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Contents
- The climate of Stellenbosch
- The best time to visit Stellenbosch
- The worst time to visit Stellenbosch
- Spring weather in Stellenbosch
- Summer weather in Stellenbosch
- Autumn weather in Stellenbosch
- Winter weather in Stellenbosch
- Weather in January
- Weather in February
- Weather in March
- Weather in April
- Weather in May
- Weather in June
- Weather in July
- Weather in August
- Weather in September
- Weather in October
- Weather in November
- Weather in December
- Frequently asked questions
- Average temperature
- Average pressure
- Average wind speed
- Average humidity
- Average rainfall
- Average rainfall days
- Average daylight
- Average sunshine
- Average sunshine days
- Average UV index
- Average cloud cover
- Average visibility
The climate of Stellenbosch
Stellenbosch, a charming town situated in the Western Cape province of South Africa, finds its weather characterized by the Köppen classification Csa. This classification denotes a Mediterranean climate with a hot summer. A thorough analysis of the climatological data illustrates a wide-ranging spectrum of weather conditions throughout the year in Stellenbosch, determined primarily by seasonal variances.
Coming under the influence of the Mediterranean climate, Stellenbosch experiences significant rainfalls during the winter months with the heaviest precipitation occurring from May onwards. The rainfall in this period touches a peak in the month of June with 103mm (4.06"), followed by 71mm (2.8") in August, tapering off gradually towards the end of the year. A relatively moisture-laden environment could be expected from May to August with the relative humidity hovering between 72% and 77%.
On the temperature spectrum, Stellenbosch registers its highest temperatures from January to March, with February heating up to a maximum of 27.3°C (81.1°F). Gradually as autumn sets in, the mercury drops to lower levels reaching down to 16.2°C (61.2°F) in July. It is not until October that a revival in warmth can be observed with the mercury climbing up to 21°C (69.8°F).
In terms of sunshine hours, there's a clear contrast between the balmy summer months with an excess of 10 daylight hours and the winter months that see less than 10 hours of daylight.
Coming under the influence of the Mediterranean climate, Stellenbosch experiences significant rainfalls during the winter months with the heaviest precipitation occurring from May onwards. The rainfall in this period touches a peak in the month of June with 103mm (4.06"), followed by 71mm (2.8") in August, tapering off gradually towards the end of the year. A relatively moisture-laden environment could be expected from May to August with the relative humidity hovering between 72% and 77%.
On the temperature spectrum, Stellenbosch registers its highest temperatures from January to March, with February heating up to a maximum of 27.3°C (81.1°F). Gradually as autumn sets in, the mercury drops to lower levels reaching down to 16.2°C (61.2°F) in July. It is not until October that a revival in warmth can be observed with the mercury climbing up to 21°C (69.8°F).
In terms of sunshine hours, there's a clear contrast between the balmy summer months with an excess of 10 daylight hours and the winter months that see less than 10 hours of daylight.
The best time to visit Stellenbosch
Optimum travel conditions to Stellenbosch can be expected during the months of February and March. This period offers enjoyable temperatures with highs of 27.3°C (81.1°F) and 25.8°C (78.4°F) respectively. The reduced rainfall during these two months, 8mm (0.31") and 12mm (0.47") respectively, makes them perfect for outdoor activities. Accompanied by over nine hours of daily sunshine and a UV index of 6, visiting Stellenbosch during these months presents an exceptional opportunity for exploration and sightseeing.
The worst time to visit Stellenbosch
The least favourable time to plan a visit to Stellenbosch is during the winter season, particularly in June. During this period, the city experiences the heaviest rainfall of the year at 103mm (4.06"). The daylight duration is also shortest, being limited to 9.9 hours, and sunshine hours plummet to the annual lowest of 5.9 hours.
Spring weather in Stellenbosch
Spring ushers in pleasant weather with a maximum temperature fluctuating between 19.8°C (67.6°F) and 22.7°C (72.9°F). Rainfall begins to subside, going down to 42mm (1.65") in September and further reducing to 29mm (1.14") by November. Despite the shortening of daylight duration from 10.4 hours to 12.9 hours, the sunshine duration remains nearly consistent at around nine hours. The UV index during this season varies between 4 and 5.
Summer weather in Stellenbosch
The summer months in Stellenbosch, starting from December to February, are characterized by high temperatures that can swing up to 27.3°C (81.1°F). However, the generous sunshine duration of above 10 hours daily and a low rainfall of between 14mm (0.55") to 18mm (0.71") enhance the overall pleasantness of the season. The UV index stands at 6 in this period, necessitating adequate sun protection during outside activities.
Autumn weather in Stellenbosch
With autumn, mild and comfortable temperatures are introduced, easing from a balmy 25.8°C (78.4°F) in March to 16.2°C (61.2°F) by July. Rainfall shows a significant increase during these months, commencing at a reasonable 12mm (0.47") in March and escalating to a substantial 103mm (4.06") by June. As the days shorten and sunshine becomes less frequent, a humid atmosphere is heralded with humidity levels ranging from 68% to 76%.
Winter weather in Stellenbosch
Winters in Stellenbosch are idyllically mild, with high temperatures remaining between 16.2°C (61.2°F) to 16.3°C (61.3°F) from June to August. A certain degree of wetness is associated with winters, with the rainfall amount varying from 67mm (2.64") to 71mm (2.8") across these months. Daylight duration experiences a small rebound from 9.9 hours in June to 10.9 hours in August, while sunshine hours also revive slightly to around 7 hours. Despite the reduced visibility of 9 km, a relatively windless atmosphere with a mild breeze at 11.6km/h (7.2mph) sets a tranquil winter scene.
Weather in January
A new year in Stellenbosch starts with temperatures and persepectives peaking. January reaches its apex with temperatures going from 15.8°C (60.4°F) to 26.8°C (80.2°F), among the highest observed in the city. While transitioning from December, less rain is noticed with predominantly sunny days due to lower cloud cover. Weather in January »
Weather in February
In Stellenbosch, February's weather maintains the vigil of warmth with a subtle drop. Record shows slightly lower rainfall compared to January, indicating drier conditions. However, no drastic changes in temperature or humidity are felt between these two months. Weather in February »
Weather in March
The climatic pattern of Stellenbosch in March takes minor turns from February. The temperature recedes a bit allowing for more temperate conditions. A hint of additional rain is experienced with a relative increase in cloud cover and humidity. Weather in March »
Weather in April
April brings a more significant shuffle in Stellenbosch's weather than the transition seen in March. While temperatures continue to drop, rainfall peaks from March's average 12mm (0.47") to 35mm (1.38"), indicating the onset of a wet period. Weather in April »
Weather in May
May in Stellenbosch unfolds with a continuous cool-down, achieved by a consistent drop in temperature from April. The month showers the city with its highest average rainfall, 42mm (1.65"). Clouds become a more typical part of the sky, leading to an increase in relative humidity. Weather in May »
Weather in June
June in Stellenbosch is characterized by a wintry facade. The coolest phase revisits with average temperatures going down to 8.7°C (47.7°F) to 16.2°C (61.2°F). Despite a dip in rainfall from May's level, June stands as the month with maximum rainy days, signaling the height of the wet season. Weather in June »
Weather in July
July perpetuates the cooler weather pattern from June in Stellenbosch. Temperature and rainfall levels remain quite identical, marking a stable phase in the city's weather. There is also a semblance in cloud percentage and relative humidity. Weather in July »
Weather in August
Stellenbosch experiences a noteworthy shift in the weather during August. The rainfall maxes out at 71mm (2.8"), creating the wettest chapter of the year. However, steadily increasing daylight brings a contrast to the town's gloomy rains. Weather in August »
Weather in September
September provides a sign of respite from rainfall to the people of Stellenbosch. This month brings a considerable drop in rainfall from the saturating wetness of August. As a result, cloud cover starts to thin out, making way for more sunshine hours. Weather in September »
Weather in October
October in Stellenbosch witnesses a substantial uplift in weather conditions from September. A temperature increase hints at the city's slow but steady return to its warmer days. Sunshine hours climb back into the double digits, bathing the city in bright daylight for longer periods. Weather in October »
Weather in November
Stellenbosch embraces the high-spirited November with a warmer demeanor and falling rain. Unhindered by excessive rainfall, the city enjoys clear skies for more hours due to declining cloud cover. This drop in cloud presence is synonymous with the fall in rainfall from October's level. Weather in November »
Weather in December
Stellenbosch culminates the year in December graced by a combination of ascending temperature and descending precipitation. As a result, December stands distinct amongst other months with maximum daylight hours and lower average rainfall. Weather in December »
[Resources]Frequently asked questions
How much does it rain in Stellenbosch?
In Stellenbosch, during the entire year, the rain falls for 109.6 days and collects up to 458mm (18.03") of precipitation.
What is the month with the highest UV index in Stellenbosch?
The months with the highest UV index are January, February and December, with an average maximum UV index of 6.
What are the warmest months in Stellenbosch?
Stellenbosch records the warmest temperatures in February, averaging a high of 27.3°C (81.1°F) and a low of 15.8°C (60.4°F).
What is the least humid month in Stellenbosch?
The least humid month is February, with an average relative humidity of 66%.
What is the driest month in Stellenbosch?
February is the month with the least rainfall in Stellenbosch, South Africa. Rain falls for 4.5 days and accumulates 8mm (0.31") of precipitation.
What are the months with the lowest UV index in Stellenbosch?
April through September, with an average maximum UV index of 4, are months with the lowest UV index.
What part of the year is the coldest in Stellenbosch?
June and July, when the average high-temperature in Stellenbosch reaches 16.2°C (61.2°F), are the coldest months.
What is the rainiest month in Stellenbosch?
The month with the most rainfall in Stellenbosch, South Africa, is June, when the rain falls for 13.1 days and typically aggregates up to 103mm (4.06") of precipitation.
What is the month with the shortest days in Stellenbosch?
The month with the shortest days in Stellenbosch is June, with an average of 9h and 54min of daylight.
What is the month with the least sunshine in Stellenbosch?
With an average of 5.9h of sunshine, June has the least sunshine of the year in Stellenbosch, South Africa.
What is the most humid month in Stellenbosch?
The months with the highest humidity are August and September, with an average relative humidity of 77%.
When are the longest days in Stellenbosch?
The month with the longest days is December, with an average of 14h and 24min of daylight.
Is there Daylight Saving Time (DST) in Stellenbosch?
Stellenbosch does not observe Daylight Saving Time (DST). SAST timezone is used over the entire year.
What month has the most sunshine in Stellenbosch?
The month with the most sunshine is December, with an average of 11.2h of sunshine.
Average temperature
Stellenbosch, South Africa
The warmest month (with the highest average high temperature) is February (27.3°C).
The months with the lowest average high temperature are June and July (16.2°C).
The months with the highest average low temperature are January and February (15.8°C).
The coldest month (with the lowest average low temperature) is August (7.6°C).
Average pressure
Stellenbosch, South Africa
- Average pressure in January:
1013.5mbar - Average pressure in February:
1013.4mbar - Average pressure in March:
1015mbar - Average pressure in April:
1017.5mbar - Average pressure in May:
1018.1mbar - Average pressure in June:
1020.2mbar
- Average pressure in July:
1022.1mbar - Average pressure in August:
1020.4mbar - Average pressure in September:
1019.6mbar - Average pressure in October:
1017.6mbar - Average pressure in November:
1015.8mbar - Average pressure in December:
1014.2mbar
The month with the highest atmospheric pressure is July (1022.1mbar).
The month with the lowest atmospheric pressure is February (1013.4mbar).
Average wind speed
Stellenbosch, South Africa
- Average wind speed in January:
13.5km/h - Average wind speed in February:
12.9km/h - Average wind speed in March:
11.9km/h - Average wind speed in April:
11.4km/h - Average wind speed in May:
11.1km/h - Average wind speed in June:
12.3km/h
- Average wind speed in July:
11.6km/h - Average wind speed in August:
11.6km/h - Average wind speed in September:
12.1km/h - Average wind speed in October:
12.4km/h - Average wind speed in November:
13.5km/h - Average wind speed in December:
13.2km/h
The windiest months (with the highest average wind speed) are January and November (13.5km/h).
The calmest month (with the lowest average wind speed) is May (11.1km/h).
Average humidity
Stellenbosch, South Africa
The months with the highest relative humidity are August and September (77%).
The month with the lowest relative humidity is February (66%).
Average rainfall
Stellenbosch, South Africa
The wettest month (with the highest rainfall) is June (103mm).
The driest month (with the least rainfall) is February (8mm).
Average rainfall days
Stellenbosch, South Africa
- Average rainfall days in January:
6.3 days - Average rainfall days in February:
4.5 days - Average rainfall days in March:
6.7 days - Average rainfall days in April:
9.1 days - Average rainfall days in May:
10.3 days - Average rainfall days in June:
13.1 days
- Average rainfall days in July:
10.4 days - Average rainfall days in August:
13.5 days - Average rainfall days in September:
11.5 days - Average rainfall days in October:
9.5 days - Average rainfall days in November:
7.5 days - Average rainfall days in December:
7.2 days
The month with the highest number of rainy days is August (13.5 days).
The month with the least rainy days is February (4.5 days).
Average daylight / Average sunshine
Stellenbosch, South Africa
- Average daylight in January:
14h and 1min - Average daylight in February:
13h and 2min - Average daylight in March:
12h and 2min - Average daylight in April:
11h and 1min - Average daylight in May:
10h and 2min - Average daylight in June:
9h and 5min
- Average daylight in July:
10h and 1min - Average daylight in August:
10h and 5min - Average daylight in September:
11h and 5min - Average daylight in October:
12h and 5min - Average daylight in November:
13h and 5min - Average daylight in December:
14h and 2min
The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).
- Average sunshine in January:
11h and 1min - Average sunshine in February:
9h and 3min - Average sunshine in March:
9h and 1min - Average sunshine in April:
8h and 4min - Average sunshine in May:
6h and 2min - Average sunshine in June:
5h and 5min
- Average sunshine in July:
6h and 4min - Average sunshine in August:
7h and 4min - Average sunshine in September:
7h and 5min - Average sunshine in October:
9h and 2min - Average sunshine in November:
10h and 4min - Average sunshine in December:
11h and 1min
The month with the most sunshine is December (Average sunshine: 11h and 12min).
The month with the least sunshine is June (Average sunshine: 5h and 54min).
Average sunshine days
Stellenbosch, South Africa
- Average sunshine days in January:
22.7 days - Average sunshine days in February:
20.9 days - Average sunshine days in March:
23.1 days - Average sunshine days in April:
19.2 days - Average sunshine days in May:
19.2 days - Average sunshine days in June:
14.5 days
- Average sunshine days in July:
19 days - Average sunshine days in August:
15.8 days - Average sunshine days in September:
16.3 days - Average sunshine days in October:
18.8 days - Average sunshine days in November:
20.7 days - Average sunshine days in December:
22.4 days
The month with the most sunshine days is March (23.1 days).
The month with the least sunshine days is June (14.5 days).
Average UV index
Stellenbosch, South Africa
The months with the highest UV index are January, February and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August and September (UV index 4).
Average cloud cover
Stellenbosch, South Africa
The month with the most cloud cover is June (Cloud cover 35).
The month with the least cloud cover is February (Cloud cover 15).
Average visibility
Stellenbosch, South Africa
The months with the highest visibility are January, February, March, April, June, October, November and December (10km).
The months with the lowest visibility are May, July, August and September (9km).
Stellenbosch, South Africa
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