| Swartklip normally receives about 495mm of rain per year, with most rainfall occuring mainly during mid summer. The chart below (lower left) shows the average rainfall values for Swartklip per month. It receives the lowest rainfall (0mm) in June and the highest (98mm) in January. The monthly distribution of average daily maximum temperatures (centre chart below) shows that the average midday temperatures for Swartklip range from 21.3°C in June to 31.4°C in January. The region is the coldest during July when the mercury drops to 2.1°C on average during the night. Consult the chart below (lower right) for an indication of the monthly variation of average minimum daily temperatures. |
| Move mouse over chart bars for monthly values |
|
Average rainfall (mm)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
![]() |
|
|
|
|
J
|
|
F
|
|
M
|
|
A
|
|
M
|
|
J
|
|
J
|
|
A
|
|
S
|
|
O
|
|
N
|
|
D
|
|
|
|
|
|
|
Average midday temperature (°C)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
![]() |
|
|
|
|
J
|
|
F
|
|
M
|
|
A
|
|
M
|
|
J
|
|
J
|
|
A
|
|
S
|
|
O
|
|
N
|
|
D
|
|
|
|
|
|
|
Average night-time temperature (°C)
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
![]() |
|
|
|
|
J
|
|
F
|
|
M
|
|
A
|
|
M
|
|
J
|
|
J
|
|
A
|
|
S
|
|
O
|
|
N
|
|
D
|
|
|
|
|
|
|
