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Weather Comparison

Cape Town vs Buenos Aires

Side-by-side weather comparison for December

Cape Town: 24°CBuenos Aires: 25°C6,870 km apart

December Weather: Cape Town vs Buenos Aires

MetricCape TownBuenos AiresBetter
Average HighHigher is warmer24°C (75°F)25°C (77°F)Buenos Aires
Average LowHigher is milder16°C (61°F)17°C (63°F)Buenos Aires
Rain DaysFewer is drier3 days6 daysCape Town
PrecipitationLess is drier15 mm70 mmCape Town
Sunshine HoursMore is sunnier13h/day7h/dayCape Town
HumidityLower is more comfortable70%65%Buenos Aires
UV IndexLower is safer99Tie
Wind SpeedCalmer is better25 km/h15 km/hBuenos Aires

Which City is Better in December?

Based on sunshine hours, rain days, comfortable temperatures, and humidity levels, Cape Town edges ahead as the better destination in December. Cape Town offers 13 hours of daily sunshine with only 3 rain days, while Buenos Aires sees 7 sunshine hours and 6 rain days.

Cape Town sits in the comfortable travel range at 24°C. Buenos Aires is also comfortable at 25°C.

For travelers who prioritize dry weather, Cape Town is the stronger choice in December. Cape Town receives 6 more hours of sunshine per day, which matters for sightseeing and outdoor activities.

Temperature Comparison in December

Cape Town reaches an average high of 24°C (75°F) and drops to 16°C (61°F) at night during December. The daily temperature range is 8°C, meaning moderate variation throughout the day.

Buenos Aires averages 25°C (77°F) for the high and 17°C (63°F) for the low, with a daily range of 8°C. The two cities feel quite similar in terms of temperature.

Both cities are in the Southern Hemisphere, so they share the same seasonal pattern in December.

Rainfall Comparison in December

Cape Town receives approximately 15 mm of rainfall across 3 rain days during December. Rain is occasional, so a light rain jacket should suffice.

Buenos Aires sees 70 mm over 6 rain days. That makes Cape Town the drier option by 3 rain days and 55 mm of total precipitation.

Humidity also differs: Cape Town averages 70% while Buenos Aires sits at 65%. Cape Town will feel muggier, especially at higher temperatures.

What to Pack: Cape Town vs Buenos Aires

Packing for Cape Town in December

Highs of 24°C, lows of 16°C, 3 rain days

  • light layers
  • a light jacket for evenings
  • sunscreen

Packing for Buenos Aires in December

Highs of 25°C, lows of 17°C, 6 rain days

  • light layers
  • a light jacket for evenings
  • sunscreen
  • a packable rain jacket
  • an umbrella

Pack for both: light layers, a light jacket for evenings, sunscreen. These items are useful in either destination during December.

Year-Round Comparison: Cape Town vs Buenos Aires

The table below shows average high temperatures and rain days for every month of the year, helping you find the best time to visit either city.December is highlighted for quick reference.

MonthCape TownBuenos Aires
HighRainHighRain
Jan26°C3d23°C6d
Feb26°C2d20°C5d
Mar25°C3d16°C4d
Apr22°C5d11°C3d
May19°C7d8°C3d
Jun17°C10d7°C3d
Jul17°C9d8°C3d
Aug17°C9d11°C3d
Sep18°C7d16°C4d
Oct20°C5d20°C5d
Nov22°C5d23°C6d
Dec24°C3d25°C6d
24°

Cape Town Weather in December

Full forecast, packing tips, and activities

25°

Buenos Aires Weather in December

Full forecast, packing tips, and activities

Frequently Asked Questions

Is Cape Town warmer than Buenos Aires in December?
No. In December, Buenos Aires is warmer with an average high of 25°C (77°F) compared to Cape Town at 24°C (75°F), a difference of 1°C.
Which city gets more rain in December, Cape Town or Buenos Aires?
Buenos Aires gets more rain in December with 6 rain days and 70 mm of precipitation. Cape Town is the drier option with 3 rain days.
Is it better to visit Cape Town or Buenos Aires in December?
It depends on your preferences. Cape Town averages 24°C and 13 hours of daily sunshine with 3 rain days. Buenos Aires averages 25°C with 7 sunshine hours and 6 rain days. If you prefer cooler conditions, choose Buenos Aires. For drier weather, Cape Town is the better pick.
How far apart are Cape Town and Buenos Aires?
Cape Town and Buenos Aires are approximately 6,870 km (4,266 miles) apart. Cape Town is located in South Africa (Africa) while Buenos Aires is in Argentina (South America).
What is the best month to visit Cape Town and Buenos Aires?
For Cape Town, February tends to be the best month with 13 hours of daily sunshine and a high of 26°C. For Buenos Aires, January is typically ideal with 7 sunshine hours and 23°C highs.

Compare Cape Town and Buenos Aires in Other Months

Climate data sourced from the Open-Meteo Historical Weather API, using ERA5 reanalysis data covering 30-year normals from 1991 to 2020. All temperatures shown in Celsius with Fahrenheit equivalents. Rain days count days with 1 mm or more of precipitation. Sunshine hours represent average daily values. This comparison is generated from long-term climate averages and individual trips may vary.

Cape Town coordinates: -33.92°N, 18.42°E | Buenos Aires coordinates: -34.60°N, -58.38°E