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Monthly climate in Sanya, Hainan, China

Last updated: March 2, 2024

Under the Köppen–Geiger climate classification Sanya features a tropical savanna climate (Aw). Temperatures typically range between 21 °C (71 °F) and 29 °C (84 °F) through the year, but rarely can drop to 11 °C (53 °F) or can rise to as high as 33 °C (91 °F). The average annual precipitation amounts to about 1665 mm (65.6 inches) and receives 163 rainy days on the 1 mm (0.04 inches) threshold annually. Sanya enjoys an average of 3502 hours of sunshine throughout the year, and daylight varies from 11 hours 2 minutes to 13 hours 11 minutes per day.

Monthly average temperatures in Sanya, Hainan, China §

The warmest months in Sanya are June, July and August, with daily mean temperatures ranging from 28 to 29 °C (83 - 84 °F) throughout the day. The coldest temperatures usually occur in January, February and December, when daily mean temperatures range from 21 to 22 °C (71 - 72 °F) throughout the day. On average each year, Sanya experiences 258 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Sanya, Hainan, China. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 27°C
(80°F)		 27°C
(81°F)		 29°C
(84°F)		 31°C
(87°F)		 33°C
(91°F)		 32°C
(90°F)		 32°C
(89°F)		 31°C
(89°F)		 32°C
(89°F)		 31°C
(88°F)		 29°C
(85°F)		 28°C
(82°F)
Mean maximum 26°C
(79°F)		 26°C
(79°F)		 28°C
(82°F)		 30°C
(85°F)		 32°C
(89°F)		 31°C
(89°F)		 31°C
(88°F)		 31°C
(88°F)		 31°C
(88°F)		 30°C
(87°F)		 29°C
(84°F)		 27°C
(81°F)
Average high 24°C
(75°F)		 24°C
(75°F)		 26°C
(79°F)		 28°C
(82°F)		 30°C
(86°F)		 30°C
(87°F)		 30°C
(86°F)		 30°C
(86°F)		 30°C
(86°F)		 28°C
(83°F)		 27°C
(80°F)		 24°C
(76°F)
Daily mean 21°C
(71°F)		 21°C
(71°F)		 24°C
(75°F)		 26°C
(78°F)		 28°C
(82°F)		 29°C
(84°F)		 28°C
(83°F)		 28°C
(83°F)		 28°C
(82°F)		 26°C
(80°F)		 24°C
(76°F)		 22°C
(72°F)
Average low 19°C
(67°F)		 19°C
(67°F)		 22°C
(73°F)		 24°C
(76°F)		 26°C
(80°F)		 27°C
(81°F)		 27°C
(80°F)		 27°C
(80°F)		 26°C
(79°F)		 25°C
(77°F)		 23°C
(73°F)		 20°C
(68°F)
Mean minimum 15°C
(59°F)		 16°C
(61°F)		 20°C
(68°F)		 21°C
(70°F)		 24°C
(76°F)		 26°C
(79°F)		 26°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 22°C
(72°F)		 20°C
(68°F)		 15°C
(60°F)
Minimum 11°C
(53°F)		 13°C
(56°F)		 17°C
(63°F)		 17°C
(63°F)		 21°C
(71°F)		 25°C
(78°F)		 25°C
(78°F)		 25°C
(77°F)		 24°C
(76°F)		 21°C
(70°F)		 18°C
(65°F)		 13°C
(55°F)

Compare climate in Sanya with other places

Compare temperature, precipitation, sunshine, UV index in Sanya, Hainan, China with other places around the world.

Monthly average precipitation in Sanya, Hainan, China §

Sanya usually has the most precipitation in July, August and October, with an average of 22 rainy days and 290 mm (11.4 inches) of precipitation per month. The driest months in Sanya are January, February and December. On average, 19 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Sanya, Hainan, China. Generated using Copernicus Climate Change Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 16 (0.6) 24 (1.0) 28 (1.1) 46 (1.8) 140 (5.5) 235 (9.2) 338 (13.3) 289 (11.4) 218 (8.6) 242 (9.5) 71 (2.8) 17 (0.7)
Average precipitation days (≥ 1 mm) 2 4 5 11 18 23 24 26 24 17 6 3

Monthly sunshine hours in Sanya, Hainan, China §

The sunniest months in Sanya are March, May and July, when the sun shines an average of 10 hours 20 minutes a day. Least sunny months in Sanya: January, February and November receive an average of 8 hours 37 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Sanya, Hainan, China. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 228 274 316 308 324 302 319 298 292 287 272 275
Mean daily daylight hours 11h 9m 11h 32m 12h 1m 12h 33m 12h 58m 13h 11m 13h 5m 12h 42m 12h 13m 11h 42m 11h 15m 11h 2m

Solar UV radiation in Sanya, Hainan, China §

Sanya experiences the highest level of ultraviolet (UV) radiation in April, May and August, when the maximum UV index can reach values of 14 - 14, which corresponds to the Extreme category of sun exposure. January, November and December are in the Very High exposure category. In these months, the maximum values of the UV index do not exceed 9. For more detailed information, check out our hourly Sanya UV Index data.

Average daily maximum UV levels by month for Sanya, Hainan, China. Generated using Copernicus Atmosphere Monitoring Service information. Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 9 11 14 14 14 13 14 14 13 12 9 8

Detailed Monthly Weather Insights for Sanya, Hainan, China

Discover in-depth weather details for every month in Sanya. Click through the links below for comprehensive overviews of temperature trends, precipitation levels, sunshine hours, and solar UV radiation specifics. Whether planning a visit or simply curious about Sanya's climate nuances, these monthly breakdowns provide the information you need for an informed understanding of what to expect throughout the year.

Each link leads to a detailed account of the typical weather conditions for that month, providing both locals and tourists with vital information to plan their daily activities, wardrobe, and travel itineraries accordingly.