Contents
- Weather in May
- Frequently asked questions
- Average temperature in May
- Average pressure in May
- Average wind speed in May
- Average humidity in May
- Average rainfall in May
- Average rainfall days in May
- Average daylight in May
- Average sunshine in May
- Average sunshine days in May
- Average UV index in May
- Average cloud cover in May
- Average visibility in May
May
Weather in May
Temperature
Rivonia notes an average high-temperature of a still agreeable 21.2°C (70.2°F) in May, displaying minor variation from April. Rivonia records an average nighttime low-temperature of 9.6°C (49.3°F) throughout May.Humidity
In Rivonia, the average relative humidity in May is 49%.Rainfall
In Rivonia, in May, it is raining for 2.9 days, with typically 4mm (0.16") of accumulated precipitation. In Rivonia, during the entire year, the rain falls for 77.6 days and collects up to 262mm (10.31") of precipitation.Daylight
In Rivonia, the average length of the day in May is 10h and 51min.On the first day of the month, sunrise is at 06:31 and sunset at 17:38. On the last day of May, sunrise is at 06:46 and sunset at 17:24 SAST.
Sunshine
In May, the average sunshine is 7.6h.UV index
The months with the lowest UV index are May through July, with an average maximum UV index of 4. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: In May, the average maximum UV index of 4 translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. It's recommended to limit sun exposure when its radiation is at its peak during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May?
What is the average humidity in May?
How much does it rain in May?
What is the average length of the day in May in Rivonia?
When are sunrise and sunset in May?
How many hours of sunshine does Rivonia have in May?
What are the months with the lowest UV index?
How high is the UV index in May?
Average temperature in May
Rivonia, South Africa
- Average high temperature in May: 21.2°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 May: 9.6°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 May
Rivonia, South Africa
- Average pressure in May: 1021.1mbar
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 May
Rivonia, South Africa
- Average wind speed in May: 7.8km/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 May
Rivonia, South Africa
- Average humidity in May: 49%
The month with the highest relative humidity is February (64%).
The month with the lowest relative humidity is September (34%).
Average rainfall in May
Rivonia, South Africa
- Average rainfall in May: 4mm
The wettest month (with the highest rainfall) is January (57mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in May
Rivonia, South Africa
- Average rainfall days in May: 2.9 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 May /
Average sunshine in May
Rivonia, South Africa
- Average daylight in May: 10h and 5min
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 May: 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 May
Rivonia, South Africa
- Average sunshine days in May: 27.3 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 May
Rivonia, South Africa
- Average UV index in May: 4
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 May
Rivonia, South Africa
- Average cloud cover in May: 9
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 May
Rivonia, South Africa
- Average visibility in May: 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).
