Temperature
Pleasant by day, mild at night.
77°Ftypical December high
Typical range
December climate
December in Sanya
China · East Asia
Warm coastal days and plenty of sun.
One of the best months here
Mid to late
Daytime high
77°F
Lows around 64°F
Rain
A few rainy days
Sun
9 h/day
Air feel
Humid
Sea temp
76°F
Warm sea
When to visit
Month-by-month fit
Best
Precipitation
A few rainy days, mostly brief and on-and-off. About 3 wet days, the lowest monthly average.
10%wet-day frequency
AmountWet-day chance
Sunshine
A mix of sunshine and cloud.
9 hDecember sunshine
Heat & humidity by month
Warm days, with humid periods.
49%December Heat feel
Easy airWarm airHumid airVery humid air
Hourly temperature pattern
In December, afternoons feel about 78° and nights feel near 67°.
ComfortableWarmHotSwelteringNight hours
Clear sky
Partly cloudy skies this month.
43%December Clear sky
Clear skyCloud
Wind pattern
Calm winds are typical in December.
5 mphDecember Calm
Sea temperature
76°FDecember sea temp
More detailIncludes daypart comfort
Typical December day
December late afternoons are around 76°F, easing to about 71°F in early evening.
Avg temp Typical range
Morning70°F
Rain5%
Cloud53%
Humid airModerate
Sun intensityLow
Best windowMidday76°F
Rain10%
Cloud59%
Humid airModerate
Sun intensityStrong
Late afternoon76°F
Rain10%
Cloud62%
Humid airModerate
Sun intensityLow
Early evening70°F
Feels 73°F
Rain6%
Cloud54%
Humid airModerate
Sun intensityMinimal
Data tableView month-by-month numbers
View month-by-month numbers
| Month | High°F | Low°F | Rainin | Wet days | Sunh | Humidity% | Sea°F |
|---|---|---|---|---|---|---|---|
| Jan | 76 | 62 | 0.5 | 3 | 8.8 | 82 | 74 |
| Feb | 78 | 65 | 0.6 | 4 | 9.0 | 83 | 73 |
| Mar | 82 | 70 | 1.1 | 6 | 10.1 | 84 | 75 |
| Apr | 86 | 75 | 3.3 | 14 | 10.7 | 84 | 79 |
| May | 90 | 78 | 7.0 | 22 | 10.3 | 85 | 83 |
| Jun | 90 | 80 | 8.1 | 24 | 9.9 | 85 | 85 |
| Jul | 89 | 79 | 10.3 | 25 | 9.5 | 86 | 85 |
| Aug | 89 | 79 | 10.6 | 27 | 9.0 | 87 | 85 |
| Sep | 88 | 77 | 10.3 | 25 | 8.5 | 86 | 85 |
| Oct | 86 | 74 | 6.9 | 16 | 9.3 | 84 | 83 |
| Nov | 83 | 70 | 2.1 | 7 | 9.6 | 82 | 80 |
| Dec | 77 | 64 | 0.9 | 3 | 9.0 | 80 | 76 |
Similar climates
Similar
Similar travel styleBridgetownBarbadosSimilar travel styleCancúnMexicoSimilar travel styleNassauBahamasSimilar travel stylePunta CanaDominican Republic
Want a side-by-side climate view? Compare Sanya with Bridgetown.
Climate data notePlanning guidance, not a forecast
Typical monthly values are based on long-term climate records. Useful for planning, not a forecast. Check the weather before you travel.
Sunshine: source type is not yet identified at metric level.
Local microclimates can vary by beach, neighborhood, trail, or elevation.
Last updated: Jun 1, 2026
Data & methodology