July weather forecast
Johannesburg, South Africa

July continues the winter spell in Johannesburg, with temperatures reflecting the chill of the season. Rainfall touches the yearly low, measuring an insignificant 4mm (0.16"), indicating virtually arid conditions throughout. Due to the decreased humidity and rainfall, the city enjoys bright, clear skies and plentiful sunshine. Despite the decreased daylight hours, the winter sun ensures enough light for daytime activities. The reduced UV index brings relief to the residents, enabling them to enjoy their time outside with minimum sun protection.

Temperature

The beginning of July in Johannesburg records an average high-temperature of a still refreshing 16.7°C (62.1°F), marking a negligible difference from June's 16°C (60.8°F). A considerable shift from the daytime highs is observed during July nights, with an average low of 4.1°C (39.4°F).

Humidity

In Johannesburg, South Africa, the average relative humidity in July is 49%.

Rainfall

The month with the least rainfall is July, when the rain falls for 1 days and typically collects 4mm (0.16") of precipitation.

Daylight

The average length of the day in July in Johannesburg, South Africa, is 10h and 41min.
On the first day of July, sunrise is at 06:55 and sunset at 17:27. On the last day of the month, sunrise is at 06:47 and sunset at 17:41 SAST.

Sunshine

The average sunshine in July in Johannesburg is 9.2h.

UV index

The months with the lowest UV index in Johannesburg, South Africa, are June and July, with an average maximum UV index of 5. A UV Index of 3 to 5 symbolizes a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: The UV index of 5 in July translates into these instructions:
Exercise prevention - Precautions against solar damage are endorsed. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.