Johannesburg Weather in April
South Africa · Subtropical Highlands climate · Data averaged from 2020-01-01 to 2024-12-31 (5 years)
April in Johannesburg sees average temperatures ranging from a low of 10.1°C (50.2°F) to a high of 21.4°C (70.5°F), with a mean of 15.3°C (59.5°F). Compared to the annual average of 16.0°C (60.8°F), this month is 0.7°C cooler than the yearly norm. Precipitation averages 72.7mm, making it approximately 19.0mm wetter than the monthly average of 54.0mm. The city receives an average of 10.1 hours of sunshine per day during April, with relative humidity averaging 63.7%. Wind speeds reach an average maximum of 16.7 km/h. For travelers, this month offers a temperature experience in Johannesburg, with wetter-than-average conditions compared to the rest of the year.
Johannesburg's altitude of 1,753 meters creates a subtropical highland climate with comfortable temperatures and summer rainfall. I've studied the data and found that the city experiences mild, dry winters and warm, wet summers. The best time for visiting is May to September, when the weather is dry and the city's outdoor attractions are most accessible.
April vs Adjacent Months
| Metric | March | April | May |
|---|---|---|---|
| Mean Temp | 18.2°C (64.8°F) | 15.3°C (59.5°F) | 13.0°C (55.4°F) |
| Rainfall | 41.9mm | 72.7mm | 17.1mm |
| Sunshine | 10.6 hrs | 10.1 hrs | 10.0 hrs |
| Humidity | 66.1% | 63.7% | 55.4% |
| Wind | 16.1 km/h | 16.7 km/h | 15.5 km/h |
| Rainy Days | 17.0 | 11.0 | 5.0 |
Seasonal Context
April falls in Spring in the Northern Hemisphere. Spring is a transitional season with temperatures rising from winter lows. For travelers visiting Johannesburg in April, the data indicates favorable conditions based on the combination of temperature, precipitation, and daylight hours.
Frequently Asked Questions
What is the average temperature in Johannesburg in April?
The average temperature in Johannesburg during April ranges from 10.1°C (50.2°F) to 21.4°C (70.5°F), with a mean of 15.3°C (59.5°F).
How much does it rain in Johannesburg in April?
Johannesburg receives an average of 72.7mm of precipitation in April, spread across approximately 11.0 rainy days.
What should I pack for Johannesburg in April?
Based on April weather data, pack layers including light jackets and t-shirts, plus an umbrella.
Is April a good time to visit Johannesburg?
April is a good time to visit Johannesburg, with comfortable temperatures and manageable rainfall.
Other Months for Johannesburg
Cities with Similar April Climate (Subtropical Highlands)
Data Source: Open-Meteo historical archive (2020-01-01 to 2024-12-31). Daily measurements aggregated into monthly climate normals. Coordinates: -26.2°, 28.05°. Timezone: Africa/Johannesburg. Last updated: 2026-07-30.