Stellenbosch, in South Africa’s Western Cape, enjoys a Mediterranean climate with hot, dry summers and cool, wet winters. The town is famous for its vineyards, mountain scenery, and vibrant seasons. With abundant sunshine in summer, lush landscapes in spring, and cosy winters, Stellenbosch is a year-round destination for wine lovers, outdoor adventurers, and cultural explorers.
The best times to travel section shows how the months compare for a visit, so you can find the time of year that fits what you want to do.
Background colours of the months:
The colour shows the typical temperature: yellow (hot), green (mild) and blue (cold). How strong the colour is shows the travel season: full colour means high season, soft colour means shoulder season and soft-striped means off season.
Weather symbols:
Each month has one symbol showing what the weather is typically like, such as hot and sunny, freezing or a rainy or snowy season. Use them to quickly spot months that match the weather you want, or to avoid the ones that don't.
Crowdedness:
The people icon shows how busy the place usually is. The more people, the more crowded it gets.
Additional notes:
The grey info boxes point out special things worth knowing, like recurring weather issues or seasonal events.
Stellenbosch’s climate is characterised by marked seasonal contrasts, shaped by its proximity to the mountains and the Atlantic Ocean. Summers (December–February) are hot, dry, and mostly clear, with average daytime highs of 27–30°C and nighttime lows of 13–16°C. January is typically the hottest month, and heatwaves can push temperatures above 35°C. Rainfall is minimal in summer, with most months receiving less than 30 mm, and sunshine is abundant, offering 10–11 hours daily. Evenings are cooler, making outdoor dining and events pleasant. The UV index is very high, so sun protection is essential.
Winters (June–August) are cool, wet, and partly cloudy, with highs of 15–18°C and lows of 5–8°C. June and July are the wettest months, each averaging 100–160 mm of rain and 12–13 rainy days. Rain often falls in short, intense bursts, and mornings can be misty. Snow is rare but possible on the surrounding mountains. Spring (September–November) and autumn (March–May) are mild and comfortable, with highs of 18–24°C, lows of 8–12°C, and moderate rainfall. These shoulder seasons are ideal for exploring vineyards, hiking, and enjoying the countryside in bloom or harvest. Winds are present year-round, sometimes brisk in winter, but generally moderate. Stellenbosch receives around 800 mm of rain annually and enjoys over 3,000 hours of sunshine, supporting its lush gardens and renowned wine estates.
| Average climate data for Stellenbosch, South Africa | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Average maximum temperature (°C) | 27 | 27 | 26 | 23 | 20 | 16 | 16 | 16 | 18 | 21 | 23 | 25 | 27 |
| Average minimum temperature (°C) | 16 | 16 | 15 | 13 | 11 | 9 | 8 | 8 | 9 | 11 | 13 | 14 | 8 |
| Average precipitation (mm) | 14 | 8 | 12 | 35 | 41 | 103 | 67 | 70 | 38 | 29 | 21 | 18 | 456 |
| Average rainfall days (days) | 6 | 4 | 7 | 9 | 10 | 13 | 11 | 14 | 12 | 9 | 7 | 7 | 110 |
| Average relative humidity (%) | 67 | 65 | 69 | 69 | 71 | 75 | 76 | 77 | 78 | 71 | 67 | 68 | 71 |
| Average wind speed (km/h) | 14 | 13 | 12 | 11 | 11 | 12 | 11 | 12 | 12 | 12 | 13 | 13 | 12 |
| Average daily daylight hours (h) | 14 | 13 | 12 | 11 | 10 | 9 | 10 | 10 | 11 | 12 | 13 | 14 | 12 |
| Average daily sunshine hours (h) | 11 | 9 | 9 | 8 | 6 | 5 | 6 | 7 | 7 | 9 | 10 | 11 | 8 |
| Average cloud coverage (%) | 17 | 16 | 19 | 24 | 31 | 35 | 28 | 34 | 35 | 26 | 23 | 18 | 26 |
| Average UV index | 6 | 6 | 5 | 4 | 4 | 4 | 4 | 4 | 4 | 5 | 5 | 6 | 5 |
The best time to visit Stellenbosch is during spring (September–November) and autumn (March–May), when the weather is mild, the vineyards are at their most beautiful, and crowds are smaller. These seasons offer ideal conditions for wine tasting, hiking, and outdoor events, with comfortable temperatures and vibrant landscapes.
The least favourable time to visit Stellenbosch is in winter (June–August), when cool, wet weather and frequent rain can limit outdoor activities. While the town is cosy and less crowded, rain and chilly evenings may not appeal to all travellers. Summer (December–February) can also be very hot and busy.
Stellenbosch has a Mediterranean climate with hot, dry summers and cool, wet winters. Summers are sunny and warm, while winters are cooler and rainier. Spring and autumn offer mild, comfortable weather.
Spring (September–November) and autumn (March–May) are the best times to visit, with mild weather, beautiful vineyards, and fewer crowds. These seasons are ideal for wine tours, hiking, and outdoor activities.
Rainfall is moderate, with most rain falling in winter (June–August). June and July are the wettest months, each averaging 100–160 mm. Summer is much drier, with minimal rainfall and mostly clear skies.
Summer highs in Stellenbosch typically reach 27–30°C, with January being the hottest month. Heatwaves can push temperatures above 35°C, but evenings are usually cooler and pleasant.
Yes, Stellenbosch is windy year-round, with breezes most noticeable in winter and spring. Winds are generally moderate but can be brisk during storms. The wind helps keep summer heat comfortable.
Pack light, breathable clothing and sun protection for summer. In spring and autumn, bring layers and a light jacket. For winter, bring warm clothes and a rain jacket. Comfortable shoes are essential for vineyard visits and hiking.
Yes, several beaches are within an hour’s drive, including Strand Beach and Pringle Bay. Summer and early autumn are best for beach trips, but the Atlantic can be cool even in warm weather.
The warmest month, with the highest average maximum temperature, is February (27.3 °C). The month with the lowest average maximum temperature is July (16.2 °C). Overall, the average maximum temperature over the whole year is 21.5 °C.
The month with the highest average minimum temperature is February (15.8 °C). The coldest month, with the lowest average minimum temperature, is August (7.6 °C). Overall, the average minimum temperature over the whole year is 11.8 °C.
The wettest month, with the highest amount of precipitation, is June (103.2 mm). The driest month, with the least amount of precipitation, is February (7.9 mm). Over the whole year there are 456.4 mm of rainfall on average.
The month with the most days of rain is August (13.6 days). The month with the fewest days of rain is February (4.5 days). Over the whole year there are 109.6 days of rain on average.
The month with the highest average relative humidity is September (77.8 %). The month with the lowest average relative humidity is February (65.3 %). The overall average relative humidity over the whole year is 71.2 %.
The windiest month, with the highest average wind speed, is January (13.5 km/h). The calmest month, with the lowest average wind speed, is May (11 km/h). The overall average wind speed over the whole year is 12.3 km/h.
The month with the cloudiest skies, so the highest cloud coverage, is June (35.3 %). The month with the clearest skies, so the lowest cloud coverage, is February (15.9 %). Over the whole year there is an average cloud coverage of 25.6 %.
The month with the longest days, so the most daylight, is December (Average daylight: 14 h). The month with the shortest days, so the least daylight, is June (Average daylight: 9.1 h). Over the whole year there are 11.6 h of daylight per day on average.
The month with the most sunshine per day is December (Average sunshine: 11.1 h). The month with the least sunshine per day is June (Average sunshine: 5.1 h). Over the whole year there are 8.2 h of sunlight per day on average.
The months with the highest average UV index are January, February and December (UV index: 6). The months with the lowest average UV index are April, May, June, July, August and September (UV index: 4). Over the whole year the average UV index is 4.8.
