April weather forecast
Knysna, South Africa

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Weather in April

April marks the beginning of the transition from warmer to slightly cooler temperatures. Despite the downwards shift, the weather conditions remain relatively consistent from March, offering an enjoyable outdoor climate with slightly less rainfall of 60mm (2.36"). A pleasantly mild climate provides an inviting backdrop for exploring the natural beauty of Knysna inland. With the sea temperature beginning to cool, water-based activities transition to focus more on land, making April an excellent time for hiking and wildlife viewing. Nature's rhythm syncs well with the climate during this period, rendering a beautiful cycle of life across the region.

Temperature

April in Knysna experiences an average high-temperature of a still moderately hot 24°C (75.2°F), barely different from March's 25°C (77°F). A stark contrast in day to night temperatures can be seen in April, with an average low-temperature of 12°C (53.6°F).

Rainfall

In Knysna, in April, it is raining for 12 days, with typically 60mm (2.36") of accumulated precipitation. Throughout the year, there are 145 rainfall days, and 719mm (28.31") of precipitation is accumulated.

Sea temperature

In April, the average sea temperature in Knysna is 18.2°C (64.8°F).
Note: Swimming is not a pleasant activity for most individuals in 18.2°C (64.8°F). Breathing becomes increasingly challenging to control as the water temperature dips from 21°C (69.8°F) to 15°C (59°F).

Daylight

The average length of the day in April is 11h and 14min.
On the first day of April, sunrise is at 06:40 and sunset at 18:22. On the last day of the month, sunrise is at 07:02 and sunset at 17:47 SAST.

Sunshine

In April, the average sunshine is 8h.

UV index

The average daily maximum UV index in April in Knysna is 6. A UV Index estimate of 6 to 7 represents a high health hazard from exposure to the Sun's UV rays for the average person.
Note: In April, a daily maximum UV index of 6 leads to the following instructions:
Act on precautions and pay attention to sun safety recommendations. Avoidance of sunburn is obligatory. Stay out of direct sunlight between 10 a.m. and 4 p.m., when UV radiation is most intense, and remember that not all shade structures provide complete protection. A wide-brimmed hat provides unparalleled sun protection for sensitive areas like the eyes, ears, and neck.

Frequently asked questions

What is the usual temperature for Knysna in April?

In Knysna, in April, the average high-temperature is 24°C (75.2°F), and the average low-temperature is 12°C (53.6°F).

How much does it rain in Knysna in April?

In Knysna, South Africa, during April, the rain falls for 12 days and regularly aggregates up to 60mm (2.36") of precipitation.

What is the sea water temperature in April in Knysna?

In April, the average sea temperature is 18.2°C (64.8°F). For most, swimming in 18.2°C (64.8°F) is not an enjoyable activity. Furthermore, controlling your breathing becomes progressively more difficult as the water temperature decreases from 21°C (69.8°F) to 15°C (59°F).

How many hours of daylight does Knysna have in April?

The average day length in April in Knysna is 11h and 14min.

What time are sunrise and sunset in April in Knysna?

On the first day of April, sunrise is at 06:40 and sunset at 18:22. On the last day of the month, sunrise is at 07:02 and sunset at 17:47 SAST.

How many hours of sunshine does Knysna have in April?

In Knysna, South Africa, the average sunshine duration in April is 8h.

What is the UV index reading in April in Knysna?

In Knysna, the average daily maximum UV index in April is 6. A UV Index of 6 to 7 symbolizes a high hazard to health from exposure to Sun's UV rays.
Average rainfall days
Average daylight
Average sunshine
Average UV index

Average temperature in April
Knysna, South Africa

Average temperature in April - Knysna, South Africa
  • Average high temperature in April: 24°C

The warmest months (with the highest average high temperature) are January and February (26°C).
The months with the lowest average high temperature are June, July, August and September (21°C).

  • Average low temperature in April: 12°C

The month with the highest average low temperature is February (16°C).
The coldest month (with the lowest average low temperature) is July (7°C).

Average rainfall in April
Knysna, South Africa

Average rainfall in April - Knysna, South Africa
  • Average rainfall in April: 60.2mm

The wettest month (with the highest rainfall) is November (93.7mm).
The driest month (with the least rainfall) is June (31.7mm).

Average rainfall days in April
Knysna, South Africa

Average rainfall days in April - Knysna, South Africa
  • Average rainfall days in April: 12 days

The months with the highest number of rainy days are January, March and October (14 days).
The month with the least rainy days is May (9 days).

Average sea temperature in April
Knysna, South Africa

Average sea temperature in April - Knysna, South Africa
  • Average sea temperature in April: 18.2°C

The best month for swimming (with the highest average sea temperature) is January (20.4°C).
The coldest months (with the lowest average sea temperature) are July and August (16.8°C).

Average daylight in April /
Average sunshine in April
Knysna, South Africa

Average daylight in April / Average sunshine in April - Knysna, South Africa
  • Average daylight in April: 11h and 1min

The month with the longest days is December (Average daylight: 14h and 24min).
The month with the shortest days is June (Average daylight: 9h and 54min).

  • Average sunshine in April: 8h

The months with the most sunshine are January and February (Average sunshine: 10h).
The months with the least sunshine are May and June (Average sunshine: 7h).

Average UV index in April
Knysna, South Africa

Average UV index in April - Knysna, South Africa
  • Average UV index in April: 6

The months with the highest UV index are January and December (UV index 12).
The months with the lowest UV index are May, June and July (UV index 3).

Knysna, South Africa

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