Annual mean 17°C · wettest around June · prevailing wind SW
Warmest
27.5 °C
Coldest
16.3 °C
Wettest
64%
Windiest
4.5 m/s
Prevailing
SW
3.8 m/s average
When this place is good five ratings · thirty-six ten-day sections · click a cell to read it
never good
Jan
Feb
Mar
Apr
May
Jun
Jul
Aug
Sep
Oct
Nov
Dec
Every reading
bars actual · line feels-like, °Cchance of rain, %wind speed, m/ssky covered, %
The average temperature in Stellenbosch over the whole year is 17°C. February is the hottest month, with highs of about 27°C; July is the coldest, with lows of about 9°C. Stellenbosch has no sharply defined rainy season: the chance of rain on a given day runs from 34% in February, the driest month, to 51% in June, the wettest. Winds in Stellenbosch are highest in December, averaging 3.6 m/s (13 km/h), and lightest in May, at 2.3 m/s (8 km/h). The prevailing wind is from the SW. The clearest skies in Stellenbosch come in February, when the sky is typically 40% covered; June is the cloudiest month, at 51%.
Month by month Stellenbosch climate by month: average temperatures year round · click a month to read it
Month
High
Low
Feels like
Chance of rain
Cloud
Wind
Being outside
Sun
Walking
January
27°C
19°C
25°C
34%
40%
3.5 m/s
59
42
33
February
27°C
19°C
25°C
34%
40%
3.3 m/s
58
44
32
March
25°C
17°C
23°C
38%
47%
3.0 m/s
69
32
46
April
23°C
14°C
21°C
37%
45%
2.7 m/s
72
23
58
May
20°C
12°C
18°C
40%
48%
2.3 m/s
71
10
71
June
18°C
11°C
15°C
51%
51%
2.6 m/s
50
3
76
July
17°C
9°C
14°C
51%
48%
2.6 m/s
41
2
76
August
17°C
9°C
14°C
45%
48%
2.7 m/s
42
2
76
September
19°C
12°C
16°C
43%
50%
2.9 m/s
51
6
74
October
22°C
14°C
19°C
35%
46%
3.1 m/s
65
18
63
November
23°C
16°C
21°C
43%
44%
3.5 m/s
71
21
59
December
25°C
17°C
23°C
39%
41%
3.6 m/s
70
32
47
High and low are the warmest and coolest of four readings a day — midnight, 6am, noon and 6pm — so a true overnight low can sit a degree or two under them. Chance of rain, cloud and wind are the day’s average; feels-like and the three ratings (each out of 100: Good from 55, Ideal from 80) are read at midday.
Seasons, and the year in short Stellenbosch weather by season
Year round, Stellenbosch has days of about 17°C at their warmest in July, its coolest month, and 27°C in February, its warmest; the coolest hours of the day run from 9°C to 19°C through the year, and the average temperature over the year is 17°C around the clock. Rain is most likely around June and least likely around February. Every figure here is a decade of observations blended into one representative year, so it reads as what this date is usually like, not a forecast for one particular day.
Stellenbosch weather in winterJune to August
High 17°CLow 10°CRain 49%
Winter in Stellenbosch has typical daily highs of about 17°C and lows of about 10°C, with a 49% chance of rain on a given day.
Stellenbosch weather in springSeptember to November
High 21°CLow 14°CRain 40%
Spring in Stellenbosch has typical daily highs of about 21°C and lows of about 14°C, with a 40% chance of rain on a given day.
Stellenbosch weather in summerDecember to February
High 26°CLow 18°CRain 35%
Summer in Stellenbosch has typical daily highs of about 26°C and lows of about 18°C, with a 35% chance of rain on a given day.
Stellenbosch weather in autumnMarch to May
High 23°CLow 14°CRain 38%
Autumn in Stellenbosch has typical daily highs of about 23°C and lows of about 14°C, with a 38% chance of rain on a given day.
When is the rainy season in Stellenbosch?
Stellenbosch has no sharply defined rainy season: the chance of rain on a given day runs from 34% in February, the driest month, to 51% in June, the wettest.
What time of year is Stellenbosch windiest?
Winds in Stellenbosch are highest in December, averaging 3.6 m/s (13 km/h), and lightest in May, at 2.3 m/s (8 km/h). The prevailing wind is from the SW.
What is the average temperature in Stellenbosch year round?
The average temperature in Stellenbosch over the whole year is 17°C. February is the hottest month, with highs of about 27°C; July is the coldest, with lows of about 9°C.