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Climate · Sanya

Sanya in May

Hot and wet, as the days lengthen.

Typical weather, averaged over 30 years

May in Sanya is hot: highs near 90°F, lows near 78°F. Rain falls on about five days a week, more often as the month goes on, and the days lengthen by 19 minutes from the first week to the last.May in Sanya is hot: highs near 32°C, lows near 26°C. Rain falls on about five days a week, more often as the month goes on, and the days lengthen by 19 minutes from the first week to the last.

High
90°F32°Caverage
Low
78°F26°Caverage
Wet days
5a week · 76% of days
Daylight
12h 59mon average

Is May a good time to visit Sanya?

May sits outside Sanya's best months, which run from December to February. Expect hot days and rain on about five days 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.

How May sits in the year

week by week

Temperature

Highs near 90°F in May, against 78°F to 91°F through the year.Highs near 32°C in May, against 26°C to 33°C through the year.

Chance of a wet day

76% of days in May, against 11% to 84% through the year.

Cloud cover

77% cover in May, against 49% to 86% through the year.

Daylight

12h 59m in May, against 11h 03m to 13h 13m through the year.

Week by week, lightly smoothed, with May shaded. The olive line marks the best months. Hover or tap a week for its figures.

Either side

  1. April87°31°low 75°low 24°4 wet days a weekRain on about four days a week.
  2. May90°32°low 78°low 26°5 wet days a weekRain on about five days a week.
  3. June91°33°low 79°low 26°6 wet days a weekRain on about six days a week.

Where Sanya sits, in May

Asia/Shanghai
this place
typical high in May 40°F4°C95°F35°C
Sunrise, mid-May
6:08 AMsets 7:07 PM
Above the sea
5 mlow-lying
Latitude
18.4°Nnorthern hemisphere
Nearest of ours
Xishuangbanna Dai Autonomous Prefecture972 km north-west

The land around Sanya, shaded by its typical high in May, 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.

Elsewhere in China in May

high · low · wet days
See May on the planning mapThe whole year in Sanya

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.