Vanderbijlpark is located on the South African highveld, at 1,500 meters above sea level, on the banks of the Vaal River.
Summers in the city are moderate to hot, with typical highs of 31 to 35 degrees Celsius and lows of 15 to 22 degrees Celsius.
The city’s winters are mild to hot, with typical highs of 18 to 23 degrees Celsius and lows of 1 to 5 degrees Celsius.
| Climate data for Vanderbijlpark | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Record high °C (°F) | 43 (109) |
36 (97) |
35 (95) |
33 (91) |
28 (82) |
25 (77) |
25 (77) |
28 (82) |
32 (90) |
35 (95) |
38 (100) |
38 (100) |
43 (109) |
| Average high °C (°F) | 29 (84) |
28 (82) |
27 (81) |
24 (75) |
22 (72) |
19 (66) |
20 (68) |
22 (72) |
26 (79) |
27 (81) |
27 (81) |
28 (82) |
25 (77) |
| Daily mean °C (°F) | 22 (72) |
21 (70) |
20 (68) |
17 (63) |
14 (57) |
10 (50) |
11 (52) |
14 (57) |
18 (64) |
19 (66) |
20 (68) |
21 (70) |
17 (63) |
| Average low °C (°F) | 17 (63) |
16 (61) |
15 (59) |
5 (41) |
−1 (30) |
−2 (28) |
1 (34) |
7 (45) |
12 (54) |
14 (57) |
16 (61) |
17 (63) |
12 (54) |
| Record low °C (°F) | 8 (46) |
11 (52) |
6 (43) |
2 (36) |
−3 (27) |
−7 (19) |
−4 (25) |
−1 (30) |
2 (36) |
4 (39) |
7 (45) |
7 (45) |
−6 (21) |
| Average precipitation mm (inches) | 154 (6.1) |
75 (3.0) |
82 (3.2) |
51 (2.0) |
13 (0.5) |
7 (0.3) |
3 (0.1) |
6 (0.2) |
22 (0.9) |
71 (2.8) |
98 (3.9) |
120 (4.7) |
703 (27.7) |
| Average precipitation days | 14 | 11 | 10 | 7 | 3 | 1 | 1 | 2 | 3 | 9 | 12 | 15 | 87 |
| Mean monthly sunshine hours | 261 | 235 | 254 | 246 | 283 | 271 | 289 | 296 | 284 | 275 | 254 | 272 | 3,220 |
