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Monthly climate in Grabouw, Western Cape, South Africa

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Grabouw features a warm-summer Mediterranean climate (Csb).Temperatures typically range between 12 °C (55 °F) and 20 °C (69 °F) through the year, but rarely can drop to 6 °C (43 °F) or can rise to as high as 30 °C (87 °F).The average annual precipitation amounts to about 650 mm (25.6 inches) and receives 86 rainy days on the 1 mm (0.04 inches) threshold annually.Grabouw enjoys an average of 4007 hours of sunshine throughout the year, and daylight varies from 9 hours 53 minutes to 14 hours 22 minutes per day.

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

The warmest months in Grabouw are January, February and March, with daily mean temperatures ranging from 19 to 20 °C (66 - 69 °F) throughout the day. The coldest temperatures usually occur in July, August and September, when daily mean temperatures range from 12 to 14 °C (55 - 57 °F) throughout the day. On average each year, Grabouw experiences 26 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 Grabouw, 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 30°C
(87°F)		 29°C
(85°F)		 29°C
(85°F)		 30°C
(86°F)		 27°C
(81°F)		 24°C
(76°F)		 25°C
(78°F)		 25°C
(77°F)		 29°C
(84°F)		 29°C
(85°F)		 27°C
(81°F)		 28°C
(83°F)
Mean maximum 29°C
(84°F)		 28°C
(83°F)		 27°C
(82°F)		 27°C
(80°F)		 25°C
(77°F)		 22°C
(72°F)		 22°C
(72°F)		 22°C
(71°F)		 24°C
(75°F)		 25°C
(78°F)		 25°C
(78°F)		 27°C
(80°F)
Average high 23°C
(74°F)		 24°C
(75°F)		 22°C
(72°F)		 20°C
(69°F)		 19°C
(66°F)		 17°C
(63°F)		 16°C
(61°F)		 15°C
(60°F)		 17°C
(63°F)		 19°C
(66°F)		 20°C
(68°F)		 21°C
(71°F)
Daily mean 20°C
(68°F)		 20°C
(69°F)		 19°C
(66°F)		 17°C
(63°F)		 15°C
(60°F)		 14°C
(57°F)		 13°C
(56°F)		 12°C
(55°F)		 14°C
(57°F)		 16°C
(60°F)		 17°C
(63°F)		 19°C
(66°F)
Average low 17°C
(63°F)		 18°C
(64°F)		 16°C
(62°F)		 14°C
(58°F)		 13°C
(55°F)		 11°C
(53°F)		 10°C
(51°F)		 10°C
(50°F)		 11°C
(53°F)		 13°C
(55°F)		 14°C
(58°F)		 16°C
(61°F)
Mean minimum 15°C
(59°F)		 15°C
(59°F)		 13°C
(57°F)		 12°C
(53°F)		 10°C
(50°F)		 9°C
(48°F)		 7°C
(46°F)		 7°C
(45°F)		 9°C
(48°F)		 10°C
(50°F)		 11°C
(51°F)		 13°C
(56°F)
Minimum 14°C
(57°F)		 14°C
(57°F)		 13°C
(55°F)		 11°C
(52°F)		 10°C
(50°F)		 6°C
(44°F)		 7°C
(44°F)		 6°C
(43°F)		 7°C
(45°F)		 9°C
(48°F)		 9°C
(49°F)		 13°C
(55°F)

Compare climate in Grabouw with other places

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

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

Grabouw usually has the most precipitation in June, July and August, with an average of 10 rainy days and 94 mm (3.7 inches) of precipitation per month.The driest months in Grabouw are January, February and April. On average, 24 mm (0.9 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Grabouw, 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) 24 (0.9) 18 (0.7) 33 (1.3) 29 (1.2) 74 (2.9) 104 (4.1) 95 (3.7) 83 (3.3) 50 (2.0) 58 (2.3) 51 (2.0) 31 (1.2)
Average precipitation days (≥ 1 mm) 5 4 5 6 6 10 9 11 8 8 7 7

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

The sunniest months in Grabouw are October, November and December, when the sun shines an average of 12 hours 50 minutes a day.Least sunny months in Grabouw: May, June and July receive an average of 9 hours 6 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Grabouw, 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 337 356 352 309 287 264 285 307 325 372 388 420
Mean daily daylight hours 14h 7m 13h 17m 12h 15m 11h 11m 10h 19m 9h 53m 10h 7m 10h 52m 11h 53m 12h 57m 13h 53m 14h 22m

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

Grabouw 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 Grabouw UV Index data.

Average daily maximum UV levels by month for Grabouw, 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 7 5 3 4 6 9 11 12 14