Historical climate averages in Cape Town for December
South Africa · 2021–2025 · 155 daily observations
A month-level reference built from observed daily highs, lows, and precipitation values. Use it to see how December fits into Cape Town's annual pattern, then jump to nearby months below.
Average High
24.4°C
Average Low
16.2°C
Record High
32.0°C
Record Low
11.0°C
Average Daily Precipitation
0.9mm
Data Coverage
2021–2025 (155 obs)
December in context
December in Cape Town is the 4th warmest month by average daytime high. Average highs reach 24.4°C and average lows settle near 16.2°C.
the 5th wettest month by average daily precipitation. Average daily precipitation is 0.9mm, versus 4.6mm in June, the wettest month.
This snapshot is built from 155 daily observations collected between 2021 and 2025. Record highs and lows mark the single hottest and coldest daily readings in the archive for this month.
Relative to the full year
- Daytime highs: +1.7°C vs city-wide monthly average
- Nighttime lows: +2.4°C vs city-wide monthly average
- Daily precipitation: -0.7mm vs city-wide monthly average
Archive quality
- Coverage: 2021–2025 (155 obs)
- Temperature span: 21.0°C between record low and high
- Driest month benchmark: January at 0.4mm
How this summary is calculated
PastWeather groups all recorded days for December, then calculates the average daytime high, average nighttime low, and average daily precipitation value for that month. The cards above stay tied to observed data rather than travel copy or generic climate descriptions.
Average high / low
Mean daily maximum and minimum temperatures across every recorded December day in the archive.
Record extremes
The single hottest and coldest daily readings observed during this month, useful for understanding outlier risk.
Precipitation note
Precipitation is shown as an average daily value for this month, which helps compare wetter and drier parts of the year on the same basis.
Explore another month
Move month by month or jump straight to the warmest, coldest, or wettest part of the year for Cape Town.