Normal weather for Johannesburg in January
It's warm in January in Johannesburg with an average temperature of 28°C. Temperatures this month range from a low of 26°C to a high of 29°C. At night, you can expect temperatures between 16°C and 17°C.
In January, there is an average of 120 mm of precipitation, spread over 16 days. The wind speed is around 3 Bft, mostly coming from the South.
Johannesburg in January |
New York | ||
|---|---|---|---|
 Average Temperature |
28°C | 5°C | |
 High Temp |
29°C | 11°C | |
| Low Temp |
26°C | 1°C | |
 Total Precipitation |
120 mm | 97 mm | |
| Rainy Days |
16 days | 12 days | |
Start of January
The month of January starts in Johannesburg with hot temps, averaging around 28°C during the day and nights around 17°C. You can expect regular precipitation, but there will also be some sunny days in the early part of the month.
With the temperature difference between day and night, it’s smart to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.
Mid January
By mid-January, daytime temps rise to around 29°C, with nights around 17°C. There’s a chance of some showers during this time, but plenty of dry and sunny days too.
Since it cools down at night, it’s a good idea to wear layers. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.
End of January
By the end of January, the average daytime temperature in Johannesburg is around 28°C, while nighttime temps are about 17°C. Expect regular precipitation, but if you’re lucky, you’ll also get some dry and sunny days.
Because temperatures drop in the evening, wearing layers is recommended. For the daytime, light clothing like shorts or a dress, and a hat and sunglasses are perfect. For the evening and morning, a shirt, maybe a light sweater, and thin pants are recommended.
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UV index
The UV index is a maximum of 10 this month. That's a very high value on the intensity scale of 1 to 11. Unprotected skin can burn within 10-15 minutes.
Is January a good time to visit Johannesburg?
Looking for sun? January isn’t a good month to be in Johannesburg. The temperature is nice, but there’s too much chance of rain.
Temperature records for Johannesburg in January
Check out the climate of Johannesburg for all months and discover the best travel time
Curious about the weather in other parts of South Africa? Check out the climate and weather for spots like Cape Town, Krugerpark, Stellenbosch, or explore other destinations in South Africa.
December
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Daily Temperature in January in Johannesburg
This chart shows the average daily high and low temperatures in January for Johannesburg, in degrees Celsius. The red line represents the highs, and the blue line shows the lows. The days of the month are displayed at the bottom of the chart. The data, based on historical observations, provide the average temperatures for this month.
Daily Precipitation in January in Johannesburg
The chart below shows the average daily precipitation in January for Johannesburg, measured in millimeters over the past few years. Precipitation is always measured as water, even if it’s snow or hail. The days of the month are listed at the bottom of the chart.
A low average precipitation means that the chance of rain on that day is usually small, while a higher average suggests that it rained more often. But remember, it’s just an average, and every day can be different. Based on historical weather data for January, you can expect about 16 days of precipitation in Johannesburg.
Daily UV Index in January in Johannesburg
This chart shows the average daily UV index in January in Johannesburg, with the UV index ranging from 0 to a maximum of 11. The bottom of the chart shows the days of the month. Based on historical data, this chart provides an idea of the daily UV radiation levels you can expect.
Temperature in January in Johannesburg Over the Years
This chart shows the average temperature in January in Johannesburg, measured in degrees Celsius, over the past few years.
Total Precipitation in January in Johannesburg Over the Years
This chart shows the average precipitation in January in Johannesburg, measured in millimeters over the past years. Precipitation is always measured as water, whether it’s snow or hail.
Daily Climate in January for Johannesburg
Click on any day in January to get detailed info about the usual weather on that day in Johannesburg. Check out the historical temperatures and precipitation over the past 10 years on this day.
Weather experiences in January in Johannesburg
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Average Weather in Johannesburg by Month
Click on a month below to see detailed weather info for Johannesburg. Based on historical weather data, you can see the average temperature, precipitation, wind, and UV index for each day of the month.
Or check out the climate of Johannesburg for all months at once
