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 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
Rivonia's progression into April involves a gentle drop in the average high-temperature, from a moderately hot 26.1°C (79°F) in March to an agreeable 22.8°C (73°F). In the month of April, the average temperature dips to a fresh 11.9°C (53.4°F) during the night.Humidity
In Rivonia, the average relative humidity in April is 58%.Rainfall
In Rivonia, in April, it is raining for 7.8 days, with typically 20mm (0.79") of accumulated precipitation. Throughout the year, there are 77.6 rainfall days, and 262mm (10.31") of precipitation is accumulated.Daylight
In Rivonia, the average length of the day in April is 11h and 28min.On the first day of the month, sunrise is at 06:17 and sunset at 18:05. On the last day of April, sunrise is at 06:31 and sunset at 17:38 SAST.
Sunshine
The average sunshine in April is 7.7h.UV index
In April, the average daily maximum UV index is 5. A UV Index estimate of 3 to 5 represents a moderate health risk from exposure to the Sun's UV radiation for average individuals.Note: A maximum UV index of 5 in April translates into the following recommendations:
Adopt protective measures - It is advised to guard against sun damage. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. Stay sun-safe with clothing that is both closely woven and worn loosely.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are April temperatures?
What is the average humidity in April?
How many days does it rain in April?
What is the average length of the day in April?
When is the sunrise / sunset in April?
How many hours of sunshine does Rivonia have in April?
What is the UV index reading in April?
Average temperature in April
Rivonia, South Africa
- Average high temperature in April: 22.8°C
The warmest month (with the highest average high temperature) is December (27.5°C).
The month with the lowest average high temperature is July (17.9°C).
- Average low temperature in April: 11.9°C
The month with the highest average low temperature is January (16.6°C).
The coldest month (with the lowest average low temperature) is July (6.1°C).
Average pressure in April
Rivonia, South Africa
- Average pressure in April: 1018.9mbar
The month with the highest atmospheric pressure is July (1024.6mbar).
The month with the lowest atmospheric pressure is January (1013.1mbar).
Average wind speed in April
Rivonia, South Africa
- Average wind speed in April: 8.3km/h
The windiest month (with the highest average wind speed) is November (11.6km/h).
The calmest month (with the lowest average wind speed) is May (7.8km/h).
Average humidity in April
Rivonia, South Africa
- Average humidity in April: 58%
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is September (34%).
Average rainfall in April
Rivonia, South Africa
- Average rainfall in April: 20mm
The wettest month (with the highest rainfall) is January (57mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in April
Rivonia, South Africa
- Average rainfall days in April: 7.8 days
The month with the highest number of rainy days is January (13.2 days).
The month with the least rainy days is July (1.4 days).
Average daylight in April /
Average sunshine in April
Rivonia, South Africa
- Average daylight in April: 11h and 3min
The month with the longest days is December (Average daylight: 13h and 42min).
The month with the shortest days is June (Average daylight: 10h and 30min).
- Average sunshine in April: 7h and 4min
The month with the most sunshine is October (Average sunshine: 11h and 48min).
The month with the least sunshine is August (Average sunshine: 7h and 24min).
Average sunshine days in April
Rivonia, South Africa
- Average sunshine days in April: 22.3 days
The month with the most sunshine days is July (28.9 days).
The month with the least sunshine days is January (16.3 days).
Average UV index in April
Rivonia, South Africa
- Average UV index in April: 5
The months with the highest UV index are January, February, October and November (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in April
Rivonia, South Africa
- Average cloud cover in April: 19
The month with the most cloud cover is January (Cloud cover 26).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in April
Rivonia, South Africa
- Average visibility in April: 10km
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (10km).
The month with the lowest visibility is January (9km).
