Sea Temperature in Arniston in December

Complete information on the sea temperature range in the Indian Ocean in Arniston in December. Historical daily data. Climate details for December. Tips on swimming conditions and beach relaxation in Arniston. 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 Arniston in December

17°C

MINIMUN

19.5°C

AVERAGE

22°C

MAXIMUM

Historical Data of Water Temperature in December in Arniston

Water Temperature Chart for Indian Ocean in Arniston in December

Sea Temperature Table in Arniston in December Over the Past Years

Day	2024	2023	2022	Average
Dec 1	19°C	19°C	19°C	18.8°C
Dec 2	19°C	19°C	19°C	19.0°C
Dec 3	19°C	19°C	20°C	19.0°C
Dec 4	19°C	19°C	19°C	18.8°C
Dec 5	19°C	19°C	20°C	19.0°C
Dec 6	19°C	19°C	19°C	18.8°C
Dec 7	19°C	19°C	20°C	19.3°C
Dec 8	20°C	19°C	20°C	19.5°C
Dec 9	19°C	20°C	20°C	19.8°C
Dec 10	20°C	20°C	20°C	19.8°C
Dec 11	20°C	19°C	20°C	19.5°C
Dec 12	20°C	20°C	19°C	19.5°C
Dec 13	21°C	20°C	20°C	20.0°C
Dec 14	21°C	20°C	20°C	20.0°C
Dec 15	20°C	19°C	20°C	19.5°C
Dec 16	21°C	19°C	20°C	19.5°C
Dec 17	20°C	19°C	20°C	19.5°C
Dec 18	20°C	20°C	20°C	19.5°C
Dec 19	19°C	20°C	20°C	19.5°C
Dec 20	20°C	20°C	20°C	19.5°C
Dec 21	19°C	20°C	20°C	19.3°C
Dec 22	20°C	20°C	20°C	19.5°C
Dec 23	20°C	20°C	20°C	19.5°C
Dec 24	20°C	20°C	20°C	19.5°C
Dec 25	19°C	20°C	20°C	19.3°C
Dec 26	20°C	21°C	21°C	20.0°C
Dec 27	20°C	20°C	20°C	19.5°C
Dec 28	20°C	20°C	20°C	19.5°C
Dec 29	21°C	19°C	21°C	20.0°C
Dec 30	21°C	19°C	21°C	20.0°C

Arniston Climate and Swimming Opportunities in December

24°C

Average Day Air Temperature

15°C

Average Night Air Temperature

21 mm

Precipitation Amount per Month

6 days

Number of Rainy Days

14 hrs

Daylight
per Day

10 hrs

Sunshine
per Day

14 km/h

Average Wind Speed

70%

Average
humidity

Arniston lies within the Western Cape in South Africa. The average daytime temperature in Arniston in December is 24°C (76°F), while the nighttime average is 15°C (58°F). There are typically six rainy days during the month, with a total precipitation of 21 mm (0.8 inches). The daylight duration in December in Arniston is 14 hours, with an average of 10 hours of sunshine per day. The average wind speed in December is 14 km/h (9 mph), and the humidity level is around 70%.

The water temperature in Arniston in December ranges from 18°C to 20°C (64°F to 68°F). At the beginning of the month, the average temperature is around 19°C (66°F), shifting to 20°C (68°F) by mid-December and reaching 20°C (68°F) in the last ten days. Overall, the average sea temperature in Arniston for December is 19°C (66°F). Very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.

Sea Temperature in December in Nearby Cities

Frequently Asked Questions About Water Temperatures in December in Arniston

What is the sea temperature in Arniston in December?

The water temperature in the Indian Ocean in Arniston in December ranges from 18°C to 20°C (64°F to 68°F).

Is it possible to swim in the Indian Ocean in Arniston in December?

The average sea temperature in Arniston in December is 19°C (66°F), and the air temperature is 24°C (76°F), so very comfortable swimming conditions. The water is fresh but not too cold, and the air temperature is pleasant.