Johannesburg weather by month & the best time to visit
South Africa · major city break · oceanic / maritime climate
The best time to visit Johannesburg is August — its sunniest month (Sunshine Score 97/100), with May and September close behind. Johannesburg averages about 3,287 hours of sunshine a year. Daytime highs around 21°C / 70°F and roughly 7 mm of rain in August.
When is the best time to visit Johannesburg?
For sunshine, the best time to visit Johannesburg is August, then May and September. The dullest month is June (73/100, 7 mm of rain). The full month-by-month picture is in the table below.
How sunny is Johannesburg?
Johannesburg is one of the sunniest places on Earth: about 3,287 hours of sunshine a year. August (97/100) is noticeably better than June (73). It ranks #7 of 21 destinations in South Africa for annual sunshine, above the national median of 2,871 hours. Rain has a clear season: the wettest stretch, around December, carries about 53% of the annual 642 mm.
Sunshine Score by month
| Month | Score | Day high | Night low | Rain | UV |
|---|---|---|---|---|---|
| January | 76 | 27° / 81°F | 14° / 57°F | 122 mm | 12 |
| February | 84 | 27° / 81°F | 14° / 57°F | 82 mm | 12 |
| March | 85 | 26° / 79°F | 12° / 54°F | 73 mm | 10 |
| April | 91 | 23° / 73°F | 9° / 48°F | 43 mm | 8 |
| May | 96 | 20° / 68°F | 5° / 41°F | 16 mm | 6 |
| June | 73 | 17° / 63°F | 1° / 34°F | 7 mm | 5 |
| July | 74 | 17° / 63°F | 1° / 34°F | 3 mm | 5 |
| August | 97 | 21° / 70°F | 4° / 39°F | 7 mm | 6 |
| September | 96 | 25° / 77°F | 8° / 46°F | 16 mm | 8 |
| October | 88 | 27° / 81°F | 11° / 52°F | 57 mm | 10 |
| November | 82 | 27° / 81°F | 12° / 54°F | 89 mm | 11 |
| December | 75 | 27° / 81°F | 14° / 57°F | 127 mm | 12 |
Nearest destinations
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Head-to-head
How Johannesburg compares month by month: Johannesburg vs Cape Town · Johannesburg vs Durban · Johannesburg vs Maputo · Johannesburg vs Gqeberha (Port Elizabeth) · all comparisons
Johannesburg: questions and answers
What kind of destination is Johannesburg?
Johannesburg is a major city break in South Africa at 1,677 m elevation with a oceanic / maritime climate.
How many hours of sunshine does Johannesburg get a year?
Johannesburg gets about 3,287 hours of sunshine a year, at its best around August.
When is the best time to visit Johannesburg?
The sunniest time to visit Johannesburg is August, when the Sunshine Score peaks at 97/100 (with May and September close behind). Expect daytime highs around 21°C / 70°F.
What is the least sunny month in Johannesburg?
June is the least sunny month in Johannesburg, scoring 73/100 with about 7 mm of rain.
How strong is the sun in Johannesburg?
The typical midday UV index in Johannesburg peaks around 12 (extreme) in January, easing to about 5 (moderate) in June. Month-by-month midday UV values are in the UV column of the table on this page.
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