January weather forecast
Sanya, China

Weather in January

January, the same as December, is a moderately hot winter month in Sanya, China, with an average temperature varying between 26.1°C (79°F) and 18.5°C (65.3°F).

Temperature

With an average high-temperature of 26.1°C (79°F) and an average low-temperature of 18.5°C (65.3°F), January is the coldest month.

Rainfall

January is the month with the least rainfall. Rain falls for 3.4 days and accumulates 8mm (0.31") of precipitation.

Sea temperature

In January, the average sea temperature is 23.4°C (74.1°F).
Note: A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.4°C (74.1°F) water. (FYI: The Olympic swimming competition requires a water temperature between 25°C (77°F) and 28°C (82.4°F).)

Daylight

In January, the average length of the day is 11h and 11min.
On the first day of the month, sunrise is at 07:13 and sunset at 18:17. On the last day of January, in Sanya, sunrise is at 07:15 and sunset at 18:35 CST.

Sunshine

The months with the least sunshine in Sanya are January through March, with an average of 5h of sunshine.

UV index

The average daily maximum UV index in January is 9. A UV Index value of 8 to 10 symbolizes a very high threat to health from unprotected exposure to Sun's UV rays for the ordinary person.
Note: In January, the average maximum UV index of 9 translate into the following recommendations:
Take extra precautions. Protection against sun damage is required. The Sun's UV radiation is most powerful between 10 a.m. and 4 p.m. To the extent possible, limit exposure to the direct sun during these hours. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Prolonged stay under the direct sun should be avoided as much as possible, especially if a person burns easily. Sunscreen with a minimum 30 sun protection factor should always be used. Beware! The reflection of water and sand dramatically increases exposure to the UV rays.
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FAQ

What is the coldest month in Sanya?

January is the coldest month in Sanya, China, with an average high-temperature of 26.1°C (79°F) and an average low-temperature of 18.5°C (65.3°F).

What is the temperature in January in Sanya?

The average high-temperature, in January, in Sanya, China, is 26.1°C (79°F), while the average low-temperature is 18.5°C (65.3°F).

What is the driest month in Sanya?

The month with the least rainfall is January, when the rain falls for 3.4 days and typically collects 8mm (0.31") of precipitation.

How many days does it rain in January in Sanya?

In Sanya, China, during January, the rain falls for 3.4 days and regularly aggregates up to 8mm (0.31") of precipitation.

What is the sea temperature in January in Sanya?

In Sanya, in January, the average water temperature is 23.4°C (74.1°F). A person's cold intolerance, with sunshine, wind, and air temperature, are essential factors for enjoying swimming in 23.4°C (74.1°F) water.

How many hours of daylight does Sanya have in January?

In January, the average day length in Sanya is 11h and 11min.

What time are sunrise and sunset in January in Sanya?

On the first day of January, sunrise is at 07:13 and sunset at 18:17. On the last day of the month, sunrise is at 07:15 and sunset at 18:35 CST.

What are the months with the least sunshine in Sanya?

The months with the least sunshine in Sanya are January through March, with an average of 5h of sunshine.

How long on average sun shines in January in Sanya?

In Sanya, the average sunshine duration in January is 5h.

What is the UV index reading in January in Sanya?

In Sanya, the average daily maximum UV index in January is 9. A UV Index value of 8 to 10 symbolizes a very high health threat from unsafe exposure to Sun's UV rays.
Average rainfall days
Average sunshine
Average UV index

Average temperature in January
Sanya, China

Average temperature in January - Sanya, China
  • Average high temperature in January: 26.1°C

The warmest month (with the highest average high temperature) is May (32°C).
The month with the lowest average high temperature is January (26.1°C).

  • Average low temperature in January: 18.5°C

The month with the highest average low temperature is June (26.1°C).
The coldest month (with the lowest average low temperature) is January (18.5°C).

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Average rainfall in January
Sanya, China

Average rainfall in January - Sanya, China
  • Average rainfall in January: 8mm

The wettest month (with the highest rainfall) is September (251.4mm).
The driest month (with the least rainfall) is January (8mm).

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Average rainfall days in January
Sanya, China

Average rainfall days in January - Sanya, China
  • Average rainfall days in January: 3.4 days

The month with the highest number of rainy days is September (17 days).
The month with the least rainy days is January (3.4 days).

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Average sea temperature in January
Sanya, China

Average sea temperature in January - Sanya, China
  • Average sea temperature in January: 23.4°C

The best month for swimming (with the highest average sea temperature) is July (29.8°C).
The coldest month (with the lowest average sea temperature) is February (23°C).

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Average daylight in January /
Average sunshine in January
Sanya, China

Average daylight in January / Average sunshine in January - Sanya, China
  • Average daylight in January: 11h and 11min

The month with the longest days is June (Average daylight: 13h and 13min).
The month with the shortest days is December (Average daylight: 11h and 4min).

  • Average sunshine in January: 5h

The months with the most sunshine are May and July (Average sunshine: 7h).
The months with the least sunshine are January, February and March (Average sunshine: 5h).

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Average UV index in January
Sanya, China

Average UV index in January - Sanya, China
  • Average UV index in January: 9

The months with the highest UV index are March, April, May, June, July, August and September (UV index 12).
The month with the lowest UV index is December (UV index 8).

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