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Sea Temperature in Ha Long in December
Complete information on the sea temperature range in the South China Sea in Ha Long in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Ha Long. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Water Temperature Range in Ha Long in December
17°C
MINIMUN
21.5°C
AVERAGE
26°C
MAXIMUM
Historical Data of Water Temperature in December in Ha Long
Water Temperature Chart for South China Sea in Ha Long in December
Sea Temperature Table in Ha Long in December Over the Past Years
Day | 2024 | 2023 | 2022 | Average |
---|---|---|---|---|
Dec 1 | 23°C | 23°C | 25°C | 23.5°C |
Dec 2 | 22°C | 24°C | 26°C | 23.8°C |
Dec 3 | 23°C | 23°C | 25°C | 23.3°C |
Dec 4 | 23°C | 23°C | 24°C | 23.3°C |
Dec 5 | 23°C | 24°C | 25°C | 23.5°C |
Dec 6 | 24°C | 23°C | 24°C | 23.5°C |
Dec 7 | 24°C | 22°C | 25°C | 23.3°C |
Dec 8 | 24°C | 24°C | 22°C | 23.5°C |
Dec 9 | 23°C | 24°C | 22°C | 23.0°C |
Dec 10 | 22°C | 22°C | 23°C | 22.3°C |
Dec 11 | 22°C | 22°C | 23°C | 22.5°C |
Dec 12 | 23°C | 23°C | 23°C | 23.0°C |
Dec 13 | 22°C | 23°C | 22°C | 22.5°C |
Dec 14 | 22°C | 24°C | 22°C | 22.8°C |
Dec 15 | 22°C | 23°C | 22°C | 22.3°C |
Dec 16 | 22°C | 23°C | 21°C | 22.0°C |
Dec 17 | 22°C | 24°C | 21°C | 22.5°C |
Dec 18 | 22°C | 23°C | 21°C | 22.3°C |
Dec 19 | 21°C | 23°C | 21°C | 21.8°C |
Dec 20 | 21°C | 23°C | 21°C | 21.8°C |
Dec 21 | 21°C | 22°C | 21°C | 21.5°C |
Dec 22 | 20°C | 23°C | 20°C | 21.0°C |
Dec 23 | 20°C | 22°C | 21°C | 21.0°C |
Dec 24 | 20°C | 22°C | 21°C | 21.0°C |
Dec 25 | 19°C | 22°C | 20°C | 20.5°C |
Dec 26 | 19°C | 22°C | 19°C | 20.3°C |
Dec 27 | 20°C | 21°C | 20°C | 20.5°C |
Dec 28 | 20°C | 20°C | 20°C | 20.3°C |
Dec 29 | 20°C | 20°C | 20°C | 20.3°C |
Dec 30 | 20°C | 21°C | 20°C | 20.5°C |



Ha Long Climate and Swimming Opportunities in December
22°C
Average Day Air Temperature
15°C
Average Night Air Temperature
21 mm
Precipitation Amount per Month
5 days
Number of Rainy Days
11 hrs
Daylight
per Day
4 hrs
Sunshine
per Day
10 km/h
Average Wind Speed
78%
Average
humidity
Ha Long lies within in Vietnam. The average daytime temperature in Ha Long in December is 22°C (71°F), while the nighttime average is 15°C (59°F). There are typically five rainy days during the month, with a total precipitation of 21 mm (0.8 inches). The daylight duration in December in Ha Long is 11 hours, with an average of 4 hours of sunshine per day. The average wind speed in December is 10 km/h (6 mph), and the humidity level is around 78%.
The water temperature in Ha Long in December ranges from 20°C to 24°C (68°F to 75°F). At the beginning of the month, the average temperature is around 24°C (75°F), shifting to 23°C (73°F) by mid-December and reaching 21°C (70°F) in the last ten days. Overall, the average sea temperature in Ha Long for December is 22°C (72°F). Optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.
Frequently Asked Questions About Water Temperatures in December in Ha Long
What is the sea temperature in Ha Long in December?
The water temperature in the South China Sea in Ha Long in December ranges from 20°C to 24°C (68°F to 75°F).
Is it possible to swim in the South China Sea in Ha Long in December?
The average sea temperature in Ha Long in December is 22°C (72°F), and the air temperature is 22°C (71°F), so optimal swimming conditions. The water is warm, and the air is comfortable for drying off and sunbathing.