St James Weather in September
September in St James averages 17°C (63°F) during the day and 13°C (55°F) at night. Around 56 mm (2.2 in) of rainfall is typical for this time of year.
Rainfall in St James in September
Past climate data indicates that roughly 11 days will see rain, totalling around 56 mm (2.2 in) for the month. Expect a fairly normal spread of rainfall this month, with no particular pattern of very heavy or very persistent showers.
Temperature in St James in September
In September, expect moderate temperatures in St James, with highs of 17°C (63°F) and lows of 13°C (55°F) at night. Conditions are often most pleasant around the middle of the day. Nights cool down to 13°C (55°F), so a light jacket or extra layer is useful once the sun goes down. On the plus side, the cooler nights make for comfortable sleeping conditions.
Sunshine in St James in September
Expect sunny days throughout the month, with an estimated 225 hours of sunshine. This makes it a pleasant time to visit St James.
Wind Speed in St James in September
Wind speeds average 5 m/s (10 knots) during September. At this speed, gentle to moderate breezes make small trees sway and the wind creates whitecaps on water bodies. Daily variations range from moderate winds to stronger breezes, creating excellent conditions for sailing, kite flying and wind sports.
Average water temperature in September
The water is 15°C (59°F) this month — cool enough to feel refreshing on a warm day, but cold enough that most people won't stay in for long without a wetsuit.Our weather planner can help you find worldwide destinations with pleasant weather during this period. January, February, March, April, November and December typically offer the best weather for St James.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Africa, check out our St James's climate page.
St James Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
17°C (63°F)
Water Temperature
15°C (59°F) *
Chance of Rain
37%
Precipitation
56 mm (2.2 in)
Rainy days
11 days
Humidity
77% *
Windspeed
5 m/s (10 knots) *
Sunshine
225 hours *
Percentage Sunshine
*
Best Places in South Africa in September
Find out more about the weather in South Africa and which places have the best travel conditions in this month. See all of South Africa in September →
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What to Wear in St James in September
Comfortable temperatures call for an easy wardrobe in September. Pack summer basics like t-shirts and shorts, but include a light jacket for cooler moments. A pair of comfortable walking shoes is essential. Wet weather is likely, so pack waterproof gear for multiple rainy days. With water temperatures around 15°C (59°F), the water is quite cold for swimming. You can skip the swimwear unless you're particularly tough. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in St James in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit South Africa, check out our St James's climate page.
Temperature Rainfall Sunshine Humidity Wind Speed Water Temp
See the full St James climate overview or explore weather in South Africa.
