Annual mean 18°C · wettest around December · prevailing wind N
Warmest
25.5 °C
Coldest
16.3 °C
Wettest
71%
Windiest
3.7 m/s
Prevailing
N
2.9 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Randfontein over the whole year is 18°C. January is the hottest month, with highs of about 25°C; July is the coldest, with lows of about 5°C. The rainy (wet) season in Randfontein runs from September to May, peaking in December with a 57% chance of rain on a given day. The dry season is June to August; August is the driest month, at 24%. Winds in Randfontein are highest in October, averaging 2.7 m/s (10 km/h), and lightest in April, at 1.8 m/s (6 km/h). The prevailing wind is from the N. The clearest skies in Randfontein come in July, when the sky is typically 25% covered; February is the cloudiest month, at 58%.
Month by month Randfontein climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
25°C
17°C
25°C
52%
55%
2.4 m/s
74
51
32
February
25°C
17°C
25°C
53%
58%
2.1 m/s
72
52
30
March
24°C
16°C
24°C
49%
50%
2.0 m/s
79
42
41
April
22°C
13°C
20°C
51%
46%
1.8 m/s
82
15
66
May
20°C
9°C
17°C
47%
33%
1.8 m/s
71
1
82
June
17°C
6°C
13°C
36%
26%
1.9 m/s
42
0
83
July
17°C
5°C
13°C
35%
25%
1.9 m/s
39
0
82
August
20°C
8°C
16°C
24%
28%
2.3 m/s
61
1
82
September
24°C
12°C
20°C
43%
38%
2.5 m/s
78
16
65
October
25°C
14°C
22°C
51%
47%
2.7 m/s
73
30
51
November
25°C
16°C
23°C
53%
50%
2.7 m/s
73
37
45
December
25°C
18°C
24°C
57%
57%
2.6 m/s
70
46
35
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Randfontein weather by season
Year round, Randfontein has days of about 17°C at their warmest in July, its coolest month, and 25°C in January, its warmest; the coolest hours of the day run from 5°C to 18°C through the year, and the average temperature over the year is 18°C around the clock. Rain is most likely around December and least likely around August. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Randfontein weather in winterJune to August
High 18°CLow 6°CRain 31%
Winter in Randfontein has typical daily highs of about 18°C and lows of about 6°C, with a 31% chance of rain on a given day.
Randfontein weather in springSeptember to November
High 24°CLow 14°CRain 49%
Spring in Randfontein has typical daily highs of about 24°C and lows of about 14°C, with a 49% chance of rain on a given day.
Randfontein weather in summerDecember to February
High 25°CLow 17°CRain 54%
Summer in Randfontein has typical daily highs of about 25°C and lows of about 17°C, with a 54% chance of rain on a given day.
Randfontein weather in autumnMarch to May
High 22°CLow 12°CRain 49%
Autumn in Randfontein has typical daily highs of about 22°C and lows of about 12°C, with a 49% chance of rain on a given day.
When is the rainy season in Randfontein?
The rainy (wet) season in Randfontein runs from September to May, peaking in December with a 57% chance of rain on a given day. The dry season is June to August; August is the driest month, at 24%.
What time of year is Randfontein windiest?
Winds in Randfontein are highest in October, averaging 2.7 m/s (10 km/h), and lightest in April, at 1.8 m/s (6 km/h). The prevailing wind is from the N.
What is the average temperature in Randfontein year round?
The average temperature in Randfontein over the whole year is 18°C. January is the hottest month, with highs of about 25°C; July is the coldest, with lows of about 5°C.