Weather in Johannesburg in December
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Compare car hire prices → Affiliate link — we earn a commission at no extra cost to youDecember in Johannesburg is warm, with average highs of 24.6°C and lows of 14.1°C. It is fairly wet (19 rainy days on average), with roughly 11.0 hours of sunshine a day. This is peak season for good reason — conditions are close to ideal. For the complete picture, see the best time to visit Johannesburg — every month compared. Once you know when to go, find your Johannesburg packing list at 247PackingList.
Get ready for Johannesburg in December
Search flights to Johannesburg
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Search Flights →Travel clothing layers
Pack layers — temperatures can vary significantly between day and night.
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- Light layers
- Sunscreen
- T-shirts and light trousers or shorts
- Compact travel umbrella
- Waterproof jacket
- Quick-dry clothing
Compare all months in Johannesburg
| Month | High | Rain | Rating |
|---|---|---|---|
| January | 25.1°C | 123.3mm | 9/10 |
| February | 24.3°C | 129.4mm | 9/10 |
| March | 23.4°C | 48.0mm | 10/10 |
| April | 21.4°C | 78.5mm | 10/10 |
| May | 19.0°C | 21.2mm | 10/10 |
| June | 16.6°C | 12.4mm | 10/10 |
| July | 16.8°C | 1.0mm | 10/10 |
| August | 20.0°C | 3.8mm | 10/10 |
| September | 24.8°C | 9.1mm | 10/10 |
| October | 25.7°C | 50.8mm | 10/10 |
| November | 25.0°C | 99.5mm | 10/10 |
| December | 24.6°C | 146.0mm | 9/10 |
Full month-by-month guide: best time to visit Johannesburg →
For facts about South Africa — currency, language and dialling code — see our South Africa country guide at 247CountryInfo. Travellers also find it useful to keep a Johannesburg travel guide to hand. Check clothing sizes in South Africa before you shop.
Frequently Asked Questions
Is December a good time to visit Johannesburg?
December rates 9/10 for visiting Johannesburg — excellent time to visit. Expect average highs of 24.6°C, 146.0mm of rain across the month and about 11.0 hours of daily sunshine.
What is the temperature in Johannesburg in December?
In December, Johannesburg has average highs of 24.6°C (76.3°F) and average lows of 14.1°C (57.4°F).
Does it rain in Johannesburg in December?
Some rain is likely. Johannesburg averages 146.0mm across about 19 rainy days in December, so a light waterproof layer is worth packing.
What should I wear in Johannesburg in December?
For Johannesburg in December (24.6°C highs / 14.1°C lows), pack light layers plus sunscreen, t-shirts and light trousers or shorts, compact travel umbrella.
More essentials for Johannesburg in December
Packing cubes
Keep the bag organised whatever the weather — compression cubes for every size.
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Compact TSA-friendly kit for peace of mind wherever you travel.
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Climate data sourced from Open-Meteo (open source, open data licence). Monthly averages calculated from 2020–2023 historical data. Weather can be unpredictable — always check a live forecast before travelling.