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
Weather in May
Temperature
As May takes hold, the average high-temperature is a still agreeable 20.8°C (69.4°F), nearly mirroring that of the previous month. Grootvlei reports a significant contrast between daytime and nighttime temperatures, with an average low of 8.7°C (47.7°F) in May.Humidity
In May, the average relative humidity in Grootvlei is 49%.Rainfall
In May, in Grootvlei, the rain falls for 3.3 days. Throughout May, 5mm (0.2") of precipitation is accumulated. In Grootvlei, during the entire year, the rain falls for 120.9 days and collects up to 449mm (17.68") of precipitation.Daylight
The average length of the day in May is 10h and 48min.On the first day of May, sunrise is at 06:30 and sunset at 17:35. On the last day of the month, sunrise is at 06:46 and sunset at 17:20 SAST.
Sunshine
In Grootvlei, the average sunshine in May is 7.6h.UV index
May through July, with an average maximum UV index of 4, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV radiation for the average person.Note: In May, a daily maximum UV index of 4 leads to the following instructions:
Take care. Persons with lighter skin might suffer burns in less than 30 minutes. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in May in Grootvlei?
What is the average humidity in May in Grootvlei?
How much does it rain in Grootvlei in May?
What is the average length of the day in May in Grootvlei?
When is the sunrise / sunset in May in Grootvlei?
How long on average sun shines in May in Grootvlei?
When is the lowest UV index in Grootvlei?
What is the UV index reading in May in Grootvlei?
Average temperature in May
Grootvlei, South Africa
- Average high temperature in May: 20.8°C
The warmest month (with the highest average high temperature) is January (26.6°C).
The month with the lowest average high temperature is July (17.3°C).
- Average low temperature in May: 8.7°C
The month with the highest average low temperature is December (15.5°C).
The coldest month (with the lowest average low temperature) is July (5.2°C).
Average pressure in May
Grootvlei, South Africa
- Average pressure in May: 1021.3mbar
The month with the highest atmospheric pressure is July (1024.8mbar).
The month with the lowest atmospheric pressure is January (1013.6mbar).
Average wind speed in May
Grootvlei, South Africa
- Average wind speed in May: 8.3km/h
The windiest months (with the highest average wind speed) are September and October (12.1km/h).
The calmest months (with the lowest average wind speed) are March and May (8.3km/h).
Average humidity in May
Grootvlei, South Africa
- Average humidity in May: 49%
The months with the highest relative humidity are January and February (68%).
The month with the lowest relative humidity is September (35%).
Average rainfall in May
Grootvlei, South Africa
- Average rainfall in May: 5mm
The wettest month (with the highest rainfall) is December (93mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in May
Grootvlei, South Africa
- Average rainfall days in May: 3.3 days
The month with the highest number of rainy days is January (20.4 days).
The month with the least rainy days is June (1.5 days).
Average daylight in May /
Average sunshine in May
Grootvlei, South Africa
- Average daylight in May: 10h and 5min
The month with the longest days is December (Average daylight: 13h and 48min).
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
Grootvlei, South Africa
- Average sunshine days in May: 26.8 days
The month with the most sunshine days is July (29.1 days).
The month with the least sunshine days is January (7.8 days).
Average UV index in May
Grootvlei, South Africa
- Average UV index in May: 4
The months with the highest UV index are January, 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
Grootvlei, South Africa
- Average cloud cover in May: 9
The month with the most cloud cover is January (Cloud cover 30).
The months with the least cloud cover are July and August (Cloud cover 6).
Average visibility in May
Grootvlei, South Africa
- Average visibility in May: 10km
The months with the highest visibility are April, May, June, July, August, September, October and November (10km).
The months with the lowest visibility are January, February, March and December (9km).
Grootvlei, South Africa
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