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Sanya Weather

Sanya weather today, the 14-day forecast, and average temperature, rain and what to wear for every month — compared against Hong Kong. Best months to visit: Jan, Feb, Mar, Apr, Nov and Dec.

Sanya current weather

Sanya now (local time 00:15)

26°C

Clear

Feels like
32°
Humidity
93%
Wind
5 km/h

Next 7 days · what to wear

23° – 31°C

Rain likely on 6 of 7 days

👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella.

Sanya 14-day forecast

  1. Today

    10/5

    ⛈️

    30°

    24°

    💧98%

  2. Tue

    10/6

    🌦️

    31°

    24°

    💧84%

  3. Wed

    10/7

    🌦️

    30°

    24°

    💧82%

  4. Thu

    10/8

    🌧️

    26°

    24°

    💧87%

  5. Fri

    10/9

    ⛈️

    26°

    23°

    💧91%

  6. Sat

    10/10

    🌦️

    30°

    24°

    💧57%

  7. Sun

    10/11

    🌦️

    30°

    24°

    💧29%

  8. Mon

    10/12

    🌦️

    31°

    24°

    💧39%

  9. Tue

    10/13

    🌤️

    31°

    25°

    💧31%

  10. Wed

    10/14

    ☀️

    30°

    25°

    💧29%

  11. Thu

    10/15

    🌤️

    30°

    25°

    💧44%

  12. Fri

    10/16

    🌤️

    30°

    24°

    💧37%

  13. Sat

    10/17

    🌤️

    30°

    23°

    💧47%

  14. Sun

    10/18

    🌦️

    30°

    23°

    💧44%

🔔 Watch my Sanya trip

Add your dates for that week's weather, currency timing, leave days and packing — plus reminders 14 and 3 days before you fly. Free with sign-in.

Best time to visit Sanya

On temperature and rainfall, the most comfortable months in Sanya are Jan, Feb, Mar, Apr, Nov and Dec. The hottest month is May (average high 32°C) and the coldest is December (average low 17°C).

Jan26°16°Feb28°17°Mar30°20°Apr32°23°May32°25°Jun31°26°Jul31°26°Aug31°26°Sep31°25°Oct29°23°Nov28°20°Dec26°17°

Sanya climate by month

MonthAvg highAvg lowRainHumidityvs Hong Kong
JanBest26°C16°C21 mm81%+4°C
FebBest28°C17°C15 mm79%+5°C
MarBest30°C20°C36 mm78%+5°C
AprBest32°C23°C81 mm78%+4°C
May32°C25°C145 mm82%+2°C
Jun31°C26°C191 mm86%0°C
Jul31°C26°C266 mm88%-1°C
Aug31°C26°C287 mm88%-1°C
Sep31°C25°C329 mm87%0°C
Oct29°C23°C408 mm87%0°C
NovBest28°C20°C110 mm86%+2°C
DecBest26°C17°C41 mm83%+3°C

Data: NASA POWER 2001–2020 climatology (MERRA-2, elevation-corrected); Hong Kong comparison uses HKO 1991–2020 normals.

Sanya weather month by month: what to wear

Sanya in OctoberThis month

October in Sanya is warm to hot: average highs of 29°C and lows of 23°C, around 408 mm of rain (very wet) and 87% humidity — about the same as Hong Kong.

👕 Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

Sanya in NovemberBest month

November in Sanya is warm to hot: average highs of 28°C and lows of 20°C, around 110 mm of rain (some rain) and 86% humidity — about 2°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.

👕 Short sleeves, plus a light layer for air-conditioned interiors; humid, so quick-dry fabrics help.

Sanya in DecemberBest month

December in Sanya is pleasantly warm: average highs of 26°C and lows of 17°C, around 41 mm of rain (mostly dry) and 83% humidity — about 3°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.

👕 Short sleeves, plus a light layer for air-conditioned interiors.

Sanya in JanuaryBest month

January in Sanya is pleasantly warm: average highs of 26°C and lows of 16°C, around 21 mm of rain (dry) and 81% humidity — about 4°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.

👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.

Sanya in FebruaryBest month

February in Sanya is warm to hot: average highs of 28°C and lows of 17°C, around 15 mm of rain (dry) and 79% humidity — about 5°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.

👕 Short sleeves, plus a light layer for air-conditioned interiors; big day–night swing, so dress in layers.

Sanya in MarchBest month

March in Sanya is warm to hot: average highs of 30°C and lows of 20°C, around 36 mm of rain (mostly dry) and 78% humidity — about 5°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.

👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.

Sanya in AprilBest month

April in Sanya is hot: average highs of 32°C and lows of 23°C, around 81 mm of rain (some rain) and 78% humidity — about 4°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit.

👕 T-shirts, shorts and breathable fabrics; sunscreen and water; big day–night swing, so dress in layers.

Sanya in May

May in Sanya is hot: average highs of 32°C and lows of 25°C, around 145 mm of rain (some rain) and 82% humidity — about 2°C warmer than Hong Kong.

👕 T-shirts, shorts and breathable fabrics; sunscreen and water; humid, so quick-dry fabrics help.

Sanya in June

June in Sanya is hot: average highs of 31°C and lows of 26°C, around 191 mm of rain (wet) and 86% humidity — about the same as Hong Kong.

👕 T-shirts, shorts and breathable fabrics; sunscreen and water; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

Sanya in July

July in Sanya is warm to hot: average highs of 31°C and lows of 26°C, around 266 mm of rain (very wet) and 88% humidity — about the same as Hong Kong.

👕 T-shirts, shorts and breathable fabrics; sunscreen and water; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

Sanya in August

August in Sanya is warm to hot: average highs of 31°C and lows of 26°C, around 287 mm of rain (very wet) and 88% humidity — about the same as Hong Kong.

👕 T-shirts, shorts and breathable fabrics; sunscreen and water; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

Sanya in September

September in Sanya is warm to hot: average highs of 31°C and lows of 25°C, around 329 mm of rain (very wet) and 87% humidity — about the same as Hong Kong.

👕 T-shirts, shorts and breathable fabrics; sunscreen and water; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

FAQ

›What is the best time to visit Sanya?

On temperature and rainfall, the most comfortable months in Sanya are Jan, Feb, Mar, Apr, Nov and Dec. The hottest month is May (average high 32°C) and the coldest is December (average low 17°C).

›What's the weather like in Sanya in October, and what should I wear?

October in Sanya is warm to hot: average highs of 29°C and lows of 23°C, around 408 mm of rain (very wet) and 87% humidity — about the same as Hong Kong. What to wear: Short sleeves, plus a light layer for air-conditioned interiors; it's wet, so pack a compact umbrella; humid, so quick-dry fabrics help.

›What's the weather like in Sanya in November, and what should I wear?

November in Sanya is warm to hot: average highs of 28°C and lows of 20°C, around 110 mm of rain (some rain) and 86% humidity — about 2°C warmer than Hong Kong. It's one of the most comfortable months of the year to visit. What to wear: Short sleeves, plus a light layer for air-conditioned interiors; humid, so quick-dry fabrics help.

›When is the rainy season in Sanya?

Sanya is wettest in October, with about 408 mm on average, and driest in February, with about 15 mm.

›How cold does Sanya get? Does it snow?

The coldest month is December, averaging 26°C by day and 17°C at night. Snow is very unlikely.

Planning a trip to Sanya?

More Mainland China weather

Beijing●8–19°Shanghai●16–23°Xi'an●10–21°Chengdu●15–21°Chongqing●16–22°Hangzhou●14–24°Suzhou●10–22°Guangzhou●21–28°Guilin●16–26°Zhangjiajie●13–22°Shenzhen●21–28°Zhuhai23–28°

Popular destinations in October

Tokyo●14–22°Osaka●14–23°Fukuoka●16–23°Sapporo●7–16°Okinawa (Naha)●24–28°Kyoto●13–22°Nagoya●14–23°Seoul●9–19°Busan●13–21°Jeju Island●16–21°Taipei22–27°Taichung●22–30°

Forecast data: Open-Meteo.com (CC BY 4.0), refreshed every 3 hours. Hottest month: May; coldest: December.