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Climate · China

Sanya

Hot and wet from May to September; warm and mostly dry from December to February.

Typical weather, averaged over 30 years18.4°N5 m above the sea
  1. Jan78°26°64°18°Rain on about one day a week.
  2. Feb79°26°65°18°Rain on about one day a week.
  3. Mar84°29°70°21°Rain on about two days a week.
  4. Apr87°31°75°24°Rain on about four days a week.
  5. May90°32°78°26°Rain on about five days a week.
  6. Jun91°33°79°26°Rain on about six days a week.
  7. Jul90°32°79°26°Rain on about six days a week.
  8. Aug90°32°78°26°Rain on about six days a week.
  9. Sep89°32°77°25°Rain on about six days a week.
  10. Oct87°31°75°24°Rain on about four days a week.
  11. Nov84°29°71°22°Rain on about two days a week.
  12. Dec79°26°65°18°Rain on about one day a week.
Each month: its typical high and low, and dots for wet days a week. Tap a month to open it.The best months

The hot season runs from May to September, with highs near 90°F and nights near 78°F. From December to February, highs are nearer 79°F. The rain comes from April to October, on about five days a week. November to February is the driest stretch, with rain on about one day a week. Daylight runs from about 11 hours in December to 13 hours in June.The hot season runs from May to September, with highs near 32°C and nights near 26°C. From December to February, highs are nearer 26°C. The rain comes from April to October, on about five days a week. November to February is the driest stretch, with rain on about one day a week. Daylight runs from about 11 hours in December to 13 hours in June.

Where Sanya sits

Asia/Shanghai
this place
typical high in Januarytypical high in Februarytypical high in Marchtypical high in Apriltypical high in Maytypical high in Junetypical high in Julytypical high in Augusttypical high in Septembertypical high in Octobertypical high in Novembertypical high in December 40°F4°C95°F35°C
Latitude
18.4°Nnorthern hemisphere
Above the sea
5 mlow-lying
Sunrise, mid-JanuarySunrise, mid-FebruarySunrise, mid-MarchSunrise, mid-AprilSunrise, mid-MaySunrise, mid-JuneSunrise, mid-JulySunrise, mid-AugustSunrise, mid-SeptemberSunrise, mid-OctoberSunrise, mid-NovemberSunrise, mid-December
7:16 AM7:09 AM6:50 AM6:25 AM6:08 AM6:04 AM6:13 AM6:23 AM6:28 AM6:34 AM6:47 AM7:05 AMsets 6:24 PMsets 6:41 PMsets 6:51 PMsets 6:58 PMsets 7:07 PMsets 7:18 PMsets 7:21 PMsets 7:09 PMsets 6:44 PMsets 6:19 PMsets 6:04 PMsets 6:07 PM
Nearest of ours
Xishuangbanna Dai Autonomous Prefecture972 km north-west

The land around Sanya, shaded by its typical high in January, the planning map's own layer.The land around Sanya, shaded by its typical high in February, the planning map's own layer.The land around Sanya, shaded by its typical high in March, the planning map's own layer.The land around Sanya, shaded by its typical high in April, the planning map's own layer.The land around Sanya, shaded by its typical high in May, the planning map's own layer.The land around Sanya, shaded by its typical high in June, the planning map's own layer.The land around Sanya, shaded by its typical high in July, the planning map's own layer.The land around Sanya, shaded by its typical high in August, the planning map's own layer.The land around Sanya, shaded by its typical high in September, the planning map's own layer.The land around Sanya, shaded by its typical high in October, the planning map's own layer.The land around Sanya, shaded by its typical high in November, the planning map's own layer.The land around Sanya, shaded by its typical high in December, the planning map's own layer. Hover the map for the figure at that spot; tap it on a phone. Clock times are local, for the 15th.

Through the year

week by week

Temperature

Highs from 78°F in January to 91°F in June.Highs from 26°C in January to 33°C in June.

Chance of a wet day

Wettest in June (84% of days), driest in December and January (11%).

Cloud cover

Clearest in February and March (49% cover), cloudiest in June (86%).

Daylight

From 11h 03m in December to 13h 13m in June.

Week by week, lightly smoothed. Shading marks the seasons; the olive line, the best months. Hover or tap a week for its figures.

Month by month

°F°C
Sanya, month by month: the typical high and low, wet days a week, cloud cover and daylight.
MonthTypical low to highWet days a weekCloudDaylight
JanuaryCool seasonAt its best
64°18°78°26°
1 day54%11h 09m
FebruaryCool seasonAt its best
65°18°79°26°
1 day49%11h 31m
March
70°21°84°29°
2 days49%12h 01m
April
75°24°87°31°
4 days58%12h 33m
MayHot season
78°26°90°32°
5 days77%12h 59m
JuneHot season
79°26°91°33°
6 days86%13h 13m
JulyHot season
79°26°90°32°
6 days81%13h 06m
AugustHot season
78°26°90°32°
6 days81%12h 43m
SeptemberHot season
77°25°89°32°
6 days78%12h 12m
October
75°24°87°31°
4 days68%11h 41m
November
71°22°84°29°
2 days59%11h 15m
DecemberCool seasonAt its best
65°18°79°26°
1 day56%11h 03m

When is the best time to visit Sanya?

The best months are December to February: highs near 79°F, nights near 65°F, and rain on about one day a week.The best months are December to February: highs near 26°C, nights near 18°C, and rain on about one day a week.

How we judge it: every month is scored on how close its typical high comes to the range from 70°F to 80°F, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.How we judge it: every month is scored on how close its typical high comes to the range from 21°C to 27°C, how mild its nights are, and how rarely it rains. The best months are the run of months that scores best.

Questions

What is the warmest month in Sanya?

June, with highs near 91°F and lows near 79°F. The coolest is January, with highs near 78°F.June, with highs near 33°C and lows near 26°C. The coolest is January, with highs near 26°C.

When does it rain most in Sanya?

June, with rain on about six days a week. December and January are the driest, with rain on about one day a week.

How long are the days in Sanya?

From about 11 hours in December to 13 hours in June.

When are the skies clearest in Sanya?

February and March, when cloud covers about 49% of the sky on average. June is the cloudiest, at about 86%.

Places with a year like Sanya's

by their highs, lows and wet days

Their highs, lows, wet days and cloud run closest to Sanya's through the year, one place a country. “Six months apart”: their winter is Sanya's summer.

Elsewhere in China

All of China

Where to stay

4 in our collection
Open the planning map

Typical weather, averaged over 30 years (1995–2024), from the 11 km grid square nearest Sanya. Temperatures are adjusted against 66 weather stations: daytime highs read about 3.1°F cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (5 m) against the climate model's (117 m).Temperatures are adjusted against 66 weather stations: daytime highs read about 1.7°C cold in the source data and are raised to match, and both highs and lows are adjusted for the town's height (5 m) against the climate model's (117 m). Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not. Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.

Daylight is calculated from latitude. Charts are lightly smoothed week to week; the figures in the table are not.

Source: Copernicus ERA5-Land reanalysis; cloud cover from NASA's MERRA-2 reanalysis, on a coarser grid of about 50 km. Contains modified Copernicus Climate Change Service information 2026; neither the European Commission nor ECMWF is responsible for any use of it. These are averages, not a forecast.