December Weather in Cape Town, South Africa

Last updated: August 31, 2025

December in Cape Town, South Africa offers a delightful blend of warm weather and vibrant atmosphere. With maximum temperatures reaching 28°C (82°F) and an average of 19°C (66°F), the days are perfect for outdoor exploration. The nights cool down to a pleasant 14°C (58°F), making evenings enjoyable. Although the month sees 26 mm (1.0 in) of precipitation spread over just 5 days, the humidity hovers around 77%, contributing to a lush, tropical feel. December is a splendid time for both locals and tourists to bask in Cape Town's natural beauty and festive spirit.

December Temperature in Cape Town

In December, Cape Town, South Africa, basks in delightful summer warmth, with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 28°C (82°F). This vibrant month typically brings an average temperature of 19°C (66°F), making it one of the hottest times of the year, ideal for outdoor adventures and beach outings. Compared to the preceding months, December clearly exhibits a noticeable transition into the summer season, with warmer nights and pleasantly mild days, inviting both locals and tourists to embrace the city's stunning landscapes and rich cultural experiences. As the festive season approaches, the favorable climate enhances the lively atmosphere, perfect for enjoying Cape Town's renowned outdoor lifestyle.

December Weather in Cape Town: Daily Temperature Highs, Lows, and Averages

The chart illustrates December temperature patterns in Cape Town, showcasing daily minimum, maximum, and average temperatures. It highlights the typical range of temperatures throughout the month, providing insights into weather trends. In Cape Town, December typically has an average temperature of {2}°C ({3}°F), with highs reaching up to {4}°C ({5}°F) and lows dropping to around {6}°C ({7}°F).
JanFebMarAprMayJunJulAugSepOctNovDec686866636058575658616366
Data source: Temperature data for Cape Town generated using information from the Copernicus Climate Change Service.
Choose your preferred temperature unit
The average of daily temperatures (24 hours) calculated across all days in the month.

December Precipitation in Cape Town

In December, Cape Town experiences a moderate shift in precipitation, totaling around 26 mm (1.0 in) over approximately 5 rainy days. This slight increase from the preceding months, which saw November at 33 mm, suggests a gradual transition to the wetter summer season. While December is not among the wettest months, the rain serves to refresh the city’s vibrant landscapes, setting the stage for the lush beauty of the summer ahead. The overall trend indicates that as the year progresses, precipitation and wet days tend to increase, peaking during the winter months, providing a necessary contrast to the drier early-year conditions.

December Precipitation Trends in Cape Town

The chart displays monthly precipitation patterns in Cape Town, with values for each month alongside December’s data, which is highlighted for easy comparison. It shows the amount of precipitation, providing insights into how December’s conditions compare to those of other months. In Cape Town, December typically receives around {2} mm ({3} inches) of precipitation spread over approximately {4} days.
JanFebMarAprMayJunJulAugSepOctNovDec1410243063103957545413326
Data source: Precipitation data for December generated using information from the Copernicus Climate Change Service.
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December Humidity in Cape Town

In December, Cape Town experiences a humidity level of 77%, maintaining a trend of relatively consistent moisture throughout the year. Following a slight dip to 75% in November, the humidity stabilizes as summer approaches, aligning with the increasing warmth of the season. Notably, from the cooler months of May to August, humidity levels hover around the 77% to 80% range, showcasing the city's maritime influence. As winter transitions into summer, Cape Town's humidity remains relatively stable, suggesting an environment that promotes comfort, albeit with the occasional humidity spike seen earlier in the year. This consistency makes Cape Town a unique destination, where the humidity enhances the vibrant summer atmosphere, inviting both locals and visitors to enjoy its coastal splendor.

December Average Humidity in Cape Town

This chart illustrates the average monthly humidity levels in Cape Town, with December’s data highlighted for easy comparison. It shows the fluctuation in humidity throughout the year, helping you understand how conditions vary by season. In December, average humidity in Cape Town is approximately {2}%, offering insight into how humid the weather typically is during this month.
JanFebMarAprMayJunJulAugSepOctNovDec77%80%81%80%78%79%80%77%76%77%75%78%
Data source: Humidity data for December generated using information from the Copernicus Climate Change Service.

December UV Index in Cape Town

As December rolls into Cape Town, the UV Index peaks at an extreme rating of 14, mirroring the blistering levels typically experienced in January. This trend signals a serious warning for sun-seekers, as the burn time shortens to just 10 minutes—a mere blink of an eye under the intense African sun. Following a gradual decline through the milder months of May to September, where the Index dipped to a more manageable 5 and 3, December’s soaring figures remind us of the city's radiant climate during the summer season. As one prepares for outdoor activities, staying informed on the Cape Town UV Index is essential to ensure safe sun exposure.

Maximum UV Index Levels in Cape Town for December

The chart shows the monthly maximum UV Index (UVI) for Cape Town in December, representing the highest UV radiation level. The UVI measures the intensity of ultraviolet radiation from the sun, indicating the potential risk of sunburn and UV-related health issues. In December, the maximum UV index in Cape Town typically reaches {2}, which falls under the {3} exposure category.
JanFebMarAprMayJunJulAugSepOctNovDec141311853469111214
Data source: Cape Town December UVI data generated using information from the Copernicus Climate Change Service.

UV Risk Categories

  •  Extreme (11+): Avoid the sun, stay in shade.
  •  Very High (8-10): Limit sun exposure.
  •  High (6-7): Use SPF 30+ and protective clothing.
  •  Moderate (3-5): Midday shade recommended.
  •  Low (0-2): No protection needed.

December Sunshine in Cape Town

In December, Cape Town truly shines, basking in an impressive 422 hours of sunshine, marking the peak of summer indulgence. This radiant month contrasts sharply with the gloomier winter months, particularly June, which sees only 266 hours of sunlight. As the year progresses to its close, a notable trend emerges: the hours of sun consistently rise from the depths of winter, with a gradual increase peaking in December. This surge from November's already generous 390 hours sets an inviting stage for holiday festivities, beach outings, and vibrant outdoor activities. Thus, December not only highlights a seasonal shift but also reignites the spirit of adventure under the warm South African sun.

Monthly Sunshine Duration in Cape Town: December Highlighted

The December sunshine duration represents the total number of hours Cape Town experiences direct sunlight during the month of December, excluding cloudy or obstructed periods. This chart compares the sunshine duration of December with the other months of the year.
JanFebMarAprMayJunJulAugSepOctNovDec339h358h355h314h292h266h287h311h328h373h390h422h
Data source: Cape Town December Sunshine duration data generated using information from the Copernicus Climate Change Service.

Chance of Sun in Cape Town During December

As December arrives in Cape Town, the likelihood of enjoying sunny weather increases, settling at 60%. While this figure marks a notable rise from the cooler autumn months of April and May, it still falls short of the peak sunshine experienced in January and February, both boasting an impressive 81% chance of clear skies. Interestingly, it represents a slight improvement from the preceding months of November and October, which hover around the 54% mark. This upward trend hints at the onset of summer and the allure of longer days, making December an enticing time for sun-seekers eager to bask in Cape Town's vibrant outdoor atmosphere.

Percentage of Sunny Days in December in Cape Town

The chart illustrates the percentage of sunny days in Cape Town throughout the year, with December highlighted. It highlights the variation in sunshine across each month and provides an overview of the typical frequency of sunny days, offering insights into how often Cape Town experiences clear skies throughout the year.
JanFebMarAprMayJunJulAugSepOctNovDec81%82%52%56%51%54%58%56%58%54%54%60%
Data source: Cape Town December chance of sun data, generated using information from the Copernicus Climate Change Service.

Daylight Hours in Cape Town in December

In Cape Town, South Africa, daylight durations creatively dance through the seasons, culminating in a vibrant 14 hours of daylight in December. As the year unfolds, one can observe a gradual shift: the days lengthen from the 9 hours of June, peaking in December, and then gracefully tapering toward the shorter winter months. This rhythmic cycle not only enhances the beauty of the city's landscapes but also enriches outdoor experiences, inviting locals and visitors alike to bask in the sun-soaked charm throughout summer. The pattern showcases a clear trend of longer days as the year progresses toward the summer solstice, providing ample opportunity to explore and enjoy Cape Town’s stunning scenery.

Average Daylight Hours in Cape Town for December

The chart illustrates the variation in daylight duration in Cape Town throughout the year, with December highlighted. It shows the monthly changes in daylight hours, calculated by summing the hours between sunrise and sunset.
JanFebMarAprMayJunJulAugSepOctNovDec14h 6m13h 17m12h 14m11h 12m10h 20m9h 54m10h 8m10h 53m11h 53m12h 56m13h 52m14h 21m
Data source: Cape Town daylight hours, calculated by summing the hours between sunrise and sunset for each day.

December Winds in Cape Town

In December, Cape Town experiences a refreshing shift in its wind dynamics, with average speeds reaching 6.0 m/s (13 mph). As the year comes to a close, this subtle uptick from November's 5.8 m/s (13 mph) indicates a slight resurgence in the breezy conditions that characterize the city’s summer months. Notably, this period marks a departure from the more tranquil winds of late autumn, where speeds dipped to 4.0 m/s (9 mph) in May. Overall, December's winds are a harbinger of those light summer gusts, gently reminding residents and visitors alike of the vibrant coastal ambiance that Cape Town is celebrated for.

Average December Wind Speed in Cape Town

The chart displays monthly wind speed patterns in Cape Town, with values for each month shown alongside December's data, which is highlighted for easy comparison. It illustrates the average wind speed, offering insights into how December's wind conditions compare to the rest of the year.
JanFebMarAprMayJunJulAugSepOctNovDec6.56.45.35.04.04.64.74.55.75.65.86.0 m/s
Data source: Cape Town December wind data, generated using information from the Copernicus Climate Change Service.

How December Weather in Cape Town Compares to Other Months

Weather in Cape Town varies notably across the year, with each month offering distinct climate conditions. This page compares December’s weather to other months in Cape Town, focusing on differences in temperature, rainfall, humidity, and UV levels.

In December, Cape Town experiences slightly warmer temperatures, with a minimum of 14°C and an average of 19°C, while January sees a minor uptick in the minimum temperature to 15°C and an average of 20°C. Both months share a maximum temperature of 28°C, but December tends to be wetter, receiving 26 mm of rainfall over five days compared to just 14 mm in January over two days. The humidity remains consistent at 77% in both months, allowing for a humid summer atmosphere. For more details on January's weather, check out Cape Town weather in January.

In comparison to December, February in Cape Town experiences slightly warmer temperatures, with average highs reaching 27°C (81°F) compared to December's peak of 28°C (82°F). The minimum temperatures are also marginally higher, at 15°C (59°F) in February versus 14°C (58°F) in December. While both months have relatively similar humidity levels—with February slightly higher at 80% compared to December's 77%—February sees significantly less rainfall, with only 10 mm (0.4 in) of precipitation over just 2 days, compared to December's 26 mm (1.0 in) over 5 days. For more detailed information, check out Cape Town weather in February.

December and March in Cape Town showcase remarkably similar temperature profiles, with both months experiencing average highs of 28°C (82°F) and lows around 14-13°C (58-56°F). However, December tends to be slightly drier, with 26 mm (1.0 in) of precipitation over five days compared to March's 24 mm (1.0 in) of rain across four days. Notably, March also sees a slightly higher humidity level at 81%, compared to December's 77%. For more detailed information on March weather patterns in Cape Town, you can visit Cape Town weather in March.

December weather in Cape Town is characterized by warmer temperatures, with a minimum of 14°C (58°F) and averages reaching up to 19°C (66°F). This month typically enjoys sunny days with a maximum temperature peaking at 28°C (82°F), alongside relatively low precipitation of 26 mm (1.0 in) over about 5 days. The humidity is moderately high at 77%.

In contrast, April sees a slight dip in minimum temperatures, dropping to 11°C (53°F), while the average sits at 17°C (63°F). However, maximum temperatures can rise quite high, reaching up to 31°C (88°F). Precipitation increases slightly in April, totaling 30 mm (1.2 in) over the same 5 days, with humidity maintaining a comparable level at 80%. For a detailed look at what to expect during this month, visit Cape Town weather in April.

When comparing the weather in December to that in May, we see distinct differences in temperature and precipitation. December offers warmer temperatures, with averages ranging from a mild 19°C (66°F) to a high of 28°C (82°F), while May is cooler, with an average temperature of 16°C (60°F) and a maximum of 25°C (78°F). Additionally, December experiences less precipitation, with only 26 mm (1.0 in) over approximately 5 days, whereas May tends to be wetter, receiving 63 mm (2.5 in) across 7 days. Interestingly, humidity levels are relatively similar, with December at 77% and May slightly higher at 78%. For more details, you can check out Cape Town weather in May.

December and June present contrasting weather patterns in terms of temperature and precipitation. In December, temperatures comfortably range from a minimum of 14°C (58°F) to a maximum of 28°C (82°F), with an average of 19°C (66°F). The month experiences relatively low precipitation at 26 mm (1.0 in) over just 5 days, coupled with a humidity level of 77%. In contrast, June features cooler temperatures, with a minimum of 9°C (48°F) and a maximum of 23°C (74°F), resulting in an average temperature of 14°C (58°F). This month sees significantly higher precipitation of 103 mm (4.1 in) over 11 days, increasing the humidity to 79%. For more details, you can explore Cape Town weather in June.

When comparing the weather in December and July, December offers a much warmer climate with temperatures ranging from a minimum of 14°C (58°F) to a maximum of 28°C (82°F), whereas July is significantly cooler, with temperatures ranging from 7°C (45°F) to a maximum of 24°C (75°F). Additionally, December experiences relatively low precipitation levels of 26 mm (1.0 in) over 5 days, while July sees a much wetter month with 95 mm (3.7 in) of rain distributed over 10 days. Despite the slight difference in humidity levels, with December at 77% and July at 80%, the overall feel is distinctly different, making December the more pleasant of the two months. For more insights on July weather specifically, you can check Cape Town weather in July.

When comparing the weather in December and August, it's clear that December is significantly warmer. In December, temperatures range from a minimum of 14°C (58°F) to a maximum of 28°C (82°F), with an average temperature of 19°C (66°F). In contrast, August sees cooler conditions, with temperatures ranging from a low of 8°C (46°F) to a high of 24°C (76°F), and an average of just 13°C (56°F).

Additionally, December experiences lower precipitation levels, with 26 mm (1.0 in) over roughly 5 days, while August is much wetter, receiving 75 mm (3.0 in) of rainfall across 11 days. Despite the differences in temperatures and precipitation, both months maintain a consistent humidity level of 77%. For more details on conditions specific to August, you can check Cape Town weather in August.

In comparing the weather patterns of December and September, December tends to be warmer with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 28°C (82°F). In contrast, September's temperatures are generally cooler, with averages ranging from a minimum of 9°C (48°F) to the same maximum of 28°C (82°F). Additionally, December experiences less rainfall, with only 26 mm (1.0 in) over 5 days compared to September's 45 mm (1.8 in) spread over 8 days. Humidity levels remain quite similar in both months, at 77% in December and 76% in September. For more detailed insights, you can explore Cape Town weather in September.

In comparing the weather of December and October, December tends to be slightly warmer, with average temperatures ranging from a minimum of 14°C (58°F) to a maximum of 28°C (82°F), while October sees a cooler average of 16°C (61°F) and a minimum of 11°C (51°F). Additionally, December experiences less precipitation, with only 26 mm (1.0 in) over five days, compared to October’s 41 mm (1.6 in) over the same number of days. However, both months share a consistent humidity level of 77%, making for a humid climate during this period. For more detailed information, you can visit Cape Town weather in October.

December generally offers slightly warmer temperatures compared to November, with average highs reaching up to 28°C (82°F) versus November's 25°C (77°F). The minimum temperatures also reflect this trend, with December starting at 14°C (58°F) compared to November's 12°C (53°F). However, December experiences less precipitation, totaling 26 mm (1.0 in) over five days, which is a decrease from November's 33 mm (1.3 in) during the same number of days. Humidity remains quite similar, at 77% in December compared to 75% in November. For a closer look at November's weather in Cape Town, check out this link: Cape Town weather in November.

Compare Cape Town's Climate with Cities Worldwide

Conclusion: What to Expect From December Weather in Cape Town

As December rolls in, Cape Town transforms into a vibrant summer haven, marked by warm temperatures that truly set it apart from the cooler months. With an average high of 28°C, this month boasts sunny days that invite locals and tourists alike to revel in the outdoors. Though occasional rain is expected, with an average of five precipitation days and totaling 26 mm, it rarely dampens the festive spirit. Humidity hovers around 77%, giving the air a pleasant warmth that enhances the holiday atmosphere. For anyone looking to explore the best of what Cape Town has to offer, December's balmy weather is simply unbeatable. Dive deeper into the seasonal variations by visiting Cape Town Climate.