Last updated: August 21, 2025
In May, Sanya, China experiences a delightful tropical climate characterized by warm temperatures. The maximum temperature can reach up to 33°C (91°F), while the average hovers around 28°C (82°F), dipping to a comfortable minimum of 21°C (71°F) at night. This month sees moderate rainfall, with an average of 140 mm (5.5 in) spread across 18 days. The humidity rate settles at a notable 78%, adding to the lush, vibrant atmosphere of this coastal paradise. Visitors can enjoy the balmy weather, perfect for beach activities and exploring the scenic beauty of Sanya.
As Sanya, China transitions into May, the warmth of spring reaches its peak, with minimum temperatures rising to 21°C (71°F) and maximums soaring to a sizzling 33°C (91°F). This month boasts an inviting average temperature of 28°C (82°F), making it an ideal time for beachgoers and outdoor enthusiasts. The gradual increase in temperatures from the cooler early months reflects the region's tropical climate, where balmy breezes become a staple. With the month preceding the summer heat, May offers a perfect blend of warmth and comfort, inviting visitors to explore Sanya's stunning coastlines and vibrant landscapes.
In May, Sanya, China, experiences a dramatic uptick in precipitation, with 140 mm (5.5 in) of rainfall over 18 days. This notable increase marks a stark contrast to the preceding months, as April's total of 46 mm (1.8 in) came from just 11 days of rain. The shift signifies the onset of the wetter summer season, setting the stage for even heavier rains in June, which averages 235 mm (9.2 in). As May unfolds, residents and visitors alike can anticipate lush greenery and vibrant landscapes, a highlight of this tropical paradise. The gradual buildup of rainfall establishes a clear trend toward the more humid and dynamic weather that characterizes Sanya's summer months.
As May rolls around in Sanya, China, the humidity begins to climb, reaching a notable 78%. This increase marks a continued trend from previous months, where humidity levels gradually rose from 70% in January to 75% by April. With the onset of summer approaching, the air becomes more saturated, setting the stage for the heightened humidity seen in June and July, which soar to 80% and 87% respectively. This upward trend signifies the transition into Sanya’s tropical climate, where the warm, damp air not only invites vibrant greenery but also a lush, inviting atmosphere for those seeking both adventure and relaxation amidst the picturesque backdrop of this coastal paradise.
In May, Sanya, China, continues to experience intense sun exposure, with the UV Index consistently at 14, categorizing it as extreme and resulting in a quick burn time of just 10 minutes. This level of UV radiation is characteristic for the spring months, as it follows similar trends observed in March and April, maintaining a peak of extreme exposure that extends into early summer. Visitors should take heed of the protective measures recommended for such conditions, ensuring safety while enjoying the stunning beaches and vibrant outdoor activities the area has to offer. For more information on the UV Index and tips for sun safety, check out Sanya UV Index.
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Sanya, China, basks in a radiant May, boasting 325 hours of sunshine, marking the peak of spring's embrace. This abundance of daylight showcases a clear upward trend, as sunshine hours have steadily increased since January's 229 hours. Following the charm of blooming flowers in March, which enjoyed 316 hours, April's 308 hours seamlessly transitions into May’s brilliance, offering the perfect backdrop for beachside relaxation and outdoor adventures. As summer approaches, Sanya maintains a vibrant atmosphere, with June expecting a slight dip to 303 hours, yet May undeniably stands out as a glittering highlight in the island's sunlit calendar.
In Sanya, China, the likelihood of sunny weather tends to decrease as spring transitions into summer. May, with a 46% chance of sunshine, marks a noticeable dip compared to the months leading up to it, such as January and February, where the sun shines more reliably at 57% and 66%, respectively. While the chance of clear skies in May is still decent, it is a precursor to the cloudier and rainier months that follow, particularly June, which plummets to a mere 18%. Thus, if you're planning a visit in May, it's a good time to enjoy the sun before the summer humidity sets in.
As the vibrant month of May unfolds in Sanya, China, residents and visitors alike enjoy a delightful balance of 12 hours of daylight. Following the gradual increase from 11 hours in January and February, the daylight duration reaches its peak around mid-year, with **June and July offering an inviting 13 hours. As spring transitions into summer, the consistent daylight not only enhances outdoor activities but also celebrates the island’s natural beauty. This steady abundance of light continues into early autumn, before tapering off again in late fall, mirroring the rhythmic ebb and flow of the seasons in this tropical paradise.
As May arrives in Sanya, China, the winds during this month calm slightly, averaging 3.8 m/s (8 mph), reflecting a gentle but consistent breeze. This transitional period anticipates a shift from the milder winds of spring—like February's low of 3.5 m/s (8 mph)—to the more robust gusts of summer. Notably, July typically brings the year’s highest average wind speed at 4.3 m/s (10 mph), setting the stage for the dynamic climate that characterizes Sanya. With October and December boasting even stronger breezes at 5.2 m/s (12 mph) and 5.3 m/s (12 mph) respectively, May serves as a delightful mid-point where spring's tranquility ebbs into the heightened energy of summer winds.
Weather in Sanya varies notably across the year, with each month offering distinct climate conditions. This page compares May’s weather to other months in Sanya, focusing on differences in temperature, rainfall, humidity, and UV levels.
In comparing the weather between May and January, there are notable differences in temperature and precipitation. May experiences significantly warmer temperatures, with a minimum of 21°C (71°F) and an average of 28°C (82°F), reaching up to a high of 33°C (91°F). In contrast, January features cooler conditions, with temperatures ranging from a minimum of 11°C (53°F) to an average of 21°C (71°F), peaking at 27°C (80°F). Precipitation also varies greatly; May sees much higher rainfall at 140 mm (5.5 in) over 18 days, while January is relatively dry with only 16 mm (0.6 in) over just 2 days. Humidity levels are also higher in May at 78%, compared to 70% in January. For a more detailed look at January weather, you can visit Sanya weather in January.
May and February present markedly different weather conditions. In May, temperatures rise significantly, with a minimum of 21°C (71°F) and an average of 28°C (82°F), peaking at 33°C (91°F). This month also experiences higher precipitation, totaling 140 mm (5.5 in) over 18 days, coupled with increased humidity levels at 78%. In contrast, February enjoys milder temperatures, with a minimum of 13°C (56°F) and an average of 21°C (71°F), reaching a maximum of 27°C (81°F). The precipitation in February is much lower, totaling just 24 mm (1.0 in) over 4 days, and the humidity is slightly lower at 73%. For those interested in more details, you can check Sanya weather in February.
In comparing the weather between May and March, it is evident that May tends to be significantly warmer and more humid. May boasts an average temperature of 28°C (82°F), with maximums reaching up to 33°C (91°F), whereas March has a cooler average of 24°C (75°F) and peaks at 29°C (84°F). Additionally, May experiences a considerable increase in precipitation, with 140 mm (5.5 in) falling over 18 days compared to just 28 mm (1.1 in) over 5 days in March. The humidity levels also reflect this change, rising slightly in May to 78% from March's 75%. For more details on March's weather, you can visit Sanya weather in March.
In comparing the weather between April and May, it is clear that May tends to be warmer and more humid. May sees a minimum temperature of 21°C (71°F) and an average high of 33°C (91°F), while April's temperatures range from a minimum of 17°C (63°F) to a maximum of 31°C (87°F). Additionally, May experiences significantly higher precipitation, with 140 mm (5.5 in) of rainfall over 18 days compared to April's 46 mm (1.8 in) over just 11 days. The humidity also rises slightly in May to 78%, compared to April's 75%. For more detailed information, you can check out Sanya weather in April.
In May, temperatures range from a minimum of 21°C (71°F) to a maximum of 33°C (91°F), with an average of 28°C (82°F). The month experiences significant rainfall, totaling 140 mm (5.5 in) over 18 days, with humidity levels around 78%. In contrast, June sees slightly higher average temperatures, with minimums of 25°C (78°F) and maximums of 32°C (90°F), averaging 29°C (84°F). However, June also brings an increase in precipitation, reaching 235 mm (9.2 in) over 23 days, and humidity rises slightly to 80%. For more detailed information, you can check Sanya weather in June.
In May, the weather features a comfortable range of temperatures, with a minimum of 21°C (71°F) and a maximum of 33°C (91°F), accompanied by relatively high humidity at 78%. However, this month also sees significant rainfall, with 140 mm (5.5 in) spread over 18 days. In contrast, July tends to be slightly warmer, with minimum temperatures rising to 25°C (78°F) and a consistent average of 28°C (83°F), but it also experiences increased precipitation, reaching 338 mm (13.3 in) over 24 days. The humidity also peaks in July at 87%, making it feel more muggy compared to May. For more detailed information about July conditions, check out Sanya weather in July.
May and August present notably different weather patterns. In May, temperatures range from a minimum of 21°C (71°F) to a maximum of 33°C (91°F), with an average of 28°C (82°F). The month is characterized by relatively high humidity at 78% and 140 mm (5.5 in) of precipitation spread over 18 days. In contrast, August experiences warmer nights with a minimum temperature of 25°C (77°F) and a slightly lower maximum of 31°C (89°F), maintaining a similar average of 28°C (83°F). However, this month sees significantly more rainfall, totaling 289 mm (11.4 in) over 26 days and an increase in humidity to 87%. This comparison highlights how August tends to be wetter and more humid, while May has slightly cooler temperatures and less rainfall. For more details, you can check Sanya weather in August.
May and September exhibit a somewhat similar average temperature, with both months hovering around 28°C (82°F). However, September has slightly warmer minimum temperatures at 24°C (76°F) compared to May's 21°C (71°F). In terms of precipitation, September is considerably wetter, receiving 218 mm (8.6 in) over 24 days, while May sees less rainfall at 140 mm (5.5 in) across 18 days. Additionally, September's humidity is marginally higher, reaching 82% compared to May's 78%. For more detailed insights, you can check out Sanya weather in September.
In May, the weather features higher average temperatures, peaking at around 33°C (91°F), with a pleasant minimum of 21°C (71°F). However, the month also sees significant rainfall, with around 140 mm (5.5 in) of precipitation spread over 18 days and a humidity level of 78%. In contrast, October experiences slightly cooler temperatures, with an average of 26°C (80°F) and máximum at 31°C (88°F), while maintaining the same minimum of 21°C (70°F). Nonetheless, October is much wetter, receiving 242 mm (9.5 in) of precipitation across 17 days and a higher humidity of 80%. For more insights on the October weather, visit Sanya weather in October.
May and November present contrasting weather patterns. In May, temperatures peak with a minimum of 21°C (71°F) and can reach as high as 33°C (91°F), marking it as one of the warmer months with an average temperature of 28°C (82°F). This month also experiences significant rainfall, totaling 140 mm (5.5 in) over about 18 days, coupled with high humidity levels at 78%. In contrast, November sees milder temperatures, with a minimum of 18°C (65°F) and a maximum of 29°C (85°F), averaging around 24°C (76°F). Rainfall is markedly less in November, with only 71 mm (2.8 in) occurring over just 6 days and a slightly lower humidity at 76%. For more details on November's weather, you can visit Sanya weather in November.
May and December present contrasting weather conditions. In May, temperatures typically range from a warm minimum of 21°C (71°F) to a hot maximum of 33°C (91°F), with an average of 28°C (82°F). The month is characterized by considerable rainfall, accumulating to 140 mm (5.5 in) over 18 days, alongside high humidity levels of 78%. Conversely, December features milder temperatures, with a minimum of 13°C (55°F) and a maximum of 28°C (82°F), averaging at 22°C (72°F). Rainfall is minimal during this month, totaling only 17 mm (0.7 in) over just 3 days, and humidity drops slightly to 75%. For more specific information, you can check Sanya weather in December.
May in Sanya ushers in a vibrant blend of warmth and humidity, making it a transitional month as the region shifts toward the summer season. With average temperatures hovering around 28°C (82°F) and maximums reaching as high as 33°C (91°F), visitors can expect enjoyable beach days. However, this month is also marked by increased precipitation, with about 18 rainy days contributing to the 140 mm (5.5 in) of monthly rainfall, adding a lush vibrancy to the environment. The humidity at 78% can make afternoons feel quite muggy, differentiating May from the comparatively drier months preceding it. This delightful yet humid atmosphere is perfect for those looking to enjoy the lush landscapes of Sanya. For more detailed insights into Sanya's weather patterns, visit Sanya Climate.