Johannesburg Weather Year-Round — Best Time to Visit
Johannesburg, South Africa has mild weather year-round. The best time to visit is September (score: 89/100). Annual average high: 21.8°C, total rainfall: 699mm.
When is the best time to visit Johannesburg?
89
September is the best month to visit Johannesburg with a travel score of 89/100 (Excellent).
Expect highs of 23.6°C, 3 rain days, and 11.2 hours of daily sunshine.
View September weather details →Travel Score by Month
77
Jan
79
Feb
80
Mar
83
Apr
85
May
83
Jun
84
Jul
86
Aug
89
Sep
84
Oct
81
Nov
75
Dec
Excellent (80+)
Good (60-79)
Mixed (40-59)
Poor (<40)
What are the average temperatures in Johannesburg each month?
21.8°C
Avg High
9.6°C
Avg Low
699mm
Annual Rain
How much rain does Johannesburg get?
Johannesburg receives 699mm of rain annually. The wettest month is typically December with 128mm, while July is the driest.
What is the weather like each month in Johannesburg?
January
77
24°C
Low: 14°C
15 rain days
Good
February
79
24°C
Low: 14°C
13 rain days
Good
March
80
23°C
Low: 13°C
11 rain days
Good
April
83
21°C
Low: 10°C
7 rain days
Excellent
May
85
19°C
Low: 6°C
3 rain days
Excellent
June
83
16°C
Low: 3°C
1 rain days
Excellent
July
84
16°C
Low: 3°C
1 rain days
Excellent
August
86
20°C
Low: 5°C
2 rain days
Excellent
September
Best time to visit89
24°C
Low: 9°C
3 rain days
Excellent
October
84
25°C
Low: 11°C
9 rain days
Excellent
November
81
25°C
Low: 13°C
13 rain days
Excellent
December
75
25°C
Low: 14°C
17 rain days
Good
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Data based on 1994–2024 averages · Last updated: 2024-12-31