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Monthly climate in Postmasburg, Northern Cape, South Africa

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Postmasburg features a cold semi-arid climate (BSk).Temperatures typically range between 11 °C (51 °F) and 25 °C (77 °F) through the year, but rarely can drop to -5 °C (23 °F) or can rise to as high as 38 °C (101 °F).The average annual precipitation amounts to about 352 mm (13.9 inches) and receives 51 rainy days on the 1 mm (0.04 inches) threshold annually.Postmasburg enjoys an average of 4139 hours of sunshine throughout the year, and daylight varies from 10 hours 21 minutes to 13 hours 53 minutes per day.

Monthly average temperatures in Postmasburg, Northern Cape, South Africa §

The warmest months in Postmasburg are January, February and December, with daily mean temperatures ranging from 24 to 25 °C (75 - 77 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 12 °C (51 - 54 °F) throughout the day. On average each year, Postmasburg experiences 208 days above 25 °C (77.0 °F) and 12 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Postmasburg, Northern Cape, 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 38°C
(101°F)		 36°C
(97°F)		 36°C
(97°F)		 34°C
(94°F)		 28°C
(83°F)		 26°C
(79°F)		 26°C
(79°F)		 29°C
(85°F)		 35°C
(95°F)		 37°C
(99°F)		 38°C
(100°F)		 38°C
(100°F)
Mean maximum 36°C
(97°F)		 35°C
(96°F)		 33°C
(92°F)		 31°C
(89°F)		 27°C
(81°F)		 24°C
(75°F)		 25°C
(77°F)		 28°C
(83°F)		 34°C
(93°F)		 35°C
(96°F)		 36°C
(97°F)		 36°C
(98°F)
Average high 32°C
(90°F)		 31°C
(87°F)		 30°C
(85°F)		 26°C
(79°F)		 23°C
(74°F)		 21°C
(69°F)		 20°C
(69°F)		 22°C
(71°F)		 27°C
(80°F)		 29°C
(84°F)		 31°C
(88°F)		 32°C
(89°F)
Daily mean 25°C
(77°F)		 24°C
(75°F)		 22°C
(72°F)		 18°C
(65°F)		 14°C
(58°F)		 11°C
(52°F)		 11°C
(51°F)		 12°C
(54°F)		 17°C
(64°F)		 20°C
(69°F)		 23°C
(73°F)		 24°C
(76°F)
Average low 18°C
(64°F)		 18°C
(64°F)		 15°C
(60°F)		 12°C
(53°F)		 7°C
(45°F)		 4°C
(39°F)		 3°C
(38°F)		 4°C
(39°F)		 9°C
(48°F)		 12°C
(54°F)		 14°C
(57°F)		 16°C
(61°F)
Mean minimum 12°C
(55°F)		 13°C
(56°F)		 10°C
(50°F)		 5°C
(42°F)		 1°C
(34°F)		 -2°C
(29°F)		 -3°C
(26°F)		 -2°C
(28°F)		 -0°C
(31°F)		 4°C
(40°F)		 7°C
(44°F)		 11°C
(52°F)
Minimum 11°C
(53°F)		 11°C
(53°F)		 8°C
(46°F)		 3°C
(38°F)		 -2°C
(28°F)		 -5°C
(24°F)		 -5°C
(23°F)		 -5°C
(23°F)		 -2°C
(28°F)		 3°C
(37°F)		 5°C
(41°F)		 10°C
(51°F)

Compare climate in Postmasburg with other places

Compare temperature, precipitation, sunshine, UV index in Postmasburg, Northern Cape, South Africa with other places around the world.

Monthly average precipitation in Postmasburg, Northern Cape, South Africa §

Postmasburg usually has the most precipitation in January, February and December, with an average of 9 rainy days and 70 mm (2.8 inches) of precipitation per month.The driest months in Postmasburg are June, July and August. On average, 2 mm (0.1 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Postmasburg, Northern Cape, 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) 74 (2.9) 76 (3.0) 38 (1.5) 54 (2.1) 3 (0.1) 2 (0.1) 2 (0.1) 1 (0.1) 3 (0.1) 16 (0.6) 23 (0.9) 61 (2.4)
Average precipitation days (≥ 1 mm) 8 11 8 7 1 0 0 0 0 3 4 9

Monthly sunshine hours in Postmasburg, Northern Cape, South Africa §

The sunniest months in Postmasburg are October, November and December, when the sun shines an average of 12 hours 47 minutes a day.Least sunny months in Postmasburg: May, June and July receive an average of 10 hours 5 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Postmasburg, Northern Cape, 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 320 346 364 324 317 297 313 333 344 375 391 409
Mean daily daylight hours 13h 41m 13h 2m 12h 12m 11h 22m 10h 41m 10h 21m 10h 31m 11h 7m 11h 55m 12h 46m 13h 30m 13h 53m

Solar UV radiation in Postmasburg, Northern Cape, South Africa §

Postmasburg experiences the highest level of ultraviolet (UV) radiation in January, February 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 Moderate / 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 Postmasburg UV Index data.

Average daily maximum UV levels by month for Postmasburg, Northern Cape, 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) 15 16 13 10 7 5 6 8 11 13 14 16