Contents
- Weather in April
- Frequently asked questions
- Average temperature in April
- Average pressure in April
- Average wind speed in April
- Average humidity in April
- Average rainfall in April
- Average rainfall days in April
- Average snowfall in April
- Average snowfall days in April
- Average daylight in April
- Average sunshine in April
- Average sunshine days in April
- Average UV index in April
- Average cloud cover in April
- Average visibility in April
April
Weather in April
Temperature
April sees a slight reduction in average high-temperature, with a shift from a warm 25.8°C (78.4°F) in March to a pleasant 21.6°C (70.9°F). Nighttime temperatures in April average to a fresh 11.8°C (53.2°F).Humidity
The average relative humidity in April is 55%.Rainfall
February, April, October and December are months with the least rain when the rain falls for 7.5 days and typically aggregates up to 9mm (0.35") of rain.Snowfall
In Swellendam, snow does not fall in January through June, September through December.Daylight
The average length of the day in April in Swellendam is 11h and 14min.On the first day of April in Swellendam, sunrise is at 06:50 and sunset at 18:33. On the last day of the month, sunrise is at 07:12 and sunset at 17:58 SAST.
Sunshine
In Swellendam, the average sunshine in April is 9.2h.UV index
In April, the average daily maximum UV index in Swellendam is 5. A UV Index of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for average individuals.Note: The UV index of 5 during April leads to these advisories:
Guard yourself - Precautionary measures against sun damage are advocated. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the average April temperature in Swellendam?
What is the average humidity in April in Swellendam?
What is the driest month in Swellendam?
How many days does it rain in April in Swellendam?
When it does not snow in Swellendam?
What is the average length of the day in April in Swellendam?
When is the sunrise / sunset in April in Swellendam?
How long on average sun shines in April in Swellendam?
How high is the UV index in April in Swellendam?
Average temperature in April
Swellendam, South Africa
- Average high temperature in April: 21.6°C
The warmest month (with the highest average high temperature) is January (28.3°C).
The month with the lowest average high temperature is June (14°C).
- Average low temperature in April: 11.8°C
The month with the highest average low temperature is February (16.1°C).
The coldest month (with the lowest average low temperature) is July (5.6°C).
Average pressure in April
Swellendam, South Africa
- Average pressure in April: 1017.6mbar
The month with the highest atmospheric pressure is July (1022.4mbar).
The month with the lowest atmospheric pressure is January (1012.9mbar).
Average wind speed in April
Swellendam, South Africa
- Average wind speed in April: 10.8km/h
The windiest month (with the highest average wind speed) is November (13.1km/h).
The calmest month (with the lowest average wind speed) is May (10.7km/h).
Average humidity in April
Swellendam, South Africa
- Average humidity in April: 55%
The month with the highest relative humidity is June (64%).
The months with the lowest relative humidity are February and November (53%).
Average rainfall in April
Swellendam, South Africa
- Average rainfall in April: 9mm
The wettest month (with the highest rainfall) is June (22mm).
The driest months (with the least rainfall) are February, April, October and December (9mm).
Average rainfall days in April
Swellendam, South Africa
- Average rainfall days in April: 7.5 days
The month with the highest number of rainy days is April (7.5 days).
The month with the least rainy days is November (5 days).
Average snowfall in April
Swellendam, South Africa
- Average snowfall in April: 0mm
The month with the highest snowfall is August (3mm).
The months with the least snowfall are January, February, March, April, May, June, September, October, November and December (0mm).
Average snowfall days in April
Swellendam, South Africa
- Average snowfall days in April: 0 days
The month with the highest number of snowfall days is August (0.3 days).
The months with the least snowfall days are January, February, March, April, May, September, October, November and December (0 days).
Average daylight in April /
Average sunshine in April
Swellendam, 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: 9h and 1min
The month with the most sunshine is December (Average sunshine: 11h and 42min).
The month with the least sunshine is June (Average sunshine: 6h and 36min).
Average sunshine days in April
Swellendam, South Africa
- Average sunshine days in April: 20.3 days
The month with the most sunshine days is May (24.1 days).
The month with the least sunshine days is February (19.8 days).
Average UV index in April
Swellendam, South Africa
- Average UV index in April: 5
The months with the highest UV index are January, February and December (UV index 6).
The month with the lowest UV index is June (UV index 3).
Average cloud cover in April
Swellendam, South Africa
- Average cloud cover in April: 20
The month with the most cloud cover is June (Cloud cover 27).
The month with the least cloud cover is February (Cloud cover 14).
Average visibility in April
Swellendam, South Africa
- Average visibility in April: 10km
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (10km).
