April weather forecast and climate
Johannesburg, South Africa

The vast cityscape of Gauteng Province in Johannesburg, South Africa
The vast cityscape of Gauteng Province in Johannesburg, South Africa
April is pleasantly warm in Johannesburg with an average humidity of 65%. The lowest temperature recorded is 10°C (50°F), and the highest is 22°C (71.6°F) making it a lot cooler than it was in summer.
The sun in April shines for an average of nine hours, and this steadies on for the next few weeks. Rainfall drops further to fetch at 40.6mm (1.6") falling for approximately eight days only.
Tourists flock the city to partake in its beauty and warmth.

What is the temperature in April in Johannesburg?

The average high-temperature, in April, in Johannesburg, is 21.1°C (70°F), while the average low-temperature is 10.3°C (50.5°F).

How many days does it rain in April in Johannesburg?

In Johannesburg, in April, during 8.6 rainfall days, typically, 54mm (2.1") of precipitation is accumulated.
Average temperature in April - Johannesburg, South Africa
  • Average high temperature in April: 21.1°C

The warmest month (with the highest average high temperature) is January (25.6°C).
The month with the lowest average high temperature is June (16°C).

  • Average low temperature in April: 10.3°C

The month with the highest average low temperature is January (14.7°C).
Coldest months (with the lowest average low temperature) are June and July (4.1°C).

Average humidity in April - Johannesburg, South Africa
  • Average humidity in April: 65%

The month with the highest relative humidity is February (70%).
The month with the lowest relative humidity is August (46%).

Average rainfall in April - Johannesburg, South Africa
  • Average rainfall in April: 54mm

The wettest month (with the highest rainfall) is January (125mm).
The driest month (with the lowest rainfall) is July (4mm).

Average rainfall days in April - Johannesburg, South Africa
  • Average rainfall days in April: 8.6 days

The month with the highest number of rainy days is January (15.9 days).
The month with the lowest number of rainy days is July (1 days).

Average daylight in April / Average sunshine in April - Johannesburg, South Africa
  • Average daylight in April: 11.5h

The month with the longest days is December (Average daylight: 13.8h).
The month with shortest days is June (Average daylight: 10.5h).

  • Average sunshine in April: 7.9h

The month with most sunshine is September (Average sunshine: 9.4h).
The month with least sunshine is March (Average sunshine: 7.7h).

Average UV index in April - Johannesburg, South Africa
  • Average UV index in April: 9

Months with the highest UV index are January, February, March, November and December (UV index 12).
Months with the lowest UV index are June and July (UV index 5).

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