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Plettenberg Bay Weather in September
September in Plettenberg Bay brings pleasant temperatures, with daytime highs of 19°C (66°F) and nights around 13°C (55°F). Expect around 56 mm (2.2 in) of rainfall during the month.
Rainfall in Plettenberg Bay in September
Historically, the month has about 10 days of rain, averaging 56 mm (2.2 in) in total. A fairly balanced picture this month, some wet days but nothing too extreme in terms of intensity.
Temperature in Plettenberg Bay in September
Daytime temperatures in Plettenberg Bay reach 19°C (66°F) in September, dropping to 13°C (55°F) at night. A light jacket or extra layer can be useful, especially outside the warmest hours 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 Plettenberg Bay in September
Expect a lot of sunshine this month, with about 255 hours of sun. These sunny conditions add to the overall experience.September in Plettenberg Bay can still be great, but if you prefer pleasant temperatures along with dry and sunny conditions, our weather planner can help you explore other options in the world.
Plettenberg Bay Temperature in September
Min Temperature
13°C (55°F)
Max Temperature
19°C (66°F)
Chance of Rain
33%
Precipitation
56 mm (2.2 in)
Rainy days
10 days
Sunshine
255 hours *
Percentage Sunshine
*
* Data from: Knysna, South Africa (29 KM, 18 Miles).
Plettenberg Bay Weather by Month
Pick a month to see the average temperature, rainfall and sunshine in Plettenberg Bay - and find the best time to visit.
Historical weather records for Plettenberg Bay in September
Browse day-by-day weather records for Plettenberg Bay spanning 29 years. Select any month and year to see actual temperatures, rainfall, and conditions recorded on each day.
Plettenberg Bay historical weather extremes in September
According to our 20 years of weather records for Plettenberg Bay, the following extremes were recorded between 2006 and 2026.
- The hottest September day on record in Plettenberg Bay reached 33°C (91°F) (September 16, 2012).
- The coldest September day was on September 7, 2018, with a maximum of 11°C (52°F).
- The lowest overnight temperature recorded in September was 4°C (39°F) (September 10, 2024).
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 →
perfect weather
pleasant
tolerable
unpleasant
poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C (68°F) and 29°C (84°F) and not too much precipitation (less than 90 mm (3.5 in) a month).
What to Wear in Plettenberg Bay in September
Pleasant temperatures in September mean you can pack light but flexibel pieces. Think cotton t-shirts, comfortable walking shorts, and one warmer layer for evenings. A light sweater or denim jacket works well. Rain gear is recommended, you can expect wet weather on multiple days. Don't forget sun protection, sunglasses, sunscreen, and a hat. These are all good ideas with this much sunshine.
What To Do in Plettenberg Bay in September
We rated the following activities from 1 (least suitable) to 10 (best) to do.
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Cycling10/10 -
Walking10/10 -
Camping8/10 -
Outdoor sports10/10
Plettenberg Bay 3-Day Forecast
More climate data for Plettenberg Bay
See the full Plettenberg Bay climate overview or explore weather in South Africa.
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