Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average sea temperature in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
December's climate shows a minor adjustment in average high-temperatures to a still pleasant 21.2°C (70.2°F) from November's 20.7°C (69.3°F). During December, Swakopmund's temperature shows a minor deviation from daytime highs, falling to a steady low-temperature average of 17°C (62.6°F).Humidity
The average relative humidity in December is 76%.Rainfall
In Swakopmund, in December, it is raining for 2.5 days, with typically 5mm (0.2") of accumulated precipitation. Throughout the year, there are 24.7 rainfall days, and 42mm (1.65") of precipitation is accumulated.Sea temperature
In Swakopmund, the average seawater temperature in December is 16.7°C (62.1°F).Note: Swimming is not a pleasurable activity for most people when the water temperature is 16.7°C (62.1°F). Breathing control gets harder as the water temperature drops from 21°C (69.8°F) to 15°C (59°F).
Daylight
The month with the longest days is December, with an average of 13h and 30min of daylight.On the first day of December, 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.
Sunshine
August through December, with an average of 9.9h of sunshine, are months with the most sunshine.UV index
The months with the lowest UV index are May through December, with an average maximum UV index of 5. A UV Index value of 3 to 5 symbolizes a moderate health risk from unsafe exposure to UV radiation for the average person.Note: The daily high UV index of 5 in December translates into this advice:
Exercise caution. The susceptibility of light skin individuals to burns is less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Swakopmund?
What is the average humidity in December?
How many days does it rain in December?
What is the sea water temperature in December?
When are the longest days?
How many hours of daylight does Swakopmund have in December?
What time are sunrise and sunset in December?
What is the month with the most sunshine?
How many hours of sunshine does Swakopmund have in December?
What are the months with the lowest UV index?
How high is the UV index in December?
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).
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).
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).
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%).
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).
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).
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).
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).
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).
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).
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).
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).
Swakopmund, Namibia
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