Germiston, Gauteng Weather by Month and Climate Averages

How much rain does Germiston get?

Germiston 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.

Germiston weather by month

Germiston weather in January

In January, Germiston 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 44% of daylight hours. The January record high is 39°C (2016) and the record low is 8°C (2001).

Germiston weather in February

In February, Germiston 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 46% of daylight hours. The February record high is 35°C (2016) and the record low is 11°C (2002).

Germiston weather in March

In March, Germiston 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 58% of daylight hours. The March record high is 35°C (2024) and the record low is 6°C (2025).

Germiston weather in April

In April, Germiston 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.

Germiston weather in May

In May, Germiston 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 81% 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.

Germiston weather in June

In June, Germiston 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 89% 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.

Germiston weather in July

In July, Germiston 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.

Germiston weather in August

In August, Germiston 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 85% 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.

Germiston weather in September

In September, Germiston 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 79% of daylight hours. The September record high is 34°C (2018) and the record low is 0°C (2015).

Germiston weather in October

In October, Germiston 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 63% of daylight hours. The October record high is 36°C (2024) and the record low is 0°C (1994).

Germiston weather in November

In November, Germiston 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 50% of daylight hours. The November record high is 37°C (2015) and the record low is 4°C (2002).

Germiston weather in December

In December, Germiston 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 43% of daylight hours. The December record high is 37°C (2015) and the record low is 6°C (1994).

Sunshine, humidity and wind in Germiston

July is the sunniest month in Germiston, with sunshine about 91% of daylight hours. December is the cloudiest, at 43%. Over the year the sun shines about 66% of daylight hours. Germiston is sunnier than 51% of South Africa.

Humidity peaks in January at 69% and is lowest in September at 36%.

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

First and last freeze in Germiston

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

Germiston weather records

The hottest temperature on record at the Germiston 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 Germiston

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.

Germiston climate questions

How much rain does Germiston get?

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

What is the wettest month in Germiston?

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

How many rainy days does Germiston have a year?

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

What is the hottest month in Germiston?

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

What is the coldest month in Germiston?

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

What is the record high temperature in Germiston?

The record high at the Germiston 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 Germiston?

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

When is the first frost in Germiston?

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

What is the best time to visit Germiston?

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