Weather in December
Sea temperature
In Kalk Bay, South Africa, the average seawater temperature in December is 18.7°C (65.7°F).Note: For most individuals, swimming in 18.7°C (65.7°F) is not a pleasurable activity. Breathing becomes progressively more difficult as water temperature declines below 21°C (69.8°F).
Daylight
With an average of 14h and 24min of daylight, December has the longest days of the year.On the first day of the month, sunrise is at 05:27 and sunset at 19:43. On the last day of December, sunrise is at 05:37 and sunset at 20:01 SAST.
Updated: Jan 25, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is the water in December in Kalk Bay?
In Kalk Bay, South Africa, the average seawater temperature in December is 18.7°C (65.7°F). For most, swimming in 18.7°C (65.7°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).
When are the longest days in Kalk Bay?
With an average of 14h and 24min of daylight, December has the longest days of the year in Kalk Bay, South Africa.
How many hours of daylight does Kalk Bay have in December?
In Kalk Bay, the average day length in December is 14h and 23min.
When is the sunrise / sunset in December in Kalk Bay?
In December, on the first day of the month, sunrise is at 05:27 and sunset at 19:43. On the last day of the month, in Kalk Bay, sunrise is at 05:37 and sunset at 20:01 SAST.
Average sea temperature in December
Kalk Bay, South Africa
- Average sea temperature in December: 18.7°C
The best month for swimming (with the highest average sea temperature) is January (19.5°C).
The coldest months (with the lowest average sea temperature) are July, August and September (15.4°C).
Average daylight in December
Kalk Bay, South Africa
- Average daylight in December: 14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
Kalk Bay, South Africa
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