The weather in April in Johannesburg

It's warm in April in Johannesburg with an average temperature of 26°C. Temperatures this month range from a low of 25°C to a high of 29°C. At night, you can expect temperatures between 7°C and 13°C.

Looking for great weather? April is a good time to be in Johannesburg. The temperatures are nice, and there’s little chance of rain this month.

Average temperatures and precipitation

This chart shows the average daily maximum and minimum temperatures (in degrees Celsius) and precipitation (in millimeters) in April for Johannesburg, California. A low precipitation value usually indicates little to no rainfall on that day in recent years, while a higher value suggests more frequent rainfall.

Temperature records

With 37°C in 2021, Johannesburg reached the highest temperature in April over the past 10 years. The lowest daytime temperature in this month was 8°C in 2020. The extreme nighttime temperatures ranged from a lowest recorded value of -1°C to a highest value of 20°C.

Rainfall amount

According to weather history, there is only 8 mm of precipitation in April. The wind speed is around 5 Bft, mostly coming from the Southwest.

Daily weather in April for Johannesburg

Click on any day in April 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.

April weather comparison

  Johannesburg New York
Average temperature 26°C 17°C
Max. temperature 29°C 22°C
Min. temperature 7°C -5°C
Total precipitation 8 mm 81 mm
Rainy days 2 days 11 days

Start of April

The month of April starts in Johannesburg with warm temps, averaging around 26°C during the day and nights around 9°C.

Mid April

By mid-April, daytime temps rise to around 27°C, with nights around 10°C. Not much precipitation expected during this period. It’s mostly dry and sunny.

End of April

By the end of April, the average daytime temperature in Johannesburg is around 28°C, while nighttime temps are about 12°C. No precipitation expected at the end of the month; it’ll be mostly sunny.

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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.

Check out the climate of Johannesburg for all months and discover the best travel time

Temperature charts

These charts show the average temperatures in April in Johannesburg, California. The temperatures are shown in degrees Celsius and are calculated based on data from the past 10 years.

Daily Temperature in April in Johannesburg

Temperature in April in Johannesburg over the years

Precipitation charts

These charts show the average amount of precipitation in April in Johannesburg, California. Precipitation is always measured as water, even when it falls as snow or hail The amount of precipitation is displayed in millimeters, while snowfall is shown in centimeters.

Daily Precipitation in April in Johannesburg

Total precipitation in April in Johannesburg over the years

Daily UV index in April in Johannesburg

This chart shows the average daily UV index in April 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.

Weather experiences in April 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.