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Monthly climate in Robertson, Western Cape, South Africa

Last updated: May 6, 2024

Under the Köppen–Geiger climate classification Robertson features a cold semi-arid climate (BSk).Temperatures typically range between 11 °C (52 °F) and 22 °C (72 °F) through the year, but rarely can drop to -2 °C (29 °F) or can rise to as high as 42 °C (107 °F).The average annual precipitation amounts to about 343 mm (13.5 inches) and receives 67 rainy days on the 1 mm (0.04 inches) threshold annually.Robertson enjoys an average of 4064 hours of sunshine throughout the year, and daylight varies from 9 hours 55 minutes to 14 hours 20 minutes per day.

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

The warmest months in Robertson are January, February and March, with daily mean temperatures ranging from 20 to 22 °C (68 - 72 °F) throughout the day. The coldest temperatures usually occur in June, July and August, when daily mean temperatures range from 11 to 12 °C (52 - 54 °F) throughout the day. On average each year, Robertson experiences 148 days above 25 °C (77.0 °F) and 2 days below 0 °C (32.0 °F).

Monthly average temperatures with daily means, minimums and maximums for period, average high and low temperatures in Robertson, 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 42°C
(107°F)		 38°C
(101°F)		 37°C
(99°F)		 36°C
(98°F)		 30°C
(87°F)		 27°C
(81°F)		 29°C
(84°F)		 29°C
(84°F)		 35°C
(95°F)		 37°C
(99°F)		 37°C
(98°F)		 40°C
(103°F)
Mean maximum 38°C
(101°F)		 37°C
(98°F)		 36°C
(96°F)		 33°C
(92°F)		 30°C
(86°F)		 25°C
(77°F)		 25°C
(78°F)		 26°C
(79°F)		 31°C
(89°F)		 34°C
(93°F)		 35°C
(95°F)		 35°C
(96°F)
Average high 29°C
(85°F)		 30°C
(85°F)		 27°C
(81°F)		 24°C
(76°F)		 22°C
(71°F)		 19°C
(66°F)		 18°C
(64°F)		 17°C
(63°F)		 21°C
(70°F)		 24°C
(76°F)		 25°C
(78°F)		 27°C
(81°F)
Daily mean 22°C
(71°F)		 22°C
(72°F)		 20°C
(68°F)		 17°C
(63°F)		 15°C
(59°F)		 12°C
(54°F)		 11°C
(52°F)		 11°C
(52°F)		 14°C
(57°F)		 17°C
(62°F)		 18°C
(65°F)		 20°C
(68°F)
Average low 15°C
(60°F)		 16°C
(61°F)		 14°C
(58°F)		 11°C
(53°F)		 9°C
(48°F)		 6°C
(44°F)		 5°C
(41°F)		 5°C
(41°F)		 8°C
(46°F)		 10°C
(51°F)		 12°C
(53°F)		 14°C
(57°F)
Mean minimum 11°C
(51°F)		 11°C
(52°F)		 9°C
(49°F)		 7°C
(44°F)		 3°C
(39°F)		 2°C
(36°F)		 -0°C
(31°F)		 0°C
(33°F)		 2°C
(36°F)		 4°C
(40°F)		 7°C
(44°F)		 9°C
(49°F)
Minimum 10°C
(50°F)		 10°C
(50°F)		 8°C
(46°F)		 4°C
(40°F)		 2°C
(36°F)		 -0°C
(31°F)		 -2°C
(29°F)		 -1°C
(31°F)		 1°C
(33°F)		 3°C
(37°F)		 5°C
(41°F)		 9°C
(48°F)

Compare climate in Robertson with other places

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

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

Robertson usually has the most precipitation in March, July and November, with an average of 6 rainy days and 38 mm (1.5 inches) of precipitation per month.The driest months in Robertson are February, April and September. On average, 19 mm (0.8 inches) of precipitation falls during these months.

Monthly average precipitation and precipitation days in Robertson, 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) 31 (1.2) 17 (0.7) 37 (1.5) 16 (0.6) 27 (1.1) 28 (1.1) 37 (1.5) 34 (1.3) 25 (1.0) 28 (1.1) 39 (1.5) 25 (1.0)
Average precipitation days (≥ 1 mm) 5 5 7 5 4 6 6 6 6 6 6 5

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

The sunniest months in Robertson are October, November and December, when the sun shines an average of 12 hours 53 minutes a day.Least sunny months in Robertson: May, June and July receive an average of 9 hours 24 minutes of sunshine daily.

Mean monthly sunshine duration, average sunshine hours per day and mean daily daylight hours in Robertson, 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 335 358 358 315 297 275 292 312 331 373 392 420
Mean daily daylight hours 14h 5m 13h 16m 12h 14m 11h 12m 10h 20m 9h 55m 10h 8m 10h 53m 11h 53m 12h 56m 13h 52m 14h 20m

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

Robertson 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 exposure category. In these months, the maximum values of the UV index do not exceed 5. For more detailed information, check out our hourly Robertson UV Index data.

Average daily maximum UV levels by month for Robertson, 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) 15 14 11 8 5 4 4 6 9 12 13 15