Weather in Knysna, South Africa in September

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Visiting Knysna, South Africa in September

September has average maximum temperatures of 19°C (66°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright. September has total rainfall of 0.2cm (0.1inches) making it predominantly dry with occasional light showers on very few days. There are just 9.4 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. It is not a good time for sunbathing in Knysna. Sea temperatures are a chilly 17°C (63°F). September is a little too cold to enjoy swimming in Knysna for prolonged periods of time.

Consider visiting Knysna in the months of January, February, March, December, for the best beach weather.

Also consider one of our other suggestions for September.

Can you sunbathe in Knysna in September?

No, September is not a good time for sunbathing in Knysna.

September has average maximum temperatures of 19°C (66°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright. September has total rainfall of 0.2cm (0.1inches) making it predominantly dry with occasional light showers on very few days. There are just 9.4 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days.

More about September temperature and sunshine.

Can you swim in Knysna in September?

Probably not, September is a little too cold to enjoy swimming in Knysna for prolonged periods of time with the sea water at 17°C (63°F).

More about September sea temperatures.

Is September a good time to holiday in Knysna?

Yes, September is a good time for a holiday in Knysna.

September has average maximum temperatures of 19°C (66°F) which is not that warm but sunbathing may be possible on some clear days. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright. September has total rainfall of 0.2cm (0.1inches) making it predominantly dry with occasional light showers on very few days. There are just 9.4 days with some rainfall so you can still enjoy the beach on the majority of rain free clear days. It is not a good time for sunbathing in Knysna. Sea temperatures are a chilly 17°C (63°F). September is a little too cold to enjoy swimming in Knysna for prolonged periods of time.

More about the September temperatures and sunshine.

Is Knysna warm in September?

Yes, Knysna is not that warm but sunbathing may be possible on some clear days in September.

The average maximum temperature in Knysna in September is 19°C (66°F). The average maximum temperature is 19°C (65°) in the previous month and 20°C (68°F) in the next month.

The average temperature in Knysna in September is 14°C (57°F). The average temperature is 13°C (56°F) in the previous month and 16°C (60°F) in the next month.

More info about the September temperatures and sunshine.

How sunny is Knysna in September?

The average day light hours per day in Knysna in September are 11.9. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright.

More about September sunshine.

Temperature in Knysna in September

The average maximum temperature in Knysna in September is 19°C (66°F). The average maximum temperature is 19°C (65°F) in the previous month and 20°C (68°F) in the next month.

The average temperature in Knysna in September is 14°C (57°F). The average temperature is 13°C (56°F) in the previous month and 16°C (60°F) in the next month.

The average minimum temperature in Knysna in September is 9°C (48°F). The minimum temperature is 8°C (47°F) in the previous month and 11°C (52°F) in the next month.

Sunshine in Knysna in September

During September the average day light hours are 11.9 per day in Knysna. The sunshine percentage is 63% making it sunny but overcast at times. The hours of sunshine per day are 7.5hrs making the days quite long and bright.

The ultraviolet index in Knysna in September is typically 7.5 during September. An ultraviolet index reading of 8 to 10 indicates a very high risk of harm from unprotected sun exposure. Unprotected skin risks burning in less than 15 minutes. Take extra precautions because unprotected skin and eyes will be damaged and can burn quickly. Tanning will be safest before 10am and after 4pm but only with a good application of sun screen. For those with sensitive skin stay in the shade and wear protective clothing, a wide-brimmed hat, and UV-blocking sunglasses. Generously apply broad spectrum SPF 30+ sunscreen every 2 hours, even on cloudy days. Watch out for relections from water that may increase ultraviolet exposure.

Sea Temperature in Knysna in September

The average sea water temperature in Knysna in September is 17.1°C (62.8°F) which is cool for swimming, shorty wetsuit may help you extend your time in the water.

Rainfall in Knysna in September

The average total rainfall in Knysna in September is 0.2cm (0.1inches) and on average there are 9.4 rainy days in September making it a quite rainy time to visit the beach.

Humidity in Knysna in September

The maximum dew point (an indicator of humidity) in Knysna in September is 12°C (53°F) which is very comfortable. The dew point is 10°C (51°F) in the previous month and 14°C (14°F) in the next month.

The average maximum relative humidity in Knysna in September is typically 93.8%. The maximum relative humidity is 92.2% in the previous month and 95.4% in the next month.

The average relative humidity in Knysna in September is typically 74.8%. The average relative humidity is 71.4% in the previous month and 78.6% in the next month.

Wind Speed in Knysna in September

The average maximum wind speed in Knysna in September is typically 24KM/H (15MPH). The average maximum wind speed is 24KM/H (15MPH) in the previous month and 25KM/H (16MPH) in the next month.

The average wind speed in Knysna in September is typically 11KM/H (7MPH). The average wind speed is 12KM/H (7MPH) in the previous month and 12KM/H (7MPH) in the next month.

The average wind direction in Knysna in September is from the West-Northwest.

Monthly Averages

Suggested Beaches in September

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Need Inspiration?

Beaches recommended for you today, this weekend, in the next 2 weeks or in any month of the year.