nomadseason

Monthly climate in Randfontein, Gauteng, South Africa

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Randfontein features a subtropical climate (Cwb).Temperatures typically range between 10 °C (51 °F) and 21 °C (70 °F) through the year, but rarely can drop to -5 °C (24 °F) or can rise to as high as 34 °C (94 °F).The average annual precipitation amounts to about 745 mm (29.3 inches) and receives 93 rainy days on the 1 mm (0.04 inches) threshold annually.Randfontein enjoys an average of 4024 hours of sunshine throughout the year, and daylight varies from 10 hours 30 minutes to 13 hours 44 minutes per day.

Monthly average temperatures in Randfontein, Gauteng, South Africa §

The warmest months in Randfontein are January, November and December, with daily mean temperatures ranging from 20 to 21 °C (69 - 70 °F) throughout the day. The coldest temperatures usually occur in May, June and July, when daily mean temperatures range from 10 to 13 °C (51 - 56 °F) throughout the day. On average each year, Randfontein experiences 129 days above 25 °C (77.0 °F) and 4 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Randfontein, Gauteng, South Africa.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to June 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Maximum 34°C
(94°F)		 30°C
(87°F)		 30°C
(87°F)		 29°C
(85°F)		 26°C
(78°F)		 25°C
(77°F)		 25°C
(78°F)		 27°C
(80°F)		 32°C
(91°F)		 33°C
(92°F)		 34°C
(93°F)		 34°C
(93°F)
Mean maximum 30°C
(87°F)		 29°C
(85°F)		 28°C
(84°F)		 27°C
(82°F)		 24°C
(76°F)		 22°C
(73°F)		 24°C
(75°F)		 26°C
(79°F)		 31°C
(88°F)		 32°C
(89°F)		 32°C
(90°F)		 31°C
(89°F)
Average high 26°C
(79°F)		 25°C
(78°F)		 25°C
(77°F)		 22°C
(73°F)		 21°C
(70°F)		 19°C
(67°F)		 19°C
(66°F)		 22°C
(71°F)		 25°C
(78°F)		 26°C
(79°F)		 27°C
(80°F)		 26°C
(79°F)
Daily mean 21°C
(70°F)		 20°C
(68°F)		 19°C
(66°F)		 16°C
(62°F)		 13°C
(56°F)		 11°C
(52°F)		 10°C
(51°F)		 14°C
(57°F)		 18°C
(64°F)		 19°C
(66°F)		 20°C
(69°F)		 20°C
(69°F)
Average low 16°C
(61°F)		 15°C
(60°F)		 14°C
(57°F)		 11°C
(52°F)		 7°C
(45°F)		 4°C
(39°F)		 3°C
(38°F)		 7°C
(44°F)		 10°C
(50°F)		 12°C
(54°F)		 14°C
(57°F)		 15°C
(60°F)
Mean minimum 12°C
(54°F)		 12°C
(54°F)		 10°C
(50°F)		 6°C
(43°F)		 3°C
(37°F)		 -1°C
(30°F)		 -2°C
(28°F)		 0°C
(33°F)		 3°C
(37°F)		 7°C
(44°F)		 8°C
(47°F)		 11°C
(53°F)
Minimum 9°C
(49°F)		 10°C
(51°F)		 8°C
(46°F)		 3°C
(38°F)		 -1°C
(31°F)		 -5°C
(24°F)		 -4°C
(25°F)		 -1°C
(30°F)		 -1°C
(31°F)		 4°C
(40°F)		 4°C
(40°F)		 10°C
(51°F)

Compare climate in Randfontein with other places

Compare temperature, precipitation, sunshine, UV index in Randfontein, Gauteng, South Africa with other places around the world.

Monthly average precipitation in Randfontein, Gauteng, South Africa §

Randfontein usually has the most precipitation in January, February and December, with an average of 16 rainy days and 138 mm (5.5 inches) of precipitation per month.The driest months in Randfontein are June, July and August. On average, 4 mm (0.2 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Randfontein, Gauteng, South Africa.Generated using Copernicus Climate Change Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Average precipitation mm (inches) 129 (5.1) 141 (5.5) 75 (3.0) 61 (2.4) 12 (0.5) 8 (0.3) 3 (0.1) 2 (0.1) 8 (0.3) 59 (2.3) 100 (4.0) 145 (5.7)
Average precipitation days (≥ 1 mm) 14 16 10 9 1 1 1 0 2 7 13 19

Monthly sunshine hours in Randfontein, Gauteng, South Africa §

The sunniest months in Randfontein are October, November and December, when the sun shines an average of 12 hours 8 minutes a day.Least sunny months in Randfontein: January, June and July receive an average of 10 hours 2 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Randfontein, Gauteng, South Africa.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2017 to January 2022.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Mean monthly sunshine hours 310 322 355 317 319 299 313 329 338 365 372 378
Mean daily daylight hours 13h 33m 12h 57m 12h 12m 11h 26m 10h 48m 10h 30m 10h 39m 11h 12m 11h 56m 12h 42m 13h 23m 13h 44m

Solar UV radiation in Randfontein, Gauteng, South Africa §

Randfontein experiences the highest level of ultraviolet (UV) radiation in January, November and December, when the maximum UV index can reach values of 15 - 16, which corresponds to the Extreme category of sun exposure.May, June and July are in the High exposure category. In these months, the maximum values of the UV index do not exceed 7. For more detailed information, check out our hourly Randfontein UV Index data.

Average daily maximum UV levels by month for Randfontein, Gauteng, South Africa.Generated using Copernicus Atmosphere Monitoring Service information.Data for period from January 2022 to January 2023.
  Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
UV Index (month maximum) 16 15 13 11 7 6 6 8 11 13 15 16