Last updated: August 21, 2025
January in Sanya, China offers a pleasant coastal escape with maximum temperatures reaching 27°C (80°F) and an average of 21°C (71°F). The weather is generally mild, with a minimum of 11°C (53°F) at night, making it comfortable for outdoor activities. Visitors can expect limited rainfall, averaging just 16 mm (0.6 in) over 2 days, complementing the 70% humidity that adds a refreshing coastal feel. Whether lounging on the beach or exploring local attractions, January’s climate creates an inviting atmosphere for travelers.
In January, Sanya, China offers a refreshing respite from the winter chill, with temperatures ranging from a mild 11°C (53°F) at night to a pleasant peak of 27°C (80°F) during the day. The average temperature sits comfortably at 21°C (71°F), creating a delightful atmosphere for outdoor activities and exploration. As winter transitions to spring, February sees a slight increase in both nighttime and daytime temperatures, maintaining the enjoyable average. This trend continues into March, with warmer days and nights hinting at the festive vibe of approaching summer. The consistent warmth throughout January and the subsequent months showcases Sanya's inviting climate, making it an appealing destination for those seeking sunshine and mild weather, especially when compared to colder seasons in other regions.
In January, Sanya, China experiences relatively low precipitation, with just 16 mm (0.6 in) falling over approximately 2 days. This marks the month as one of the driest in the annual cycle, setting the stage for the dry season that precedes the much wetter months. As the year progresses into February and March, rainfall gradually increases, reaching 24 mm and 28 mm respectively, but it’s not until May that the region truly transitions to its wet season, with precipitation skyrocketing to 140 mm (5.5 in). The trend is clear: Sanya’s climate shifts dramatically from the dry and mild first quarter to the humid and wet mid-year, peaking in July with substantial rainfall days. This pattern underscores Sanya's character as a tropical haven, offering a blend of sunny days and refreshing rain throughout the year.
In January, Sanya experiences a relatively comfortable humidity level of 70%, setting the stage for a mild start to the year. As the months progress into February and March, humidity gradually increases, reaching 73% and 75% respectively, hinting at the onset of spring. By April and May, humidity levels remain steady at 75% and 78%, as the region begins to warm up. The summer months bring a significant rise, with June and July witnessing humidity levels escalating to 80% and an impressive 87%. This trend of high humidity continues into August, tapering slightly to 82% by September. As autumn arrives, humidity experiences a gradual decrease, settling back at 80% in October and further down to 76% in November, before finishing the year at 75% in December. This annual cycle highlights Sanya's transition from a humid winter to a lush, tropical summer, inviting visitors to enjoy its vibrant climate throughout the year.
In January, Sanya, China, experiences a UV Index of 9, classified as very high, with a burn time of just 15 minutes. As winter gives way to spring, this trend escalates; by February, the UV Index spikes to 11, reaching an extreme level. This intensity continues into the following months, peaking at a remarkable 14 from March to July, signaling a period of potential sunburn in just 10 minutes of exposure. The UV Index slightly dips to 13 in June and September, then to 12 in October, before dropping back to 9 in November and 8 in December, categorizing these months once again as very high. This seasonal fluctuation emphasizes the importance of sun protection, especially in the spring and summer months. For more detailed information, check out the Sanya UV Index.
UV Risk Categories
Sanya, China, welcomes the year with 229 hours of sunshine in January, laying a warm foundation for the months to come. As winter gives way to spring, sunshine hours steadily increase, reaching 274 hours in February and further escalating to a vibrant 316 hours in March. The sunny trend continues into the spring, peaking at 325 hours in May. Interestingly, while June presents a slight dip to 303 hours, July rebounds with 320 hours, demonstrating Sanya's robust sunshine resilience during the summer. Even as the year transitions toward autumn, the city retains a generous bask of sunlight, with September holding on to 293 hours before gracefully tapering off towards winter months, capturing 273 hours in November and 276 hours in December. This trend highlights Sanya's allure as a sun-soaked destination year-round, making it a perfect escape for those craving warmth and light, even in the winter months.
In January, Sanya, China enjoys a 57% chance of sunny weather, making it a promising destination for those seeking winter sunshine. This likelihood is significantly higher compared to the following months, such as June and July, where the chances plummet to 18% and 28%, respectively. Interestingly, January's sunny probabilities also outshine the cooler months that follow, with February boasting an even sunnier 66% chance but a decrease in likelihood as spring approaches, peaking again eventually in November at 59%. Overall, January presents an appealing window for travelers looking to bask in sunlight, right before the summer months introduce an unpredictable rainy season.
In January, Sanya, China enjoys 11 hours of daylight, a perfect balance for those looking to soak up sun without the overwhelming heat. This consistent daylight duration persists through February, before gradually extending to 12 hours in March as spring approaches. The trend of longer days continues into April and May, with 12 hours of daylight, making these months ideal for outdoor adventures. As summer rolls in, daylight peaks at 13 hours in June and July, offering plenty of time for beachgoers and explorers alike to relish the sun. By August, daylight begins to taper back to 12 hours, returning to the earlier pattern seen in spring. The months of September through November see a steady return to 11 hours of daylight, creating a rhythmic cycle of sunshine that Sanya residents and visitors cherish throughout the year.
In January, Sanya experiences an average wind speed of 4.2 m/s (about 9 mph), setting a dynamic tone for the month as gentle breezes dance along the coast. This initial gust of wind is part of a larger seasonal pattern, where the wind builds momentum through the year, peaking in October and December with speeds reaching 5.2 m/s and 5.3 m/s (12 mph), respectively. Notably, the early months of the year tend to be milder, with February showing a slight dip to 3.5 m/s (8 mph) before gradually increasing again by mid-year. As summer rolls in, the winds pick up, culminating in a lively July at 4.3 m/s (10 mph), before calming down as the year draws to a close. This gentle ebb and flow of the wind not only enhances the coastal experience but also captivates those who visit, making January an inviting time to enjoy Sanya's beautiful landscapes.
Weather in Sanya varies notably across the year, with each month offering distinct climate conditions. This page compares January’s weather to other months in Sanya, focusing on differences in temperature, rainfall, humidity, and UV levels.
In January, the weather is generally mild, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 27°C (80°F) and an average of 21°C (71°F). The month experiences minimal precipitation, totaling 16 mm (0.6 in) over just 2 days, and the humidity hovers around 70%. In contrast, February sees slightly warmer temperatures, with the minimum rising to 13°C (56°F) while maintaining the same maximum of 27°C (81°F) and average of 21°C (71°F). However, it does bring increased rainfall, amounting to 24 mm (1.0 in) over 4 days, and a marginally higher humidity level at 73%. For more details on February's weather, you can check Sanya weather in February.
January and March present distinct contrasts in weather. In January, temperatures range from a minimum of 11°C (53°F) to a maximum of 27°C (80°F), with an average of 21°C (71°F). The month sees relatively low precipitation, totaling 16 mm (0.6 in) over just two days, and humidity levels sit at 70%. In contrast, March brings warmer temperatures, with a minimum of 17°C (63°F) and a maximum of 29°C (84°F), averaging 24°C (75°F). This month experiences increased rainfall, accumulating 28 mm (1.1 in) over five days, and slightly higher humidity at 75%. For more detailed information on March weather, you can check Sanya weather in March.
In comparing the weather between January and April, it’s clear that April is generally warmer and wetter. January features a minimum temperature of 11°C (53°F) and an average of 21°C (71°F), with a maximum of 27°C (80°F). This month sees relatively low precipitation, with only 16 mm (0.6 in) over 2 days and a humidity level of 70%. In contrast, April experiences a significant increase in temperature, with a minimum of 17°C (63°F) and an average of 26°C (78°F), reaching a maximum of 31°C (87°F). This month also brings more rain, totaling 46 mm (1.8 in) over 11 days, accompanied by a slightly higher humidity of 75%. For a detailed look at April weather in Sanya, you can click here: Sanya weather in April.
In January, the weather is generally mild, with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 27°C (80°F) and an average of 21°C (71°F). The month experiences relatively low precipitation, only 16 mm (0.6 in) over just 2 days, and humidity stands at 70%. In contrast, May brings much warmer temperatures, with a minimum of 21°C (71°F), an average of 28°C (82°F), and peaks at 33°C (91°F). This month also experiences significantly higher rainfall, totaling 140 mm (5.5 in) over 18 days, and a slight increase in humidity to 78%. For more details on May weather, you can check Sanya weather in May.
January and June present contrasting weather patterns. In January, temperatures are mild with a minimum of 11°C (53°F), averaging 21°C (71°F), and peaking at 27°C (80°F). The month sees minimal precipitation, totaling just 16 mm (0.6 in) over 2 days, with humidity levels at a comfortable 70%. In stark contrast, June experiences much warmer temperatures, starting at a minimum of 25°C (78°F), averaging 29°C (84°F), and reaching a maximum of 32°C (90°F). Rainfall is significant, amounting to 235 mm (9.2 in) over 23 days, and humidity rises to 80%. For a more detailed understanding of what to expect, check out Sanya weather in June.
In January, the weather is generally mild, with temperatures ranging from a comfortable minimum of 11°C (53°F) to a pleasant maximum of 27°C (80°F). The month sees minimal precipitation, averaging just 16 mm (0.6 in) over only 2 days, accompanied by a moderate humidity level of 70%.
In contrast, July is significantly hotter and more humid. The temperature ranges from a minimum of 25°C (78°F) to a maximum of 32°C (89°F), with an average of 28°C (83°F). This month experiences substantial rainfall, averaging 338 mm (13.3 in) over 24 days, and high humidity at 87%. For more details on July conditions, check out Sanya weather in July.
In comparing January and August weather, January offers a much milder climate with average temperatures ranging from a minimum of 11°C (53°F) to a maximum of 27°C (80°F). This month sees relatively low precipitation, with only 16 mm (0.6 in) and humidity at 70%. In contrast, August experiences significantly warmer temperatures, with a minimum of 25°C (77°F) and a maximum of 31°C (89°F). Additionally, this month is characterized by much higher rainfall, totaling 289 mm (11.4 in) over 26 days, and an increase in humidity to 87%. For more detailed information, check Sanya weather in August.
In January, the weather is generally mild, with temperatures ranging from a minimum of 11°C (53°F) to a comfortable maximum of 27°C (80°F), and only 16 mm of precipitation spread over just two days, leading to a humidity level of 70%. In contrast, September brings significantly warmer temperatures, with a minimum of 24°C (76°F) and a maximum reaching 32°C (89°F). However, it is also the wettest month, experiencing 218 mm of rainfall over 24 days, contributing to a higher humidity level of 82%. For more detailed insights into the weather patterns, you can check Sanya weather in September.
In January, the weather is relatively mild with temperatures ranging from a minimum of 11°C (53°F) to a maximum of 27°C (80°F), and an average of 21°C (71°F). Precipitation is minimal at 16 mm (0.6 in) over just 2 days, resulting in lower humidity levels at around 70%.
In contrast, October experiences warmer temperatures, with minimums of 21°C (70°F) and maximums reaching 31°C (88°F), averaging 26°C (80°F). However, it is also significantly wetter, receiving 242 mm (9.5 in) of rainfall over 17 days, and comes with higher humidity levels at 80%. For more details on the weather in October, you can check this link: Sanya weather in October.
In January, the weather is typically warmer than in many other regions, with minimum temperatures around 11°C (53°F) and maximums reaching 27°C (80°F). With an average temperature of 21°C (71°F) and only 16 mm (0.6 in) of precipitation over just two days, it tends to be relatively dry and comfortable, with a humidity level of 70%. In contrast, November boasts higher overall temperatures, with minimums around 18°C (65°F) and maximums peaking at 29°C (85°F). The humidity increases slightly to 76%, and rainfall is more frequent, totaling 71 mm (2.8 in) across six days. For more detailed information on the weather during this month, you can check Sanya weather in November. Overall, November is characterized by warmer temperatures and greater humidity, making it distinct from the drier, cooler January.
In January, the weather shows a slight decrease in temperature compared to December, with minimums averaging 11°C (53°F) and maximums reaching up to 27°C (80°F). While January experiences slightly less precipitation at 16 mm (0.6 in) over 2 days, the humidity levels drop to around 70%. In contrast, December has a more stable temperature range, with minimums at 13°C (55°F) and maximums at 28°C (82°F), accompanied by a bit more rain at 17 mm (0.7 in) over 3 days and higher humidity at 75%. For a more detailed look at December weather, you can visit Sanya weather in December.
In January, Sanya experiences a refreshing escape from the sweltering heat of other months, with comfortably warm temperatures averaging around 21°C (71°F). This pleasant climate is accompanied by low precipitation, with only two rainy days and a mere 16 mm of rainfall, making it a great time for outdoor activities and sightseeing. The humidity remains moderate at 70%, allowing for enjoyable beach days without the oppressive stickiness often found in peak summer months. If you're planning a visit, you'll find January's weather to be a delightful contrast to the hotter periods, ideal for an invigorating getaway. For more detailed insights on the weather patterns throughout the year, explore Sanya Climate.