Randburg, Gauteng Weather by Month and Climate Averages

How much rain does Randburg get?

Randburg gets 648 mm of precipitation in an average year, spread over about 94 days with measurable rain. That is more rainy days than 78% of South Africa.

December is the wettest month, with 118 mm. July is the driest, with 3 mm. December has the most rainy days, about 15.

Randburg weather by month

Randburg weather in January

In January, Randburg averages a high of 28°C and a low of 16°C. It gets 113 mm of precipitation over about 15 rainy days. The sun is out about 45% of daylight hours. The January record high is 39°C (2016) and the record low is 8°C (2001).

Randburg weather in February

In February, Randburg averages a high of 28°C and a low of 16°C. It gets 91 mm of precipitation over about 11 rainy days. The sun is out about 48% of daylight hours. The February record high is 35°C (2016) and the record low is 11°C (2002).

Randburg weather in March

In March, Randburg averages a high of 27°C and a low of 14°C. It gets 85 mm of precipitation over about 11 rainy days. The sun is out about 60% of daylight hours. The March record high is 35°C (2024) and the record low is 6°C (2025).

Randburg weather in April

In April, Randburg averages a high of 25°C and a low of 12°C. It gets 35 mm of precipitation over about 7 rainy days. The sun is out about 68% of daylight hours. The April record high is 34°C (1995) and the record low is 0°C (2001). April is one of the most comfortable months to visit.

Randburg weather in May

In May, Randburg averages a high of 23°C and a low of 8°C. It gets 19 mm of precipitation over about 4 rainy days. The sun is out about 83% of daylight hours. The May record high is 30°C (2024) and the record low is -1°C (2007). May is one of the most comfortable months to visit.

Randburg weather in June

In June, Randburg averages a high of 21°C and a low of 6°C. It gets 9 mm of precipitation over about 2 rainy days. The sun is out about 90% of daylight hours. The June record high is 27°C (1998) and the record low is -2°C (2020). June is one of the most comfortable months to visit.

Randburg weather in July

In July, Randburg averages a high of 20°C and a low of 5°C. It gets 3 mm of precipitation over about 1 rainy days. The sun is out about 91% of daylight hours. The July record high is 27°C (2002) and the record low is -4°C (2000). July is one of the most comfortable months to visit.

Randburg weather in August

In August, Randburg averages a high of 23°C and a low of 7°C. It gets 8 mm of precipitation over about 2 rainy days. The sun is out about 86% of daylight hours. The August record high is 32°C (2020) and the record low is -5°C (2003). August is one of the most comfortable months to visit.

Randburg weather in September

In September, Randburg averages a high of 27°C and a low of 11°C. It gets 16 mm of precipitation over about 4 rainy days. The sun is out about 80% of daylight hours. The September record high is 34°C (2018) and the record low is 0°C (2015).

Randburg weather in October

In October, Randburg averages a high of 28°C and a low of 13°C. It gets 50 mm of precipitation over about 8 rainy days. The sun is out about 65% of daylight hours. The October record high is 36°C (2024) and the record low is 0°C (1994).

Randburg weather in November

In November, Randburg averages a high of 28°C and a low of 14°C. It gets 103 mm of precipitation over about 13 rainy days. The sun is out about 52% of daylight hours. The November record high is 37°C (2015) and the record low is 4°C (2002).

Randburg weather in December

In December, Randburg averages a high of 28°C and a low of 16°C. It gets 118 mm of precipitation over about 15 rainy days. The sun is out about 44% of daylight hours. The December record high is 37°C (2015) and the record low is 6°C (1994).

Sunshine, humidity and wind in Randburg

July is the sunniest month in Randburg, with sunshine about 91% of daylight hours. December is the cloudiest, at 44%. Over the year the sun shines about 68% of daylight hours. Randburg is sunnier than 55% of South Africa.

Humidity peaks in February at 67% and is lowest in August at 36%.

Randburg has about 16 days a year above 32°C. Randburg is cooler than 60% of South Africa.

First and last freeze in Randburg

The first fall freeze in Randburg typically comes around July 7, and the last spring freeze around July 25. That leaves a frost-free growing season of about 347 days.

Randburg weather records

The hottest temperature on record at the Randburg station is 39°C, on January 7, 2016. The coldest is -5°C, on August 21, 2003.

The wettest day on record brought 181 mm of rain, on September 6, 2021.

34 all-time records have been set at the station since 1991.

The best time to visit Randburg

The most comfortable time to visit is typically April to August, when daytime highs sit near 22°C.

Winter (June–August) is warm, with average highs around 21°C and lows near 6°C.

Spring (September–November) is warm, with average highs around 28°C and lows near 13°C.

Summer (December–February) is hot, with average highs around 28°C and lows near 16°C.

Autumn (March–May) is warm, with average highs around 25°C and lows near 11°C.

Randburg climate questions

How much rain does Randburg get?

Randburg gets 648 mm of precipitation in an average year, over about 94 rainy days.

What is the wettest month in Randburg?

December is the wettest month in Randburg, with 118 mm. July is the driest, with 3 mm.

How many rainy days does Randburg have a year?

Randburg has about 94 days with measurable rain in an average year. December has the most, about 15.

What is the hottest month in Randburg?

January is the warmest month in Randburg, with an average high of 28°C.

What is the coldest month in Randburg?

July is the coldest month in Randburg, with an average low of 5°C.

What is the record high temperature in Randburg?

The record high at the Randburg station is 39°C, set on January 7, 2016. The record low is -5°C, on August 21, 2003.

What is the sunniest month in Randburg?

July is the sunniest month in Randburg, with sunshine about 91% of daylight hours. December is the cloudiest.

When is the first frost in Randburg?

The first fall freeze in Randburg typically comes around July 7. The last spring freeze is around July 25.

What is the best time to visit Randburg?

The most comfortable time to visit is typically April to August, when daytime highs sit near 22°C.