°C (49°F), making it a pleasant time for outdoor activities. However, temperatures can dip to a minimum of -2°C (28°F), reminding visitors to pack accordingly. The month sees approximately 57 mm (2.2 in) of precipitation over 8 days, contributing to a moderate humidity level of 78% that adds a subtle sweetness to the air. Overall, December offers a blend of comfortable warmth and occasional showers, making it an intriguing time to explore this vibrant coastal city.
In December, Haikou, China experiences a noticeable cooling as temperatures shift from the mild autumn to a brisk winter. The minimum temperature can dip to a chilly -2°C (28°F), while the average hovers around 9°C (49°F), and daytime highs reach a pleasant 23°C (74°F). This month marks a transition as the city moves from the warmer highs of late autumn into a more temperate climate, making it a refreshing time for outdoor activities. Compared to the previous months, December offers a significant drop in average temperatures, indicating the region's shift into winter while maintaining relatively mild conditions compared to northern climates. Overall, December in Haikou presents a comfortable balance between cool mornings and sunny afternoons, perfect for exploring the city's charm.
In December, Haikou experiences a noticeable dip in both precipitation amounts and the number of rainy days compared to the preceding months. With only 57 mm (2.2 in) of rain falling over just 8 days, December marks a distinct transition from the wetter summer months. This decline sets the stage for a drier winter, in stark contrast to the peak of the rainy season in June, when the city receives a whopping 407 mm (16.0 in). The trend underscores Haikou's temperate climate, providing a respite as the year wraps up, making December an ideal time for outdoor activities amidst the mild weather.
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 UV Index of 5, which falls into the moderate exposure category, allowing for a more leisurely sun enjoyment compared to the intense levels of summer. With a burn time of 30 minutes, residents and visitors can take advantage of the milder sun without the immediate risk of overexposure. This is a significant drop from the extreme levels seen in the peak months, where burning times were as short as 10 minutes. The decreasing UV Index from the sweltering summer months highlights a seasonal trend, making December a favorable time for outdoor activities without the harsh effects of sun exposure. For more detailed insights, explore the Haikou UV Index.
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December in Haikou, China, greets visitors with a delightful blend of sunshine and milder temperatures, boasting 221 hours of sunlight. While this marks a slight decrease from the sun-drenched summer months of July and August, which each enjoyed over 300 hours, December still shines brighter than the winter months of January and February. As the year draws to a close, Haikou's consistent sunlight throughout the fall and winter months—coupled with increasing hours from November's 220 hours—invites travelers to soak in the pleasant winter sun, making it a perfect destination for those seeking a warm escape. Thus, December stands as a beautiful transition, bridging the vibrant summer glow and the tranquil onset of winter.
As December rolls in, Haikou experiences a notable resurgence in sunny weather, with a 56% chance of sunshine, making it one of the more favorable months for clear skies. This trend is particularly striking compared to the preceding summer months, where the likelihood of sun dipped to around 16-33%. After a slight improvement in November to 49%, December's sunlight returns to levels seen in early winter, resembling the sunnier conditions of January at 58%. As such, those planning a visit in December can look forward to a delightful blend of mild temperatures and ample sunshine, perfect for exploring this vibrant coastal city.
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.
As December settles over Haikou, China, the coastal breeze brings with it a gentle whisper, with an average wind speed of 1.9 m/s (4 mph). This month mirrors the calmness of the preceding weeks, showcasing a trend of diminishing winds as the year draws to a close. Following the somewhat brisk October, which boasted an inviting 2.4 m/s (5 mph), and a flirtation with slightly stronger gusts through the summer, December's airy embrace provides a serene backdrop to the city's vibrant winter festivities. Overall, the consistency in wind speeds across the last quarter reveals a characteristic stillness that enhances the tranquil charm of Haikou’s winter landscape.
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.
December and January showcase some notable differences in weather patterns. In December, temperatures range from a minimum of -2°C (28°F) to a maximum of 23°C (74°F), with an average of 9°C (49°F). The month sees about 57 mm (2.2 in) of precipitation over 8 days, accompanied by relatively high humidity levels at 78%.
In contrast, January experiences slightly cooler temperatures, with a minimum of -5°C (24°F) and a maximum of 24°C (75°F), while the average temperature drops to 8°C (46°F). Precipitation is slightly higher in January at 70 mm (2.7 in) over 9 days, but humidity decreases to 65%. For more detailed insights, you can check out Haikou weather in January.
In comparing the weather patterns of December and February, both months experience mild average temperatures, around 9°C (49°F). December has a slightly wider temperature range, with a minimum of -2°C (28°F) and a maximum of 23°C (74°F), while February sees even warmer highs, reaching up to 26°C (79°F) but a lower minimum at -3°C (26°F). Precipitation is more frequent in February, with 12 rainy days contributing to a total of 83 mm (3.3 in), compared to December's 8 days and 57 mm (2.2 in). Additionally, humidity is generally higher in December at 78%, while February's humidity drops to 71%. For a more detailed look at February's weather, you can check Haikou weather in February.
In December, the weather is generally cooler, with temperatures ranging from a low of -2°C (28°F) to a maximum of 23°C (74°F) and an average temperature of 9°C (49°F). It experiences about 57 mm (2.2 in) of precipitation over approximately 8 days, accompanied by a humidity level of 78%. In contrast, March brings a noticeable warmth with a minimum temperature of 3°C (38°F), an average of 14°C (58°F), and a peak of 30°C (86°F). However, it is significantly wetter, receiving 205 mm (8.1 in) of rain over about 16 days, and slightly higher humidity at 81%. This transition from the dryness of December to the wetter conditions of March highlights a shift in the climate as spring approaches. For more details, see Haikou weather in March.
In December, the weather is generally cooler with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 23°C (74°F), and an average of 9°C (49°F). The month sees approximately 57 mm (2.2 in) of precipitation over about 8 days, contributing to a humidity level of 78%. In contrast, April experiences significantly warmer weather, with temperatures ranging from a minimum of 5°C (41°F) to a maximum of 33°C (91°F), and an average temperature of 18°C (65°F). This month is also wetter, receiving around 179 mm (7.0 in) of rain over 14 days, resulting in a higher humidity of 86%. For more detailed information about April weather, you can check Haikou weather in April.
December and May showcase stark contrasts in weather patterns. In December, the temperatures range from a chilly minimum of -2°C (28°F) to a mild average of 9°C (49°F), with maximums reaching 23°C (74°F). This month experiences relatively low precipitation at 57 mm (2.2 in) over about 8 days, accompanied by a humidity level of 78%. In contrast, May presents a warmer picture, with temperatures starting at a minimum of 11°C (52°F) and soaring to an average of 23°C (74°F) and a maximum of 36°C (97°F). This month is significantly wetter, receiving 244 mm (9.6 in) of rain across approximately 16 days, with humidity increasing to 87%. For a more detailed look at the conditions, you can check Haikou weather in May.
December and June present strikingly different weather conditions. In December, temperatures range from a chilly minimum of -2°C (28°F) to a comfortable maximum of 23°C (74°F), with an average of 9°C (49°F). This month sees about 57 mm (2.2 in) of precipitation over approximately 8 days, accompanied by a humidity level of 78%. In contrast, June experiences a warmer climate with temperatures starting at a minimum of 17°C (63°F) and soaring to a maximum of 36°C (98°F), averaging around 26°C (79°F). The month is significantly wetter, with a staggering 407 mm (16.0 in) of rainfall spread across about 20 days, while humidity rises to 87%. For more details on weather during this month, check out Haikou weather in June.
December and July showcase strikingly different weather patterns. In December, temperatures range from a chilly minimum of -2°C (28°F) to a pleasant average of 9°C (49°F), with a maximum of 23°C (74°F). The month sees relatively low precipitation, totaling 57 mm (2.2 in) over about 8 days, with an average humidity of 78%. In contrast, July presents a much warmer climate, with temperatures starting at a minimum of 21°C (70°F) and peaking at a scorching maximum of 39°C (103°F), averaging around 29°C (85°F). July is also significantly wetter, experiencing 300 mm (11.8 in) of rain over 16 days and a high humidity of 91%. For more detailed information, you can check Haikou weather in July.
When comparing the weather in December and August, it's clear that these months present contrasting climates. December experiences much cooler temperatures, with a minimum of -2°C (28°F) and an average of 9°C (49°F), peaking at 23°C (74°F). In contrast, August boasts significantly warmer conditions, with a minimum of 22°C (71°F) and reaching highs of up to 41°C (105°F), resulting in an average temperature of 30°C (86°F). Additionally, December has lower precipitation at 57 mm (2.2 in) over 8 days, while August sees more rainfall at 119 mm (4.7 in) across 13 days. Both months also feature high humidity, with December at 78% and August slightly higher at 87%. For a more detailed look at the conditions in August, you can refer to Haikou weather in August.
In December, the weather is much cooler, with temperatures ranging from a minimum of -2°C (28°F) to a maximum of 23°C (74°F) and an average of 9°C (49°F). In contrast, September experiences noticeably warmer conditions, with temperatures fluctuating between a minimum of 17°C (63°F) and a maximum of 38°C (101°F), averaging 27°C (80°F). While December sees lower precipitation at 57 mm (2.2 in) over about 8 days, September has a slightly higher rainfall of 71 mm (2.8 in) across 9 days. Additionally, December has a higher humidity level of 78% compared to September's 72%. For more detailed information about September weather, you can visit Haikou weather in September.
Comparing the weather in December and October reveals significant differences in temperature and precipitation. In December, temperatures range from a minimum of -2°C (28°F) to a maximum of 23°C (74°F), with an average of 9°C (49°F). The month experiences 57 mm (2.2 in) of precipitation over approximately 8 days, contributing to a higher humidity level of 78%. Conversely, October is much warmer, with temperatures ranging from a minimum of 11°C (51°F) to a maximum of 36°C (97°F), averaging 21°C (70°F). It sees less precipitation at 40 mm (1.6 in) over about 6 days, and the humidity level is slightly lower at 74%. For a more detailed look, you can check out Haikou weather in October.
When comparing the weather in December to November, December tends to be cooler overall, with a minimum temperature of -2°C (28°F) and an average of 9°C (49°F), in stark contrast to November's milder minimum of 3°C (37°F) and an average of 15°C (59°F).
In terms of maximum temperatures, December's highest point reaches 23°C (74°F), while November boasts a warmer maximum of 29°C (85°F). Additionally, December experiences slightly less precipitation, totaling 57 mm (2.2 in) over 8 rainy days, compared to November's 70 mm (2.8 in) across 10 days. Humidity remains relatively consistent, with December at 78% and November at 80%. For more detailed insights on November weather patterns, you can check Haikou weather in November.
In December, Haikou experiences a notable shift in weather compared to the warmer months. With average temperatures dipping to a cooler range and occasional lows reaching near freezing, it's a time when the city's tropical charm is softened by crisp air. The humidity remains high, around 78%, creating a unique blend of coolness and moisture. Rainfall, averaging 57 mm over about eight days, adds to the atmosphere, contrasting sharply with the drier conditions of summer. For those looking to understand the nuances of Haikou's climate, the month of December offers an intriguing balance of cool temperatures and seasonal rainfall, marking it as a distinctive time to experience the city's evolving character. For more insights, visit Haikou Climate.