December weather forecast
Swakopmund, Namibia

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Weather in December

December brings the highest temperatures of the year to Swakopmund, reaching up to 21.2°C (70.2°F), marking the onset of summer. However, the rise in temperature is accompanied by an increase in humidity. This month also experiences the longest daylight hours amongst all the months. The sea temperature peaks, making it ideal for water activities. Adding to the summery feel are stronger winds, contributing to the overall dynamism of the climatic conditions.

Temperature

In December, Swakopmund experiences a minor shift in meteorological conditions with average high-temperatures marked at a still agreeable 21.2°C (70.2°F), closely mirroring the climate in November. During December, the nighttime temperatures align closely with the daytime averages, measuring an enjoyable 17°C (62.6°F).

Humidity

In Swakopmund, the average relative humidity in December is 76%.

Rainfall

In Swakopmund, during December, the rain falls for 2.5 days and regularly aggregates up to 5mm (0.2") of precipitation. In Swakopmund, during the entire year, the rain falls for 24.7 days and collects up to 42mm (1.65") of precipitation.

Sea temperature

In December, the average sea temperature in Swakopmund, Namibia, is 16.7°C (62.1°F).
Note: In water with a temperature of 16.7°C (62.1°F), most people do not enjoy swimming. As the temperature descends from 21°C (69.8°F) to 15°C (59°F), breathing becomes increasingly difficult to control.

Daylight

December has the longest days of the year, with an average of 13h and 30min of daylight.
On the first day of the month, sunrise is at 06:08 and sunset at 19:33. On the last day of December, sunrise is at 06:19 and sunset at 19:49 CAT.

Sunshine

The months with the most sunshine are August through December, with an average of 9.9h of sunshine.

UV index

The months with the lowest UV index in Swakopmund are May through December, with an average maximum UV index of 5. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.
Note: The daily high UV index of 5 in December translates into this advice:
Be careful. Light complexion individuals might get burns in fewer than 30 minutes. When the Sun is at its strongest around midday, find shade and limit exposure. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays.
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Frequently asked questions

What is the usual temperature for Swakopmund in December?

An average high-temperature, in December, in Swakopmund, is 21.2°C (70.2°F) and the average low-temperature is 17°C (62.6°F).

What is the average humidity in December in Swakopmund?

In Swakopmund, the average relative humidity in December is 76%.

How many days does it rain in December in Swakopmund?

In Swakopmund, in December, it is raining for 2.5 days, with typically 5mm (0.2") of accumulated precipitation.

What is the sea temperature in December in Swakopmund?

In Swakopmund, Namibia, the average seawater temperature in December is 16.7°C (62.1°F). Swimming in 16.7°C (62.1°F) is not enjoyable for the majority. Controlling breathing becomes progressively more difficult as surface water temperature decreases below 21°C (69.8°F).

When are the longest days in Swakopmund?

December has the longest days of the year, with an average of 13h and 30min of daylight.

What is the average length of the day in December in Swakopmund?

In Swakopmund, the average day length in December is 13h and 30min.

When are sunrise and sunset in December in Swakopmund?

In December, on the first day of the month, sunrise is at 06:08 and sunset at 19:33. On the last day of the month, sunrise is at 06:19 and sunset at 19:49 CAT.

What are the months with the most sunshine in Swakopmund?

The months with the most sunshine in Swakopmund, Namibia, are August through December, with an average of 9.9h of sunshine.

How long on average sun shines in December in Swakopmund?

In Swakopmund, Namibia, the average sunshine duration in December is 9.9h.

What is the month with the lowest UV index in Swakopmund?

May through December, with an average maximum UV index of 5, are months with the lowest UV index in Swakopmund.

How high is the UV index in December in Swakopmund?

In Swakopmund, the average daily maximum UV index in December is 5. A UV Index reading of 3 to 5 represents a moderate vulnerability from unprotected exposure to UV radiation.

Average temperature in December
Swakopmund, Namibia

Average temperature in December - Swakopmund, Namibia
  • Average high temperature in December: 21.2°C

The warmest month (with the highest average high temperature) is April (23.5°C).
The months with the lowest average high temperature are September and October (20°C).

  • Average low temperature in December: 17°C

The month with the highest average low temperature is March (19.3°C).
The coldest months (with the lowest average low temperature) are August and September (14°C).

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Average pressure in December
Swakopmund, Namibia

Average pressure in December - Swakopmund, Namibia
  • Average pressure in December: 1012.1mbar

The month with the highest atmospheric pressure is July (1018.2mbar).
The month with the lowest atmospheric pressure is February (1011.2mbar).

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Average wind speed in December
Swakopmund, Namibia

Average wind speed in December - Swakopmund, Namibia
  • Average wind speed in December: 16.3km/h

The windiest month (with the highest average wind speed) is October (17.7km/h).
The calmest month (with the lowest average wind speed) is January (14.3km/h).

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Average humidity in December
Swakopmund, Namibia

Average humidity in December - Swakopmund, Namibia
  • Average humidity in December: 76%

The month with the highest relative humidity is January (78%).
The month with the lowest relative humidity is July (54%).

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Average rainfall in December
Swakopmund, Namibia

Average rainfall in December - Swakopmund, Namibia
  • Average rainfall in December: 5mm

The wettest months (with the highest rainfall) are February and March (10mm).
The driest months (with the least rainfall) are June, July and August (0mm).

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Average rainfall days in December
Swakopmund, Namibia

Average rainfall days in December - Swakopmund, Namibia
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is March (5.7 days).
The month with the least rainy days is August (0.2 days).

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Average sea temperature in December
Swakopmund, Namibia

Average sea temperature in December - Swakopmund, Namibia
  • Average sea temperature in December: 16.7°C

The best month for swimming (with the highest average sea temperature) is February (19.1°C).
The coldest month (with the lowest average sea temperature) is August (13.6°C).

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Average daylight in December /
Average sunshine in December
Swakopmund, Namibia

Average daylight in December / Average sunshine in December - Swakopmund, Namibia
  • Average daylight in December: 13h and 3min

The month with the longest days is December (Average daylight: 13h and 30min).
The month with the shortest days is June (Average daylight: 10h and 48min).

  • Average sunshine in December: 9h and 5min

The months with the most sunshine are August, September, October, November and December (Average sunshine: 9h and 54min).
The month with the least sunshine is April (Average sunshine: 9h and 36min).

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Average sunshine days in December
Swakopmund, Namibia

Average sunshine days in December - Swakopmund, Namibia
  • Average sunshine days in December: 27.7 days

The months with the most sunshine days are July and August (30.5 days).
The month with the least sunshine days is February (22.6 days).

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Average UV index in December
Swakopmund, Namibia

Average UV index in December - Swakopmund, Namibia
  • Average UV index in December: 5

The months with the highest UV index are January, February, March and April (UV index 6).
The months with the lowest UV index are May, June, July, August, September, October, November and December (UV index 5).

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Average cloud cover in December
Swakopmund, Namibia

Average cloud cover in December - Swakopmund, Namibia
  • Average cloud cover in December: 12

The months with the most cloud cover are January and February (Cloud cover 17).
The months with the least cloud cover are May, June and July (Cloud cover 3).

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Average visibility in December
Swakopmund, Namibia

Average visibility in December - Swakopmund, Namibia
  • Average visibility in December: 10km

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).

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Swakopmund, Namibia

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