May weather forecastSiphofaneni, Swaziland

May

Weather in May

Navigating towards winter, May marks a decrease in temperature to an average low of 11.8°C (53.2°F). The cloud cover reduces drastically, revealing clear skies most of the month. A significant dip in humidity makes the air feel drier, while the pressure remains fairly stable. The city experiences longer sunshine days compared to April. The dwindling daylight hours are a clear signal of the approach of the cold season.

Temperature

May is marked by an average high-temperature of a still moderately hot 23.8°C (74.8°F), almost identical to the preceding month. In Siphofaneni, the nighttime chill during May is a clear shift from the day's highs, with an average of 11.8°C (53.2°F).

Humidity

In May, the average relative humidity in Siphofaneni, Swaziland, is 67%.

Rainfall

In Siphofaneni, during May, the rain falls for 5.5 days and regularly aggregates up to 6mm (0.24") of precipitation. Throughout the year, there are 156.8 rainfall days, and 549mm (21.61") of precipitation is accumulated.

Daylight

The average length of the day in May is 10h and 49min.
On the first day of May, sunrise is at 06:17 and sunset at 17:22. On the last day of the month, sunrise is at 06:33 and sunset at 17:08 SAST.

Sunshine

The average sunshine in May is 7.4h.

UV index

April through October, with an average maximum UV index of 5, are months with the lowest UV index. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum daily UV index of 5 during May translates into the following directions:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. The Sun is most powerful around mid-day, so it's a good practice to reduce direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense.

Updated: Jun 3, 2024
Published by: Weather Atlas | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

May temperatures vary between a high-temperature of 23.8°C (74.8°F) and a low-temperature of 11.8°C (53.2°F). In February, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is calculated to be 31°C (87.8°F).

In May, the average relative humidity is 67%.

In May, the rain falls for 5.5 days. Throughout May, 6mm (0.24") of precipitation is accumulated.

In May, the average day length is 10h and 49min.

In May, on the first day of the month, sunrise is at 06:17 and sunset at 17:22. On the last day of the month, sunrise is at 06:33 and sunset at 17:08 SAST.

The average sunshine duration in May is 7.4h.

April through October, with an average maximum UV index of 5, are months with the lowest UV index in Siphofaneni.

The average daily maximum UV index in May is 5. A UV Index estimate of 3 to 5 represents a medium hazard to health from unsafe exposure to Sun's UV rays.

Today

Tomorrow

Long-term

Year J F M A May J J A S O N D

Apr

May

Jun

Average high temperature

24.3°C

23.8°C

21.7°C

Average low temperature

Average pressure

Average wind speed

Average max. wind speed

7.1km/h

7.5km/h

8.7km/h

Average wind speed gusts

Average humidity

Average rainfall

Average rainfall days

Average daylight

Average sunshine

Average sunshine days

13.7

23.8

25.4

Average UV index

Average cloud cover

Average visibility

Average temperature in May
Siphofaneni, Swaziland

Average high temperature in May: 23.8°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 (21.4°C).

Average low temperature in May: 11.8°C

The month with the highest average low temperature is December (17.5°C).
The coldest month (with the lowest average low temperature) is July (9.3°C).

Average pressure in May
Siphofaneni, Swaziland

Average pressure in May: 1020.3mbar

The month with the highest atmospheric pressure is July (1024.1mbar).
The month with the lowest atmospheric pressure is January (1014mbar).

Average wind speed in May
Siphofaneni, Swaziland

Average wind speed in May: 6.7km/h

The windiest month (with the highest average wind speed) is September (8.2km/h).
The calmest month (with the lowest average wind speed) is March (6.1km/h).

Average humidity in May
Siphofaneni, Swaziland

Average humidity in May: 67%

The months with the highest relative humidity are January and February (82%).
The month with the lowest relative humidity is August (57%).

Average rainfall in May
Siphofaneni, Swaziland

Average rainfall in May: 6mm

The wettest month (with the highest rainfall) is December (110mm).
The driest month (with the least rainfall) is July (4mm).

Average rainfall days in May
Siphofaneni, Swaziland

Average rainfall days in May: 5.5 days

The month with the highest number of rainy days is December (22.7 days).
The month with the least rainy days is June (3.6 days).

Average daylight in May /
Average sunshine in May
Siphofaneni, Swaziland

Average daylight in May: 10h and 48min

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 24min

The month with the most sunshine is November (Average sunshine: 9h and 0min).
The month with the least sunshine is April (Average sunshine: 6h and 24min).

Average sunshine days in May
Siphofaneni, Swaziland

Average sunshine days in May: 23.8 days

The month with the most sunshine days is June (25.4 days).
The month with the least sunshine days is December (5.3 days).

Average UV index in May
Siphofaneni, Swaziland

Average UV index in May: 5

The months with the highest UV index are January, February, March, November and December (UV index 6).
The months with the lowest UV index are April, May, June, July, August, September and October (UV index 5).