Stellenbosch records about 785mm of rain across roughly 75 wet days a year, which is a 21% chance on an average day. June is the wettest month at 92mm (12% of the annual total) and February the driest at 12mm. Local rain type: steady rain. Stellenbosch has a classic wine-country climate — wet winters feed the vines, dry summers ripen the grapes. Wine tasting is the perfect rainy-day activity.
Chance of rain on an average day: 21%
Rainfall climatology for Stellenbosch. The live hour-by-hour answer for today loads at the top of this page from Open-Meteo and refreshes through the day — the figures below describe a typical year, not today.
Last updated: · Live forecast data refreshes hourly.
| Annual rainfall | 785mm |
| Rain days per year | 75 |
| Odds on an average day | 21% |
| Wettest month | June — 92mm over 14 days |
| Driest month | February — 12mm over 2 days |
| Rain type | steady rain |
| Best dry window | November through March offers dry, warm harvest-season weather. |
| Worst rain window | June and July bring winter rain essential for the vineyards. |
June delivers 667% more rain than February (92mm vs 12mm). That gap is the difference between planning around showers and ignoring them.
No single month holds more than 12% of the annual total, so rain in Stellenbosch is spread through the year — there is no season you can rely on being dry.
Stellenbosch rain typically comes as discrete showers, so a compact umbrella and a flexible plan are usually enough.
Rain falls on about 14 days in June against 2 in February — the frequency swing matters more for planning than the millimetre totals.
Climate normals. Use them to judge whether today's live forecast at the top of the page is typical or unusual for the season.
| Month | Rainfall | Rain days | Chance on a given day | Highs |
|---|---|---|---|---|
| January | 15mm | 2 | 7% | 28°C |
| February | 12mm | 2 | 7% | 28°C |
| March | 18mm | 3 | 10% | 26°C |
| April | 42mm | 6 | 20% | 24°C |
| May | 72mm | 11 | 37% | 20°C |
| June | 92mm | 14 | 47% | 18°C |
| July | 82mm | 12 | 40% | 16°C |
| August | 72mm | 11 | 37% | 16°C |
| September | 42mm | 6 | 20% | 18°C |
| October | 28mm | 4 | 13% | 20°C |
| November | 18mm | 3 | 10% | 24°C |
| December | 12mm | 2 | 7% | 26°C |
Rain probability is the chance that at least 0.2mm falls at your location — not how long it rains. For Stellenbosch we combine the hourly probability curve, expected volume in millimetres, and the city's own rainfall record into a single umbrella verdict.
| Factor | Weight | What it measures |
|---|---|---|
| Hourly probability | 40% | Peak and sustained chance of measurable rain across the next 24 hours. |
| Expected volume | 30% | Total millimetres, which separates a passing shower from a genuine soaking. |
| Timing & duration | 20% | When rain starts, when it eases, and the longest continuous dry window. |
| Local rain type | 10% | Drizzle, brief showers, thunderstorms or monsoon — each needs different gear. |
Live hourly values come from Open-Meteo and refresh through the day. Monthly rainfall figures are climate normals, so they describe a typical year rather than a forecast.
Stellenbosch records rain on roughly 75 days a year — about a 21% chance on any given day — totalling around 785mm.
June, with about 92mm over 14 rain days. That is 12% of the entire year's rainfall in a single month.
February is the driest month at 12mm across roughly 2 days. November through March offers dry, warm harvest-season weather.
Stellenbosch has a classic wine-country climate — wet winters feed the vines, dry summers ripen the grapes. Wine tasting is the perfect rainy-day activity.
No. Probability is the chance that at least 0.2mm of rain falls at your location at some point in the period. Check the expected millimetres alongside it: 40% with 0.4mm is a passing shower, 40% with 12mm is a soaking.