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
The onset of May brings an average high-temperature of a pleasant 22°C (71.6°F), nearly matching the April temperature. Nighttime temperature in Irene dips to a mean of 10.5°C (50.9°F) during May.Humidity
In May, the average relative humidity is 48%.Rainfall
In Irene, during May, the rain falls for 3.1 days and regularly aggregates up to 4mm (0.16") of precipitation. Throughout the year, in Irene, there are 125.6 rainfall days, and 446mm (17.56") of precipitation is accumulated.Daylight
In Irene, the average length of the day in May is 10h and 52min.On the first day of the month, sunrise is at 06:30 and sunset at 17:37. On the last day of May, in Irene, South Africa, sunrise is at 06:45 and sunset at 17:23 SAST.
Sunshine
In Irene, South Africa, the average sunshine in May is 7.7h.UV index
The months with the lowest UV index are May through July, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a moderate threat to health from unsafe exposure to UV radiation for average individuals.Note: In May, the maximum UV index of 4 suggests these recommendations:
Ensure safety - Imperative it is to shield skin and eyes from damage. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun.
Frequently asked questions
What is the temperature in May in Irene?
What is the average humidity in May in Irene?
How much does it rain in Irene in May?
What is the average length of the day in May in Irene?
When is the sunrise / sunset in May in Irene?
How many hours of sunshine does Irene have in May?
When is the lowest UV index in Irene?
What is the UV index intensity in May in Irene?
Average temperature in May
Irene, South Africa
- Average high temperature in May: 22°C
The warmest month (with the highest average high temperature) is January (28.1°C).
The month with the lowest average high temperature is July (18.5°C).
- Average low temperature in May: 10.5°C
The months with the highest average low temperature are January and December (17.1°C).
The coldest month (with the lowest average low temperature) is July (6.8°C).
Average pressure in May
Irene, South Africa
- Average pressure in May: 1021mbar
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
Irene, South Africa
- Average wind speed in May: 7.5km/h
The windiest months (with the highest average wind speed) are October and November (11.2km/h).
The calmest month (with the lowest average wind speed) is May (7.5km/h).
Average humidity in May
Irene, South Africa
- Average humidity in May: 48%
The months with the highest relative humidity are January and February (63%).
The month with the lowest relative humidity is September (35%).
Average rainfall in May
Irene, South Africa
- Average rainfall in May: 4mm
The wettest month (with the highest rainfall) is January (97mm).
The driest month (with the least rainfall) is July (1mm).
Average rainfall days in May
Irene, South Africa
- Average rainfall days in May: 3.1 days
The month with the highest number of rainy days is January (21.8 days).
The month with the least rainy days is July (1.2 days).
Average daylight in May /
Average sunshine in May
Irene, 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 30min).
Average sunshine days in May
Irene, South Africa
- Average sunshine days in May: 26.5 days
The month with the most sunshine days is August (29.2 days).
The month with the least sunshine days is December (6.1 days).
Average UV index in May
Irene, South Africa
- Average UV index in May: 4
The months with the highest UV index are January, February, March, October, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 4).
Average cloud cover in May
Irene, South Africa
- Average cloud cover in May: 8
The month with the most cloud cover is January (Cloud cover 27).
The month with the least cloud cover is August (Cloud cover 5).
Average visibility in May
Irene, 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).
Irene, South Africa
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