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Water Temperature in the South China Sea in Guandu, China: Current, Historical Data and Forecast

On this page, you will find comprehensive information about the sea temperature in Guandu in China, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.

Current Water Temperature in Guandu

26.9°C

TODAY

26.8°C

YESTERDAY

27.2°C

A WEEK AGO

All water temperature data is now available in our official mobile apps — for iOS and Android.

Analysis, Historical Data, and Forecast of Water Temperature

Today sea water temperature in the South China Sea in Guandu is 26.9°C. This is very warm water, allowing for extended stays without any discomfort. Swimming in these conditions will be particularly enjoyable, making it the ideal temperature range for those who want to relax in the sea. Additionally, water in this temperature range is suitable for children and elderly people, as it is comfortable for prolonged stays.

It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.

Water Temperature Chart for South China Sea in Guandu Over the Last 30 Days

The water temperature in Guandu today is lower than both a week ago and a month ago. Today's sea temperature is generally in line with historical values for this day.

According to our forecast, the sea temperature in Guandu will remain nearly unchanged in the coming days, its value will be 27.6°C.

Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.

Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts across China to enhance accuracy.

Water temperature data for Guandu and nearby towns and resorts is gathered from various sources, including buoys and satellite sea and ocean surface maps provided by the NOAA agency. We also incorporate data from local authorities in each specific location worldwide to ensure more accurate temperature readings.

Table of Daily Sea Temperature Data

Date	Current	Average	Forecast
May 13	27.2°C	27.5°C
May 14	27.2°C	27.8°C
May 15	26.6°C	27.5°C
May 16	26.7°C	27.8°C
May 17	26.4°C	28.0°C
May 18	26.2°C	28.0°C
May 19	26.8°C	28.0°C
May 20	26.7°C	28.0°C
May 21		28.0°C	27.0°C
May 22		28.0°C	27.1°C
May 23		28.0°C	27.2°C
May 24		27.5°C	27.2°C
May 25		28.0°C	27.3°C
May 26		27.8°C	27.4°C
May 27		28.3°C	27.5°C
May 28		28.0°C	27.6°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Sea Temperature in Guandu Throughout the Year

Throughout the year, the sea temperature in Guandu exceeds 77°F (25°C) for 194 days, exceeds 72°F (22°C) for 246 days, and exceeds 64°F (18°C) for 348 days.

Below is the annual chart of sea temperature changes in the South China Sea in Guandu.

January

Minimum	Average	Maximum
16°C	18.5°C	21°C

February

Minimum	Average	Maximum
16°C	18.5°C	21°C

March

Minimum	Average	Maximum
17°C	20°C	23°C

April

Minimum	Average	Maximum
19°C	23°C	27°C

May

Minimum	Average	Maximum
24°C	27.5°C	31°C

June

Minimum	Average	Maximum
27°C	29°C	31°C

July

Minimum	Average	Maximum
27°C	30°C	33°C

August

Minimum	Average	Maximum
27°C	29.5°C	32°C

September

Minimum	Average	Maximum
26°C	29°C	32°C

October

Minimum	Average	Maximum
23°C	27°C	31°C

November

Minimum	Average	Maximum
22°C	24.5°C	27°C

December

Minimum	Average	Maximum
17°C	21°C	25°C

Monthly Water Temperature Histogram for South China Sea in Guandu

You can explore detailed data on how the water temperature in Guandu varies each month:

Guandu Weather

MAY 21

27°C / 30°C

light rain

humidity: 86% | wind: 7 km/h

MAY 22

27°C / 30°C

moderate rain

humidity: 84% | wind: 4 km/h

MAY 23

25°C / 30°C

moderate rain

humidity: 81% | wind: 4 km/h

MAY 24

24°C / 28°C

overcast clouds: 85-100%

humidity: 68% | wind: 5 km/h

Sea Temperature in the South China Sea in Guandu: General Trends and Swimming Opportunities

Original name

官渡区

The Local Time

06:15

Time Zone

UTC+8

Sunrise

05:57

Sunset

19:10

Length of the day

13 h 12 m

The coastal region of Guangdong, China has a subtropical maritime climate, characterized by hot, humid summers and mild to cool winters. The area experiences adequate rainfall throughout the year, with typhoons frequently occurring in late summer and early autumn.

Guandu is located in Asia in the Northern Hemisphere at a latitude of 21 degrees, along the shores of the South China Sea. Guandu lies within the Guangdong in China.

The average annual daytime air temperature in Guandu is 28°C (82°F), with the average nighttime temperature being 20°C (68°F). The highest average daily temperature occurs in July, reaching 32°C (89°F), while the lowest is in January at 22°C (71°F). As for nighttime temperatures, the minimum average temperature of 12°C (53°F) is recorded in January, and the maximum is in July, reaching 26°C (79°F).

According to historical data, Guandu experiences 126 rainy days per year, which accounts for 35 percent of all days in the year. On average, there are 10 rainy days each month. The wettest month is August, with 18 rainy days and 328 mm (12.9 inches) of precipitation, while the driest month is January, which typically has 4 rainy days and only 28 mm (1.1 inches) of precipitation.

The average annual water temperature in South China Sea in Guandu is 25°C (77°F). In January, the water reaches its lowest point of the year at 16°C (61°F), while in July, it peaks at 33°C (91°F). The months suitable for comfortable beach vacations and swimming in the South China Sea are May, June, July, August, September, October, and November. During this period, the water temperature stays above 20°C (68°F) and can reach up to 33°C (91°F) on some days.

Geographical Location of Guandu

Nearby Cities

Zhanjiang

Frequently Asked Questions About Guandu and its Water Temperatures

What is the current sea temperature in Guandu?

The water temperature today in the South China Sea in Guandu is 80°F (26.9°C).

In which months is the water temperature in Guandu comfortable for swimming?

The water temperature in the South China Sea in Guandu is comfortable for swimming and beach vacations in May, June, July, August, September, October, and November.

What is the water temperature in Guandu during the winter?

The water temperature in the South China Sea in Guandu during the winter ranges from 16°C to 25°C (61°F to 77°F).

What is the water temperature in Guandu during the spring?

The water temperature in the South China Sea in Guandu during the spring ranges from 17°C to 31°C (63°F to 88°F).

What is the water temperature in Guandu during the summer?

The water temperature in the South China Sea in Guandu during the summer ranges from 27°C to 33°C (81°F to 91°F).

What is the water temperature in Guandu during the fall?

The water temperature in the South China Sea in Guandu during the fall ranges from 22°C to 32°C (72°F to 90°F).

Is it possible to swim in the sea in Guandu year-round?

No, it is not possible to swim in the South China Sea in Guandu year-round, the months suitable for comfortable swimming are May, June, July, August, September, October, and November.

What sea temperatures can I expect in Guandu in the next month?

In June, the water temperature in the South China Sea in Guandu will range between 81°F (27°C) and 88°F (31°C)