South Africa · 30-year monthly climate averages
Based on 30 years of climate data, the most comfortable months to visit Johannesburg are August, September and October, when daytime temperatures are agreeable and rainfall is relatively low.
Johannesburg sees its warmest weather in January, when daytime highs average around 24°C, and its coolest in June (around 15°C).
Annual precipitation totals roughly 822mm — January is typically the wettest month (~146mm) and July the driest (~3mm).
A distinctly wetter period runs from November to February — worth planning around if you prefer dry days.
🟧 avg daytime high · 🟦 dashed: avg nighttime low · bars: monthly rainfall
Daily forecast highs vs the 30-year normal — last 60 days
Each bar is one day: orange above normal, blue below.
| Month | High / Low | Rainfall | Travel rating |
|---|---|---|---|
| January | 24° / 14°C | 146mm | 👍 Good |
| February | 24° / 13°C | 126mm | 🌟 Great |
| March | 22° / 12°C | 109mm | 🌟 Great |
| April | 20° / 9°C | 41mm | 🌟 Great |
| May | 18° / 5°C | 16mm | 🌟 Great |
| June | 15° / 2°C | 10mm | 👍 Good |
| July | 16° / 2°C | 3mm | 🌟 Great |
| August | 19° / 4°C | 8mm | 🌟 Great |
| September | 22° / 8°C | 24mm | 🌟 Great |
| October | 23° / 10°C | 85mm | 🌟 Great |
| November | 23° / 12°C | 110mm | 🌟 Great |
| December | 24° / 13°C | 144mm | 👍 Good |
January in Johannesburg is pleasantly warm, with average daytime highs around 24°C (75°F) and nighttime lows near 14°C (57°F). Expect roughly 146mm of precipitation, and this is one of the wetter months.
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket
February in Johannesburg is pleasantly warm, with average daytime highs around 24°C (75°F) and nighttime lows near 13°C (56°F). Expect roughly 126mm of precipitation, and this is one of the wetter months.
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket
March in Johannesburg is pleasantly warm, with average daytime highs around 22°C (72°F) and nighttime lows near 12°C (53°F). Expect roughly 109mm of precipitation, with a moderate amount of rain.
🎒 What to pack — light layers · comfortable walking shoes
April in Johannesburg is pleasantly warm, with average daytime highs around 20°C (68°F) and nighttime lows near 9°C (48°F). Expect roughly 41mm of precipitation, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
May in Johannesburg is mild, with average daytime highs around 18°C (64°F) and nighttime lows near 5°C (42°F). Expect roughly 16mm of precipitation, and rain is rare.
🎒 What to pack — light jacket · layers for cool evenings
June in Johannesburg is mild, with average daytime highs around 15°C (60°F) and nighttime lows near 2°C (36°F). Expect roughly 10mm of precipitation, and rain is rare.
🎒 What to pack — light jacket · layers for cool evenings
July in Johannesburg is mild, with average daytime highs around 16°C (60°F) and nighttime lows near 2°C (35°F). Expect roughly 3mm of precipitation, and rain is rare.
🎒 What to pack — light jacket · layers for cool evenings
August in Johannesburg is mild, with average daytime highs around 19°C (66°F) and nighttime lows near 4°C (40°F). Expect roughly 8mm of precipitation, and rain is rare.
🎒 What to pack — light jacket · layers for cool evenings
September in Johannesburg is pleasantly warm, with average daytime highs around 22°C (72°F) and nighttime lows near 8°C (46°F). Expect roughly 24mm of precipitation, with little rainfall.
🎒 What to pack — light layers · comfortable walking shoes
October in Johannesburg is pleasantly warm, with average daytime highs around 23°C (74°F) and nighttime lows near 10°C (50°F). Expect roughly 85mm of precipitation, with a moderate amount of rain.
🎒 What to pack — light layers · comfortable walking shoes
November in Johannesburg is pleasantly warm, with average daytime highs around 23°C (74°F) and nighttime lows near 12°C (53°F). Expect roughly 110mm of precipitation, and this is one of the wetter months.
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket
December in Johannesburg is pleasantly warm, with average daytime highs around 24°C (75°F) and nighttime lows near 13°C (56°F). Expect roughly 144mm of precipitation, and this is one of the wetter months.
🎒 What to pack — light layers · comfortable walking shoes · compact umbrella or rain jacket