Hermanus

Overberg Weather in December

Average temperatures, rainfall, sunshine and the best places to visit in the Overberg, South Africa in December.

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Hermanus Gansbaai Swellendam Kleinmond

Considering a trip to the Overberg, South Africa this December and wondering about the expected weather conditions? Find all the crucial information you need right here, addressing your question:

What to Expect in the Overberg in December

The Overberg, South Africa is a region in South Africa. December in the Overberg generally has warm temperatures, with precipitation levels ranging from low to moderate.

Temperatures

The average maximum temperatures are warm and range from 22°C (72°F) in Kleinmond to 29°C (84°F) in Swellendam. Nighttime temperatures generally drop to 15°C (59°F) in Swellendam and 17°C (63°F) in Kleinmond.

To learn more about the conditions in specific areas of the Overberg, South Africa, check out the map below.

Precipitation

In December, precipitation varies across different areas. From low rainfall in Struisbaai with an average of 25 mm (1 in) to moderate rainfall in Swellendam with 32 mm (1.3 in).

Explore the Overberg by month

Pick a month to see the average temperature, rainfall and sunshine in the Overberg — and find the best time to visit. (based on Hermanus)

January24°C (75°F) February25°C (77°F) March24°C (75°F) April22°C (72°F) May20°C (68°F) This monthJune18°C (64°F) July17°C (63°F) August17°C (63°F) September18°C (64°F) October20°C (68°F) November21°C (70°F) December23°C (73°F)
Best Time to Visit the Overberg →

Best Places to Visit in the Overberg in December

Click on a destination dot for more details. Toggle the map to compare temperatures or precipitation across the Overberg.

Conditions Temperatures Precipitation
perfect weather
pleasant
tolerable
unpleasant
poor

Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).

Popular Destinations in the Overberg

What is the weather like in December for some of the most popular destinations in the Overberg, South Africa?

Temperature range in the Overberg (December)

Precipitation variation in the Overberg (December)

Hermanus

In December Hermanus generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 17°C (63°F) and low monthly rainfall. So on average the conditions are perfect that month.

« November
December
January »
November
December
January
Max temperature
21°C (70°F)
23°C (73°F)
24°C (75°F)
Min temperature
15°C (59°F)
17°C (63°F)
18°C (64°F)
Monthly rainfall
45 mm (1.8 in)
30 mm (1.2 in)
28 mm (1.1 in)
Monthly rainy days
7 days
6 days
6 days
Weather conditions
perfect
perfect
perfect
Climate in Hermanus →

Gansbaai

In December Gansbaai generally has high temperatures with maximum daytime temperatures around 23°C (73°F), minimum nighttime temperatures around 17°C (63°F) and low monthly rainfall. So on average the conditions are perfect that month.

« November
December
January »
November
December
January
Max temperature
21°C (70°F)
23°C (73°F)
24°C (75°F)
Min temperature
15°C (59°F)
17°C (63°F)
18°C (64°F)
Monthly rainfall
42 mm (1.7 in)
29 mm (1.1 in)
27 mm (1.1 in)
Monthly rainy days
7 days
7 days
6 days
Weather conditions
perfect
perfect
perfect
Climate in Gansbaai →

Swellendam

In December Swellendam generally has high temperatures with maximum daytime temperatures around 29°C (84°F), minimum nighttime temperatures around 15°C (59°F) and moderate monthly rainfall. So on average the conditions are perfect that month.

« November
December
January »
November
December
January
Max temperature
27°C (81°F)
29°C (84°F)
30°C (86°F)
Min temperature
13°C (55°F)
15°C (59°F)
17°C (63°F)
Monthly rainfall
43 mm (1.7 in)
32 mm (1.3 in)
31 mm (1.2 in)
Monthly rainy days
7 days
5 days
5 days
Weather conditions
perfect
perfect
pleasant
Climate in Swellendam →

Kleinmond

In December Kleinmond generally has high temperatures with maximum daytime temperatures around 22°C (72°F), minimum nighttime temperatures around 17°C (63°F) and low monthly rainfall. So on average the conditions are perfect that month.

« November
December
January »
November
December
January
Max temperature
21°C (70°F)
22°C (72°F)
24°C (75°F)
Min temperature
15°C (59°F)
17°C (63°F)
18°C (64°F)
Monthly sun hours
310 hours
334 hours
338 hours
Monthly rainfall
46 mm (1.8 in)
30 mm (1.2 in)
29 mm (1.1 in)
Monthly rainy days
6 days
6 days
5 days
Weather conditions
perfect
perfect
perfect
Climate in Kleinmond →

Bredasdorp

In December Bredasdorp generally has high temperatures with maximum daytime temperatures around 27°C (81°F), minimum nighttime temperatures around 16°C (61°F) and low monthly rainfall. So on average the conditions are perfect that month.

« November
December
January »
November
December
January
Max temperature
25°C (77°F)
27°C (81°F)
27°C (81°F)
Min temperature
14°C (57°F)
16°C (61°F)
18°C (64°F)
Monthly rainfall
43 mm (1.7 in)
30 mm (1.2 in)
28 mm (1.1 in)
Monthly rainy days
8 days
7 days
7 days
Weather conditions
perfect
perfect
perfect
Climate in Bredasdorp →

Is your destination not in the list? Have a look at all destinations in the Overberg, in South Africa.

In our records: South Africa December extremes

Notable December records observed across cities in South Africa in our climate database (1976 – 2026). Historic readings can vary in quality, so treat these as illustrative.

  • In our records, the warmest December day in South Africa reached 44°C (111°F) in Kruger National Park on December 13, 2024.

Popular cities in December

Day & night temperatures, rainfall and average weather in the Overberg in December.

City Weather Day temp Night temp Rainfall
Hermanus 23°C (73°F) 17°C (63°F) 30 mm (1.2 in)
Gansbaai 23°C (73°F) 17°C (63°F) 29 mm (1.1 in)
Swellendam 29°C (84°F) 15°C (59°F) 32 mm (1.3 in)
Kleinmond 22°C (72°F) 17°C (63°F) 30 mm (1.2 in)
Bredasdorp 27°C (81°F) 16°C (61°F) 30 mm (1.2 in)
Struisbaai 24°C (75°F) 18°C (64°F) 25 mm (1 in)

The Overberg weather in December: frequently asked questions

What is the weather like in the Overberg, South Africa in December?

December in the Overberg, South Africa brings perfect weather. In Hermanus, daytime temperatures are typically around 23°C (73°F) and nighttime lows hover near 17°C (63°F).

What is the average temperature in the Overberg, South Africa in December?

Daytime temperatures in Hermanus peak at roughly 23°C (73°F) in December, dropping to about 17°C (63°F) overnight.

Does the Overberg, South Africa get a lot of rain in December?

Not particularly. Hermanus averages just 30 mm (1.2 in) of rain in December, making it a mostly dry month for the Overberg, South Africa.

Is December a Good Time to Visit the Overberg, South Africa?

We consider December to be one of the best times to travel to the Overberg, South Africa. Typically, the climate in Hermanus is perfect.

Generally speaking, the best visiting conditions can be found in January, February, March, April, May, October, November and December offering mostly perfect weather in Hermanus. On the other hand, the months of July and August tend to have tolerable weather conditions.

Interested in more climate information?

We have much more information about the climate in the Overberg.

Weather and climate has detailed information for every country in the world. Are you going to South Africa? Get detailed historical weather averages for many cities in South Africa.

Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.

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