Germiston Weather & Climate: Best Time to Visit

The climate in Germiston experiences moderate temperature changes, with mild shifts between seasons. Typically, average maximum daytime temperatures range from a comfortable 27°C (81°F) in January to a pleasant 20°C (68°F) in the coolest month, July.

Nights vary from 16°C (61°F) in January to around 4°C (39°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Germiston receives mid-range precipitation levels, with 775 mm (31 in) annually. The climate in Germiston shows significant variation throughout the year. Expect high rainfall in December, the wettest month, with an average of 138 mm (5.4 in) of precipitation over 14 rainy days.

In contrast, the driest month July offers drier and sunnier days, with around 3.7 mm (0.1 in) of rainfall over a single rainy day. For more details, please visit our Germiston Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

Germiston offers a pleasant mix of sunny and slightly overcast days. The difference in sunshine hours between July (9.5 hours daily) and February (7.5 hours daily) provides a bit of variety for visitors and residents.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine

The relative humidity is moderate throughout the year in Germiston.

The city experiences its highest humidity in February, reaching 70%. In August, the humidity drops to its lowest level at 46%. What does this mean? Read our detailed page on humidity levels for further details.

Relative humidity over the year