May weather forecast
Oviston, South Africa

May

Weather in May

May, the last month of the autumn in Oviston, is another refreshing month, with an average temperature fluctuating between 18.4°C (65.1°F) and 7.1°C (44.8°F).

Temperature

As Oviston steps into May, the average high-temperature is measured at a comfortable 18.4°C (65.1°F), displaying minor differences from April's 20.9°C (69.6°F). An average low-temperature of 7.1°C (44.8°F) is recorded during the nights in May.

Humidity

The average relative humidity in May is 52%.

Rainfall

In Oviston, South Africa, in May, during 4.7 rainfall days, 9mm (0.35") of precipitation is typically accumulated. Throughout the year, there are 86.2 rainfall days, and 287mm (11.3") of precipitation is accumulated.

Snowfall

January through May, August through December are months without snowfall.

Daylight

The average length of the day in May is 10h and 34min.
On the first day of May, sunrise is at 06:47 and sunset at 17:40. On the last day of the month, sunrise is at 07:05 and sunset at 17:23 SAST.

Sunshine

The average sunshine in May is 7.6h.

UV index

The months with the lowest UV index are May through July, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for the ordinary person.
Note: In May, the average maximum UV index of 3 translates into the following recommendations:
Ensure safety - Sun damage prevention is strongly urged. Stay safe from the Sun's strongest UV rays by limiting exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.

Frequently asked questions

What are May temperatures?
An average high-temperature, in May, in Oviston, is 18.4°C (65.1°F) and the average low-temperature is 7.1°C (44.8°F). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which combines air temperature and relative humidity, in February is estimated at 28°C (82.4°F).
What is the average humidity in May?
In May, the average relative humidity is 52%.
How many days does it rain in May?
In Oviston, South Africa, in May, during 4.7 rainfall days, 9mm (0.35") of precipitation is typically accumulated.
When it does not snow in Oviston?
January through May, August through December are months without snowfall.
Does it snow in May?
In Oviston, in May, it doesn't snow. In June, it regularly snows.
How many hours of daylight does Oviston have in May?
The average day length in May in Oviston is 10h and 34min.
What time are sunrise and sunset in May?
In May, on the first day of the month, sunrise is at 06:47 and sunset at 17:40. On the last day of the month, sunrise is at 07:05 and sunset at 17:23 SAST.
How many hours of sunshine does Oviston have in May?
The average sunshine duration in May is 7.6h.
What are the months with the lowest UV index?
The months with the lowest UV index are May through July, with an average maximum UV index of 3.
How high is the UV index in May?
The average daily maximum UV index in May is 3. A UV Index reading of 3 to 5 represents a medium hazard to health from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Oviston, South Africa
Average temperature in May
Oviston, South Africa
  • Average high temperature in May: 18.4°C

The warmest month (with the highest average high temperature) is January (28.8°C).
The month with the lowest average high temperature is June (14.2°C).

  • Average low temperature in May: 7.1°C

The month with the highest average low temperature is January (16.3°C).
The coldest month (with the lowest average low temperature) is July (2.8°C).

Average pressure in May - Oviston, South Africa
Average pressure in May
Oviston, South Africa
  • Average pressure in May: 1021.2mbar

The month with the highest atmospheric pressure is July (1024.8mbar).
The months with the lowest atmospheric pressure are January and December (1012.9mbar).

Average wind speed in May - Oviston, South Africa
Average wind speed in May
Oviston, South Africa
  • Average wind speed in May: 10.3km/h

The windiest month (with the highest average wind speed) is November (15.8km/h).
The calmest month (with the lowest average wind speed) is May (10.3km/h).

Average humidity in May - Oviston, South Africa
Average humidity in May
Oviston, South Africa
  • Average humidity in May: 52%

The month with the highest relative humidity is June (55%).
The month with the lowest relative humidity is September (35%).

Average rainfall in May - Oviston, South Africa
Average rainfall in May
Oviston, South Africa
  • Average rainfall in May: 9mm

The wettest month (with the highest rainfall) is December (43mm).
The driest month (with the least rainfall) is August (7mm).

Average rainfall days in May - Oviston, South Africa
Average rainfall days in May
Oviston, South Africa
  • Average rainfall days in May: 4.7 days

The month with the highest number of rainy days is December (10 days).
The month with the least rainy days is August (4.1 days).

Average snowfall in May - Oviston, South Africa
Average snowfall in May
Oviston, South Africa
  • Average snowfall in May: 0mm

The month with the highest snowfall is June (3mm).
The months with the least snowfall are January, February, March, April, May, August, September, October, November and December (0mm).

Average snowfall days in May - Oviston, South Africa
Average snowfall days in May
Oviston, South Africa
  • Average snowfall days in May: 0 days

The month with the highest number of snowfall days is June (0.6 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 - Oviston, South Africa
Average daylight in May /
Average sunshine in May
Oviston, South Africa
  • Average daylight in May: 10h and 4min

The month with the longest days is December (Average daylight: 14h and 6min).
The month with the shortest days is June (Average daylight: 10h and 12min).

  • Average sunshine in May: 7h and 4min

The months with the most sunshine are January, October, November and December (Average sunshine: 11h and 54min).
The month with the least sunshine is August (Average sunshine: 7h and 18min).

Average sunshine days in May - Oviston, South Africa
Average sunshine days in May
Oviston, South Africa
  • Average sunshine days in May: 24.8 days

The month with the most sunshine days is July (25.9 days).
The month with the least sunshine days is February (17.2 days).

Average UV index in May - Oviston, South Africa
Average UV index in May
Oviston, South Africa
  • Average UV index in May: 3

The months with the highest UV index are January, February, November and December (UV index 6).
The months with the lowest UV index are May, June and July (UV index 3).

Average cloud cover in May - Oviston, South Africa
Average cloud cover in May
Oviston, South Africa
  • Average cloud cover in May: 11

The month with the most cloud cover is April (Cloud cover 17).
The month with the least cloud cover is August (Cloud cover 9).

Average visibility in May - Oviston, South Africa
Average visibility in May
Oviston, 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).

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