May weather forecast
Germiston, South Africa

May

Weather in May

The last month of the autumn, May, is another pleasant month in Germiston, South Africa, with an average temperature varying between 21°C (69.8°F) and 9.5°C (49.1°F).

Temperature

The advent of May brings an average high-temperature of a still pleasant 21°C (69.8°F), exhibiting minor difference from the previous month. Germiston's temperature tends to fall to an average low of 9.5°C (49.1°F) during the nights of May.

Humidity

The average relative humidity in May in Germiston is 48%.

Rainfall

In Germiston, South Africa, in May, it is raining for 2.8 days, with typically 4mm (0.16") of accumulated precipitation. Throughout the year, there are 117 rainfall days, and 425mm (16.73") of precipitation is accumulated.

Daylight

In Germiston, South Africa, the average length of the day in May is 10h and 50min.
On the first day of May in Germiston, sunrise is at 06:31 and sunset at 17:37. On the last day of the month, sunrise is at 06:46 and sunset at 17:23 SAST.

Sunshine

In May, the average sunshine in Germiston is 7.6h.

UV index

The months with the lowest UV index in Germiston are May through July, with an average maximum UV index of 4. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: A maximum high daily UV index of 4 during May translates into the following directions:
Preventative actions are necessary - Suggestions to safeguard against sun damage are in order. When the Sun is at its strongest around midday, find shade and limit exposure. Wearing a wide-brim hat can block approximately 50% of UV radiation, protecting the eyes.

Frequently asked questions

What are the temperatures in Germiston in May?
In Germiston, in May, the average high-temperature is 21°C (69.8°F), and the average low-temperature is 9.5°C (49.1°F). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in February is estimated at 29°C (84.2°F).
What is the average humidity in May in Germiston?
The average relative humidity in May in Germiston is 48%.
How much does it rain in Germiston in May?
In Germiston, during May, the rain falls for 2.8 days and regularly aggregates up to 4mm (0.16") of precipitation.
How many hours of daylight does Germiston have in May?
In May, the average day length in Germiston, South Africa, is 10h and 50min.
When are sunrise and sunset in May in Germiston?
On the first day of May in Germiston, South Africa, sunrise is at 06:31 and sunset at 17:37. On the last day of the month, sunrise is at 06:46 and sunset at 17:23 SAST.
How long on average sun shines in May in Germiston?
In Germiston, the average sunshine duration in May is 7.6h.
What are the months with the lowest UV index in Germiston?
The months with the lowest UV index in Germiston are May through July, with an average maximum UV index of 4.
What is the UV index reading in May in Germiston?
The average daily maximum UV index in May in Germiston, South Africa, is 4. A UV Index reading of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
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 daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in May - Germiston, South Africa
Average temperature in May
Germiston, South Africa
  • Average high temperature in May: 21°C

The warmest months (with the highest average high temperature) are January, February and December (27.2°C).
The month with the lowest average high temperature is July (17.6°C).

  • Average low temperature in May: 9.5°C

The month with the highest average low temperature is January (16.2°C).
The coldest month (with the lowest average low temperature) is July (6°C).

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

The month with the highest atmospheric pressure is July (1024.7mbar).
The month with the lowest atmospheric pressure is January (1013.3mbar).

Average wind speed in May - Germiston, South Africa
Average wind speed in May
Germiston, South Africa
  • Average wind speed in May: 8km/h

The windiest month (with the highest average wind speed) is November (11.7km/h).
The calmest month (with the lowest average wind speed) is May (8km/h).

Average humidity in May - Germiston, South Africa
Average humidity in May
Germiston, South Africa
  • Average humidity in May: 48%

The month with the highest relative humidity is February (65%).
The month with the lowest relative humidity is September (34%).

Average rainfall in May - Germiston, South Africa
Average rainfall in May
Germiston, South Africa
  • Average rainfall in May: 4mm

The wettest month (with the highest rainfall) is December (86mm).
The driest month (with the least rainfall) is July (1mm).

Average rainfall days in May - Germiston, South Africa
Average rainfall days in May
Germiston, South Africa
  • Average rainfall days in May: 2.8 days

The month with the highest number of rainy days is January (19.8 days).
The month with the least rainy days is July (1.5 days).

Average daylight in May / Average sunshine in May - Germiston, South Africa
Average daylight in May /
Average sunshine in May
Germiston, 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 - Germiston, South Africa
Average sunshine days in May
Germiston, South Africa
  • Average sunshine days in May: 27.3 days

The months with the most sunshine days are July and August (28.8 days).
The month with the least sunshine days is December (7.5 days).

Average UV index in May - Germiston, South Africa
Average UV index in May
Germiston, 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 - Germiston, South Africa
Average cloud cover in May
Germiston, South Africa
  • Average cloud cover in May: 9

The month with the most cloud cover is January (Cloud cover 28).
The month with the least cloud cover is August (Cloud cover 5).

Average visibility in May - Germiston, South Africa
Average visibility in May
Germiston, South Africa
  • Average visibility in May: 10km

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (10km).
The months with the lowest visibility are January and February (9km).

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