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 snowfall in May
- Average snowfall 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
Swellendam's weather in May involves a mild decrease in the average high-temperature, moving down slightly from April's pleasant 21.6°C (70.9°F) to a refreshing 18.3°C (64.9°F). May is noted for a mean low-temperature of 9.4°C (48.9°F).Humidity
In May, the average relative humidity is 58%.Rainfall
In Swellendam, during May, the rain falls for 5.1 days and regularly aggregates up to 10mm (0.39") of precipitation. Throughout the year, there are 74.6 rainfall days, and 147mm (5.79") of precipitation is accumulated.Snowfall
In Swellendam, snow does not fall in January through June, September through December.Daylight
The average length of the day in May in Swellendam is 10h and 22min.On the first day of the month, sunrise is at 07:13 and sunset at 17:57. On the last day of May, in Swellendam, sunrise is at 07:34 and sunset at 17:37 SAST.
Sunshine
In May, the average sunshine in Swellendam is 6.8h.UV index
In Swellendam, South Africa, the average daily maximum UV index in May is 4. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for ordinary individuals.Note: An average maximum UV index of 4 in May leads to these recommendations:
Be cautious. Those with fair skin can be subjected to burns in fewer than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. Employ a hat with a wide brim for robust protection, cutting UV exposure by half.
Frequently asked questions
What are the temperatures in Swellendam in May?
What is the average humidity in May in Swellendam?
How much does it rain in Swellendam in May?
When it does not snow in Swellendam?
What is the average length of the day in May in Swellendam?
What time are sunrise and sunset in May in Swellendam?
How many hours of sunshine does Swellendam have in May?
How high is the UV index in May in Swellendam?
Average temperature in May
Swellendam, South Africa
- Average high temperature in May: 18.3°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 May: 9.4°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 May
Swellendam, South Africa
- Average pressure in May: 1018.4mbar
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 May
Swellendam, South Africa
- Average wind speed in May: 10.7km/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 May
Swellendam, South Africa
- Average humidity in May: 58%
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 May
Swellendam, South Africa
- Average rainfall in May: 10mm
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 May
Swellendam, South Africa
- Average rainfall days in May: 5.1 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 May
Swellendam, South Africa
- Average snowfall in May: 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 May
Swellendam, South Africa
- Average snowfall days in May: 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 May /
Average sunshine in May
Swellendam, South Africa
- Average daylight in May: 10h and 2min
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 May: 6h and 5min
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 May
Swellendam, South Africa
- Average sunshine days in May: 24.1 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 May
Swellendam, South Africa
- Average UV index in May: 4
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 May
Swellendam, South Africa
- Average cloud cover in May: 24
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 May
Swellendam, South Africa
- Average visibility in May: 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).
Swellendam, South Africa
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