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.

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For a detailed overview over the year and the best time to visit South Africa, check out our Plettenberg Bay's climate page.

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).

Historical weather 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.

Historical weather Temperatures Precipitation

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‹ January February March April May June July August September October November December ›

Plettenberg Bay historical weather extremes in September

According to our 19 years of weather records for Plettenberg Bay, the following extremes were recorded between 2006 and 2025.

• 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).

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.

Cycling

10/10

Walking

10/10

Camping

8/10

Outdoor sports

10/10

Select a Month

Check the conditions for any month of the year.

• January
• February
• March
• April

• May
• June
• July
• August

• September
• October
• November
• December

For a detailed overview over the year and the best time to visit South Africa, check out our Plettenberg Bay's climate page.

More climate data for Plettenberg Bay

Temperature Rainfall Sunshine

See the full Plettenberg Bay climate overview or explore weather in South Africa.