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Monthly climate in Stellenbosch, Western Cape, South Africa

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Stellenbosch features a hot-summer Mediterranean climate (Csa).Temperatures typically range between 12 °C (54 °F) and 21 °C (70 °F) through the year, but rarely can drop to 5 °C (41 °F) or can rise to as high as 32 °C (91 °F).The average annual precipitation amounts to about 708 mm (27.9 inches) and receives 84 rainy days on the 1 mm (0.04 inches) threshold annually.Stellenbosch enjoys an average of 4028 hours of sunshine throughout the year, and daylight varies from 9 hours 54 minutes to 14 hours 21 minutes per day.

Monthly average temperatures in Stellenbosch, Western Cape, South Africa §

The warmest months in Stellenbosch are January, February and March, with daily mean temperatures ranging from 19 to 21 °C (67 - 70 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 12 to 13 °C (54 - 56 °F) throughout the day. On average each year, Stellenbosch experiences 55 days above 25 °C (77.0 °F) and 0 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Stellenbosch, Western 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 32°C
(90°F)		 31°C
(89°F)		 32°C
(90°F)		 32°C
(91°F)		 27°C
(81°F)		 25°C
(77°F)		 25°C
(77°F)		 26°C
(78°F)		 29°C
(85°F)		 30°C
(86°F)		 29°C
(84°F)		 31°C
(89°F)
Mean maximum 31°C
(88°F)		 31°C
(87°F)		 30°C
(86°F)		 28°C
(83°F)		 26°C
(78°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(73°F)		 25°C
(77°F)		 27°C
(81°F)		 27°C
(81°F)		 29°C
(85°F)
Average high 25°C
(77°F)		 25°C
(78°F)		 24°C
(75°F)		 22°C
(71°F)		 19°C
(67°F)		 17°C
(63°F)		 16°C
(61°F)		 16°C
(60°F)		 17°C
(64°F)		 20°C
(68°F)		 21°C
(70°F)		 23°C
(73°F)
Daily mean 21°C
(70°F)		 21°C
(70°F)		 19°C
(67°F)		 17°C
(63°F)		 15°C
(59°F)		 13°C
(56°F)		 12°C
(54°F)		 12°C
(54°F)		 14°C
(57°F)		 16°C
(61°F)		 17°C
(63°F)		 19°C
(67°F)
Average low 17°C
(63°F)		 17°C
(63°F)		 16°C
(61°F)		 14°C
(57°F)		 12°C
(53°F)		 10°C
(51°F)		 9°C
(49°F)		 9°C
(48°F)		 10°C
(51°F)		 12°C
(54°F)		 14°C
(57°F)		 15°C
(60°F)
Mean minimum 14°C
(57°F)		 14°C
(58°F)		 13°C
(55°F)		 11°C
(52°F)		 8°C
(47°F)		 7°C
(45°F)		 6°C
(43°F)		 5°C
(42°F)		 7°C
(45°F)		 8°C
(47°F)		 10°C
(50°F)		 13°C
(55°F)
Minimum 13°C
(55°F)		 13°C
(56°F)		 12°C
(54°F)		 10°C
(50°F)		 7°C
(45°F)		 6°C
(43°F)		 5°C
(41°F)		 5°C
(41°F)		 6°C
(42°F)		 6°C
(44°F)		 9°C
(48°F)		 12°C
(54°F)

Compare climate in Stellenbosch with other places

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

Monthly average precipitation in Stellenbosch, Western Cape, South Africa §

Stellenbosch usually has the most precipitation in June, July and August, with an average of 11 rainy days and 113 mm (4.5 inches) of precipitation per month.The driest months in Stellenbosch are January, February and March. On average, 21 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Stellenbosch, Western 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) 20 (0.8) 12 (0.5) 30 (1.2) 37 (1.5) 80 (3.2) 132 (5.2) 117 (4.6) 91 (3.6) 58 (2.3) 52 (2.1) 46 (1.8) 31 (1.2)
Average precipitation days (≥ 1 mm) 3 3 4 5 8 11 10 13 9 7 5 6

Monthly sunshine hours in Stellenbosch, Western Cape, South Africa §

The sunniest months in Stellenbosch are October, November and December, when the sun shines an average of 12 hours 52 minutes a day.Least sunny months in Stellenbosch: May, June and July receive an average of 9 hours 10 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Stellenbosch, Western 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 339 358 353 312 290 265 287 309 326 373 389 420
Mean daily daylight hours 14h 6m 13h 17m 12h 14m 11h 12m 10h 20m 9h 54m 10h 8m 10h 53m 11h 53m 12h 56m 13h 52m 14h 21m

Solar UV radiation in Stellenbosch, Western Cape, South Africa §

Stellenbosch experiences the highest level of ultraviolet (UV) radiation in January, February and December, when the maximum UV index can reach values of 13 - 14, which corresponds to the Extreme category of sun exposure.May, June and July are in the Moderate exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Stellenbosch UV Index data.

Average daily maximum UV levels by month for Stellenbosch, Western 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) 14 13 11 8 5 4 4 6 9 11 12 14