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Monthly climate in Graaff-Reinet, Eastern Cape, South Africa

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Graaff-Reinet features a cold semi-arid climate (BSk).Temperatures typically range between 12 °C (53 °F) and 23 °C (73 °F) through the year, but rarely can drop to -5 °C (24 °F) or can rise to as high as 40 °C (105 °F).The average annual precipitation amounts to about 411 mm (16.2 inches) and receives 67 rainy days on the 1 mm (0.04 inches) threshold annually.Graaff-Reinet enjoys an average of 4077 hours of sunshine throughout the year, and daylight varies from 10 hours 3 minutes to 14 hours 12 minutes per day.

Monthly average temperatures in Graaff-Reinet, Eastern Cape, South Africa §

The warmest months in Graaff-Reinet are January, February and December, with daily mean temperatures ranging from 21 to 23 °C (70 - 73 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 12 to 12 °C (53 - 55 °F) throughout the day. On average each year, Graaff-Reinet experiences 170 days above 25 °C (77.0 °F) and 7 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Graaff-Reinet, Eastern 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 40°C
(104°F)		 40°C
(105°F)		 40°C
(104°F)		 37°C
(99°F)		 31°C
(87°F)		 29°C
(84°F)		 28°C
(83°F)		 32°C
(89°F)		 37°C
(99°F)		 39°C
(102°F)		 40°C
(104°F)		 40°C
(104°F)
Mean maximum 39°C
(102°F)		 38°C
(100°F)		 36°C
(98°F)		 33°C
(92°F)		 29°C
(84°F)		 25°C
(77°F)		 26°C
(79°F)		 29°C
(85°F)		 33°C
(92°F)		 37°C
(98°F)		 37°C
(99°F)		 38°C
(101°F)
Average high 31°C
(87°F)		 30°C
(86°F)		 28°C
(83°F)		 24°C
(76°F)		 23°C
(73°F)		 20°C
(69°F)		 20°C
(68°F)		 20°C
(67°F)		 23°C
(74°F)		 26°C
(78°F)		 27°C
(81°F)		 29°C
(85°F)
Daily mean 23°C
(73°F)		 22°C
(73°F)		 21°C
(70°F)		 17°C
(63°F)		 15°C
(59°F)		 12°C
(55°F)		 12°C
(53°F)		 12°C
(53°F)		 15°C
(60°F)		 18°C
(64°F)		 19°C
(66°F)		 21°C
(70°F)
Average low 16°C
(61°F)		 16°C
(61°F)		 14°C
(58°F)		 11°C
(52°F)		 8°C
(47°F)		 6°C
(42°F)		 4°C
(40°F)		 4°C
(40°F)		 7°C
(46°F)		 10°C
(50°F)		 11°C
(53°F)		 14°C
(57°F)
Mean minimum 10°C
(51°F)		 10°C
(51°F)		 8°C
(47°F)		 5°C
(41°F)		 2°C
(35°F)		 -1°C
(31°F)		 -3°C
(26°F)		 -1°C
(30°F)		 1°C
(33°F)		 3°C
(38°F)		 6°C
(43°F)		 8°C
(47°F)
Minimum 9°C
(48°F)		 8°C
(46°F)		 5°C
(42°F)		 3°C
(38°F)		 1°C
(33°F)		 -3°C
(26°F)		 -5°C
(24°F)		 -2°C
(29°F)		 -2°C
(29°F)		 2°C
(36°F)		 4°C
(39°F)		 7°C
(45°F)

Compare climate in Graaff-Reinet with other places

Compare temperature, precipitation, sunshine, UV index in Graaff-Reinet, Eastern Cape, South Africa with other places around the world.

Monthly average precipitation in Graaff-Reinet, Eastern Cape, South Africa §

Graaff-Reinet usually has the most precipitation in January, February and December, with an average of 9 rainy days and 60 mm (2.4 inches) of precipitation per month.The driest months in Graaff-Reinet are May, June and July. On average, 9 mm (0.3 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Graaff-Reinet, Eastern 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) 54 (2.1) 68 (2.7) 44 (1.7) 34 (1.3) 14 (0.6) 3 (0.1) 9 (0.4) 18 (0.7) 27 (1.1) 40 (1.6) 40 (1.6) 59 (2.3)
Average precipitation days (≥ 1 mm) 8 11 8 6 3 1 2 4 4 6 6 8

Monthly sunshine hours in Graaff-Reinet, Eastern Cape, South Africa §

The sunniest months in Graaff-Reinet are October, November and December, when the sun shines an average of 12 hours 48 minutes a day.Least sunny months in Graaff-Reinet: May, June and July receive an average of 9 hours 44 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Graaff-Reinet, Eastern 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 333 344 358 313 304 287 303 320 332 374 387 417
Mean daily daylight hours 13h 58m 13h 12m 12h 14m 11h 15m 10h 26m 10h 3m 10h 15m 10h 57m 11h 53m 12h 53m 13h 45m 14h 12m

Solar UV radiation in Graaff-Reinet, Eastern Cape, South Africa §

Graaff-Reinet experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 14 - 15, 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 6. For more detailed information, check out our hourly Graaff-Reinet UV Index data.

Average daily maximum UV levels by month for Graaff-Reinet, Eastern 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 14 12 9 6 4 4 6 10 12 13 15