December weather forecast
Mossel Bay, South Africa

Weather in December

The first month of the summer, December, is still a pleasant month in Mossel Bay, South Africa, with an average temperature varying between 18°C (64.4°F) and 22°C (71.6°F).

Temperature

In Mossel Bay, the average high-temperature in December is relatively the same as in November - a still agreeable 22°C (71.6°F). In December, in Mossel Bay, the average low-temperature is 18°C (64.4°F).

Rainfall

The months with the least rainfall in Mossel Bay are January and December with 30mm (1.18") of accumulated rain.

Sea temperature

In Mossel Bay, South Africa, the average seawater temperature in December is 19.8°C (67.6°F).
Note: For swimming, a surface water temperature of 19.8°C (67.6°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

Daylight

December has the longest days of the year, with an average of 14h and 23min of daylight.
On the first day of December, sunrise is at 05:12 and sunset at 19:28. On the last day of the month, sunrise is at 05:22 and sunset at 19:46 SAST.
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FAQ

What is the temperature in December in Mossel Bay?

In December, in Mossel Bay, South Africa, the average high-temperature is 22°C (71.6°F), and the average low-temperature is 18°C (64.4°F).

What is the driest month in Mossel Bay?

The months with the least rainfall are January and December with 30mm (1.18") of accumulated rain.

How much does it rain in Mossel Bay in December?

In Mossel Bay, in December, 30mm (1.18") of precipitation is typically accumulated.

How cold is the water in December in Mossel Bay?

In Mossel Bay, South Africa, the average seawater temperature in December is 19.8°C (67.6°F). For swimming, a surface water temperature of 19.8°C (67.6°F) is not enjoyable for the majority. It is not considered safe, as controlling breathing becomes progressively more difficult as water temperature decreases below 21°C (69.8°F).

When are the longest days in Mossel Bay?

December has the longest days of the year, with an average of 14h and 23min of daylight.

How many hours of daylight does Mossel Bay have in December?

In Mossel Bay, the average day length in December is 14h and 23min.

When are sunrise and sunset in December in Mossel Bay?

On the first day of December in Mossel Bay, sunrise is at 05:12 and sunset at 19:28. On the last day of the month, sunrise is at 05:22 and sunset at 19:46 SAST.

Average temperature in December
Mossel Bay, South Africa

Average temperature in December - Mossel Bay, South Africa
  • Average high temperature in December: 22°C

The warmest months (with the highest average high temperature) are January and February (23°C).
The months with the lowest average high temperature are August and September (17°C).

  • Average low temperature in December: 18°C

The months with the highest average low temperature are January and February (19°C).
The coldest month (with the lowest average low temperature) is August (12°C).

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Average rainfall in December
Mossel Bay, South Africa

Average rainfall in December - Mossel Bay, South Africa
  • Average rainfall in December: 30mm

The wettest months (with the highest rainfall) are March and September (41mm).
The driest months (with the least rainfall) are January and December (30mm).

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Average sea temperature in December
Mossel Bay, South Africa

Average sea temperature in December - Mossel Bay, South Africa
  • Average sea temperature in December: 19.8°C

The best month for swimming (with the highest average sea temperature) is January (20.7°C).
The coldest month (with the lowest average sea temperature) is August (16°C).

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Average daylight in December
Mossel Bay, South Africa

Average daylight in December - Mossel Bay, South Africa
  • Average daylight in December: 14h and 23min

The month with the longest days is December (Average daylight: 14h and 23min).
The month with the shortest days is June (Average daylight: 9h and 55min).

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